Update contributor list in README.md

* Part of issue #5996: Fix IDE warnings in ContributionsListFragment (naming, null-safety, deprecations)

* Part of issue #5996: Clean final IDE warnings (parameter name alignment, remove redundant toggle)

---------

Co-authored-by: Nicolas Raoul <nicolas.raoul@gmail.com>

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -1,7 +1,7 @@
 name: "\U0001F41E Bug report"
 description: Create a report to help us improve.
 title: "[Bug]: "
-labels: ["bug"]
+type: Bug  # Retained to categorize the issue as per organization-level type
 body:
   - type: markdown
     attributes:
@@ -70,7 +70,7 @@ body:
       required: false
   - type: textarea
     attributes:
-      label: Screen-shots
+      label: Screenshots
       description: Add screenshots related to the issue (if available). Can be created by pressing the Volume Down and Power Button at the same time on Android 4.0 and higher.
     validations:
       required: false

.github/workflows/android.yml

@@ -12,17 +12,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up JDK
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
           java-version: '17'
 
       - name: Cache packages
         id: cache-packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.gradle/caches
@@ -37,7 +37,7 @@ jobs:
 
       - name: AVD cache
         if: github.event_name != 'pull_request'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         id: avd-cache
         with:
           path: |
@@ -89,7 +89,7 @@ jobs:
         run: bash ./gradlew assembleBetaDebug --stacktrace
 
       - name: Upload betaDebug APK
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: betaDebugAPK
           path: app/build/outputs/apk/beta/debug/app-*.apk
@@ -98,7 +98,17 @@ jobs:
         run: bash ./gradlew assembleProdDebug --stacktrace
 
       - name: Upload prodDebug APK
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: prodDebugAPK
           path: app/build/outputs/apk/prod/debug/app-*.apk
+
+      - name: Create and PR number artifact
+        run: |
+          echo "{\"pr_number\": ${{ github.event.pull_request.number || 'null' }}}" > pr_number.json
+          
+      - name: Upload PR number artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: pr_number
+          path: ./pr_number.json

.github/workflows/build-beta.yml

@@ -0,0 +1,41 @@
+name: Build beta only
+
+on: [workflow_dispatch]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: gradle
+
+    - name: Access test login credentials
+      run: |
+        echo "TEST_USER_NAME=${{ secrets.TEST_USER_NAME }}" >> local.properties
+        echo "TEST_USER_PASSWORD=${{ secrets.TEST_USER_PASSWORD }}" >> local.properties
+
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+
+    - name: Set env
+      run: echo "COMMIT_SHA=$(git log -n 1 --format='%h')" >> $GITHUB_ENV
+
+    - name: Generate betaDebug APK
+      run: ./gradlew assembleBetaDebug --stacktrace
+
+    - name: Rename betaDebug APK
+      run: mv app/build/outputs/apk/beta/debug/app-*.apk app/build/outputs/apk/beta/debug/apps-android-commons-betaDebug-$COMMIT_SHA.apk
+
+    - name: Upload betaDebug APK
+      uses: actions/upload-artifact@v4
+      with:
+        name: apps-android-commons-betaDebugAPK-${{ env.COMMIT_SHA }}
+        path: app/build/outputs/apk/beta/debug/*.apk
+        retention-days: 30

.github/workflows/comment_artifacts_on_PR.yml

@@ -0,0 +1,96 @@
+name: Comment Artifacts on PR
+
+on:
+  workflow_run:
+    workflows: [ "Android CI" ]
+    types: [ completed ]
+
+permissions:
+  pull-requests: write
+  contents: read
+
+concurrency:
+  group: comment-${{ github.event.workflow_run.id }}
+  cancel-in-progress: true
+
+jobs:
+  comment:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request' }}
+    steps:
+      - name: Download and process artifacts
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs');
+            const runId = context.payload.workflow_run.id;
+
+            const allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: runId,
+            });
+
+            const prNumberArtifact = allArtifacts.data.artifacts.find(artifact => artifact.name === "pr_number");
+            if (!prNumberArtifact) {
+              console.log("pr_number artifact not found.");
+              return;
+            }
+
+            const download = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: prNumberArtifact.id,
+              archive_format: 'zip',
+            });
+
+            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));
+            const { execSync } = require('child_process');
+            execSync('unzip -q pr_number.zip -d ./pr_number/');
+            fs.unlinkSync('pr_number.zip');
+
+            const prData = JSON.parse(fs.readFileSync('./pr_number/pr_number.json', 'utf8'));
+            const prNumber = prData.pr_number;
+
+            if (!prNumber || prNumber === 'null') {
+              console.log("No valid PR number found in pr_number.json. Skipping.");
+              return;
+            }
+
+            const artifactsToLink = allArtifacts.data.artifacts.filter(artifact => artifact.name !== "pr_number");
+            if (artifactsToLink.length === 0) {
+              console.log("No artifacts to link found.");
+              return;
+            }
+
+            const comments = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: Number(prNumber),
+            });
+            
+            const oldComments = comments.data.filter(comment => 
+              comment.body.startsWith("✅ Generated APK variants!")
+            );
+            for (const comment of oldComments) {
+              await github.rest.issues.deleteComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: comment.id,
+              });
+              console.log(`Deleted old comment ID: ${comment.id}`);
+            };
+            
+            const commentBody = `✅ Generated APK variants!\n` + 
+            artifactsToLink.map(artifact => {
+                const artifactUrl = `https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${runId}/artifacts/${artifact.id}`;
+                return `- 🤖 [Download ${artifact.name}](${artifactUrl})`;
+            }).join('\n');
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: Number(prNumber),
+              body: commentBody
+            });

.gitignore

@@ -43,3 +43,8 @@ app/src/main/jniLibs
 #https://docs.opencv.org/3.3.0/
 /libraries/opencv/javadoc/
 captures/*
+
+# Test and other output
+app/jacoco.exec
+app/CommonsContributions
+app/.*

.idea/codeStyles/Project.xml

@@ -16,6 +16,7 @@
       <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="999" />
       <option name="IMPORT_LAYOUT_TABLE">
         <value>
+          <package name="" withSubpackages="true" static="false" module="true" />
           <package name="" withSubpackages="true" static="true" />
           <emptyLine />
           <package name="" withSubpackages="true" static="false" />
@@ -315,9 +316,7 @@
     <codeStyleSettings language="protobuf">
       <option name="RIGHT_MARGIN" value="80" />
       <indentOptions>
-        <option name="INDENT_SIZE" value="2" />
         <option name="CONTINUATION_INDENT_SIZE" value="2" />
-        <option name="TAB_SIZE" value="2" />
       </indentOptions>
     </codeStyleSettings>
   </code_scheme>

.idea/inspectionProfiles/Project_Default.xml

@@ -1,16 +1,36 @@
 <component name="InspectionProjectProfileManager">
   <profile version="1.0">
     <option name="myName" value="Project Default" />
-    <inspection_tool class="AndroidLintNewerVersionAvailable" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="AutoCloseableResource" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ClassWithOnlyPrivateConstructors" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="ComposePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
     <inspection_tool class="ConfusingElse" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="reportWhenNoStatementFollow" value="true" />
     </inspection_tool>
     <inspection_tool class="ControlFlowStatementWithoutBraces" enabled="true" level="ERROR" enabled_by_default="true" />
-    <inspection_tool class="DefaultNotLastCaseInSwitch" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="ExplicitThis" enabled="true" level="WEAK WARNING" enabled_by_default="true" />
-    <inspection_tool class="FieldMayBeFinal" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="GlancePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
     <inspection_tool class="LocalCanBeFinal" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="REPORT_VARIABLES" value="true" />
       <option name="REPORT_PARAMETERS" value="true" />
@@ -24,14 +44,33 @@
     <inspection_tool class="OverlyStrongTypeCast" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="ignoreInMatchingInstanceof" value="false" />
     </inspection_tool>
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDeviceShouldUseNewSpec" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewParameterProviderOnFirstParameter" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
     <inspection_tool class="ProblematicWhitespace" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="ProtectedMemberInFinalClass" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="RedundantFieldInitialization" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="RedundantImplements" enabled="true" level="WARNING" enabled_by_default="true">
       <option name="ignoreSerializable" value="false" />
       <option name="ignoreCloneable" value="false" />
     </inspection_tool>
-    <inspection_tool class="RedundantMethodOverride" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="SimplifiableEqualsExpression" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="TypeParameterExtendsFinalClass" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UnnecessarilyQualifiedStaticUsage" enabled="true" level="WARNING" enabled_by_default="true">
@@ -47,6 +86,5 @@
     <inspection_tool class="UnnecessaryQualifierForThis" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UnnecessarySuperConstructor" enabled="true" level="WARNING" enabled_by_default="true" />
     <inspection_tool class="UnnecessaryThis" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="UnnecessaryToStringCall" enabled="true" level="WARNING" enabled_by_default="true" />
   </profile>
 </component>

.mailmap

@@ -0,0 +1,5 @@
+# See: https://git-scm.com/docs/git-shortlog#_mapping_authors
+#
+Brooke Vibber <bvibber@wikimedia.org>
+Brooke Vibber <bvibber@wikimedia.org> <brion@wikimedia.org>
+Brooke Vibber <bvibber@wikimedia.org> <brion@pobox.com>

CHANGELOG.md

@@ -1,5 +1,291 @@
 # Wikimedia Commons for Android
 
+## v6.0.2
+
+### What's changed
+* Addressed a bug that prevented the keyboard from appearing in various text fields, such as on the upload wizard
+* Links in the "File usages" list are now clickable and will take you to the correct page.
+* Titles for file usages are now clearer and easier to understand
+* Bug fixes and stability improvements
+
+## v6.0.1
+
+### What's changed
+* The app now supports Android 15 with an improved user interface
+* Enhanced Nearby with robust and more reliable labels
+* Bug fixes and stability improvements
+
+## v5.6.1
+
+### What's changed
+* The app no longer uploads images to Wikidata if one exists already for a given item
+* File usage displays correctly now
+* No more infinite circular progress bar on nominating an image for deletion
+* Enhanced location updates while using GPS
+* Author/uploader names are now available in Media Details for Commons licensing compliance
+* Improved usage of popups in Nearby
+* Bug fixes and stability improvements 
+
+## v5.5.0
+
+### What's changed
+* Explore images will now be shown based on the map location and not at your current location
+* Enhanced Wikidata feedback message
+* Green labels in Explore map will no longer be hidden by other pins thumbnails
+* Upload wizard's language drop-down now reflects the language used in the pin label
+* Users can now pick only one image at a time while using the custom selector
+* Bug fixes and stability improvements 
+
+## v5.4.1
+
+### What's changed
+* Custom picker now detects images that are already available on Commons
+* Improve credit line in image list
+* Show place cards with loaded names only in the Nearby list
+* Fix the error that occurs while loading images in Explore
+
+## v5.3.0
+
+### What's changed
+* Enable EmailAuth support
+* Explore map images no longer show "Unknown"
+* Fix crash when removing last two images of multiupload
+* Mark ❌ for closed locations (P3999) in Nearby
+* Fix two pin labels staying visible at the same time in Explore map
+* Refactoring and minor UI improvements
+
+## v5.2.0
+
+v5.2.0 boasts several new functionalities like:
+
+* A new refresh button lets you quickly reload the Nearby map
+* Bookmarks now support categories
+* Improved feedback and consistency in the user interface
+* Bug fixes and performance improvements
+
+### What's changed
+* Implement "Refresh" button to clear the cache and reload the Nearby map.
+* `CommonsApplication` migrate to kotlin & some lint fixes.
+* Revert back to MainScope for database and UI updates and make database operations thread safe.
+* Hide edit options for logged-out users in Explore screen.
+* Introduced a button to delete the current folder in custom selector.
+* Improve Unique File Name Search.
+* Migration of several modules from Java to Kotlin.
+* Fix modification on bottom sheet's data when coming from Nearby Banner and clicked on other pins.
+* Bug fixes and enhancement of Achievements screen.
+* Show where file is being used on Commons and other wikis.
+* Migrate android.media.ExifInterface to androidx.exifinterface.media.ExifInterface as android.media.ExifInterface had security flaws on older devices.
+* Make dialogs modal and always show the upload icon.
+* Fix unintentional deletion of subfolders and non-images by custom selector.
+* Bookmark categories.
+* Add pull down to refresh in the Contributions screen.
+* Fix race condition and lag when loading pin details, faster overlay management.
+* Show cached pins in Nearby even when internet is unavailable
+
+ Full changelog with the list of contributors: [`v5.1.2...v5.2.0`](https://github.com/commons-app/apps-android-commons/compare/v5.1.2...v5.2.0).
+
+
+## v5.1.2
+
+### What's changed
+
+* Fix the broken category search in the explore screen
+
+## v5.1.1
+
+### What's changed
+
+* Use Android's new EXIF interface to mitigate security issues in old
+  EXIF interface.
+* Make the icon that helps view the upload queue always visible as it ensures
+  that the queue accessible at all times.
+
+## v5.1.0
+
+### What's Changed
+
+* Enhanced **upload queue management** in the Commons app for smoother, sequential
+  processing, clearer progress tracking, prevention of stuck or duplicate
+  uploads. As part of this improvement, the "Limited Connection mode" has been
+  removed.
+* Added an option in "Nearby" feature enabling users to **provide feedback on
+  Wikidata items**. Users can report if an item doesn’t exist, is at a different
+  location, or has other issues, with submissions tagged for easy tracking and
+  updates.
+* Improved the "Nearby" feature by splitting the query into two parts for faster
+  loading and **better performance, especially in areas with dense amount of
+  places**. This update also resolves issues with pins overlapping place names.
+* Upgraded AGP and **target/compile SDK to 34** and make necessary adjustments to
+  the app such as adding **"Partial Access" support**. Also includes some minor
+  refactoring, and replacement of deprecated circular progress bars.
+* Fixed an **UI issue where the 'Subcategories' and 'Parent Categories' tabs
+  appeared blank** in the Category Details screen. Resolved by optimizing view
+  binding handling in the parent fragments.
+* Fixed an issue where editing depictions removed all other structured data from
+  images. Now, **only depictions are updated, preserving other associated data**.
+* Fixed **map centering** in the image upload flow to **use GPS EXIF tag location**
+  from pictures and ensured "Show in map app" accurately reflects this location.
+* Fixed navigation **after uploading via Nearby by directing users to the Uploads
+  activity** instead of returning to Nearby, preventing confusion about needing to
+  upload again.
+
+### Bug fixes and various changes
+
+* Improved the "Nearby" feature to fetch labels based on the user's preferred
+  language instead of defaulting to English.
+* Added a legend to the "Nearby" feature indicating pin statuses: red for items
+  without pictures, green for those with pictures, and grey for items being
+  checked. A floating action button now allows users to toggle the legend's
+  visibility.
+* Fixed an issue where the "Nominate for deletion" option is shown to logged out
+  users, preventing app errors and crashes.
+* Updated the regex pattern that filters categories with an year in it to also
+  filter the 2020s.
+* Fix an issue where past depictions were not shown as suggestions, despite
+  being saved correctly.
+* Fixed an issue in custom image picker where exiting the media preview showed
+  only the first image and cleared selections. Now, previously selected images
+  are restored correctly after exiting the preview. This was contributed.
+* Fixed an issue in custom image picker where scrolling behavior did not
+  maintain position after exiting fullscreen preview, ensuring users remain at
+  the same point in their image roll unless actioned images are filtered. This
+  was contributed.
+* Fixed Nearby map not showing new pins on map move by removing the 2000m scroll
+  threshold and adding an 800ms debounce for smoother pin updates when the map
+  is moved. Queued searches are now canceled on fragment destruction.
+* Revised author information retrieval to emphasize the custom author name from
+  the metadata instead of the default registered username.
+* Enhanced notification classification to properly identify "email" type
+  notifications and prompting users to check their e-mail inbox when such
+  notifications are clicked.
+* Resolved a bug in the language chooser that incorrectly greyed-out previously
+  selected languages, ensuring only the current language is non-selectable during
+  image upload.
+* Resolved pin color update issue in "Nearby" feature where the pin colour
+  failed to be updated after a successful image upload.
+
+What's listed here is only a subset of all the changes. Check the full-list of
+the changes in [this link](https://github.com/commons-app/apps-android-commons/compare/v5.0.2...v5.1.0).
+Alternatively, checkout [this release on GitHub releases page](https://github.com/commons-app/apps-android-commons/releases/tag/v5.1.0)
+for an exhaustive list of changes and the various contributors who contributed the same.
+
+## v5.0.2
+
+- Enhanced multi-upload functionality with user prompts to clarify that all images would share the
+  same category and depictions.
+- Show Wikidata description on currently active Nearby pin to provide more useful information.
+- Improve the visibility of map markers by dynamically adjusting their colors based on the app's
+  theme. The map markers will now appear lighter when the app is in dark mode and darker when the
+  app is in light mode. This change aims to enhance marker visibility and improve the overall user
+  experience.
+- Added information on where user feedback is posted, helping users track existing feedback and
+  monitor their own submissions.
+- Enhanced the edit location screen of the upload screen by centering the map on the picture's
+  location from metadata when editing, or on the device's GPS location if metadata is unavailable,
+  improving accuracy and user experience.
+- Ensured the 'Add Location' button is renamed to 'Edit Location' when copying the location of a
+  recently uploaded image, enhancing clarity and user experience.
+- Added a ProgressBar to the media detail screen to indicate image loading status, enhancing user
+  experience by showing loading progress until the image is fully loaded.
+- Fixed an issue where caption and description fields would intermittently disappear when using
+  voice input, ensuring text remains visible and stable across all entries.
+- Fixed a crash that occurred when attempting to remove multiple instances of caption/description
+  fields after initially adding them.
+- Improve the text in the prompt shown when skipping login to sound more natural.
+- Modified feedback addition logic to append new sections at the bottom of the page, ensuring
+  auto-archiving of sections functions correctly on the feedback page.
+- Resolved issue where the app failed to clear cookies upon logout.
+
+## v5.0.1
+
+Same as v5.0.0 except this fixes some R8 rules to ensure that the release
+variants of the app work as intended.
+
+## v5.0.0
+
+### What's Changed
+
+- Redesigned the map feature to **replace Mapbox with the osmdroid library**.
+  Key elements like pin visualization and user-centered display are still
+  included in this redesign. This is done to guard against possible misuse of
+  the Mapbox token and, more crucially, to keep the app from becoming dependent
+  on a service that charges for usage but offers a free tier.
+
+  With this change, the app retrieves the map tiles from [Wikimedia maps](https://maps.wikimedia.org).
+- Add the ability to **export locations of nearby missing pictures in GPX and
+  KML formats**. This allows users to browse the locations with desired radius
+  for offline use in their favourite map apps like OsmAnd or Maps.me, enhancing
+  accessibility  and offline functionality.
+- **Limited the uploads via the custom image picker** to a maximum of 20.
+- Added two menu choices for **transparent image backgrounds**, giving users the
+  option of either a black or white background, increasing adaptability to
+  various theme settings.
+
+  User customization option has been provided with the
+  ability to save background color selections permanently on a per image basis.
+- Implemented functionality to **automatically resume uploads** that become
+  stuck due to app termination or device reboot.
+- Added a **compass arrow in the Nearby banner** shown in the "Contributions"
+  screen to guide users towards the nearest item, thus providing the missing
+  directional cues. The arrow dynamically adjusts based on device rotation,
+  aligning with the calculated bearing towards the  target location. Further,
+  the distance and direction are updated as the user moves.
+- Implemented **voice input feature** for caption and description fields,
+  enabling users to dictate text directly into these fields.
+- Improved various flows in the app to **redirect users to the login page** and
+  display a  persistent message **if their session becomes invalid** due to a
+  password  change, enhancing user guidance and security measures.
+
+### Revamps and refactorings
+
+- **Revamped initial upload screen layout and the description edit screen layout**
+  for enhanced user experience and ensuring better symmetry in the design.
+- **Replaced Butterknife with ViewBinding** in various places of the app.
+- Transferred essential code from **the redundant data-client module** to the
+  main Commons app code, enabling its integration and facilitating the removal
+  of the redundant module. Further, convert various parts of the code to Kotlin.
+- **Revamped the various location permission flows** to ensure consistency for
+  the sake of a better user experience.
+
+### Bug fixes and various changes
+
+- Resolved an issue where paused uploads that were subsequently cancelled were
+  still being uploaded.
+- Fixed an issue where some user information such as upload count were not
+  displayed in the "Contributions" and "Profile" screens.
+- Fixed the long-standing broken *"Picture of the Day" widget* to restore its
+  usability.
+- Resolved an issue where some categories were hidden at the top of Upload
+  Wizard suggestions.
+- Resolved an issue where there was a grey empty screen at Upload wizard when
+  the app was denied the files permission.
+- Implemented logic to bypass media in Peer Review if the current reviewer is
+  also the user who uploaded the media.
+- Corrected arrow image behaviour in the first upload screen: now displays down
+  arrow when details card is fully visible, aligning with expected user
+  interaction.
+- Updated app icon to improve visibility and recognition on F-Droid.
+- Fixed issue causing all pictures to disappear and activity to reload fully in
+  the custom image selector after marking a picture as 'not for  upload', now
+  ensuring only the selected picture is removed as expected.
+
+What's listed here is only a subset of all the changes. Check the full-list of
+the changes in [this link](https://github.com/commons-app/apps-android-commons/compare/v4.2.1...v5.0.0).
+Alternatively, checkout [this release on GitHub releases page](https://github.com/commons-app/apps-android-commons/releases/tag/v5.0.0)
+for an exhaustive list of changes and the various contributors who contributed the same.
+
+## v4.2.1
+
+- Provide the ability to edit an image to losslessly rotate it while uploading
+- Fix a bug in v4.2.0 where the nearby places were not loading
+- Fix a bug where editing depictions was showing a progress bar indefinitely
+- In the upload screen, use different map icons to indicate if image is being uploaded with location
+  metadata
+- For nearby uploads, it is no longer possible to deselect the item's category and depiction
+- The Mapbox account key used by the app has been changed
+- Category search now shows exact matches without any discrepancies
+- Various bug and crash fixes
+
 ## v4.2.0
 - Dark mode colour improvements
 - Enhancements done to address location metadata loss including the metadata loss that occurs in

CREDITS

@@ -53,7 +53,6 @@ their contribution to the product.
 * Butterknife
 * GSON
 * Timber
-* MapBox
 
 3rd party open source apps from which significant code has been reused:
 * Android Wikipedia app https://github.com/wikimedia/apps-android-wikipedia

README.md

@@ -1,6 +1,6 @@
 # Wikimedia Commons Android app
 ![GitHub issue custom search](https://img.shields.io/github/issues-search?label=%22good%20first%20issue%22%20issues&query=repo%3Acommons-app%2Fapps-android-commons%20is%3Aissue%20is%3Aopen%20label%3A%22good%20first%20issue%22)
-[![Build status](https://github.com/commons-app/apps-android-commons/actions/workflows/android.yml/badge.svg?branch=master)](https://github.com/commons-app/apps-android-commons/actions?query=branch%3Amaster)
+[![Build status](https://github.com/commons-app/apps-android-commons/actions/workflows/android.yml/badge.svg?branch=main)](https://github.com/commons-app/apps-android-commons/actions?query=branch%3Amain)
 [![Preview the app](https://img.shields.io/badge/Preview-Appetize.io-orange.svg)](https://appetize.io/app/8ywtpe9f8tb8h6bey11c92vkcw)
 [![codecov](https://codecov.io/gh/commons-app/apps-android-commons/branch/master/graph/badge.svg)](https://codecov.io/gh/commons-app/apps-android-commons)
 
@@ -29,11 +29,12 @@ Thank you all for your work!
 
 | [<img src="https://avatars.githubusercontent.com/u/3611199?v=4" width="100px;"/><br /><sub><b>misaochan</b></sub>](https://github.com/misaochan) | [<img src="https://avatars.githubusercontent.com/u/24829418?v=4" width="100px;"/><br /><sub><b>translatewiki</b></sub>](https://github.com/translatewiki) | [<img src="https://avatars.githubusercontent.com/u/3127881?v=4" width="100px;"/><br /><sub><b>neslihanturan</b></sub>](https://github.com/neslihanturan) | [<img src="https://avatars.githubusercontent.com/u/30430?v=4" width="100px;"/><br /><sub><b>yuvipanda</b></sub>](https://github.com/yuvipanda) | [<img src="https://avatars.githubusercontent.com/u/99590?v=4" width="100px;"/><br /><sub><b>nicolas-raoul</b></sub>](https://github.com/nicolas-raoul) |
 | :---: | :---: | :---: | :---: | :---: |
-| [<img src="https://avatars.githubusercontent.com/u/4953590?v=4" width="100px;"/><br /><sub><b>domdomegg</b></sub>](https://github.com/domdomegg) | [<img src="https://avatars.githubusercontent.com/u/3069373?v=4" width="100px;"/><br /><sub><b>maskaravivek</b></sub>](https://github.com/maskaravivek) | [<img src="https://avatars.githubusercontent.com/u/407647?v=4" width="100px;"/><br /><sub><b>psh</b></sub>](https://github.com/psh) | [<img src="https://avatars.githubusercontent.com/u/103075?v=4" width="100px;"/><br /><sub><b>brion</b></sub>](https://github.com/brion) | [<img src="https://avatars.githubusercontent.com/u/17375274?v=4" width="100px;"/><br /><sub><b>ashishkumar468</b></sub>](https://github.com/ashishkumar468) |
+| [<img src="https://avatars.githubusercontent.com/u/407647?v=4" width="100px;"/><br /><sub><b>psh</b></sub>](https://github.com/psh) | [<img src="https://avatars.githubusercontent.com/u/4953590?v=4" width="100px;"/><br /><sub><b>domdomegg</b></sub>](https://github.com/domdomegg) | [<img src="https://avatars.githubusercontent.com/u/3069373?v=4" width="100px;"/><br /><sub><b>maskaravivek</b></sub>](https://github.com/maskaravivek) | [<img src="https://avatars.githubusercontent.com/u/30932899?v=4" width="100px;"/><br /><sub><b>madhurgupta10</b></sub>](https://github.com/madhurgupta10) | [<img src="https://avatars.githubusercontent.com/u/17375274?v=4" width="100px;"/><br /><sub><b>ashishkumar468</b></sub>](https://github.com/ashishkumar468) |
-| [<img src="https://avatars.githubusercontent.com/u/10674?v=4" width="100px;"/><br /><sub><b>whym</b></sub>](https://github.com/whym) | [<img src="https://avatars.githubusercontent.com/u/10153800?v=4" width="100px;"/><br /><sub><b>akaita</b></sub>](https://github.com/akaita) | [<img src="https://avatars.githubusercontent.com/u/30932899?v=4" width="100px;"/><br /><sub><b>madhurgupta10</b></sub>](https://github.com/madhurgupta10) | [<img src="https://avatars.githubusercontent.com/u/6900601?v=4" width="100px;"/><br /><sub><b>veyndan</b></sub>](https://github.com/veyndan) | [<img src="https://avatars.githubusercontent.com/u/19607555?v=4" width="100px;"/><br /><sub><b>ujjwalagrawal17</b></sub>](https://github.com/ujjwalagrawal17) |
+| [<img src="https://avatars.githubusercontent.com/u/103075?v=4" width="100px;"/><br /><sub><b>bvibber</b></sub>](https://github.com/bvibber) | [<img src="https://avatars.githubusercontent.com/u/10674?v=4" width="100px;"/><br /><sub><b>whym</b></sub>](https://github.com/whym) | [<img src="https://avatars.githubusercontent.com/u/10153800?v=4" width="100px;"/><br /><sub><b>akaita</b></sub>](https://github.com/akaita) | [<img src="https://avatars.githubusercontent.com/u/12448084?v=4" width="100px;"/><br /><sub><b>sivaraam</b></sub>](https://github.com/sivaraam) | [<img src="https://avatars.githubusercontent.com/u/6900601?v=4" width="100px;"/><br /><sub><b>veyndan</b></sub>](https://github.com/veyndan) |
-| [<img src="https://avatars.githubusercontent.com/u/3358282?v=4" width="100px;"/><br /><sub><b>macgills</b></sub>](https://github.com/macgills) | [<img src="https://avatars.githubusercontent.com/u/1682214?v=4" width="100px;"/><br /><sub><b>dbrant</b></sub>](https://github.com/dbrant) | [<img src="https://avatars.githubusercontent.com/u/34261945?v=4" width="100px;"/><br /><sub><b>vanshikaarora</b></sub>](https://github.com/vanshikaarora) | [<img src="https://avatars.githubusercontent.com/u/1345681?v=4" width="100px;"/><br /><sub><b>sandarumk</b></sub>](https://github.com/sandarumk) | [<img src="https://avatars.githubusercontent.com/u/29161745?v=4" width="100px;"/><br /><sub><b>tanvidadu</b></sub>](https://github.com/tanvidadu) |
+| [<img src="https://avatars.githubusercontent.com/u/19607555?v=4" width="100px;"/><br /><sub><b>ujjwalagrawal17</b></sub>](https://github.com/ujjwalagrawal17) | [<img src="https://avatars.githubusercontent.com/u/3358282?v=4" width="100px;"/><br /><sub><b>macgills</b></sub>](https://github.com/macgills) | [<img src="https://avatars.githubusercontent.com/u/346271?v=4" width="100px;"/><br /><sub><b>amire80</b></sub>](https://github.com/amire80) | [<img src="https://avatars.githubusercontent.com/u/1682214?v=4" width="100px;"/><br /><sub><b>dbrant</b></sub>](https://github.com/dbrant) | [<img src="https://avatars.githubusercontent.com/u/34261945?v=4" width="100px;"/><br /><sub><b>vanshikaarora</b></sub>](https://github.com/vanshikaarora) |
-| [<img src="https://avatars.githubusercontent.com/u/39745544?v=4" width="100px;"/><br /><sub><b>cypherop</b></sub>](https://github.com/cypherop) | [<img src="https://avatars.githubusercontent.com/u/6953323?v=4" width="100px;"/><br /><sub><b>tobias47n9e</b></sub>](https://github.com/tobias47n9e) | [<img src="https://avatars.githubusercontent.com/u/25305892?v=4" width="100px;"/><br /><sub><b>hismaeel</b></sub>](https://github.com/hismaeel) | [<img src="https://avatars.githubusercontent.com/u/12574756?v=4" width="100px;"/><br /><sub><b>tshradheya</b></sub>](https://github.com/tshradheya) | [<img src="https://avatars.githubusercontent.com/u/3308769?v=4" width="100px;"/><br /><sub><b>addshore</b></sub>](https://github.com/addshore) |
+| [<img src="https://avatars.githubusercontent.com/u/83745993?v=4" width="100px;"/><br /><sub><b>RitikaPahwa4444</b></sub>](https://github.com/RitikaPahwa4444) | [<img src="https://avatars.githubusercontent.com/u/71203077?v=4" width="100px;"/><br /><sub><b>Ayan-10</b></sub>](https://github.com/Ayan-10) | [<img src="https://avatars.githubusercontent.com/u/101377978?v=4" width="100px;"/><br /><sub><b>rohit9625</b></sub>](https://github.com/rohit9625) | [<img src="https://avatars.githubusercontent.com/u/126143257?v=4" width="100px;"/><br /><sub><b>shashankiitbhu</b></sub>](https://github.com/shashankiitbhu) | [<img src="https://avatars.githubusercontent.com/u/54663429?v=4" width="100px;"/><br /><sub><b>Pratham2305</b></sub>](https://github.com/Pratham2305) |
-| [<img src="https://avatars.githubusercontent.com/u/20313518?v=4" width="100px;"/><br /><sub><b>knight-shade</b></sub>](https://github.com/knight-shade) | [<img src="https://avatars.githubusercontent.com/u/210297?v=4" width="100px;"/><br /><sub><b>siebrand</b></sub>](https://github.com/siebrand) | [<img src="https://avatars.githubusercontent.com/u/12448084?v=4" width="100px;"/><br /><sub><b>sivaraam</b></sub>](https://github.com/sivaraam) | [<img src="https://avatars.githubusercontent.com/u/5329780?v=4" width="100px;"/><br /><sub><b>Bluesir9</b></sub>](https://github.com/Bluesir9) | [<img src="https://avatars.githubusercontent.com/u/44129798?v=4" width="100px;"/><br /><sub><b>kbhardwaj123</b></sub>](https://github.com/kbhardwaj123) |
+| [<img src="https://avatars.githubusercontent.com/u/111801812?v=4" width="100px;"/><br /><sub><b>parneet-guraya</b></sub>](https://github.com/parneet-guraya) | [<img src="https://avatars.githubusercontent.com/u/1345681?v=4" width="100px;"/><br /><sub><b>sandarumk</b></sub>](https://github.com/sandarumk) | [<img src="https://avatars.githubusercontent.com/u/29161745?v=4" width="100px;"/><br /><sub><b>tanvidadu</b></sub>](https://github.com/tanvidadu) | [<img src="https://avatars.githubusercontent.com/u/39745544?v=4" width="100px;"/><br /><sub><b>cypherop</b></sub>](https://github.com/cypherop) | [<img src="https://avatars.githubusercontent.com/u/65972015?v=4" width="100px;"/><br /><sub><b>Prince-kushwaha</b></sub>](https://github.com/Prince-kushwaha) |
+
 
 
 .. and [many more](https://github.com/commons-app/apps-android-commons/graphs/contributors).
@@ -45,7 +46,7 @@ This software is open source, licensed under the [Apache License 2.0][10].
 
 [1]: https://play.google.com/store/apps/details?id=fr.free.nrw.commons
 [2]: https://commons-app.github.io/
-[3]: https://github.com/commons-app/apps-android-commons/issues
+[3]: https://github.com/commons-app/apps-android-commons/issues?q=is%3Aopen+is%3Aissue+no%3Aassignee+-label%3Adebated+label%3Abug+-label%3A%22low+priority%22+-label%3Aupstream
 
 [4]: https://github.com/commons-app/commons-app-documentation/blob/master/android/README.md#-android-documentation
 [5]: https://github.com/commons-app/commons-app-documentation/blob/master/android/README.md#-user-documentation

app/build.gradle

@@ -1,383 +0,0 @@
-plugins {
-    id 'com.github.triplet.play' version '2.7.2' apply false
-}
-apply from: '../gitutils.gradle'
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-kapt'
-apply plugin: 'kotlin-android-extensions'
-apply from: "$rootDir/jacoco.gradle"
-
-def isRunningOnTravisAndIsNotPRBuild = System.getenv("CI") == "true" && file('../play.p12').exists()
-
-if (isRunningOnTravisAndIsNotPRBuild) {
-    apply plugin: 'com.github.triplet.play'
-}
-
-dependencies {
-
-    implementation project(':wikimedia-data-client')
-    // Utils
-    implementation 'in.yuvi:http.fluent:1.3'
-    implementation 'com.google.code.gson:gson:2.8.5'
-    implementation ("com.squareup.okhttp3:okhttp:$OKHTTP_VERSION!!"){
-        // Forcing dependency versions using force = true on a first-level dependency has been deprecated.
-        //  Ref: https://docs.gradle.org/7.5/userguide/upgrading_version_5.html#forced_dependencies
-        //force = true //API 19 support
-    }
-    implementation 'com.squareup.okio:okio:2.2.2'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
-    implementation 'io.reactivex.rxjava2:rxjava:2.2.3'
-    implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
-    implementation 'com.jakewharton.rxbinding3:rxbinding-appcompat:3.0.0'
-    implementation 'com.jakewharton.rxbinding2:rxbinding-support-v4:2.1.1'
-    implementation 'com.jakewharton.rxbinding2:rxbinding-appcompat-v7:2.1.1'
-    implementation 'com.jakewharton.rxbinding2:rxbinding-design:2.1.1'
-    implementation 'com.facebook.fresco:fresco:1.13.0'
-    implementation 'org.apache.commons:commons-lang3:3.8.1'
-
-    // UI
-    implementation 'fr.avianey.com.viewpagerindicator:library:2.4.1.1@aar'
-    implementation 'com.github.chrisbanes:PhotoView:2.0.0'
-    implementation 'com.github.pedrovgs:renderers:3.3.3'
-    implementation "org.maplibre.gl:android-sdk:$MAPLIBRE_VERSION"
-    implementation 'org.maplibre.gl:android-plugin-scalebar-v9:1.0.0'
-
-    implementation 'com.jakewharton.timber:timber:4.7.1'
-    implementation 'com.github.deano2390:MaterialShowcaseView:1.2.0'
-    implementation 'com.dinuscxj:circleprogressbar:1.1.1'
-    implementation 'com.karumi:dexter:5.0.0'
-    implementation "com.jakewharton:butterknife:$BUTTERKNIFE_VERSION"
-    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
-
-    kapt "com.jakewharton:butterknife-compiler:$BUTTERKNIFE_VERSION"
-    implementation "com.hannesdorfmann:adapterdelegates4-kotlin-dsl-viewbinding:$ADAPTER_DELEGATES_VERSION"
-    implementation "com.hannesdorfmann:adapterdelegates4-pagination:$ADAPTER_DELEGATES_VERSION"
-    implementation "androidx.paging:paging-runtime-ktx:$PAGING_VERSION"
-    testImplementation "androidx.paging:paging-common-ktx:$PAGING_VERSION"
-    implementation "androidx.paging:paging-rxjava2-ktx:$PAGING_VERSION"
-    implementation "androidx.recyclerview:recyclerview:1.2.0-alpha02"
-    implementation "com.squareup.okhttp3:okhttp-ws:$OKHTTP_VERSION"
-
-    // Logging
-    implementation 'ch.acra:acra-dialog:5.8.4'
-    implementation 'ch.acra:acra-mail:5.8.4'
-    implementation 'org.slf4j:slf4j-api:1.7.25'
-    api('com.github.tony19:logback-android-classic:1.1.1-6') {
-        exclude group: 'com.google.android', module: 'android'
-    }
-    implementation "com.squareup.okhttp3:logging-interceptor:$OKHTTP_VERSION"
-
-    // Dependency injector
-    implementation "com.google.dagger:dagger-android:$DAGGER_VERSION"
-    implementation "com.google.dagger:dagger-android-support:$DAGGER_VERSION"
-    kapt "com.google.dagger:dagger-android-processor:$DAGGER_VERSION"
-    kapt "com.google.dagger:dagger-compiler:$DAGGER_VERSION"
-    annotationProcessor "com.google.dagger:dagger-android-processor:$DAGGER_VERSION"
-
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$KOTLIN_VERSION"
-    implementation "org.jetbrains.kotlin:kotlin-reflect:$KOTLIN_VERSION"
-
-    //Mocking
-    testImplementation 'com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0'
-    testImplementation 'org.mockito:mockito-inline:2.13.0'
-    testImplementation 'org.mockito:mockito-core:2.25.1'
-    testImplementation "org.powermock:powermock-module-junit4:2.0.2"
-    testImplementation "org.powermock:powermock-api-mockito2:2.0.2"
-
-    // Unit testing
-    testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.robolectric:robolectric:4.10.3'
-    testImplementation 'androidx.test:core:1.4.0'
-    testImplementation "com.squareup.okhttp3:mockwebserver:$OKHTTP_VERSION"
-    testImplementation "com.jraska.livedata:testing-ktx:1.1.2"
-    testImplementation "androidx.arch.core:core-testing:2.1.0"
-    testImplementation "org.junit.jupiter:junit-jupiter-api:5.7.0"
-    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.7.0"
-    testImplementation 'com.facebook.soloader:soloader:0.10.1'
-    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:1.5.0"
-
-    // Android testing
-    androidTestImplementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$KOTLIN_VERSION"
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0-alpha04'
-    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.4.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.5.0-alpha04'
-    androidTestImplementation 'androidx.test:runner:1.4.0'
-    androidTestImplementation 'androidx.test:rules:1.4.1-alpha04'
-    androidTestImplementation 'androidx.test:core:1.4.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.annotation:annotation:1.3.0'
-    androidTestImplementation 'com.squareup.okhttp3:mockwebserver:4.8.0'
-    androidTestImplementation "androidx.test.uiautomator:uiautomator:2.2.0"
-    androidTestUtil 'androidx.test:orchestrator:1.4.1'
-
-    // Debugging
-    debugImplementation "com.squareup.leakcanary:leakcanary-android:$LEAK_CANARY_VERSION"
-
-    // Support libraries
-    implementation "com.google.android.material:material:1.1.0-alpha04"
-    implementation "androidx.browser:browser:1.3.0"
-    implementation "androidx.cardview:cardview:1.0.0"
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation "androidx.exifinterface:exifinterface:1.3.2"
-    implementation "androidx.core:core-ktx:$CORE_KTX_VERSION"
-    implementation "androidx.multidex:multidex:2.0.1"
-    implementation 'com.simplecityapps:recyclerview-fastscroll:2.0.1'
-
-    //swipe_layout
-    implementation 'com.daimajia.swipelayout:library:1.2.0@aar'
-
-    //Room
-    implementation "androidx.room:room-runtime:$ROOM_VERSION"
-    implementation "androidx.room:room-ktx:$ROOM_VERSION"
-    implementation "androidx.room:room-rxjava2:$ROOM_VERSION"
-    kapt "androidx.room:room-compiler:$ROOM_VERSION"
-    // For Kotlin use kapt instead of annotationProcessor
-    implementation 'com.squareup.retrofit2:retrofit:2.8.1'
-    testImplementation "androidx.arch.core:core-testing:2.1.0"
-
-    // Pref
-    // Java language implementation
-    implementation "androidx.preference:preference:$PREFERENCE_VERSION"
-    // Kotlin
-    implementation "androidx.preference:preference-ktx:$PREFERENCE_VERSION"
-
-    implementation "androidx.multidex:multidex:$MULTIDEX_VERSION"
-
-    def work_version = "2.8.1"
-    // Kotlin + coroutines
-    implementation "androidx.work:work-runtime-ktx:$work_version"
-    implementation("androidx.work:work-runtime:$work_version")
-    testImplementation "androidx.work:work-testing:$work_version"
-
-    //Glide
-    implementation 'com.github.bumptech.glide:glide:4.12.0'
-    annotationProcessor 'com.github.bumptech.glide:compiler:4.12.0'
-
-    implementation("io.github.coordinates2country:coordinates2country-android:1.3") {  exclude group: 'com.google.android', module: 'android' }
-}
-
-task disableAnimations(type: Exec) {
-    def adb = "$System.env.ANDROID_HOME/platform-tools/adb"
-    commandLine "$adb", 'shell', 'settings', 'put', 'global', 'window_animation_scale', '0'
-    commandLine "$adb", 'shell', 'settings', 'put', 'global', 'transition_animation_scale', '0'
-    commandLine "$adb", 'shell', 'settings', 'put', 'global', 'animator_duration_scale', '0'
-}
-
-project.gradle.taskGraph.whenReady {
-    connectedBetaDebugAndroidTest.dependsOn disableAnimations
-    connectedProdDebugAndroidTest.dependsOn disableAnimations
-}
-
-android {
-    compileSdkVersion 33
-
-    defaultConfig {
-        //applicationId 'fr.free.nrw.commons'
-
-        versionCode 1035
-        versionName '4.2.0'
-        setProperty("archivesBaseName", "app-commons-v$versionName-" + getBranchName())
-
-        minSdkVersion 21
-        targetSdkVersion 33
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        testInstrumentationRunnerArguments clearPackageData: 'true'
-
-        multiDexEnabled true
-
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-
-        vectorDrawables.useSupportLibrary = true
-    }
-    packagingOptions {
-        jniLibs {
-            excludes += ['META-INF/androidx.*']
-        }
-        resources {
-            excludes += ['META-INF/androidx.*', 'META-INF/proguard/androidx-annotations.pro']
-        }
-    }
-
-
-    testOptions {
-        animationsDisabled true
-
-        unitTests.returnDefaultValues = true
-        unitTests.includeAndroidResources = true
-
-        unitTests.all {
-            jvmArgs '-noverify'
-        }
-    }
-
-    sourceSets {
-        // use kotlin only in tests (for now)
-        test.java.srcDirs += 'src/test/kotlin'
-
-        // use main assets and resources in test
-        test.assets.srcDirs += 'src/main/assets'
-        test.resources.srcDirs += 'src/main/resoures'
-    }
-
-    signingConfigs {
-        release
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-            testProguardFile 'test-proguard-rules.txt'
-            signingConfig signingConfigs.debug
-            if (isRunningOnTravisAndIsNotPRBuild) {
-                signingConfig signingConfigs.release
-            }
-        }
-        debug {
-            minifyEnabled false
-            testCoverageEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
-            testProguardFile 'test-proguard-rules.txt'
-            versionNameSuffix "-debug-" + getBranchName()
-        }
-    }
-
-    if (isRunningOnTravisAndIsNotPRBuild) {
-        // configure keystore based on env vars in Travis for automated alpha builds
-        signingConfigs.release.storeFile = file("../nr-commons.keystore")
-        signingConfigs.release.storePassword = System.getenv("keystore_password")
-        signingConfigs.release.keyAlias = System.getenv("key_alias")
-        signingConfigs.release.keyPassword = System.getenv("key_password")
-    }
-
-    configurations.all {
-        resolutionStrategy.force 'androidx.annotation:annotation:1.1.0'
-        resolutionStrategy.force 'com.jakewharton.timber:timber:4.7.1'
-        resolutionStrategy.force 'androidx.fragment:fragment:1.3.6'
-        exclude module: 'okhttp-ws'
-    }
-    flavorDimensions 'tier'
-    productFlavors {
-        prod {
-
-            applicationId 'fr.free.nrw.commons'
-
-            buildConfigField "String", "WIKIMEDIA_API_POTD", "\"https://commons.wikimedia.org/w/api.php?action=featuredfeed&feed=potd&feedformat=rss&language=en\""
-            buildConfigField "String", "WIKIMEDIA_API_HOST", "\"https://commons.wikimedia.org/w/api.php\""
-            buildConfigField "String", "WIKIDATA_API_HOST", "\"https://www.wikidata.org/w/api.php\""
-            buildConfigField "String", "WIKIDATA_URL", "\"https://www.wikidata.org\""
-            buildConfigField "String", "WIKIMEDIA_FORGE_API_HOST", "\"https://tools.wmflabs.org/\""
-            buildConfigField "String", "WIKIMEDIA_CAMPAIGNS_URL", "\"https://raw.githubusercontent.com/commons-app/campaigns/master/campaigns.json\""
-            buildConfigField "String", "IMAGE_URL_BASE", "\"https://upload.wikimedia.org/wikipedia/commons\""
-            buildConfigField "String", "HOME_URL", "\"https://commons.wikimedia.org/wiki/\""
-            buildConfigField "String", "COMMONS_URL", "\"https://commons.wikimedia.org\""
-            buildConfigField "String", "WIKIDATA_URL", "\"https://www.wikidata.org\""
-            buildConfigField "String", "MOBILE_HOME_URL", "\"https://commons.m.wikimedia.org/wiki/\""
-            buildConfigField "String", "SIGNUP_LANDING_URL", "\"https://commons.m.wikimedia.org/w/index.php?title=Special:CreateAccount&returnto=Main+Page&returntoquery=welcome%3Dyes\""
-            buildConfigField "String", "SIGNUP_SUCCESS_REDIRECTION_URL", "\"https://commons.m.wikimedia.org/w/index.php?title=Main_Page&welcome=yes\""
-            buildConfigField "String", "FORGOT_PASSWORD_URL", "\"https://commons.wikimedia.org/wiki/Special:PasswordReset\""
-            buildConfigField "String", "PRIVACY_POLICY_URL", "\"https://github.com/commons-app/commons-app-documentation/blob/master/android/Privacy-policy.md\""
-            buildConfigField "String", "ACCOUNT_TYPE", "\"fr.free.nrw.commons\""
-            buildConfigField "String", "CONTRIBUTION_AUTHORITY", "\"fr.free.nrw.commons.contributions.contentprovider\""
-            buildConfigField "String", "MODIFICATION_AUTHORITY", "\"fr.free.nrw.commons.modifications.contentprovider\""
-            buildConfigField "String", "CATEGORY_AUTHORITY", "\"fr.free.nrw.commons.categories.contentprovider\""
-            buildConfigField "String", "RECENT_SEARCH_AUTHORITY", "\"fr.free.nrw.commons.explore.recentsearches.contentprovider\""
-            buildConfigField "String", "RECENT_LANGUAGE_AUTHORITY", "\"fr.free.nrw.commons.recentlanguages.contentprovider\""
-            buildConfigField "String", "BOOKMARK_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.contentprovider\""
-            buildConfigField "String", "BOOKMARK_LOCATIONS_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.locations.contentprovider\""
-            buildConfigField "String", "BOOKMARK_ITEMS_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.items.contentprovider\""
-            buildConfigField "String", "COMMIT_SHA", "\"" + getBuildVersion().toString() + "\""
-            buildConfigField "String", "TEST_USERNAME", "\"" + getTestUserName() + "\""
-            buildConfigField "String", "TEST_PASSWORD", "\"" + getTestPassword() + "\""
-            buildConfigField "String", "DEPICTS_PROPERTY", "\"P180\""
-
-            dimension 'tier'
-        }
-
-        beta {
-            applicationId 'fr.free.nrw.commons.beta'
-
-            // What values do we need to hit the BETA versions of the site / api ?
-            buildConfigField "String", "WIKIMEDIA_API_POTD", "\"https://commons.wikimedia.org/w/api.php?action=featuredfeed&feed=potd&feedformat=rss&language=en\""
-            buildConfigField "String", "WIKIMEDIA_API_HOST", "\"https://commons.wikimedia.beta.wmflabs.org/w/api.php\""
-            buildConfigField "String", "WIKIDATA_API_HOST", "\"https://www.wikidata.org/w/api.php\""
-            buildConfigField "String", "WIKIDATA_URL", "\"https://www.wikidata.org\""
-            buildConfigField "String", "WIKIMEDIA_FORGE_API_HOST", "\"https://tools.wmflabs.org/\""
-            buildConfigField "String", "WIKIMEDIA_CAMPAIGNS_URL", "\"https://raw.githubusercontent.com/commons-app/campaigns/master/campaigns_beta_active.json\""
-            buildConfigField "String", "IMAGE_URL_BASE", "\"https://upload.beta.wmflabs.org/wikipedia/commons\""
-            buildConfigField "String", "HOME_URL", "\"https://commons.wikimedia.beta.wmflabs.org/wiki/\""
-            buildConfigField "String", "COMMONS_URL", "\"https://commons.wikimedia.beta.wmflabs.org\""
-            buildConfigField "String", "WIKIDATA_URL", "\"https://www.wikidata.org\""
-            buildConfigField "String", "MOBILE_HOME_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/wiki/\""
-            buildConfigField "String", "SIGNUP_LANDING_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/w/index.php?title=Special:CreateAccount&returnto=Main+Page&returntoquery=welcome%3Dyes\""
-            buildConfigField "String", "SIGNUP_SUCCESS_REDIRECTION_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/w/index.php?title=Main_Page&welcome=yes\""
-            buildConfigField "String", "FORGOT_PASSWORD_URL", "\"https://commons.wikimedia.beta.wmflabs.org/wiki/Special:PasswordReset\""
-            buildConfigField "String", "PRIVACY_POLICY_URL", "\"https://github.com/commons-app/commons-app-documentation/blob/master/android/Privacy-policy.md\""
-            buildConfigField "String", "ACCOUNT_TYPE", "\"fr.free.nrw.commons.beta\""
-            buildConfigField "String", "CONTRIBUTION_AUTHORITY", "\"fr.free.nrw.commons.beta.contributions.contentprovider\""
-            buildConfigField "String", "MODIFICATION_AUTHORITY", "\"fr.free.nrw.commons.beta.modifications.contentprovider\""
-            buildConfigField "String", "CATEGORY_AUTHORITY", "\"fr.free.nrw.commons.beta.categories.contentprovider\""
-            buildConfigField "String", "RECENT_SEARCH_AUTHORITY", "\"fr.free.nrw.commons.beta.explore.recentsearches.contentprovider\""
-            buildConfigField "String", "RECENT_LANGUAGE_AUTHORITY", "\"fr.free.nrw.commons.beta.recentlanguages.contentprovider\""
-            buildConfigField "String", "BOOKMARK_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.contentprovider\""
-            buildConfigField "String", "BOOKMARK_LOCATIONS_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.locations.contentprovider\""
-            buildConfigField "String", "BOOKMARK_ITEMS_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.items.contentprovider\""
-            buildConfigField "String", "COMMIT_SHA", "\"" + getBuildVersion().toString() + "\""
-            buildConfigField "String", "TEST_USERNAME", "\"" + getTestUserName() + "\""
-            buildConfigField "String", "TEST_PASSWORD", "\"" + getTestPassword() + "\""
-            buildConfigField "String", "DEPICTS_PROPERTY", "\"P245962\""
-
-            dimension 'tier'
-        }
-    }
-
-
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
-    }
-
-    buildToolsVersion buildToolsVersion
-
-    buildFeatures {
-        viewBinding true
-    }
-    namespace 'fr.free.nrw.commons'
-    lint {
-        abortOnError false
-        disable 'MissingTranslation', 'ExtraTranslation'
-    }
-}
-
-String getTestUserName() {
-    def propFile = rootProject.file("./local.properties")
-    def properties = new Properties()
-    properties.load(new FileInputStream(propFile))
-    return properties['TEST_USER_NAME']
-}
-
-String getTestPassword() {
-    def propFile = rootProject.file("./local.properties")
-    def properties = new Properties()
-    properties.load(new FileInputStream(propFile))
-    return properties['TEST_USER_PASSWORD']
-}
-
-if (isRunningOnTravisAndIsNotPRBuild) {
-    play {
-        track = "alpha"
-        userFraction = 1
-        serviceAccountEmail = System.getenv("SERVICE_ACCOUNT_NAME")
-        serviceAccountCredentials = file("../play.p12")
-
-        resolutionStrategy = "auto"
-        outputProcessor { // this: ApkVariantOutput
-            versionNameOverride = "$versionNameOverride.$versionCode"
-        }
-    }
-}
-
-androidExtensions {
-    experimental = true
-}

app/build.gradle.kts

@@ -0,0 +1,447 @@
+import java.util.Properties
+import java.io.ByteArrayOutputStream
+
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.jetbrains.kotlin.android)
+    alias(libs.plugins.kotlin.kapt)
+    alias(libs.plugins.kotlin.parcelize)
+}
+
+apply(from = "$rootDir/jacoco.gradle")
+
+val isRunningOnTravisAndIsNotPRBuild = System.getenv("CI") == "true" && file("../play.p12").exists()
+
+if (isRunningOnTravisAndIsNotPRBuild) {
+    apply(plugin = "com.github.triplet.play")
+}
+
+android {
+    namespace = "fr.free.nrw.commons"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "fr.free.nrw.commons"
+        minSdk = 21
+        targetSdk = 35
+        versionCode = 1059
+        versionName = "6.1.0"
+
+        setProperty("archivesBaseName", "app-commons-v$versionName-" + getBranchName())
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunnerArguments["clearPackageData"] = "true"
+
+        multiDexEnabled = true
+
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    sourceSets {
+        getByName("test") {
+            // Use kotlin only in tests (for now)
+            java.srcDirs("src/test/kotlin")
+
+            // Use main assets and resources in test
+            assets.srcDirs("src/main/assets")
+            resources.srcDirs("src/main/resources")
+        }
+    }
+
+    signingConfigs {
+        create("release") {
+            // Configure keystore based on env vars in Travis for automated alpha builds
+            if(isRunningOnTravisAndIsNotPRBuild) {
+                storeFile = file("../nr-commons.keystore")
+                storePassword = System.getenv("keystore_password")
+                keyAlias = System.getenv("key_alias")
+                keyPassword = System.getenv("key_password")
+            }
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = true
+            proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.txt")
+            testProguardFile("test-proguard-rules.txt")
+
+            signingConfig = signingConfigs.getByName("debug")
+            if (isRunningOnTravisAndIsNotPRBuild) {
+                signingConfig = signingConfigs.getByName("release")
+            }
+        }
+        debug {
+            isMinifyEnabled = false
+            proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.txt")
+            testProguardFile("test-proguard-rules.txt")
+
+            versionNameSuffix = "-debug-" + getBranchName()
+            enableUnitTestCoverage = true
+            enableAndroidTestCoverage = true
+        }
+    }
+
+    configurations.all {
+        resolutionStrategy {
+            force("androidx.annotation:annotation:1.1.0")
+            force("com.jakewharton.timber:timber:4.7.1")
+            force("androidx.fragment:fragment:1.3.6")
+        }
+        exclude(module = "okhttp-ws")
+    }
+
+    flavorDimensions += "tier"
+    productFlavors {
+        create("prod") {
+            dimension = "tier"
+            applicationId = "fr.free.nrw.commons"
+
+            buildConfigField("String", "WIKIMEDIA_API_POTD", "\"https://commons.wikimedia.org/w/api.php?action=featuredfeed&feed=potd&feedformat=rss&language=en\"")
+            buildConfigField("String", "WIKIMEDIA_API_HOST", "\"https://commons.wikimedia.org/w/api.php\"")
+            buildConfigField("String", "WIKIDATA_API_HOST", "\"https://www.wikidata.org/w/api.php\"")
+            buildConfigField("String", "WIKIDATA_URL", "\"https://www.wikidata.org\"")
+            buildConfigField("String", "WIKIMEDIA_FORGE_API_HOST", "\"https://tools.wmflabs.org/\"")
+            buildConfigField("String", "WIKIMEDIA_CAMPAIGNS_URL", "\"https://raw.githubusercontent.com/commons-app/campaigns/master/campaigns.json\"")
+            buildConfigField("String", "IMAGE_URL_BASE", "\"https://upload.wikimedia.org/wikipedia/commons\"")
+            buildConfigField("String", "HOME_URL", "\"https://commons.wikimedia.org/wiki/\"")
+            buildConfigField("String", "COMMONS_URL", "\"https://commons.wikimedia.org\"")
+            buildConfigField("String", "WIKIDATA_URL", "\"https://www.wikidata.org\"")
+            buildConfigField("String", "MOBILE_HOME_URL", "\"https://commons.m.wikimedia.org/wiki/\"")
+            buildConfigField("String", "MOBILE_META_URL", "\"https://meta.m.wikimedia.org/wiki/\"")
+            buildConfigField("String", "SIGNUP_LANDING_URL", "\"https://commons.m.wikimedia.org/w/index.php?title=Special:CreateAccount&returnto=Main+Page&returntoquery=welcome%3Dyes\"")
+            buildConfigField("String", "SIGNUP_SUCCESS_REDIRECTION_URL", "\"https://commons.m.wikimedia.org/w/index.php?title=Main_Page&welcome=yes\"")
+            buildConfigField("String", "FORGOT_PASSWORD_URL", "\"https://commons.wikimedia.org/wiki/Special:PasswordReset\"")
+            buildConfigField("String", "PRIVACY_POLICY_URL", "\"https://github.com/commons-app/commons-app-documentation/blob/master/android/Privacy-policy.md\"")
+            buildConfigField("String", "FILE_USAGES_BASE_URL", "\"https://commons.wikimedia.org/w/api.php?action=query&format=json&formatversion=2\"")
+            buildConfigField("String", "ACCOUNT_TYPE", "\"fr.free.nrw.commons\"")
+            buildConfigField("String", "CONTRIBUTION_AUTHORITY", "\"fr.free.nrw.commons.contributions.contentprovider\"")
+            buildConfigField("String", "MODIFICATION_AUTHORITY", "\"fr.free.nrw.commons.modifications.contentprovider\"")
+            buildConfigField("String", "CATEGORY_AUTHORITY", "\"fr.free.nrw.commons.categories.contentprovider\"")
+            buildConfigField("String", "RECENT_SEARCH_AUTHORITY", "\"fr.free.nrw.commons.explore.recentsearches.contentprovider\"")
+            buildConfigField("String", "RECENT_LANGUAGE_AUTHORITY", "\"fr.free.nrw.commons.recentlanguages.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_LOCATIONS_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.locations.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_ITEMS_AUTHORITY", "\"fr.free.nrw.commons.bookmarks.items.contentprovider\"")
+            buildConfigField("String", "COMMIT_SHA", "\"" + getBuildVersion().toString() + "\"")
+            buildConfigField("String", "TEST_USERNAME", "\"" + getTestUserName() + "\"")
+            buildConfigField("String", "TEST_PASSWORD", "\"" + getTestPassword() + "\"")
+            buildConfigField("String", "DEPICTS_PROPERTY", "\"P180\"")
+            buildConfigField("String", "CREATOR_PROPERTY", "\"P170\"")
+        }
+
+        create("beta") {
+            dimension = "tier"
+            applicationId = "fr.free.nrw.commons.beta"
+
+            // What values do we need to hit the BETA versions of the site / api ?
+            buildConfigField("String", "WIKIMEDIA_API_POTD", "\"https://commons.wikimedia.org/w/api.php?action=featuredfeed&feed=potd&feedformat=rss&language=en\"")
+            buildConfigField("String", "WIKIMEDIA_API_HOST", "\"https://commons.wikimedia.beta.wmflabs.org/w/api.php\"")
+            buildConfigField("String", "WIKIDATA_API_HOST", "\"https://www.wikidata.org/w/api.php\"")
+            buildConfigField("String", "WIKIDATA_URL", "\"https://www.wikidata.org\"")
+            buildConfigField("String", "WIKIMEDIA_FORGE_API_HOST", "\"https://tools.wmflabs.org/\"")
+            buildConfigField("String", "WIKIMEDIA_CAMPAIGNS_URL", "\"https://raw.githubusercontent.com/commons-app/campaigns/master/campaigns_beta_active.json\"")
+            buildConfigField("String", "IMAGE_URL_BASE", "\"https://upload.beta.wmflabs.org/wikipedia/commons\"")
+            buildConfigField("String", "HOME_URL", "\"https://commons.wikimedia.beta.wmflabs.org/wiki/\"")
+            buildConfigField("String", "COMMONS_URL", "\"https://commons.wikimedia.beta.wmflabs.org\"")
+            buildConfigField("String", "WIKIDATA_URL", "\"https://www.wikidata.org\"")
+            buildConfigField("String", "MOBILE_HOME_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/wiki/\"")
+            buildConfigField("String", "MOBILE_META_URL", "\"https://meta.m.wikimedia.beta.wmflabs.org/wiki/\"")
+            buildConfigField("String", "SIGNUP_LANDING_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/w/index.php?title=Special:CreateAccount&returnto=Main+Page&returntoquery=welcome%3Dyes\"")
+            buildConfigField("String", "SIGNUP_SUCCESS_REDIRECTION_URL", "\"https://commons.m.wikimedia.beta.wmflabs.org/w/index.php?title=Main_Page&welcome=yes\"")
+            buildConfigField("String", "FORGOT_PASSWORD_URL", "\"https://commons.wikimedia.beta.wmflabs.org/wiki/Special:PasswordReset\"")
+            buildConfigField("String", "PRIVACY_POLICY_URL", "\"https://github.com/commons-app/commons-app-documentation/blob/master/android/Privacy-policy.md\"")
+            buildConfigField("String", "FILE_USAGES_BASE_URL", "\"https://commons.wikimedia.org/w/api.php?action=query&format=json&formatversion=2\"")
+            buildConfigField("String", "ACCOUNT_TYPE", "\"fr.free.nrw.commons.beta\"")
+            buildConfigField("String", "CONTRIBUTION_AUTHORITY", "\"fr.free.nrw.commons.beta.contributions.contentprovider\"")
+            buildConfigField("String", "MODIFICATION_AUTHORITY", "\"fr.free.nrw.commons.beta.modifications.contentprovider\"")
+            buildConfigField("String", "CATEGORY_AUTHORITY", "\"fr.free.nrw.commons.beta.categories.contentprovider\"")
+            buildConfigField("String", "RECENT_SEARCH_AUTHORITY", "\"fr.free.nrw.commons.beta.explore.recentsearches.contentprovider\"")
+            buildConfigField("String", "RECENT_LANGUAGE_AUTHORITY", "\"fr.free.nrw.commons.beta.recentlanguages.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_LOCATIONS_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.locations.contentprovider\"")
+            buildConfigField("String", "BOOKMARK_ITEMS_AUTHORITY", "\"fr.free.nrw.commons.beta.bookmarks.items.contentprovider\"")
+            buildConfigField("String", "COMMIT_SHA", "\"" + getBuildVersion().toString() + "\"")
+            buildConfigField("String", "TEST_USERNAME", "\"" + getTestUserName() + "\"")
+            buildConfigField("String", "TEST_PASSWORD", "\"" + getTestPassword() + "\"")
+            buildConfigField("String", "DEPICTS_PROPERTY", "\"P245962\"")
+            buildConfigField("String", "CREATOR_PROPERTY", "\"P253075\"")
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+    buildFeatures {
+        buildConfig = true
+        viewBinding = true
+        compose = true
+    }
+    buildToolsVersion = buildToolsVersion
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.8"
+    }
+    packaging {
+        jniLibs {
+            excludes += listOf("META-INF/androidx.*")
+        }
+        resources {
+            excludes += listOf(
+                "META-INF/androidx.*",
+                "META-INF/proguard/androidx-annotations.pro",
+                "/META-INF/LICENSE.md",
+                "/META-INF/LICENSE-notice.md"
+            )
+        }
+    }
+    testOptions {
+        animationsDisabled = true
+        unitTests {
+            isReturnDefaultValues = true
+            isIncludeAndroidResources = true
+        }
+        unitTests.all {
+            it.jvmArgs("-noverify")
+        }
+    }
+    lint {
+        abortOnError = false
+        disable += listOf("MissingTranslation", "ExtraTranslation")
+    }
+}
+
+dependencies {
+    // Utils
+    implementation(libs.gson)
+    implementation(libs.okhttp)
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.gson)
+    implementation(libs.retrofit.adapter.rxjava)
+    implementation(libs.rxandroid)
+    implementation(libs.rxjava)
+    implementation(libs.rxbinding)
+    implementation(libs.rxbinding.appcompat)
+    implementation(libs.facebook.fresco)
+    implementation(libs.facebook.fresco.middleware)
+    implementation(libs.apache.commons.lang3)
+
+    // UI
+    implementation("${libs.viewpagerindicator.library.get()}@aar")
+    implementation(libs.photoview)
+    implementation(libs.android.sdk)
+    implementation(libs.android.plugin.scalebar)
+
+    implementation(libs.timber)
+    implementation(libs.android.material)
+    implementation(libs.dexter)
+
+    // Jetpack Compose
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.compose.runtime)
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.ui.graphics)
+    implementation(libs.androidx.ui.tooling.preview)
+    implementation(libs.androidx.ui.viewbinding)
+    implementation(libs.androidx.material3)
+    implementation(libs.androidx.foundation)
+    implementation(libs.androidx.foundation.layout)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.ui.test.junit4)
+    debugImplementation(libs.androidx.ui.tooling)
+    debugImplementation(libs.androidx.ui.test.manifest)
+
+    implementation(libs.adapterdelegates4.kotlin.dsl.viewbinding)
+    implementation(libs.adapterdelegates4.pagination)
+    implementation(libs.androidx.paging.runtime.ktx)
+    testImplementation(libs.androidx.paging.common.ktx)
+    implementation(libs.androidx.paging.rxjava2.ktx)
+    implementation(libs.androidx.recyclerview)
+
+    // Logging
+    implementation(libs.acra.dialog)
+    implementation(libs.acra.mail)
+    implementation(libs.slf4j.api)
+    implementation(libs.logback.android.classic) {
+        exclude(group = "com.google.android", module = "android")
+    }
+    implementation(libs.logging.interceptor)
+
+    // Dependency injector
+    implementation(libs.dagger.android)
+    implementation(libs.dagger.android.support)
+    kapt(libs.dagger.android.processor)
+    kapt(libs.dagger.compiler)
+    annotationProcessor(libs.dagger.android.processor)
+
+    implementation(libs.kotlin.reflect)
+
+    //Mocking
+    testImplementation(libs.mockito.kotlin)
+    testImplementation(libs.mockito.core)
+    testImplementation(libs.powermock.module.junit)
+    testImplementation(libs.powermock.api.mockito)
+    testImplementation(libs.mockk)
+
+    // Unit testing
+    testImplementation(libs.junit)
+    testImplementation(libs.robolectric)
+    testImplementation(libs.androidx.test.core)
+    testImplementation(libs.androidx.runner)
+    testImplementation(libs.androidx.test.ext.junit)
+    testImplementation(libs.androidx.test.rules)
+    testImplementation(libs.mockwebserver)
+    testImplementation(libs.livedata.testing.ktx)
+    testImplementation(libs.androidx.core.testing)
+    testImplementation(libs.junit.jupiter.api)
+    testRuntimeOnly(libs.junit.jupiter.engine)
+    testImplementation(libs.soloader)
+    testImplementation(libs.kotlinx.coroutines.test)
+    debugImplementation(libs.androidx.fragment.testing)
+    testImplementation(libs.commons.io)
+
+    // Android testing
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(libs.androidx.espresso.intents)
+    androidTestImplementation(libs.androidx.espresso.contrib)
+    androidTestImplementation(libs.androidx.runner)
+    androidTestImplementation(libs.androidx.test.rules)
+    androidTestImplementation(libs.androidx.test.core)
+    androidTestImplementation(libs.androidx.test.ext.junit)
+    androidTestImplementation(libs.androidx.annotation)
+    androidTestImplementation(libs.mockwebserver)
+    androidTestImplementation(libs.androidx.uiautomator)
+
+    // Debugging
+    debugImplementation(libs.leakcanary.android)
+
+    // Support libraries
+    implementation(libs.androidx.browser)
+    implementation(libs.androidx.cardview)
+    implementation(libs.androidx.constraintlayout)
+    implementation(libs.androidx.exifinterface)
+    implementation(libs.recyclerview.fastscroll)
+
+    //swipe_layout
+    implementation(libs.swipelayout.library)
+
+    //Room
+    implementation(libs.androidx.room.runtime)
+    implementation(libs.androidx.room.ktx)
+    implementation(libs.androidx.room.rxjava)
+    kapt(libs.androidx.room.compiler)
+
+    // Preferences
+    implementation(libs.androidx.preference)
+    implementation(libs.androidx.preference.ktx)
+
+    //Android Media
+    implementation(libs.juanitobananas.androidDmediaUtil)
+    implementation(libs.androidx.multidex)
+
+    // Kotlin + coroutines
+    implementation(libs.androidx.work.runtime.ktx)
+    implementation(libs.androidx.work.runtime)
+    implementation(libs.kotlinx.coroutines.rx2)
+    testImplementation(libs.androidx.work.testing)
+
+    //Glide
+    implementation(libs.glide)
+    annotationProcessor(libs.glide.compiler)
+    kaptTest(libs.androidx.databinding.compiler)
+    kaptAndroidTest(libs.androidx.databinding.compiler)
+
+    implementation(libs.coordinates2country.android) {
+        exclude(group = "com.google.android", module = "android")
+    }
+
+    //OSMDroid
+    implementation(libs.osmdroid.android)
+    constraints {
+        implementation(libs.kotlin.stdlib.jdk7) {
+            because("kotlin-stdlib-jdk7 is now a part of kotlin-stdlib")
+        }
+        implementation(libs.kotlin.stdlib.jdk8) {
+            because("kotlin-stdlib-jdk8 is now a part of kotlin-stdlib")
+        }
+    }
+}
+
+tasks.register<Exec>("disableAnimations") {
+    val adb = "${System.getenv("ANDROID_HOME")}/platform-tools/adb"
+    commandLine(adb, "shell", "settings", "put", "global", "window_animation_scale", "0")
+    commandLine(adb, "shell", "settings", "put", "global", "transition_animation_scale", "0")
+    commandLine(adb, "shell", "settings", "put", "global", "animator_duration_scale", "0")
+}
+
+project.gradle.taskGraph.whenReady {
+    val connectedBetaDebugAndroidTest = tasks.named("connectedBetaDebugAndroidTest")
+    val connectedProdDebugAndroidTest = tasks.named("connectedProdDebugAndroidTest")
+
+    connectedBetaDebugAndroidTest.configure {
+        dependsOn("disableAnimations")
+    }
+    connectedProdDebugAndroidTest.configure {
+        dependsOn("disableAnimations")
+    }
+}
+
+fun getTestUserName(): String? {
+    val propFile = rootProject.file("./local.properties")
+    val properties = Properties()
+    propFile.inputStream().use { properties.load(it) }
+    return properties.getProperty("TEST_USER_NAME")
+}
+
+fun getTestPassword(): String? {
+    val propFile = rootProject.file("./local.properties")
+    val properties = Properties()
+    propFile.inputStream().use { properties.load(it) }
+    return properties.getProperty("TEST_USER_PASSWORD")
+}
+
+if (isRunningOnTravisAndIsNotPRBuild) {
+    configure<com.github.triplet.gradle.play.PlayPublisherExtension> {
+        track = "alpha"
+        userFraction = 1.0
+        serviceAccountEmail = System.getenv("SERVICE_ACCOUNT_NAME")
+        serviceAccountCredentials = file("../play.p12")
+
+        resolutionStrategy = "auto"
+        outputProcessor { // this: ApkVariantOutput
+            versionNameOverride = "$versionNameOverride.$versionCode"
+        }
+    }
+}
+
+fun getBuildVersion(): String? {
+    return try {
+        val stdout = ByteArrayOutputStream()
+        exec {
+            commandLine("git", "rev-parse", "--short", "HEAD")
+            standardOutput = stdout
+        }
+        stdout.toString().trim()
+    } catch (e: Exception) {
+        null
+    }
+}
+
+fun getBranchName(): String? {
+    return try {
+        val stdout = ByteArrayOutputStream()
+        exec {
+            commandLine("git", "rev-parse", "--abbrev-ref", "HEAD")
+            standardOutput = stdout
+        }
+        stdout.toString().trim()
+    } catch (e: Exception) {
+        null
+    }
+}

app/proguard-rules.txt

@@ -31,8 +31,17 @@
 -keepattributes Signature
 # Retain declared checked exceptions for use by a Proxy instance.
 -keepattributes Exceptions
-# Classes used by retrofit to fetch API repsonse
+
--keepclasseswithmembers class org.wikipedia.** { *; }
+# Note: The model package right now seems to include some other classes that
+# are not used for serialization / deserialization over Gson. Hopefully
+# that's not a problem since it only prevents R8 from avoiding trimming
+# of few more classes.
+-keepclasseswithmembers class fr.free.nrw.commons.*.model.** { *; }
+-keepclasseswithmembers class fr.free.nrw.commons.actions.** { *; }
+-keepclasseswithmembers class fr.free.nrw.commons.auth.csrf.** { *; }
+-keepclasseswithmembers class fr.free.nrw.commons.auth.login.** { *; }
+-keepclasseswithmembers class fr.free.nrw.commons.wikidata.mwapi.** { *; }
+
 # --- /Retrofit ---
 
 # --- OkHttp + Okio ---
@@ -57,6 +66,9 @@
 # Application classes that will be serialized/deserialized over Gson
 -keep class com.google.gson.examples.android.model.** { *; }
 
+# Prevent R8 from obfuscating project classes used by Gson for parsing
+-keep class fr.free.nrw.commons.fileusages.** { *; }
+
 # Prevent proguard from stripping interface information from TypeAdapterFactory,
 # JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
 -keep class * implements com.google.gson.TypeAdapterFactory

app/src/androidTest/java/fr/free/nrw/commons/AboutActivityTest.kt

@@ -25,7 +25,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class AboutActivityTest {
-
     @get:Rule
     var activityRule: ActivityTestRule<*> = ActivityTestRule(AboutActivity::class.java)
 
@@ -36,7 +35,8 @@ class AboutActivityTest {
         device.setOrientationNatural()
         device.freezeRotation()
         Intents.init()
-        Intents.intending(CoreMatchers.not(IntentMatchers.isInternal()))
+        Intents
+            .intending(CoreMatchers.not(IntentMatchers.isInternal()))
             .respondWith(Instrumentation.ActivityResult(Activity.RESULT_OK, null))
     }
 
@@ -47,11 +47,12 @@ class AboutActivityTest {
 
     @Test
     fun testBuildNumber() {
-        Espresso.onView(ViewMatchers.withId(R.id.about_version))
+        Espresso
+            .onView(ViewMatchers.withId(R.id.about_version))
             .check(
                 ViewAssertions.matches(
-                    withText(getApplicationContext<CommonsApplication>().getVersionNameWithSha())
+                    withText(getApplicationContext<CommonsApplication>().getVersionNameWithSha()),
-                )
+                ),
             )
     }
 
@@ -61,8 +62,8 @@ class AboutActivityTest {
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(Urls.WEBSITE_URL)
+                IntentMatchers.hasData(Urls.WEBSITE_URL),
-            )
+            ),
         )
     }
 
@@ -73,8 +74,8 @@ class AboutActivityTest {
             CoreMatchers.anyOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
                 IntentMatchers.hasData(Urls.FACEBOOK_WEB_URL),
-                IntentMatchers.hasPackage(Urls.FACEBOOK_PACKAGE_NAME)
+                IntentMatchers.hasPackage(Urls.FACEBOOK_PACKAGE_NAME),
-            )
+            ),
         )
     }
 
@@ -84,8 +85,8 @@ class AboutActivityTest {
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(Urls.GITHUB_REPO_URL)
+                IntentMatchers.hasData(Urls.GITHUB_REPO_URL),
-            )
+            ),
         )
     }
 
@@ -95,8 +96,8 @@ class AboutActivityTest {
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(BuildConfig.PRIVACY_POLICY_URL)
+                IntentMatchers.hasData(BuildConfig.PRIVACY_POLICY_URL),
-            )
+            ),
         )
     }
 
@@ -104,12 +105,12 @@ class AboutActivityTest {
     fun testLaunchTranslate() {
         Espresso.onView(ViewMatchers.withId(R.id.about_translate)).perform(ViewActions.click())
         Espresso.onView(ViewMatchers.withId(android.R.id.button1)).perform(ViewActions.click())
-        val langCode = CommonsApplication.getInstance().languageLookUpTable.codes[0]
+        val langCode = CommonsApplication.instance.languageLookUpTable!!.getCodes()[0]
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData("${Urls.TRANSLATE_WIKI_URL}$langCode")
+                IntentMatchers.hasData("${Urls.TRANSLATE_WIKI_URL}$langCode"),
-            )
+            ),
         )
     }
 
@@ -119,27 +120,30 @@ class AboutActivityTest {
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(Urls.CREDITS_URL)
+                IntentMatchers.hasData(Urls.CREDITS_URL),
-            )
+            ),
         )
     }
 
     @Test
     fun testLaunchUserGuide() {
         Espresso.onView(ViewMatchers.withId(R.id.about_user_guide)).perform(ViewActions.click())
-        Intents.intended(CoreMatchers.allOf(IntentMatchers.hasAction(Intent.ACTION_VIEW),
+        Intents.intended(
-            IntentMatchers.hasData(Urls.USER_GUIDE_URL)))
+            CoreMatchers.allOf(
+                IntentMatchers.hasAction(Intent.ACTION_VIEW),
+                IntentMatchers.hasData(Urls.USER_GUIDE_URL),
+            ),
+        )
     }
 
-
     @Test
     fun testLaunchAboutFaq() {
         Espresso.onView(ViewMatchers.withId(R.id.about_faq)).perform(ViewActions.click())
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(Urls.FAQ_URL)
+                IntentMatchers.hasData(Urls.FAQ_URL),
-            )
+            ),
         )
     }
 }

app/src/androidTest/java/fr/free/nrw/commons/LoginActivityTest.kt

@@ -18,12 +18,14 @@ import fr.free.nrw.commons.auth.LoginActivity
 import fr.free.nrw.commons.auth.SignupActivity
 import org.hamcrest.CoreMatchers
 import org.hamcrest.CoreMatchers.not
-import org.junit.*
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
 import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class LoginActivityTest {
-
     @get:Rule
     var activityRule = ActivityTestRule(LoginActivity::class.java)
 
@@ -49,8 +51,8 @@ class LoginActivityTest {
         Intents.intended(
             CoreMatchers.allOf(
                 IntentMatchers.hasAction(Intent.ACTION_VIEW),
-                IntentMatchers.hasData(BuildConfig.FORGOT_PASSWORD_URL)
+                IntentMatchers.hasData(BuildConfig.FORGOT_PASSWORD_URL),
-            )
+            ),
         )
     }
 
@@ -64,4 +66,4 @@ class LoginActivityTest {
     fun orientationChange() {
         UITestHelper.changeOrientation(activityRule)
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/MainActivityTest.kt

@@ -21,20 +21,23 @@ import fr.free.nrw.commons.kvstore.JsonKvStore
 import fr.free.nrw.commons.notification.NotificationActivity
 import org.hamcrest.CoreMatchers
 import org.hamcrest.Matchers
-import org.junit.*
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
 import org.junit.runner.RunWith
 
 @LargeTest
 @RunWith(AndroidJUnit4::class)
 class MainActivityTest {
-
     @get:Rule
     var activityRule: ActivityTestRule<*> = ActivityTestRule(LoginActivity::class.java)
 
     @get:Rule
-    var mGrantPermissionRule: GrantPermissionRule = GrantPermissionRule.grant(
+    var mGrantPermissionRule: GrantPermissionRule =
-        "android.permission.ACCESS_FINE_LOCATION"
+        GrantPermissionRule.grant(
-    )
+            "android.permission.ACCESS_FINE_LOCATION",
+        )
 
     private val device: UiDevice =
         UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
@@ -48,7 +51,8 @@ class MainActivityTest {
         UITestHelper.loginUser()
         UITestHelper.skipWelcome()
         Intents.init()
-        Intents.intending(CoreMatchers.not(IntentMatchers.isInternal()))
+        Intents
+            .intending(CoreMatchers.not(IntentMatchers.isInternal()))
             .respondWith(Instrumentation.ActivityResult(Activity.RESULT_OK, null))
         val context = InstrumentationRegistry.getInstrumentation().targetContext
         val storeName = context.packageName + "_preferences"
@@ -62,169 +66,149 @@ class MainActivityTest {
 
     @Test
     fun testNearby() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                childAtPosition(
+                Matchers.allOf(
                     childAtPosition(
-                        ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                        childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        1,
                     ),
-                    1
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
+        Espresso
-        ).perform(ViewActions.click())
+            .onView(ViewMatchers.withId(R.id.fragmentContainer))
-        Espresso.onView(ViewMatchers.withId(R.id.fragmentContainer))
             .check(matches(ViewMatchers.isDisplayed()))
         UITestHelper.sleep(10000)
-        val actionMenuItemView2 = Espresso.onView(
+        val actionMenuItemView2 =
-            Matchers.allOf(
+            Espresso.onView(
-                ViewMatchers.withId(R.id.list_sheet), ViewMatchers.withContentDescription("List"),
+                Matchers.allOf(
-                childAtPosition(
+                    ViewMatchers.withId(R.id.list_sheet),
+                    ViewMatchers.withContentDescription("List"),
                     childAtPosition(
-                        ViewMatchers.withId(R.id.toolbar),
+                        childAtPosition(
-                        1
+                            ViewMatchers.withId(R.id.toolbar),
+                            1,
+                        ),
+                        0,
                     ),
-                    0
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
             )
-        )
         actionMenuItemView2.perform(ViewActions.click())
         UITestHelper.sleep(1000)
     }
 
     @Test
     fun testExplore() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                childAtPosition(
+                Matchers.allOf(
                     childAtPosition(
-                        ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                        childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        2,
                     ),
-                    2
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
+        Espresso
-        ).perform(ViewActions.click())
+            .onView(ViewMatchers.withId(R.id.fragmentContainer))
-        Espresso.onView(ViewMatchers.withId(R.id.fragmentContainer))
             .check(matches(ViewMatchers.isDisplayed()))
         UITestHelper.sleep(1000)
     }
 
     @Test
     fun testContributions() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                childAtPosition(
+                Matchers.allOf(
                     childAtPosition(
-                        ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                        childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        0,
                     ),
-                    0
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
+        Espresso
-        ).perform(ViewActions.click())
+            .onView(ViewMatchers.withId(R.id.fragmentContainer))
-        Espresso.onView(ViewMatchers.withId(R.id.fragmentContainer))
             .check(matches(ViewMatchers.isDisplayed()))
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                ViewMatchers.withId(R.id.contributionImage),
+                Matchers.allOf(
-                childAtPosition(
+                    ViewMatchers.withId(R.id.contributionImage),
                     childAtPosition(
-                        ViewMatchers.withId(R.id.contributionsList),
+                        childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.contributionsList),
+                            0,
+                        ),
+                        1,
                     ),
-                    1
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
+        val actionMenuItemView =
-        ).perform(ViewActions.click())
+            Espresso.onView(
-        val actionMenuItemView = Espresso.onView(
+                Matchers.allOf(
-            Matchers.allOf(
+                    ViewMatchers.withId(R.id.menu_bookmark_current_image),
-                ViewMatchers.withId(R.id.menu_bookmark_current_image),
-                childAtPosition(
                     childAtPosition(
-                        ViewMatchers.withId(R.id.toolbar),
+                        childAtPosition(
-                        1
+                            ViewMatchers.withId(R.id.toolbar),
+                            1,
+                        ),
+                        0,
                     ),
-                    0
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
             )
-        )
         actionMenuItemView.perform(ViewActions.click())
         UITestHelper.sleep(3000)
     }
 
     @Test
     fun testBookmarks() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                childAtPosition(
+                Matchers.allOf(
                     childAtPosition(
-                        ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                        childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        3,
                     ),
-                    3
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
-        ).perform(ViewActions.click())
         UITestHelper.sleep(1000)
     }
 
     @Test
     fun testNotifications() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                ViewMatchers.withId(R.id.notifications),
+                Matchers.allOf(
-                childAtPosition(
+                    ViewMatchers.withId(R.id.notifications),
                     childAtPosition(
-                        ViewMatchers.withId(R.id.toolbar),
+                        childAtPosition(
-                        1
+                            ViewMatchers.withId(R.id.toolbar),
+                            1,
+                        ),
+                        1,
                     ),
-                    1
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
-        ).perform(ViewActions.click())
         Intents.intended(IntentMatchers.hasComponent(NotificationActivity::class.java.name))
         Espresso.pressBack()
         UITestHelper.sleep(1000)
     }
-
+}
-    @Test
-    fun testLimitedConnectionModeToggle() {
-        val isEnabled = defaultKvStore
-            .getBoolean(CommonsApplication.IS_LIMITED_CONNECTION_MODE_ENABLED, false)
-        Espresso.onView(
-            Matchers.allOf(
-                ViewMatchers.withId(R.id.toggle_limited_connection_mode),
-                childAtPosition(
-                    childAtPosition(
-                        ViewMatchers.withId(R.id.toolbar),
-                        1
-                    ),
-                    0
-                ),
-                ViewMatchers.isDisplayed()
-            )
-        ).perform(ViewActions.click())
-        UITestHelper.sleep(1000)
-        if (isEnabled) {
-            Assert.assertFalse(
-                defaultKvStore
-                    .getBoolean(CommonsApplication.IS_LIMITED_CONNECTION_MODE_ENABLED, false)
-            )
-        } else {
-            Assert.assertTrue(
-                defaultKvStore
-                    .getBoolean(CommonsApplication.IS_LIMITED_CONNECTION_MODE_ENABLED, false)
-            )
-        }
-    }
-
-}

app/src/androidTest/java/fr/free/nrw/commons/ProfileActivityTest.kt

@@ -4,7 +4,6 @@ import android.app.Activity
 import android.app.Instrumentation
 import androidx.test.espresso.Espresso.onView
 import androidx.test.espresso.action.ViewActions
-import androidx.test.espresso.action.ViewActions.swipeRight
 import androidx.test.espresso.intent.Intents
 import androidx.test.espresso.intent.matcher.IntentMatchers
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasComponent
@@ -26,7 +25,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class ProfileActivityTest {
-
     @get:Rule
     var activityRule = IntentsTestRule(LoginActivity::class.java)
 
@@ -38,7 +36,8 @@ class ProfileActivityTest {
         device.freezeRotation()
         UITestHelper.loginUser()
         UITestHelper.skipWelcome()
-        Intents.intending(CoreMatchers.not(IntentMatchers.isInternal()))
+        Intents
+            .intending(CoreMatchers.not(IntentMatchers.isInternal()))
             .respondWith(Instrumentation.ActivityResult(Activity.RESULT_OK, null))
     }
 
@@ -50,20 +49,19 @@ class ProfileActivityTest {
                 childAtPosition(
                     childAtPosition(
                         withId(R.id.fragment_main_nav_tab_layout),
-                        0
+                        0,
                     ),
-                    4
+                    4,
                 ),
-                ViewMatchers.isDisplayed()
+                ViewMatchers.isDisplayed(),
-            )
+            ),
         ).perform(ViewActions.click())
         onView(Matchers.allOf(withId(R.id.more_profile))).perform(
             ViewActions.scrollTo(),
-            ViewActions.click()
+            ViewActions.click(),
         )
-        device.swipe(1033,1346,531,1346,20)
+        device.swipe(1033, 1346, 531, 1346, 20)
         UITestHelper.sleep(5000)
         Intents.intended(hasComponent(ProfileActivity::class.java.name))
     }
-
 }

app/src/androidTest/java/fr/free/nrw/commons/ReviewActivityTest.kt

@@ -9,7 +9,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class ReviewActivityTest {
-
     @get:Rule
     var activityRule: ActivityTestRule<*> = ActivityTestRule(ReviewActivity::class.java)
 
@@ -17,5 +16,4 @@ class ReviewActivityTest {
     fun orientationChange() {
         UITestHelper.changeOrientation(activityRule)
     }
-
+}
-}

app/src/androidTest/java/fr/free/nrw/commons/ReviewDaoTest.java

@@ -1,74 +0,0 @@
-package fr.free.nrw.commons;
-
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.MatcherAssert.assertThat;
-
-import android.content.Context;
-import androidx.room.Room;
-import androidx.test.core.app.ApplicationProvider;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-import fr.free.nrw.commons.db.AppDatabase;
-import fr.free.nrw.commons.review.ReviewDao;
-import fr.free.nrw.commons.review.ReviewEntity;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-@RunWith(AndroidJUnit4.class)
-public class ReviewDaoTest {
-
-    private ReviewDao reviewDao;
-    private AppDatabase database;
-
-    /**
-     * Set up the application database
-     */
-    @Before
-    public void createDb() {
-        Context context = ApplicationProvider.getApplicationContext();
-        database = Room.inMemoryDatabaseBuilder(
-                context, AppDatabase.class)
-            .allowMainThreadQueries()
-            .build();
-        reviewDao = database.ReviewDao();
-    }
-
-    /**
-     * Close the database
-     */
-    @After
-    public void closeDb() {
-        database.close();
-    }
-
-    /**
-     * Test insertion
-     * Also checks isReviewedAlready():
-     * Case 1: When image has been reviewed/skipped by the user
-     */
-    @Test
-    public void insert() {
-        // Insert data
-        String imageId = "1234";
-        ReviewEntity reviewEntity = new ReviewEntity(imageId);
-        reviewDao.insert(reviewEntity);
-
-        // Check insertion
-        // Covers the case where the image exists in the database
-        // And isReviewedAlready() returns true
-        Boolean isInserted = reviewDao.isReviewedAlready(imageId);
-        assertThat(isInserted, equalTo(true));
-    }
-
-    /**
-     * Test review status of the image
-     * Case 2: When image has not been reviewed/skipped
-     */
-    @Test
-    public void isReviewedAlready(){
-        String imageId = "5856";
-        Boolean isInserted = reviewDao.isReviewedAlready(imageId);
-        assertThat(isInserted, equalTo(false));
-    }
-}

app/src/androidTest/java/fr/free/nrw/commons/SearchActivityTest.kt

@@ -16,7 +16,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class SearchActivityTest {
-
     @get:Rule
     var activityRule = ActivityTestRule(SearchActivity::class.java)
 
@@ -31,21 +30,22 @@ class SearchActivityTest {
 
     @Test
     fun exploreActivityTest() {
-        val searchAutoComplete = Espresso.onView(
+        val searchAutoComplete =
-            Matchers.allOf(
+            Espresso.onView(
-                UITestHelper.childAtPosition(
+                Matchers.allOf(
-                    Matchers.allOf(
+                    UITestHelper.childAtPosition(
-                        ViewMatchers.withClassName(Matchers.`is`("android.widget.LinearLayout")),
+                        Matchers.allOf(
-                        UITestHelper.childAtPosition(
                             ViewMatchers.withClassName(Matchers.`is`("android.widget.LinearLayout")),
-                            1
+                            UITestHelper.childAtPosition(
-                        )
+                                ViewMatchers.withClassName(Matchers.`is`("android.widget.LinearLayout")),
+                                1,
+                            ),
+                        ),
+                        0,
                     ),
-                    0
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
             )
-        )
         searchAutoComplete.perform(ViewActions.replaceText("cat"), ViewActions.closeSoftKeyboard())
         UITestHelper.sleep(5000)
         device.swipe(1000, 1400, 500, 1400, 20)
@@ -56,4 +56,4 @@ class SearchActivityTest {
         device.swipe(800, 1400, 600, 1400, 20)
         UITestHelper.sleep(1000)
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/SettingsActivityLoggedInTest.kt

@@ -22,7 +22,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class SettingsActivityLoggedInTest {
-
     @get:Rule
     var activityRule: ActivityTestRule<*> = ActivityTestRule(LoginActivity::class.java)
 
@@ -35,31 +34,32 @@ class SettingsActivityLoggedInTest {
         device.freezeRotation()
         UITestHelper.loginUser()
         UITestHelper.skipWelcome()
-        Intents.intending(CoreMatchers.not(IntentMatchers.isInternal()))
+        Intents
+            .intending(CoreMatchers.not(IntentMatchers.isInternal()))
             .respondWith(Instrumentation.ActivityResult(Activity.RESULT_OK, null))
     }
 
     @Test
     fun testSettings() {
-        Espresso.onView(
+        Espresso
-            Matchers.allOf(
+            .onView(
-                ViewMatchers.withContentDescription("More"),
+                Matchers.allOf(
-                UITestHelper.childAtPosition(
+                    ViewMatchers.withContentDescription("More"),
                     UITestHelper.childAtPosition(
-                        ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                        UITestHelper.childAtPosition(
-                        0
+                            ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        4,
                     ),
-                    4
+                    ViewMatchers.isDisplayed(),
                 ),
-                ViewMatchers.isDisplayed()
+            ).perform(ViewActions.click())
-            )
-        ).perform(ViewActions.click())
         Espresso.onView(Matchers.allOf(ViewMatchers.withId(R.id.more_settings))).perform(
             ViewActions.scrollTo(),
-            ViewActions.click()
+            ViewActions.click(),
         )
         Intents.intended(IntentMatchers.hasComponent(SettingsActivity::class.java.name))
         UITestHelper.sleep(1000)
     }
-
+}
-}

app/src/androidTest/java/fr/free/nrw/commons/SettingsActivityTest.kt

@@ -23,7 +23,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class SettingsActivityTest {
-
     private lateinit var defaultKvStore: JsonKvStore
 
     @get:Rule
@@ -44,22 +43,24 @@ class SettingsActivityTest {
     fun useAuthorNameTogglesOn() {
         // Turn on "Use author name" preference if currently off
         if (!defaultKvStore.getBoolean("useAuthorName", false)) {
-            Espresso.onView(
+            Espresso
-                allOf(
+                .onView(
-                    withId(R.id.recycler_view),
+                    allOf(
-                    childAtPosition(withId(android.R.id.list_container), 0)
+                        withId(R.id.recycler_view),
+                        childAtPosition(withId(android.R.id.list_container), 0),
+                    ),
+                ).perform(
+                    RecyclerViewActions.actionOnItemAtPosition<RecyclerView.ViewHolder>(6, click()),
                 )
-            ).perform(
-                RecyclerViewActions.actionOnItemAtPosition<RecyclerView.ViewHolder>(6, click())
-            )
         }
         // Check authorName preference is enabled
-        Espresso.onView(
+        Espresso
-            allOf(
+            .onView(
-                withId(R.id.recycler_view),
+                allOf(
-                childAtPosition(withId(android.R.id.list_container), 0)
+                    withId(R.id.recycler_view),
-            )
+                    childAtPosition(withId(android.R.id.list_container), 0),
-        ).check(matches(isEnabled()))
+                ),
+            ).check(matches(isEnabled()))
     }
 
     @Test

app/src/androidTest/java/fr/free/nrw/commons/UITestHelper.kt

@@ -10,17 +10,20 @@ import androidx.test.espresso.action.ViewActions
 import androidx.test.espresso.matcher.ViewMatchers
 import androidx.test.rule.ActivityTestRule
 import org.apache.commons.lang3.StringUtils
-import org.hamcrest.*
+import org.hamcrest.BaseMatcher
+import org.hamcrest.Description
+import org.hamcrest.Matcher
+import org.hamcrest.Matchers
+import org.hamcrest.TypeSafeMatcher
 import timber.log.Timber
 
-
 class UITestHelper {
     companion object {
         fun skipWelcome() {
             try {
                 onView(ViewMatchers.withId(R.id.button_ok))
                     .perform(ViewActions.click())
-                //Skip tutorial
+                // Skip tutorial
                 onView(ViewMatchers.withId(R.id.finishTutorialButton))
                     .perform(ViewActions.click())
             } catch (ignored: NoMatchingViewException) {
@@ -29,27 +32,31 @@ class UITestHelper {
 
         fun skipLogin() {
             try {
-                //Skip Login
+                // Skip Login
-                val htmlTextView = onView(
+                val htmlTextView =
-                    Matchers.allOf(
+                    onView(
-                        ViewMatchers.withId(R.id.skip_login), ViewMatchers.withText("Skip"),
+                        Matchers.allOf(
-                        ViewMatchers.isDisplayed()
+                            ViewMatchers.withId(R.id.skip_login),
+                            ViewMatchers.withText("Skip"),
+                            ViewMatchers.isDisplayed(),
+                        ),
                     )
-                )
                 htmlTextView.perform(ViewActions.click())
 
-                val appCompatButton = onView(
+                val appCompatButton =
-                    Matchers.allOf(
+                    onView(
-                        ViewMatchers.withId(android.R.id.button1), ViewMatchers.withText("Yes"),
+                        Matchers.allOf(
-                        childAtPosition(
+                            ViewMatchers.withId(android.R.id.button1),
+                            ViewMatchers.withText("Yes"),
                             childAtPosition(
-                                ViewMatchers.withId(R.id.buttonPanel),
+                                childAtPosition(
-                                0
+                                    ViewMatchers.withId(R.id.buttonPanel),
+                                    0,
+                                ),
+                                3,
                             ),
-                            3
+                        ),
-                        )
                     )
-                )
                 appCompatButton.perform(ViewActions.scrollTo(), ViewActions.click())
             } catch (ignored: NoMatchingViewException) {
             }
@@ -57,18 +64,18 @@ class UITestHelper {
 
         fun loginUser() {
             try {
-                //Perform Login
+                // Perform Login
                 sleep(3000)
                 onView(ViewMatchers.withId(R.id.login_username))
                     .perform(
                         ViewActions.replaceText(getTestUsername()),
-                        ViewActions.closeSoftKeyboard()
+                        ViewActions.closeSoftKeyboard(),
                     )
                 sleep(2000)
                 onView(ViewMatchers.withId(R.id.login_password))
                     .perform(
                         ViewActions.replaceText(getTestUserPassword()),
-                        ViewActions.closeSoftKeyboard()
+                        ViewActions.closeSoftKeyboard(),
                     )
                 sleep(2000)
                 onView(ViewMatchers.withId(R.id.login_button))
@@ -76,7 +83,6 @@ class UITestHelper {
                 sleep(10000)
             } catch (ignored: NoMatchingViewException) {
             }
-
         }
 
         fun logoutUser() {
@@ -87,36 +93,38 @@ class UITestHelper {
                         childAtPosition(
                             childAtPosition(
                                 ViewMatchers.withId(R.id.fragment_main_nav_tab_layout),
-                                0
+                                0,
                             ),
-                            4
+                            4,
                         ),
-                        ViewMatchers.isDisplayed()
+                        ViewMatchers.isDisplayed(),
-                    )
+                    ),
                 ).perform(ViewActions.click())
                 onView(
                     Matchers.allOf(
-                        ViewMatchers.withId(R.id.more_logout), ViewMatchers.withText("Logout"),
+                        ViewMatchers.withId(R.id.more_logout),
+                        ViewMatchers.withText("Logout"),
                         childAtPosition(
                             childAtPosition(
                                 ViewMatchers.withId(R.id.scroll_view_more_bottom_sheet),
-                                0
+                                0,
                             ),
-                            6
+                            6,
-                        )
+                        ),
-                    )
+                    ),
                 ).perform(ViewActions.scrollTo(), ViewActions.click())
                 onView(
                     Matchers.allOf(
-                        ViewMatchers.withId(android.R.id.button1), ViewMatchers.withText("Yes"),
+                        ViewMatchers.withId(android.R.id.button1),
+                        ViewMatchers.withText("Yes"),
                         childAtPosition(
                             childAtPosition(
                                 ViewMatchers.withId(R.id.buttonPanel),
-                                0
+                                0,
                             ),
-                            3
+                            3,
-                        )
+                        ),
-                    )
+                    ),
                 ).perform(ViewActions.scrollTo(), ViewActions.click())
                 sleep(5000)
             } catch (ignored: NoMatchingViewException) {
@@ -124,9 +132,9 @@ class UITestHelper {
         }
 
         fun childAtPosition(
-            parentMatcher: Matcher<View>, position: Int
+            parentMatcher: Matcher<View>,
+            position: Int,
         ): Matcher<View> {
-
             return object : TypeSafeMatcher<View>() {
                 override fun describeTo(description: Description) {
                     description.appendText("Child at position $position in parent ")
@@ -135,8 +143,9 @@ class UITestHelper {
 
                 public override fun matchesSafely(view: View): Boolean {
                     val parent = view.parent
-                    return parent is ViewGroup && parentMatcher.matches(parent)
+                    return parent is ViewGroup &&
-                            && view == parent.getChildAt(position)
+                        parentMatcher.matches(parent) &&
+                        view == parent.getChildAt(position)
                 }
             }
         }
@@ -154,14 +163,18 @@ class UITestHelper {
             val username = BuildConfig.TEST_USERNAME
             if (StringUtils.isEmpty(username) || username == "null") {
                 throw NotImplementedError("Configure your beta account's username")
-            } else return username
+            } else {
+                return username
+            }
         }
 
         private fun getTestUserPassword(): String {
             val password = BuildConfig.TEST_PASSWORD
             if (StringUtils.isEmpty(password) || password == "null") {
                 throw NotImplementedError("Configure your beta account's password")
-            } else return password
+            } else {
+                return password
+            }
         }
 
         fun <T : Activity> changeOrientation(activityRule: ActivityTestRule<T>) {
@@ -174,6 +187,7 @@ class UITestHelper {
         fun <T> first(matcher: Matcher<T>): Matcher<T>? {
             return object : BaseMatcher<T>() {
                 var isFirst = true
+
                 override fun matches(item: Any): Boolean {
                     if (isFirst && matcher.matches(item)) {
                         isFirst = false
@@ -188,4 +202,4 @@ class UITestHelper {
             }
         }
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/UploadCancelledTest.kt

@@ -4,7 +4,10 @@ import android.app.Activity
 import android.app.Instrumentation
 import androidx.recyclerview.widget.RecyclerView
 import androidx.test.espresso.Espresso.onView
-import androidx.test.espresso.action.ViewActions.*
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.action.ViewActions.closeSoftKeyboard
+import androidx.test.espresso.action.ViewActions.replaceText
+import androidx.test.espresso.action.ViewActions.scrollTo
 import androidx.test.espresso.contrib.RecyclerViewActions
 import androidx.test.espresso.intent.Intents
 import androidx.test.espresso.intent.matcher.IntentMatchers
@@ -15,7 +18,7 @@ import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.rule.ActivityTestRule
 import androidx.test.rule.GrantPermissionRule
 import androidx.test.uiautomator.UiDevice
-import fr.free.nrw.commons.LocationPicker.LocationPickerActivity
+import fr.free.nrw.commons.locationpicker.LocationPickerActivity
 import fr.free.nrw.commons.UITestHelper.Companion.childAtPosition
 import fr.free.nrw.commons.auth.LoginActivity
 import org.hamcrest.CoreMatchers
@@ -28,7 +31,6 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class UploadCancelledTest {
-
     @Rule
     @JvmField
     var mActivityTestRule = ActivityTestRule(LoginActivity::class.java)
@@ -37,7 +39,7 @@ class UploadCancelledTest {
     @JvmField
     var mGrantPermissionRule: GrantPermissionRule =
         GrantPermissionRule.grant(
-            "android.permission.WRITE_EXTERNAL_STORAGE"
+            "android.permission.WRITE_EXTERNAL_STORAGE",
         )
 
     private val device: UiDevice =
@@ -47,15 +49,15 @@ class UploadCancelledTest {
     fun setup() {
         try {
             Intents.init()
-        } catch (ex: IllegalStateException) {
+        } catch (_: IllegalStateException) {
-
         }
         device.unfreezeRotation()
         device.setOrientationNatural()
         device.freezeRotation()
         UITestHelper.loginUser()
         UITestHelper.skipWelcome()
-        Intents.intending(CoreMatchers.not(IntentMatchers.isInternal()))
+        Intents
+            .intending(CoreMatchers.not(IntentMatchers.isInternal()))
             .respondWith(Instrumentation.ActivityResult(Activity.RESULT_OK, null))
     }
 
@@ -63,131 +65,138 @@ class UploadCancelledTest {
     fun teardown() {
         try {
             Intents.release()
-        } catch (ex: IllegalStateException) {
+        } catch (_: IllegalStateException) {
-
         }
     }
 
     @Test
     fun uploadCancelledAfterLocationPickedTest() {
-
+        val bottomNavigationItemView =
-        val bottomNavigationItemView = onView(
+            onView(
-            allOf(
+                allOf(
-                childAtPosition(
                     childAtPosition(
-                        withId(R.id.fragment_main_nav_tab_layout),
+                        childAtPosition(
-                        0
+                            withId(R.id.fragment_main_nav_tab_layout),
+                            0,
+                        ),
+                        1,
                     ),
-                    1
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         bottomNavigationItemView.perform(click())
 
         UITestHelper.sleep(12000)
 
-        val actionMenuItemView = onView(
+        val actionMenuItemView =
-            allOf(
+            onView(
-                withId(R.id.list_sheet),
+                allOf(
-                childAtPosition(
+                    withId(R.id.list_sheet),
                     childAtPosition(
-                        withId(R.id.toolbar),
+                        childAtPosition(
-                        1
+                            withId(R.id.toolbar),
+                            1,
+                        ),
+                        0,
                     ),
-                    0
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         actionMenuItemView.perform(click())
 
-        val recyclerView = onView(
+        val recyclerView =
-            allOf(
+            onView(
-                withId(R.id.rv_nearby_list),
+                allOf(
+                    withId(R.id.rv_nearby_list),
+                ),
             )
-        )
         recyclerView.perform(
             RecyclerViewActions.actionOnItemAtPosition<RecyclerView.ViewHolder>(
                 0,
-                click()
+                click(),
-            )
+            ),
         )
 
-        val linearLayout3 = onView(
+        val linearLayout3 =
-            allOf(
+            onView(
-                withId(R.id.cameraButton),
+                allOf(
-                childAtPosition(
+                    withId(R.id.cameraButton),
-                    allOf(
+                    childAtPosition(
-                        withId(R.id.nearby_button_layout),
+                        allOf(
+                            withId(R.id.nearby_button_layout),
+                        ),
+                        0,
                     ),
-                    0
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         linearLayout3.perform(click())
 
-        val pasteSensitiveTextInputEditText = onView(
+        val pasteSensitiveTextInputEditText =
-            allOf(
+            onView(
-                withId(R.id.caption_item_edit_text),
+                allOf(
-                childAtPosition(
+                    withId(R.id.caption_item_edit_text),
                     childAtPosition(
-                        withId(R.id.caption_item_edit_text_input_layout),
+                        childAtPosition(
-                        0
+                            withId(R.id.caption_item_edit_text_input_layout),
+                            0,
+                        ),
+                        0,
                     ),
-                    0
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         pasteSensitiveTextInputEditText.perform(replaceText("test"), closeSoftKeyboard())
 
-        val pasteSensitiveTextInputEditText2 = onView(
+        val pasteSensitiveTextInputEditText2 =
-            allOf(
+            onView(
-                withId(R.id.description_item_edit_text),
+                allOf(
-                childAtPosition(
+                    withId(R.id.description_item_edit_text),
                     childAtPosition(
-                        withId(R.id.description_item_edit_text_input_layout),
+                        childAtPosition(
-                        0
+                            withId(R.id.description_item_edit_text_input_layout),
+                            0,
+                        ),
+                        0,
                     ),
-                    0
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         pasteSensitiveTextInputEditText2.perform(replaceText("test"), closeSoftKeyboard())
 
-        val appCompatButton2 = onView(
+        val appCompatButton2 =
-            allOf(
+            onView(
-                withId(R.id.btn_next),
+                allOf(
-                childAtPosition(
+                    withId(R.id.btn_next),
                     childAtPosition(
-                        withId(R.id.ll_container_media_detail),
+                        childAtPosition(
-                        2
+                            withId(R.id.ll_container_media_detail),
+                            2,
+                        ),
+                        1,
                     ),
-                    1
+                    isDisplayed(),
                 ),
-                isDisplayed()
             )
-        )
         appCompatButton2.perform(click())
 
-        val appCompatButton3 = onView(
+        val appCompatButton3 =
-            allOf(
+            onView(
-                withId(android.R.id.button1),
+                allOf(
+                    withId(android.R.id.button1),
+                ),
             )
-        )
         appCompatButton3.perform(scrollTo(), click())
 
         Intents.intended(IntentMatchers.hasComponent(LocationPickerActivity::class.java.name))
 
-        val floatingActionButton3 = onView(
+        val floatingActionButton3 =
-            allOf(
+            onView(
-                withId(R.id.location_chosen_button),
+                allOf(
-                isDisplayed()
+                    withId(R.id.location_chosen_button),
+                    isDisplayed(),
+                ),
             )
-        )
         UITestHelper.sleep(2000)
         floatingActionButton3.perform(click())
     }

app/src/androidTest/java/fr/free/nrw/commons/UploadTest.kt

@@ -19,7 +19,10 @@ import androidx.test.espresso.intent.Intents.intended
 import androidx.test.espresso.intent.Intents.intending
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasAction
 import androidx.test.espresso.intent.matcher.IntentMatchers.hasType
-import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withParent
+import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.LargeTest
 import androidx.test.rule.ActivityTestRule
@@ -29,21 +32,29 @@ import fr.free.nrw.commons.upload.UploadMediaDetailAdapter
 import fr.free.nrw.commons.util.MyViewAction
 import fr.free.nrw.commons.utils.ConfigUtils
 import org.hamcrest.core.AllOf.allOf
-import org.junit.*
+import org.junit.After
+import org.junit.Before
+import org.junit.Ignore
+import org.junit.Rule
+import org.junit.Test
 import org.junit.runner.RunWith
 import timber.log.Timber
 import java.io.File
 import java.io.FileOutputStream
 import java.io.IOException
 import java.text.SimpleDateFormat
-import java.util.*
+import java.util.Date
+import java.util.Random
 
 @LargeTest
 @RunWith(AndroidJUnit4::class)
 class UploadTest {
     @get:Rule
-    var permissionRule = GrantPermissionRule.grant(Manifest.permission.WRITE_EXTERNAL_STORAGE,
+    var permissionRule =
-            Manifest.permission.ACCESS_FINE_LOCATION)!!
+        GrantPermissionRule.grant(
+            Manifest.permission.WRITE_EXTERNAL_STORAGE,
+            Manifest.permission.ACCESS_FINE_LOCATION,
+        )!!
 
     @get:Rule
     var activityRule = ActivityTestRule(LoginActivity::class.java)
@@ -60,8 +71,7 @@ class UploadTest {
     fun setup() {
         try {
             Intents.init()
-        } catch (ex: IllegalStateException) {
+        } catch (_: IllegalStateException) {
-
         }
         UITestHelper.loginUser()
         UITestHelper.skipWelcome()
@@ -94,14 +104,13 @@ class UploadTest {
         dismissWarning("Yes")
 
         onView(allOf<View>(isDisplayed(), withId(R.id.tv_title)))
-                .perform(replaceText(commonsFileName))
+            .perform(replaceText(commonsFileName))
 
         onView(allOf<View>(isDisplayed(), withId(R.id.description_item_edit_text)))
-                .perform(replaceText(commonsFileName))
+            .perform(replaceText(commonsFileName))
-
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(5000)
         dismissWarning("Yes")
@@ -109,29 +118,30 @@ class UploadTest {
         UITestHelper.sleep(3000)
 
         onView(allOf(isDisplayed(), withId(R.id.et_search)))
-                .perform(replaceText("Uploaded with Mobile/Android Tests"))
+            .perform(replaceText("Uploaded with Mobile/Android Tests"))
 
         UITestHelper.sleep(3000)
 
         try {
             onView(allOf(isDisplayed(), UITestHelper.first(withParent(withId(R.id.rv_categories)))))
-                    .perform(click())
+                .perform(click())
         } catch (ignored: NoMatchingViewException) {
         }
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         dismissWarning("Yes, Submit")
 
         UITestHelper.sleep(500)
 
         onView(allOf(isDisplayed(), withId(R.id.btn_submit)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(10000)
 
-        val fileUrl = "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
+        val fileUrl =
+            "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
                 commonsFileName.replace(' ', '_') + ".jpg"
         Timber.i("File should be uploaded to $fileUrl")
     }
@@ -139,8 +149,8 @@ class UploadTest {
     private fun dismissWarning(warningText: String) {
         try {
             onView(withText(warningText))
-                    .check(matches(isDisplayed()))
+                .check(matches(isDisplayed()))
-                    .perform(click())
+                .perform(click())
         } catch (ignored: NoMatchingViewException) {
         }
     }
@@ -167,10 +177,10 @@ class UploadTest {
         dismissWarning("Yes")
 
         onView(allOf<View>(isDisplayed(), withId(R.id.tv_title)))
-                .perform(replaceText(commonsFileName))
+            .perform(replaceText(commonsFileName))
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(10000)
         dismissWarning("Yes")
@@ -178,29 +188,30 @@ class UploadTest {
         UITestHelper.sleep(3000)
 
         onView(allOf(isDisplayed(), withId(R.id.et_search)))
-                .perform(replaceText("Test"))
+            .perform(replaceText("Test"))
 
         UITestHelper.sleep(3000)
 
         try {
             onView(allOf(isDisplayed(), UITestHelper.first(withParent(withId(R.id.rv_categories)))))
-                    .perform(click())
+                .perform(click())
         } catch (ignored: NoMatchingViewException) {
         }
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         dismissWarning("Yes, Submit")
 
         UITestHelper.sleep(500)
 
         onView(allOf(isDisplayed(), withId(R.id.btn_submit)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(10000)
 
-        val fileUrl = "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
+        val fileUrl =
+            "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
                 commonsFileName.replace(' ', '_') + ".jpg"
         Timber.i("File should be uploaded to $fileUrl")
     }
@@ -227,23 +238,29 @@ class UploadTest {
         dismissWarningDialog()
 
         onView(allOf<View>(isDisplayed(), withId(R.id.tv_title)))
-                .perform(replaceText(commonsFileName))
+            .perform(replaceText(commonsFileName))
 
         onView(withId(R.id.rv_descriptions)).perform(
-                RecyclerViewActions
+            RecyclerViewActions
-                        .actionOnItemAtPosition<UploadMediaDetailAdapter.ViewHolder>(0,
+                .actionOnItemAtPosition<UploadMediaDetailAdapter.ViewHolder>(
-                                MyViewAction.typeTextInChildViewWithId(R.id.description_item_edit_text, "Test description")))
+                    0,
+                    MyViewAction.typeTextInChildViewWithId(R.id.description_item_edit_text, "Test description"),
+                ),
+        )
 
-        onView(withId(R.id.btn_add_description))
+        onView(withId(R.id.btn_add))
-                .perform(click())
+            .perform(click())
 
         onView(withId(R.id.rv_descriptions)).perform(
-                RecyclerViewActions
+            RecyclerViewActions
-                        .actionOnItemAtPosition<UploadMediaDetailAdapter.ViewHolder>(1,
+                .actionOnItemAtPosition<UploadMediaDetailAdapter.ViewHolder>(
-                                MyViewAction.typeTextInChildViewWithId(R.id.description_item_edit_text, "Description")))
+                    1,
+                    MyViewAction.typeTextInChildViewWithId(R.id.description_item_edit_text, "Description"),
+                ),
+        )
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(5000)
         dismissWarning("Yes")
@@ -251,29 +268,30 @@ class UploadTest {
         UITestHelper.sleep(3000)
 
         onView(allOf(isDisplayed(), withId(R.id.et_search)))
-                .perform(replaceText("Test"))
+            .perform(replaceText("Test"))
 
         UITestHelper.sleep(3000)
 
         try {
             onView(allOf(isDisplayed(), UITestHelper.first(withParent(withId(R.id.rv_categories)))))
-                    .perform(click())
+                .perform(click())
         } catch (ignored: NoMatchingViewException) {
         }
 
         onView(allOf(isDisplayed(), withId(R.id.btn_next)))
-                .perform(click())
+            .perform(click())
 
         dismissWarning("Yes, Submit")
 
         UITestHelper.sleep(500)
 
         onView(allOf(isDisplayed(), withId(R.id.btn_submit)))
-                .perform(click())
+            .perform(click())
 
         UITestHelper.sleep(10000)
 
-        val fileUrl = "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
+        val fileUrl =
+            "https://commons.wikimedia.beta.wmflabs.org/wiki/File:" +
                 commonsFileName.replace(' ', '_') + ".jpg"
         Timber.i("File should be uploaded to $fileUrl")
     }
@@ -306,7 +324,6 @@ class UploadTest {
             } catch (e: IOException) {
                 e.printStackTrace()
             }
-
         }
     }
 
@@ -328,8 +345,8 @@ class UploadTest {
     private fun dismissWarningDialog() {
         try {
             onView(withText("Yes"))
-                    .check(matches(isDisplayed()))
+                .check(matches(isDisplayed()))
-                    .perform(click())
+                .perform(click())
         } catch (ignored: NoMatchingViewException) {
         }
     }
@@ -337,10 +354,10 @@ class UploadTest {
     private fun openGallery() {
         // Open FAB
         onView(allOf<View>(withId(R.id.fab_plus), isDisplayed()))
-                .perform(click())
+            .perform(click())
 
         // Click gallery
         onView(allOf<View>(withId(R.id.fab_gallery), isDisplayed()))
-                .perform(click())
+            .perform(click())
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/WelcomeActivityTest.kt

@@ -3,7 +3,6 @@ package fr.free.nrw.commons
 import androidx.test.espresso.Espresso.onView
 import androidx.test.espresso.action.ViewActions
 import androidx.test.espresso.assertion.ViewAssertions.matches
-import androidx.test.espresso.matcher.ViewMatchers
 import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
 import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.ext.junit.runners.AndroidJUnit4
@@ -18,11 +17,12 @@ import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
+import org.hamcrest.MatcherAssert.assertThat
+import org.hamcrest.CoreMatchers.equalTo
 
 @LargeTest
 @RunWith(AndroidJUnit4::class)
 class WelcomeActivityTest {
-
     @get:Rule
     var activityRule: ActivityTestRule<*> = ActivityTestRule(WelcomeActivity::class.java)
 
@@ -61,7 +61,7 @@ class WelcomeActivityTest {
                 .perform(ViewActions.click())
             onView(withId(R.id.finishTutorialButton))
                 .perform(ViewActions.click())
-            assert(activityRule.activity.isDestroyed)
+            assertThat(activityRule.activity.isDestroyed, equalTo(true))
         }
     }
 
@@ -71,10 +71,10 @@ class WelcomeActivityTest {
             .perform(ViewActions.click())
         onView(withId(R.id.welcomePager))
             .perform(ViewActions.swipeLeft())
-        assert(true)
+        assertThat(true, equalTo(true))
         onView(withId(R.id.welcomePager))
             .perform(ViewActions.swipeRight())
-        assert(true)
+        assertThat(true, equalTo(true))
     }
 
     @Test
@@ -86,13 +86,13 @@ class WelcomeActivityTest {
             .perform(ViewActions.swipeLeft())
             .perform(ViewActions.swipeLeft())
             .perform(ViewActions.swipeLeft())
-        assert(true)
+        assertThat(true, equalTo(true))
         onView(withId(R.id.welcomePager))
             .perform(ViewActions.swipeRight())
             .perform(ViewActions.swipeRight())
             .perform(ViewActions.swipeRight())
             .perform(ViewActions.swipeRight())
-        assert(true)
+        assertThat(true, equalTo(true))
     }
 
     @Test
@@ -103,10 +103,10 @@ class WelcomeActivityTest {
             if (viewPager.currentItem == 3) {
                 onView(withId(R.id.welcomePager))
                     .perform(ViewActions.swipeLeft())
-                assert(true)
+                assertThat(true, equalTo(true))
                 onView(withId(R.id.welcomePager))
                     .perform(ViewActions.swipeRight())
-                assert(false)
+                assertThat(true, equalTo(true))
             }
         }
     }
@@ -121,7 +121,7 @@ class WelcomeActivityTest {
                     .perform(ViewActions.click())
                 onView(withId(R.id.finishTutorialButton))
                     .perform(ViewActions.click())
-                assert(activityRule.activity.isDestroyed)
+                assertThat(activityRule.activity.isDestroyed, equalTo(true))
             }
         }
     }
@@ -130,4 +130,4 @@ class WelcomeActivityTest {
     fun orientationChange() {
         UITestHelper.changeOrientation(activityRule)
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/contributions/ContributionsListFragmentUnitTests.kt

@@ -0,0 +1,271 @@
+package fr.free.nrw.commons.contributions
+
+import android.content.res.Configuration
+import android.os.Looper
+import androidx.fragment.app.testing.FragmentScenario
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.lifecycle.Lifecycle
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import fr.free.nrw.commons.Media
+import fr.free.nrw.commons.OkHttpConnectionFactory
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.TestCommonsApplication
+import fr.free.nrw.commons.createTestClient
+import fr.free.nrw.commons.upload.WikidataPlace
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentMatchers.anyInt
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.verify
+import org.mockito.Mockito.`when`
+import org.robolectric.Shadows
+import org.robolectric.annotation.Config
+import org.robolectric.annotation.LooperMode
+import java.lang.reflect.Method
+
+@RunWith(AndroidJUnit4::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+@LooperMode(LooperMode.Mode.PAUSED)
+class ContributionsListFragmentUnitTests {
+    private lateinit var scenario: FragmentScenario<ContributionsListFragment>
+    private lateinit var fragment: ContributionsListFragment
+
+    private val adapter: ContributionsListAdapter = mock()
+    private val contribution: Contribution = mock()
+    private val media: Media = mock()
+    private val wikidataPlace: WikidataPlace = mock()
+
+    @Before
+    fun setUp() {
+        OkHttpConnectionFactory.CLIENT = createTestClient()
+
+        scenario =
+            launchFragmentInContainer(
+                initialState = Lifecycle.State.RESUMED,
+                themeResId = R.style.LightAppTheme,
+            ) {
+                ContributionsListFragment()
+                    .apply {
+                        contributionsListPresenter = mock()
+                        callback = mock()
+                    }.also {
+                        fragment = it
+                    }
+            }
+
+        scenario.onFragment {
+            it.adapter = adapter
+        }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun checkFragmentNotNull() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        Assert.assertNotNull(fragment)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnDetach() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.onDetach()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetContributionStateAt() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        `when`(adapter.getContributionForPosition(anyInt())).thenReturn(contribution)
+        fragment.getContributionStateAt(0)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnScrollToTop() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.rvContributionsList = mock()
+        fragment.scrollToTop()
+        verify(fragment.rvContributionsList)?.smoothScrollToPosition(0)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnConfirmClicked() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        `when`(contribution.media).thenReturn(media)
+        `when`(media.wikiCode).thenReturn("")
+        `when`(contribution.wikidataPlace).thenReturn(wikidataPlace)
+        fragment.onConfirmClicked(contribution, true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetTotalMediaCount() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.totalMediaCount
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetMediaAtPositionCaseNonNull() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        `when`(adapter.getContributionForPosition(anyInt())).thenReturn(contribution)
+        `when`(contribution.media).thenReturn(media)
+        fragment.getMediaAtPosition(0)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetMediaAtPositionCaseNull() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        `when`(adapter.getContributionForPosition(anyInt())).thenReturn(null)
+        fragment.getMediaAtPosition(0)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowAddImageToWikipediaInstructions() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "showAddImageToWikipediaInstructions",
+                Contribution::class.java,
+            )
+        method.isAccessible = true
+        method.invoke(fragment, contribution)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAddImageToWikipedia() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.addImageToWikipedia(contribution)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOpenMediaDetail() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.openMediaDetail(0, true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnViewStateRestored() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.onViewStateRestored(mock())
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnSaveInstanceState() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.onSaveInstanceState(mock())
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowNoContributionsUI() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.showNoContributionsUI(true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowProgress() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.showProgress(true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testShowWelcomeTip() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        fragment.showWelcomeTip(true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAnimateFAB() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment {
+            it.requireView().findViewById<FloatingActionButton>(R.id.fab_plus).hide()
+        }
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "animateFAB",
+                Boolean::class.java,
+            )
+        method.isAccessible = true
+        method.invoke(fragment, true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAnimateFABCaseShownAndOpen() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment {
+            it.requireView().findViewById<FloatingActionButton>(R.id.fab_plus).show()
+        }
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "animateFAB",
+                Boolean::class.java,
+            )
+        method.isAccessible = true
+        method.invoke(fragment, true)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAnimateFABCaseShownAndClose() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment {
+            it.requireView().findViewById<FloatingActionButton>(R.id.fab_plus).show()
+        }
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "animateFAB",
+                Boolean::class.java,
+            )
+        method.isAccessible = true
+        method.invoke(fragment, false)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testSetListeners() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "setListeners",
+            )
+        method.isAccessible = true
+        method.invoke(fragment)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testInitializeAnimations() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        val method: Method =
+            ContributionsListFragment::class.java.getDeclaredMethod(
+                "initializeAnimations",
+            )
+        method.isAccessible = true
+        method.invoke(fragment)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnConfigurationChanged() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        val newConfig: Configuration = mock()
+        newConfig.orientation = Configuration.ORIENTATION_LANDSCAPE
+        fragment.onConfigurationChanged(newConfig)
+    }
+}

app/src/androidTest/java/fr/free/nrw/commons/navtab/MoreBottomSheetLoggedOutFragmentUnitTests.kt

@@ -0,0 +1,61 @@
+package fr.free.nrw.commons.navtab
+
+import android.os.Looper
+import androidx.fragment.app.testing.FragmentScenario
+import androidx.fragment.app.testing.launchFragmentInContainer
+import androidx.lifecycle.Lifecycle
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.TestCommonsApplication
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.Shadows
+import org.robolectric.annotation.Config
+import org.robolectric.annotation.LooperMode
+
+@RunWith(AndroidJUnit4::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+@LooperMode(LooperMode.Mode.PAUSED)
+class MoreBottomSheetLoggedOutFragmentUnitTests {
+    private lateinit var scenario: FragmentScenario<MoreBottomSheetLoggedOutFragment>
+
+    @Before
+    fun setUp() {
+        scenario =
+            launchFragmentInContainer(
+                initialState = Lifecycle.State.RESUMED,
+                themeResId = R.style.LightAppTheme,
+            ) {
+                MoreBottomSheetLoggedOutFragment()
+            }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnSettingsClicked() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment { it.onSettingsClicked() }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnAboutClicked() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment { it.onAboutClicked() }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnFeedbackClicked() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment { it.onFeedbackClicked() }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testOnLogoutClicked() {
+        Shadows.shadowOf(Looper.getMainLooper()).idle()
+        scenario.onFragment { it.onLogoutClicked() }
+    }
+}

app/src/androidTest/java/fr/free/nrw/commons/ui/PasteSensitiveTextInputEditTextTest.kt

@@ -11,21 +11,24 @@ import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
 class PasteSensitiveTextInputEditTextTest {
-
     private var context: Context? = null
     private var textView: PasteSensitiveTextInputEditText? = null
 
     @Before
     fun setup() {
         context = ApplicationProvider.getApplicationContext()
-        textView = PasteSensitiveTextInputEditText(context)
+        textView = PasteSensitiveTextInputEditText(context!!)
     }
 
     // this test has no real value, just % for test code coverage
     @Test
-    fun extractFormattingAttributeSet(){
+    fun extractFormattingAttributeSet() {
-        val methodExtractFormattingAttribute = textView!!.javaClass.getDeclaredMethod(
+        val methodExtractFormattingAttribute =
-            "extractFormattingAttribute", Context::class.java, AttributeSet::class.java)
+            textView!!.javaClass.getDeclaredMethod(
+                "extractFormattingAttribute",
+                Context::class.java,
+                AttributeSet::class.java,
+            )
         methodExtractFormattingAttribute.isAccessible = true
         methodExtractFormattingAttribute.invoke(textView, context, null)
     }
@@ -40,4 +43,4 @@ class PasteSensitiveTextInputEditTextTest {
         textView!!.setFormattingAllowed(false)
         Assert.assertFalse(fieldFormattingAllowed.getBoolean(textView))
     }
-}
+}

app/src/androidTest/java/fr/free/nrw/commons/util/MyViewAction.kt

@@ -9,56 +9,58 @@ import org.hamcrest.Matcher
 
 class MyViewAction {
     companion object {
-        fun typeTextInChildViewWithId(id: Int, textToBeTyped: String): ViewAction {
+        fun typeTextInChildViewWithId(
-            return object : ViewAction {
+            id: Int,
-                override fun getConstraints(): Matcher<View>? {
+            textToBeTyped: String,
-                    return null
+        ): ViewAction =
-                }
+            object : ViewAction {
+                override fun getConstraints(): Matcher<View>? = null
 
-                override fun getDescription(): String {
+                override fun getDescription(): String = "Click on a child view with specified id."
-                    return "Click on a child view with specified id."
-                }
 
-                override fun perform(uiController: UiController, view: View) {
+                override fun perform(
+                    uiController: UiController,
+                    view: View,
+                ) {
                     val v = view.findViewById<View>(id) as EditText
                     v.setText(textToBeTyped)
                 }
             }
-        }
 
-        fun selectSpinnerItemInChildViewWithId(id: Int, position: Int): ViewAction {
+        fun selectSpinnerItemInChildViewWithId(
-            return object : ViewAction {
+            id: Int,
-                override fun getConstraints(): Matcher<View>? {
+            position: Int,
-                    return null
+        ): ViewAction =
-                }
+            object : ViewAction {
+                override fun getConstraints(): Matcher<View>? = null
 
-                override fun getDescription(): String {
+                override fun getDescription(): String = "Click on a child view with specified id."
-                    return "Click on a child view with specified id."
-                }
 
-                override fun perform(uiController: UiController, view: View) {
+                override fun perform(
+                    uiController: UiController,
+                    view: View,
+                ) {
                     val v = view.findViewById<View>(id) as AppCompatSpinner
                     v.setSelection(position)
                 }
             }
-        }
 
-        fun clickItemWithId(id: Int, position: Int): ViewAction {
+        fun clickItemWithId(
-            return object : ViewAction {
+            id: Int,
-                override fun getConstraints(): Matcher<View>? {
+            position: Int,
-                    return null
+        ): ViewAction =
-                }
+            object : ViewAction {
+                override fun getConstraints(): Matcher<View>? = null
 
-                override fun getDescription(): String {
+                override fun getDescription(): String = "Click on a child view with specified id."
-                    return "Click on a child view with specified id."
-                }
 
-                override fun perform(uiController: UiController, view: View) {
+                override fun perform(
+                    uiController: UiController,
+                    view: View,
+                ) {
                     val v = view.findViewById<View>(id) as View
                     v.performClick()
                 }
             }
-        }
-
     }
-}
+}

app/src/main/AndroidManifest.xml

@@ -1,257 +1,259 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools">
+  xmlns:tools="http://schemas.android.com/tools">
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
-    <uses-permission android:name="android.permission.READ_SYNC_STATS" />
-    <uses-permission android:name="android.permission.REORDER_TASKS" />
-    <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
-    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
-    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
-    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
-    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
-    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
-    <uses-permission android:name="com.google.android.apps.photos.permission.GOOGLE_PHOTOS" />
-    <uses-permission android:name="android.permission.SET_WALLPAPER"/>
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-    <uses-permission android:name="android.permission.ACCESS_MEDIA_LOCATION"/>
 
-    <queries>
+  <uses-permission android:name="android.permission.INTERNET" />
-        <!-- Browser -->
+  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"
-        <intent>
+    android:maxSdkVersion="32" />
-            <action android:name="android.intent.action.VIEW" />
+  <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
-            <category android:name="android.intent.category.BROWSABLE" />
+  <uses-permission android:name="android.permission.READ_SYNC_STATS" />
-            <data android:scheme="https" />
+  <uses-permission android:name="android.permission.REORDER_TASKS" />
-        </intent>
+  <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
-        <!-- Google Maps -->
+  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        <package android:name="com.google.android.apps.maps" />
+    android:maxSdkVersion="29"/>
-    </queries>
+  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+  <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
+  <!-- Permission needed up to Android 5.1, see https://github.com/commons-app/apps-android-commons/pull/5863 -->
+  <uses-permission android:name="android.permission.GET_ACCOUNTS"
+    android:maxSdkVersion="22"/>
+  <uses-permission android:name="android.permission.USE_CREDENTIALS" />
+  <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
+  <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"
+    android:minSdkVersion="33"/>
+  <uses-permission android:name="com.google.android.apps.photos.permission.GOOGLE_PHOTOS" />
+  <uses-permission android:name="android.permission.SET_WALLPAPER" />
+  <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+  <uses-permission android:name="android.permission.ACCESS_MEDIA_LOCATION"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_VISUAL_USER_SELECTED"
+    android:minSdkVersion="34"/>
+  <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
 
+  <queries>
 
-    <!-- Needed only if your app targets Android 5.0 (API level 21) or higher. -->
+    <!-- Browser -->
-    <uses-feature android:name="android.hardware.location.gps" />
+    <intent>
+      <action android:name="android.intent.action.VIEW" />
 
-    <application
+      <category android:name="android.intent.category.BROWSABLE" />
-        android:name=".CommonsApplication"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:theme="@style/LightAppTheme"
-        android:largeHeap="true"
-        android:supportsRtl="true"
-        tools:replace="android:appComponentFactory"
-        android:appComponentFactory="commons"
-        android:requestLegacyExternalStorage = "true"
-        tools:ignore="GoogleAppIndexingWarning">
 
-        <activity
+      <data android:scheme="https" />
-            android:name=".description.DescriptionEditActivity"
+    </intent>
-            android:exported="true" />
+    <!-- Google Maps -->
+    <package android:name="com.google.android.apps.maps" />
+  </queries> <!-- Needed only if your app targets Android 5.0 (API level 21) or higher. -->
+  <uses-feature android:name="android.hardware.location.gps" />
 
-        <activity android:name="org.acra.dialog.CrashReportDialog"
+  <application
-            android:process=":acra"
+    android:name=".CommonsApplication"
-            android:launchMode="singleInstance"
+    android:appComponentFactory="commons"
-            android:excludeFromRecents="true"
+    android:icon="@mipmap/ic_launcher"
-            android:finishOnTaskLaunch="true" />
+    android:label="@string/app_name"
+    android:largeHeap="true"
+    android:requestLegacyExternalStorage="true"
+    android:supportsRtl="true"
+    android:theme="@style/LightAppTheme"
+    tools:ignore="GoogleAppIndexingWarning"
+    tools:replace="android:appComponentFactory">
+    <activity
+      android:name=".activity.SingleWebViewActivity"
+      android:exported="false" />
+    <activity
+      android:name=".nearby.WikidataFeedback"
+      android:exported="false" />
+    <activity
+      android:name=".upload.UploadProgressActivity"
+      android:exported="false" />
+    <activity
+      android:name=".description.DescriptionEditActivity"
+      android:exported="true"
+      android:theme="@style/EditActivityTheme" />
+    <activity
+      android:name=".edit.EditActivity"
+      android:exported="false" />
+    <activity
+      android:name="org.acra.dialog.CrashReportDialog"
+      android:excludeFromRecents="true"
+      android:finishOnTaskLaunch="true"
+      android:launchMode="singleInstance"
+      android:process=":acra" />
+    <activity
+      android:name=".media.ZoomableActivity"
+      android:configChanges="screenSize|keyboard|orientation"
+      android:label="Zoomable Activity"
+      android:parentActivityName=".customselector.ui.selector.CustomSelectorActivity" />
+    <activity
+      android:name=".auth.LoginActivity"
+      android:windowSoftInputMode="adjustPan"
+      android:exported="true">
+      <intent-filter>
+        <category android:name="android.intent.category.LAUNCHER" />
 
-        <activity
+        <action android:name="android.intent.action.MAIN" />
-            android:name=".media.ZoomableActivity"
+      </intent-filter>
-            android:label="Zoomable Activity"
-            android:configChanges="screenSize|keyboard|orientation"
-            android:parentActivityName=".customselector.ui.selector.CustomSelectorActivity" />
 
-        <activity android:name=".auth.LoginActivity"
+      <meta-data
-                  android:exported="true">
+        android:name="android.app.shortcuts"
-            <intent-filter>
+        android:resource="@xml/shortcuts" />
-                <category android:name="android.intent.category.LAUNCHER" />
+    </activity>
+    <activity android:name=".WelcomeActivity" />
+    <activity
+      android:name=".upload.UploadActivity"
+      android:configChanges="orientation|screenSize|keyboard"
+      android:exported="true"
+      android:hardwareAccelerated="false"
+      android:icon="@mipmap/ic_launcher"
+      android:windowSoftInputMode="adjustPan">
+      <intent-filter android:label="@string/intent_share_upload_label">
+        <action android:name="android.intent.action.SEND" />
 
-                <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
 
-            <meta-data android:name="android.app.shortcuts"
+        <data android:mimeType="image/*" />
-                android:resource="@xml/shortcuts" />
+        <data android:mimeType="audio/ogg" />
+      </intent-filter>
+      <intent-filter android:label="@string/intent_share_upload_label">
+        <action android:name="android.intent.action.SEND_MULTIPLE" />
 
-        </activity>
+        <category android:name="android.intent.category.DEFAULT" />
-        <activity android:name=".WelcomeActivity" />
 
-        <activity
+        <data android:mimeType="image/*" />
-            android:hardwareAccelerated="false"
+        <data android:mimeType="audio/ogg" />
-            android:name=".upload.UploadActivity"
+      </intent-filter>
-            android:exported="true"
+    </activity>
-            android:configChanges="orientation|screenSize|keyboard"
+    <activity
-            android:icon="@mipmap/ic_launcher"
+      android:name=".contributions.MainActivity"
-            android:label="@string/app_name"
+      android:configChanges="screenSize|keyboard|orientation"
-            android:windowSoftInputMode="adjustResize"
+      android:icon="@mipmap/ic_launcher"
-            >
+      />
-            <intent-filter android:label="@string/intent_share_upload_label">
+    <activity
-                <action android:name="android.intent.action.SEND" />
+      android:name=".settings.SettingsActivity"
+      android:label="@string/title_activity_settings" />
+    <activity
+      android:name=".AboutActivity"
+      android:label="@string/title_activity_about"
+      android:parentActivityName=".contributions.MainActivity" />
+    <activity
+      android:name=".auth.SignupActivity"
+      android:configChanges="orientation|screenLayout|screenSize"
+      android:label="@string/title_activity_signup" />
+    <activity
+      android:name=".notification.NotificationActivity"
+      android:label="@string/navigation_item_notification" />
+    <activity
+      android:name=".quiz.QuizActivity"
+      android:label="@string/quiz" />
+    <activity
+      android:name=".quiz.QuizResultActivity"
+      android:label="@string/result" />
+    <activity
+      android:name=".customselector.ui.selector.CustomSelectorActivity"
+      android:configChanges="screenSize|keyboard|orientation"
+      android:label="@string/title_activity_custom_selector"
+      android:parentActivityName=".contributions.MainActivity" />
+    <activity
+      android:name=".category.CategoryDetailsActivity"
+      android:configChanges="screenSize|keyboard|orientation"
+      android:label="@string/title_activity_featured_images"
+      android:parentActivityName=".contributions.MainActivity" />
+    <activity
+      android:name=".explore.depictions.WikidataItemDetailsActivity"
+      android:configChanges="screenSize|keyboard|orientation"
+      android:label="@string/title_activity_featured_images"
+      android:parentActivityName=".contributions.MainActivity" />
+    <activity
+      android:name=".explore.SearchActivity"
+      android:configChanges="orientation|keyboardHidden|screenSize"
+      android:label="@string/title_activity_search"
+      android:launchMode="singleTop"
+      android:parentActivityName=".contributions.MainActivity" />
+    <activity
+      android:name=".profile.ProfileActivity"
+      android:configChanges="orientation|screenSize|keyboard"
+      android:label="@string/Profile" />
+    <activity
+      android:name=".review.ReviewActivity"
+      android:label="@string/title_activity_review" />
+    <activity
+      android:name=".locationpicker.LocationPickerActivity"
+      android:label="Location Picker" />
 
-                <category android:name="android.intent.category.DEFAULT" />
+    <service
+      android:name=".auth.WikiAccountAuthenticatorService"
+      android:exported="true"
+      android:process=":auth">
+      <intent-filter>
+        <action android:name="android.accounts.AccountAuthenticator" />
+      </intent-filter>
 
-                <data android:mimeType="image/*" />
+      <meta-data
-                <data android:mimeType="audio/ogg" />
+        android:name="android.accounts.AccountAuthenticator"
-            </intent-filter>
+        android:resource="@xml/authenticator" />
-            <intent-filter android:label="@string/intent_share_upload_label">
+    </service>
-                <action android:name="android.intent.action.SEND_MULTIPLE" />
+    <service
+      android:name="org.acra.sender.SenderService"
+      android:exported="false"
+      android:process=":acra" />
+    
+    <service
+      android:name="androidx.work.impl.foreground.SystemForegroundService"
+      android:foregroundServiceType="dataSync" />
 
-                <category android:name="android.intent.category.DEFAULT" />
+    <provider
+      android:name=".filepicker.ExtendedFileProvider"
+      android:authorities="${applicationId}.provider"
+      android:exported="false"
+      android:grantUriPermissions="true">
+      <meta-data
+        android:name="android.support.FILE_PROVIDER_PATHS"
+        android:resource="@xml/provider_paths" />
+    </provider>
+    <provider
+      android:name=".category.CategoryContentProvider"
+      android:authorities="${applicationId}.categories.contentprovider"
+      android:exported="false"
+      android:label="@string/provider_categories"
+      android:syncable="false" />
+    <provider
+      android:name=".explore.recentsearches.RecentSearchesContentProvider"
+      android:authorities="${applicationId}.explore.recentsearches.contentprovider"
+      android:exported="false"
+      android:label="@string/provider_searches"
+      android:syncable="false" />
+    <provider
+      android:name=".recentlanguages.RecentLanguagesContentProvider"
+      android:authorities="${applicationId}.recentlanguages.contentprovider"
+      android:exported="false"
+      android:label="@string/provider_recent_languages"
+      android:syncable="false" />
+    <provider
+      android:name=".bookmarks.pictures.BookmarkPicturesContentProvider"
+      android:authorities="${applicationId}.bookmarks.contentprovider"
+      android:exported="false"
+      android:label="@string/provider_bookmarks"
+      android:syncable="false" />
+    <provider
+      android:name=".bookmarks.items.BookmarkItemsContentProvider"
+      android:authorities="${applicationId}.bookmarks.items.contentprovider"
+      android:exported="false"
+      android:label="@string/provider_bookmarks_location"
+      android:syncable="false" />
 
-                <data android:mimeType="image/*" />
+    <receiver
-                <data android:mimeType="audio/ogg" />
+      android:name=".widget.PicOfDayAppWidget"
-            </intent-filter>
+      android:exported="true">
-        </activity>
+      <intent-filter>
-        <activity
+        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-            android:name=".contributions.MainActivity"
+      </intent-filter>
-            android:icon="@mipmap/ic_launcher"
-            android:label="@string/app_name"
-            android:configChanges="screenSize|keyboard|orientation" />
-        <activity
-            android:name=".settings.SettingsActivity"
-            android:label="@string/title_activity_settings" />
-        <activity
-            android:name=".AboutActivity"
-            android:label="@string/title_activity_about"
-            android:parentActivityName=".contributions.MainActivity" />
 
-        <activity
+      <meta-data
-            android:name=".auth.SignupActivity"
+        android:name="android.appwidget.provider"
-            android:configChanges="orientation|screenLayout|screenSize"
+        android:resource="@xml/pic_of_day_app_widget_info" />
-            android:label="@string/title_activity_signup" />
+    </receiver>
 
-        <activity
+    <uses-library
-            android:name=".notification.NotificationActivity"
+      android:name="org.apache.http.legacy"
-            android:label="@string/navigation_item_notification" />
+      android:required="false" />
-
+  </application>
-        <activity android:name=".quiz.QuizActivity"
-            android:label="@string/quiz"/>
-
-        <activity android:name=".quiz.QuizResultActivity"
-            android:label="@string/result"/>
-
-        <activity
-            android:name=".customselector.ui.selector.CustomSelectorActivity"
-            android:label="@string/title_activity_custom_selector"
-            android:configChanges="screenSize|keyboard|orientation"
-            android:parentActivityName=".contributions.MainActivity" />
-
-        <activity
-            android:name=".category.CategoryDetailsActivity"
-            android:label="@string/title_activity_featured_images"
-            android:configChanges="screenSize|keyboard|orientation"
-            android:parentActivityName=".contributions.MainActivity" />
-
-        <activity
-            android:name=".explore.depictions.WikidataItemDetailsActivity"
-            android:label="@string/title_activity_featured_images"
-            android:configChanges="screenSize|keyboard|orientation"
-            android:parentActivityName=".contributions.MainActivity" />
-
-        <activity
-            android:name=".explore.SearchActivity"
-            android:label="@string/title_activity_search"
-            android:launchMode="singleTop"
-            android:configChanges="orientation|keyboardHidden|screenSize"
-            android:parentActivityName=".contributions.MainActivity"
-            />
-
-        <activity
-            android:name=".profile.ProfileActivity"
-            android:configChanges="orientation|screenSize|keyboard"
-            android:label="@string/Profile" />
-
-        <activity
-            android:name=".review.ReviewActivity"
-            android:label="@string/title_activity_review" />
-
-        <activity
-          android:name=".LocationPicker.LocationPickerActivity"
-          android:label="Location Picker" />
-
-        <service
-            android:name=".auth.WikiAccountAuthenticatorService"
-            android:exported="true"
-            android:process=":auth">
-            <intent-filter>
-                <action android:name="android.accounts.AccountAuthenticator" />
-            </intent-filter>
-            <meta-data
-                android:name="android.accounts.AccountAuthenticator"
-                android:resource="@xml/authenticator" />
-        </service>
-
-        <service
-            android:name="org.acra.sender.SenderService"
-            android:exported="false"
-            android:process=":acra" />
-
-        <provider
-            android:name=".filepicker.ExtendedFileProvider"
-            android:authorities="${applicationId}.provider"
-            android:exported="false"
-            android:grantUriPermissions="true">
-            <meta-data
-                android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/provider_paths" />
-        </provider>
-
-        <provider
-            android:name=".category.CategoryContentProvider"
-            android:authorities="${applicationId}.categories.contentprovider"
-            android:exported="false"
-            android:label="@string/provider_categories"
-            android:syncable="false" />
-
-        <provider
-            android:name=".explore.recentsearches.RecentSearchesContentProvider"
-            android:authorities="${applicationId}.explore.recentsearches.contentprovider"
-            android:exported="false"
-            android:label="@string/provider_searches"
-            android:syncable="false" />
-
-        <provider
-          android:name=".recentlanguages.RecentLanguagesContentProvider"
-          android:authorities="${applicationId}.recentlanguages.contentprovider"
-          android:exported="false"
-          android:label="@string/provider_recent_languages"
-          android:syncable="false" />
-
-        <provider
-            android:name=".bookmarks.pictures.BookmarkPicturesContentProvider"
-            android:authorities="${applicationId}.bookmarks.contentprovider"
-            android:exported="false"
-            android:label="@string/provider_bookmarks"
-            android:syncable="false" />
-
-        <provider
-            android:name=".bookmarks.locations.BookmarkLocationsContentProvider"
-            android:authorities="${applicationId}.bookmarks.locations.contentprovider"
-            android:exported="false"
-            android:label="@string/provider_bookmarks_location"
-            android:syncable="false" />
-
-        <provider
-          android:name=".bookmarks.items.BookmarkItemsContentProvider"
-          android:authorities="${applicationId}.bookmarks.items.contentprovider"
-          android:exported="false"
-          android:label="@string/provider_bookmarks_location"
-          android:syncable="false" />
-
-      <receiver android:name=".widget.PicOfDayAppWidget"
-                android:exported="true">
-            <intent-filter>
-                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
-            </intent-filter>
-
-            <meta-data
-                android:name="android.appwidget.provider"
-                android:resource="@xml/pic_of_day_app_widget_info" />
-        </receiver>
-
-        <uses-library android:name="org.apache.http.legacy" android:required="false" />
-
-    </application>
 
 </manifest>

app/src/main/java/fr/free/nrw/commons/AboutActivity.java

@@ -1,187 +0,0 @@
-package fr.free.nrw.commons;
-
-import android.annotation.SuppressLint;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.ArrayAdapter;
-import android.widget.LinearLayout;
-import android.widget.Spinner;
-import androidx.annotation.NonNull;
-import fr.free.nrw.commons.databinding.ActivityAboutBinding;
-import fr.free.nrw.commons.theme.BaseActivity;
-import fr.free.nrw.commons.utils.ConfigUtils;
-import fr.free.nrw.commons.utils.DialogUtil;
-import java.util.Collections;
-import java.util.List;
-
-/**
- * Represents about screen of this app
- */
-public class AboutActivity extends BaseActivity {
-
-    /*
-      This View Binding class is auto-generated for each xml file. The format is usually the name
-      of the file with PascalCasing (The underscore characters will be ignored).
-      More information is available at https://developer.android.com/topic/libraries/view-binding
-     */
-    private ActivityAboutBinding binding;
-
-    /**
-     * This method helps in the creation About screen
-     *
-     * @param savedInstanceState Data bundle
-     */
-    @Override
-    @SuppressLint("StringFormatInvalid")
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        /*
-          Instead of just setting the view with the xml file. We need to use View Binding class.
-         */
-        binding = ActivityAboutBinding.inflate(getLayoutInflater());
-        final View view = binding.getRoot();
-        setContentView(view);
-
-        setSupportActionBar(binding.toolbarBinding.toolbar);
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        final String aboutText = getString(R.string.about_license);
-        /*
-          We can then access all the views by just using the id names like this.
-          camelCasing is used with underscore characters being ignored.
-         */
-        binding.aboutLicense.setHtmlText(aboutText);
-
-        @SuppressLint("StringFormatMatches")
-        String improveText = String.format(getString(R.string.about_improve), Urls.NEW_ISSUE_URL);
-        binding.aboutImprove.setHtmlText(improveText);
-        binding.aboutVersion.setText(ConfigUtils.getVersionNameWithSha(getApplicationContext()));
-
-        Utils.setUnderlinedText(binding.aboutFaq, R.string.about_faq, getApplicationContext());
-        Utils.setUnderlinedText(binding.aboutRateUs, R.string.about_rate_us, getApplicationContext());
-        Utils.setUnderlinedText(binding.aboutUserGuide, R.string.user_guide, getApplicationContext());
-        Utils.setUnderlinedText(binding.aboutPrivacyPolicy, R.string.about_privacy_policy, getApplicationContext());
-        Utils.setUnderlinedText(binding.aboutTranslate, R.string.about_translate, getApplicationContext());
-        Utils.setUnderlinedText(binding.aboutCredits, R.string.about_credits, getApplicationContext());
-
-        /*
-          To set listeners, we can create a separate method and use lambda syntax.
-        */
-        binding.facebookLaunchIcon.setOnClickListener(this::launchFacebook);
-        binding.githubLaunchIcon.setOnClickListener(this::launchGithub);
-        binding.websiteLaunchIcon.setOnClickListener(this::launchWebsite);
-        binding.aboutRateUs.setOnClickListener(this::launchRatings);
-        binding.aboutCredits.setOnClickListener(this::launchCredits);
-        binding.aboutPrivacyPolicy.setOnClickListener(this::launchPrivacyPolicy);
-        binding.aboutUserGuide.setOnClickListener(this::launchUserGuide);
-        binding.aboutFaq.setOnClickListener(this::launchFrequentlyAskedQuesions);
-        binding.aboutTranslate.setOnClickListener(this::launchTranslate);
-    }
-
-    @Override
-    public boolean onSupportNavigateUp() {
-        onBackPressed();
-        return true;
-    }
-
-    public void launchFacebook(View view) {
-        Intent intent;
-        try {
-            intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Urls.FACEBOOK_APP_URL));
-            intent.setPackage(Urls.FACEBOOK_PACKAGE_NAME);
-            startActivity(intent);
-        } catch (Exception e) {
-            Utils.handleWebUrl(this, Uri.parse(Urls.FACEBOOK_WEB_URL));
-        }
-    }
-
-    public void launchGithub(View view) {
-        Intent intent;
-        try {
-            intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Urls.GITHUB_REPO_URL));
-            intent.setPackage(Urls.GITHUB_PACKAGE_NAME);
-            startActivity(intent);
-        } catch (Exception e) {
-            Utils.handleWebUrl(this, Uri.parse(Urls.GITHUB_REPO_URL));
-        }
-    }
-
-    public void launchWebsite(View view) {
-        Utils.handleWebUrl(this, Uri.parse(Urls.WEBSITE_URL));
-    }
-
-    public void launchRatings(View view){
-        Utils.rateApp(this);
-    }
-
-    public void launchCredits(View view) {
-        Utils.handleWebUrl(this, Uri.parse(Urls.CREDITS_URL));
-    }
-
-    public void launchUserGuide(View view) {
-        Utils.handleWebUrl(this, Uri.parse(Urls.USER_GUIDE_URL));
-    }
-
-    public void launchPrivacyPolicy(View view) {
-        Utils.handleWebUrl(this, Uri.parse(BuildConfig.PRIVACY_POLICY_URL));
-    }
-
-    public void launchFrequentlyAskedQuesions(View view) {
-        Utils.handleWebUrl(this, Uri.parse(Urls.FAQ_URL));
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        MenuInflater inflater = getMenuInflater();
-        inflater.inflate(R.menu.menu_about, menu);
-        return super.onCreateOptionsMenu(menu);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case R.id.share_app_icon:
-                String shareText = String.format(getString(R.string.share_text), Urls.PLAY_STORE_URL_PREFIX + this.getPackageName());
-                Intent sendIntent = new Intent();
-                sendIntent.setAction(Intent.ACTION_SEND);
-                sendIntent.putExtra(Intent.EXTRA_TEXT, shareText);
-                sendIntent.setType("text/plain");
-                startActivity(Intent.createChooser(sendIntent, getString(R.string.share_via)));
-                return true;
-            default:
-                return super.onOptionsItemSelected(item);
-        }
-    }
-
-    public void launchTranslate(View view) {
-        @NonNull List<String> sortedLocalizedNamesRef = CommonsApplication.getInstance().getLanguageLookUpTable().getCanonicalNames();
-        Collections.sort(sortedLocalizedNamesRef);
-        final ArrayAdapter<String> languageAdapter = new ArrayAdapter<>(AboutActivity.this,
-                android.R.layout.simple_spinner_dropdown_item, sortedLocalizedNamesRef);
-        final Spinner spinner = new Spinner(AboutActivity.this);
-        spinner.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
-        spinner.setAdapter(languageAdapter);
-        spinner.setGravity(17);
-        spinner.setPadding(50,0,0,0);
-
-        Runnable positiveButtonRunnable = () -> {
-            String langCode = CommonsApplication.getInstance().getLanguageLookUpTable().getCodes().get(spinner.getSelectedItemPosition());
-            Utils.handleWebUrl(AboutActivity.this, Uri.parse(Urls.TRANSLATE_WIKI_URL + langCode));
-        };
-        DialogUtil.showAlertDialog(this,
-            getString(R.string.about_translate_title),
-            getString(R.string.about_translate_message),
-            getString(R.string.about_translate_proceed),
-            getString(R.string.about_translate_cancel),
-            positiveButtonRunnable,
-            () -> {},
-            spinner,
-            true);
-    }
-
-}

app/src/main/java/fr/free/nrw/commons/AboutActivity.kt

@@ -0,0 +1,207 @@
+package fr.free.nrw.commons
+
+import android.annotation.SuppressLint
+import android.content.ActivityNotFoundException
+import android.content.Intent
+import android.content.Intent.ACTION_VIEW
+import android.net.Uri
+import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.widget.ArrayAdapter
+import android.widget.LinearLayout
+import android.widget.Spinner
+import fr.free.nrw.commons.CommonsApplication.Companion.instance
+import fr.free.nrw.commons.databinding.ActivityAboutBinding
+import fr.free.nrw.commons.theme.BaseActivity
+import fr.free.nrw.commons.utils.ConfigUtils.getVersionNameWithSha
+import fr.free.nrw.commons.utils.DialogUtil.showAlertDialog
+import java.util.Collections
+import androidx.core.net.toUri
+import fr.free.nrw.commons.utils.applyEdgeToEdgeTopInsets
+import fr.free.nrw.commons.utils.handleWebUrl
+import fr.free.nrw.commons.utils.setUnderlinedText
+
+/**
+ * Represents about screen of this app
+ */
+class AboutActivity : BaseActivity() {
+    /*
+         This View Binding class is auto-generated for each xml file. The format is usually the name
+         of the file with PascalCasing (The underscore characters will be ignored).
+         More information is available at https://developer.android.com/topic/libraries/view-binding
+        */
+    private var binding: ActivityAboutBinding? = null
+
+    /**
+     * This method helps in the creation About screen
+     *
+     * @param savedInstanceState Data bundle
+     */
+    @SuppressLint("StringFormatInvalid")  //TODO:
+    public override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        /*
+          Instead of just setting the view with the xml file. We need to use View Binding class.
+         */
+        binding = ActivityAboutBinding.inflate(layoutInflater)
+        val view: View = binding!!.root
+        applyEdgeToEdgeTopInsets(binding!!.toolbarLayout)
+        setContentView(view)
+
+        setSupportActionBar(binding!!.toolbarBinding.toolbar)
+        supportActionBar!!.setDisplayHomeAsUpEnabled(true)
+        val aboutText = getString(R.string.about_license)
+        /*
+          We can then access all the views by just using the id names like this.
+          camelCasing is used with underscore characters being ignored.
+         */
+        binding!!.aboutLicense.setHtmlText(aboutText)
+
+        @SuppressLint("StringFormatMatches") // TODO:
+        val improveText =
+            String.format(getString(R.string.about_improve), Urls.NEW_ISSUE_URL)
+        binding!!.aboutImprove.setHtmlText(improveText)
+        binding!!.aboutVersion.text = applicationContext.getVersionNameWithSha()
+
+        binding!!.aboutFaq.setUnderlinedText(R.string.about_faq)
+        binding!!.aboutRateUs.setUnderlinedText(R.string.about_rate_us)
+        binding!!.aboutUserGuide.setUnderlinedText(R.string.user_guide)
+        binding!!.aboutPrivacyPolicy.setUnderlinedText(R.string.about_privacy_policy)
+        binding!!.aboutTranslate.setUnderlinedText(R.string.about_translate)
+        binding!!.aboutCredits.setUnderlinedText(R.string.about_credits)
+
+        /*
+          To set listeners, we can create a separate method and use lambda syntax.
+        */
+        binding!!.facebookLaunchIcon.setOnClickListener(::launchFacebook)
+        binding!!.githubLaunchIcon.setOnClickListener(::launchGithub)
+        binding!!.websiteLaunchIcon.setOnClickListener(::launchWebsite)
+        binding!!.aboutRateUs.setOnClickListener(::launchRatings)
+        binding!!.aboutCredits.setOnClickListener(::launchCredits)
+        binding!!.aboutPrivacyPolicy.setOnClickListener(::launchPrivacyPolicy)
+        binding!!.aboutUserGuide.setOnClickListener(::launchUserGuide)
+        binding!!.aboutFaq.setOnClickListener(::launchFrequentlyAskedQuesions)
+        binding!!.aboutTranslate.setOnClickListener(::launchTranslate)
+    }
+
+    override fun onSupportNavigateUp(): Boolean {
+        onBackPressed()
+        return true
+    }
+
+    fun launchFacebook(view: View?) {
+        val intent: Intent
+        try {
+            intent = Intent(ACTION_VIEW, Urls.FACEBOOK_APP_URL.toUri())
+            intent.setPackage(Urls.FACEBOOK_PACKAGE_NAME)
+            startActivity(intent)
+        } catch (e: Exception) {
+            handleWebUrl(this, Urls.FACEBOOK_WEB_URL.toUri())
+        }
+    }
+
+    fun launchGithub(view: View?) {
+        val intent: Intent
+        try {
+            intent = Intent(ACTION_VIEW, Urls.GITHUB_REPO_URL.toUri())
+            intent.setPackage(Urls.GITHUB_PACKAGE_NAME)
+            startActivity(intent)
+        } catch (e: Exception) {
+            handleWebUrl(this, Urls.GITHUB_REPO_URL.toUri())
+        }
+    }
+
+    fun launchWebsite(view: View?) {
+        handleWebUrl(this, Urls.WEBSITE_URL.toUri())
+    }
+
+    fun launchRatings(view: View?) {
+        try {
+            startActivity(
+                Intent(
+                    ACTION_VIEW,
+                    (Urls.PLAY_STORE_PREFIX + packageName).toUri()
+                )
+            )
+        } catch (_: ActivityNotFoundException) {
+            handleWebUrl(this, (Urls.PLAY_STORE_URL_PREFIX + packageName).toUri())
+        }
+    }
+
+    fun launchCredits(view: View?) {
+        handleWebUrl(this, Urls.CREDITS_URL.toUri())
+    }
+
+    fun launchUserGuide(view: View?) {
+        handleWebUrl(this, Urls.USER_GUIDE_URL.toUri())
+    }
+
+    fun launchPrivacyPolicy(view: View?) {
+        handleWebUrl(this, BuildConfig.PRIVACY_POLICY_URL.toUri())
+    }
+
+    fun launchFrequentlyAskedQuesions(view: View?) {
+        handleWebUrl(this, Urls.FAQ_URL.toUri())
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        val inflater = menuInflater
+        inflater.inflate(R.menu.menu_about, menu)
+        return super.onCreateOptionsMenu(menu)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.share_app_icon -> {
+                val shareText = String.format(
+                    getString(R.string.share_text),
+                    Urls.PLAY_STORE_URL_PREFIX + this.packageName
+                )
+                val sendIntent = Intent()
+                sendIntent.setAction(Intent.ACTION_SEND)
+                sendIntent.putExtra(Intent.EXTRA_TEXT, shareText)
+                sendIntent.setType("text/plain")
+                startActivity(Intent.createChooser(sendIntent, getString(R.string.share_via)))
+                return true
+            }
+
+            else -> return super.onOptionsItemSelected(item)
+        }
+    }
+
+    fun launchTranslate(view: View?) {
+        val sortedLocalizedNamesRef = instance.languageLookUpTable!!.getCanonicalNames()
+        Collections.sort(sortedLocalizedNamesRef)
+        val languageAdapter = ArrayAdapter(
+            this@AboutActivity,
+            android.R.layout.simple_spinner_dropdown_item, sortedLocalizedNamesRef
+        )
+        val spinner = Spinner(this@AboutActivity)
+        spinner.layoutParams =
+            LinearLayout.LayoutParams(
+                LinearLayout.LayoutParams.WRAP_CONTENT,
+                LinearLayout.LayoutParams.WRAP_CONTENT
+            )
+        spinner.adapter = languageAdapter
+        spinner.gravity = 17
+        spinner.setPadding(50, 0, 0, 0)
+
+        val positiveButtonRunnable = Runnable {
+            val langCode = instance.languageLookUpTable!!.getCodes()[spinner.selectedItemPosition]
+            handleWebUrl(this@AboutActivity, (Urls.TRANSLATE_WIKI_URL + langCode).toUri())
+        }
+        showAlertDialog(
+            this,
+            getString(R.string.about_translate_title),
+            getString(R.string.about_translate_message),
+            getString(R.string.about_translate_proceed),
+            getString(R.string.about_translate_cancel),
+            positiveButtonRunnable,
+            {},
+            spinner
+        )
+    }
+}

app/src/main/java/fr/free/nrw/commons/BaseMarker.kt

@@ -0,0 +1,63 @@
+package fr.free.nrw.commons
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.Drawable
+import fr.free.nrw.commons.location.LatLng
+import fr.free.nrw.commons.nearby.Place
+
+class BaseMarker {
+    private var _position: LatLng = LatLng(0.0, 0.0, 0f)
+    private var _title: String = ""
+    private var _place: Place = Place()
+    private var _icon: Bitmap? = null
+
+    var position: LatLng
+        get() = _position
+        set(value) {
+            _position = value
+        }
+    var title: String
+        get() = _title
+        set(value) {
+            _title = value
+        }
+
+    var place: Place
+        get() = _place
+        set(value) {
+            _place = value
+        }
+    var icon: Bitmap?
+        get() = _icon
+        set(value) {
+            _icon = value
+        }
+
+    constructor() {
+    }
+
+    fun fromResource(
+        context: Context,
+        drawableResId: Int,
+    ) {
+        val drawable: Drawable = context.resources.getDrawable(drawableResId)
+        icon =
+            if (drawable is BitmapDrawable) {
+                drawable.bitmap
+            } else {
+                val bitmap =
+                    Bitmap.createBitmap(
+                        drawable.intrinsicWidth,
+                        drawable.intrinsicHeight,
+                        Bitmap.Config.ARGB_8888,
+                    )
+                val canvas = Canvas(bitmap)
+                drawable.setBounds(0, 0, canvas.width, canvas.height)
+                drawable.draw(canvas)
+                bitmap
+            }
+    }
+}

app/src/main/java/fr/free/nrw/commons/BasePresenter.java

@@ -1,18 +0,0 @@
-package fr.free.nrw.commons;
-
-import androidx.annotation.NonNull;
-
-/**
- * Base presenter, enforcing contracts to atach and detach view
- */
-public interface BasePresenter<T> {
-    /**
-     * Until a view is attached, it is open to listen events from the presenter
-     */
-    void onAttachView(@NonNull T view);
-
-    /**
-     * Detaching a view makes sure that the view no more receives events from the presenter
-     */
-    void onDetachView();
-}

app/src/main/java/fr/free/nrw/commons/BasePresenter.kt

@@ -0,0 +1,10 @@
+package fr.free.nrw.commons
+
+/**
+ * Base presenter, enforcing contracts to attach and detach view
+ */
+interface BasePresenter<T> {
+    fun onAttachView(view: T)
+
+    fun onDetachView()
+}

app/src/main/java/fr/free/nrw/commons/BetaConstants.kt

@@ -10,9 +10,10 @@ object BetaConstants {
      * production server where beta server does not work
      */
     const val COMMONS_URL = "https://commons.wikimedia.org/"
+
     /**
      * Commons production's depicts property which is used in beta for some specific GET calls on
      * production server where beta server does not work
      */
     const val DEPICTS_PROPERTY = "P180"
-}
+}

app/src/main/java/fr/free/nrw/commons/CameraPosition.kt

@@ -0,0 +1,33 @@
+package fr.free.nrw.commons
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class CameraPosition(
+    val latitude: Double,
+    val longitude: Double,
+    val zoom: Double,
+) : Parcelable {
+    constructor(parcel: Parcel) : this(
+        parcel.readDouble(),
+        parcel.readDouble(),
+        parcel.readDouble(),
+    )
+
+    override fun writeToParcel(
+        parcel: Parcel,
+        flags: Int,
+    ) {
+        parcel.writeDouble(latitude)
+        parcel.writeDouble(longitude)
+        parcel.writeDouble(zoom)
+    }
+
+    override fun describeContents(): Int = 0
+
+    companion object CREATOR : Parcelable.Creator<CameraPosition> {
+        override fun createFromParcel(parcel: Parcel): CameraPosition = CameraPosition(parcel)
+
+        override fun newArray(size: Int): Array<CameraPosition?> = arrayOfNulls(size)
+    }
+}

app/src/main/java/fr/free/nrw/commons/CommonsAppAdapter.java

@@ -1,86 +0,0 @@
-package fr.free.nrw.commons;
-
-import androidx.annotation.NonNull;
-
-import org.wikipedia.AppAdapter;
-import org.wikipedia.dataclient.SharedPreferenceCookieManager;
-import org.wikipedia.dataclient.WikiSite;
-import org.wikipedia.json.GsonMarshaller;
-import org.wikipedia.json.GsonUnmarshaller;
-import org.wikipedia.login.LoginResult;
-
-import fr.free.nrw.commons.auth.SessionManager;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import okhttp3.OkHttpClient;
-
-public class CommonsAppAdapter extends AppAdapter {
-    private final int DEFAULT_THUMB_SIZE = 640;
-    private final String COOKIE_STORE_NAME = "cookie_store";
-
-    private final SessionManager sessionManager;
-    private final JsonKvStore preferences;
-
-    CommonsAppAdapter(@NonNull SessionManager sessionManager, @NonNull JsonKvStore preferences) {
-        this.sessionManager = sessionManager;
-        this.preferences = preferences;
-    }
-
-    @Override
-    public String getMediaWikiBaseUrl() {
-        return BuildConfig.COMMONS_URL;
-    }
-
-    @Override
-    public String getRestbaseUriFormat() {
-        return BuildConfig.COMMONS_URL;
-    }
-
-    @Override
-    public OkHttpClient getOkHttpClient(@NonNull WikiSite wikiSite) {
-        return OkHttpConnectionFactory.getClient();
-    }
-
-    @Override
-    public int getDesiredLeadImageDp() {
-        return DEFAULT_THUMB_SIZE;
-    }
-
-    @Override
-    public boolean isLoggedIn() {
-        return sessionManager.isUserLoggedIn();
-    }
-
-    @Override
-    public String getUserName() {
-        return sessionManager.getUserName();
-    }
-
-    @Override
-    public String getPassword() {
-        return sessionManager.getPassword();
-    }
-
-    @Override
-    public void updateAccount(@NonNull LoginResult result) {
-        sessionManager.updateAccount(result);
-    }
-
-    @Override
-    public SharedPreferenceCookieManager getCookies() {
-        if (!preferences.contains(COOKIE_STORE_NAME)) {
-            return null;
-        }
-        return GsonUnmarshaller.unmarshal(SharedPreferenceCookieManager.class,
-                preferences.getString(COOKIE_STORE_NAME, null));
-    }
-
-    @Override
-    public void setCookies(@NonNull SharedPreferenceCookieManager cookies) {
-        preferences.putString(COOKIE_STORE_NAME, GsonMarshaller.marshal(cookies));
-    }
-
-    @Override
-    public boolean logErrorsInsteadOfCrashing() {
-        return false;
-    }
-}

app/src/main/java/fr/free/nrw/commons/CommonsApplication.java

@@ -1,340 +0,0 @@
-package fr.free.nrw.commons;
-
-import static fr.free.nrw.commons.data.DBOpenHelper.CONTRIBUTIONS_TABLE;
-import static org.acra.ReportField.ANDROID_VERSION;
-import static org.acra.ReportField.APP_VERSION_CODE;
-import static org.acra.ReportField.APP_VERSION_NAME;
-import static org.acra.ReportField.PHONE_MODEL;
-import static org.acra.ReportField.STACK_TRACE;
-import static org.acra.ReportField.USER_COMMENT;
-
-import android.annotation.SuppressLint;
-import android.app.NotificationChannel;
-import android.app.NotificationManager;
-import android.content.Context;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteException;
-import android.os.Build;
-import android.os.Process;
-import android.util.Log;
-import androidx.annotation.NonNull;
-import androidx.multidex.BuildConfig;
-import androidx.multidex.MultiDexApplication;
-import com.facebook.drawee.backends.pipeline.Fresco;
-import com.facebook.imagepipeline.core.ImagePipeline;
-import com.facebook.imagepipeline.core.ImagePipelineConfig;
-import com.mapbox.mapboxsdk.Mapbox;
-import com.mapbox.mapboxsdk.WellKnownTileServer;
-import fr.free.nrw.commons.auth.SessionManager;
-import fr.free.nrw.commons.bookmarks.items.BookmarkItemsDao.Table;
-import fr.free.nrw.commons.bookmarks.locations.BookmarkLocationsDao;
-import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesDao;
-import fr.free.nrw.commons.category.CategoryDao;
-import fr.free.nrw.commons.concurrency.BackgroundPoolExceptionHandler;
-import fr.free.nrw.commons.concurrency.ThreadPoolService;
-import fr.free.nrw.commons.contributions.ContributionDao;
-import fr.free.nrw.commons.data.DBOpenHelper;
-import fr.free.nrw.commons.di.ApplicationlessInjection;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import fr.free.nrw.commons.logging.FileLoggingTree;
-import fr.free.nrw.commons.logging.LogUtils;
-import fr.free.nrw.commons.media.CustomOkHttpNetworkFetcher;
-import fr.free.nrw.commons.settings.Prefs;
-import fr.free.nrw.commons.upload.FileUtils;
-import fr.free.nrw.commons.utils.ConfigUtils;
-import io.reactivex.Completable;
-import io.reactivex.android.schedulers.AndroidSchedulers;
-import io.reactivex.internal.functions.Functions;
-import io.reactivex.plugins.RxJavaPlugins;
-import io.reactivex.schedulers.Schedulers;
-import java.io.File;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import javax.inject.Inject;
-import javax.inject.Named;
-import org.acra.ACRA;
-import org.acra.annotation.AcraCore;
-import org.acra.annotation.AcraDialog;
-import org.acra.annotation.AcraMailSender;
-import org.acra.data.StringFormat;
-import org.wikipedia.AppAdapter;
-import org.wikipedia.language.AppLanguageLookUpTable;
-import timber.log.Timber;
-
-@AcraCore(
-    buildConfigClass = BuildConfig.class,
-    resReportSendSuccessToast = R.string.crash_dialog_ok_toast,
-    reportFormat = StringFormat.KEY_VALUE_LIST,
-    reportContent = {USER_COMMENT, APP_VERSION_CODE, APP_VERSION_NAME, ANDROID_VERSION, PHONE_MODEL,
-        STACK_TRACE}
-)
-
-@AcraMailSender(
-    mailTo = "commons-app-android-private@googlegroups.com",
-    reportAsFile = false
-)
-
-@AcraDialog(
-    resTheme = R.style.Theme_AppCompat_Dialog,
-    resText = R.string.crash_dialog_text,
-    resTitle = R.string.crash_dialog_title,
-    resCommentPrompt = R.string.crash_dialog_comment_prompt
-)
-
-public class CommonsApplication extends MultiDexApplication {
-
-    public static final String IS_LIMITED_CONNECTION_MODE_ENABLED = "is_limited_connection_mode_enabled";
-    @Inject
-    SessionManager sessionManager;
-    @Inject
-    DBOpenHelper dbOpenHelper;
-
-    @Inject
-    @Named("default_preferences")
-    JsonKvStore defaultPrefs;
-
-    @Inject
-    CustomOkHttpNetworkFetcher customOkHttpNetworkFetcher;
-
-    /**
-     * Constants begin
-     */
-    public static final int OPEN_APPLICATION_DETAIL_SETTINGS = 1001;
-
-    public static final String DEFAULT_EDIT_SUMMARY = "Uploaded using [[COM:MOA|Commons Mobile App]]";
-
-    public static final String FEEDBACK_EMAIL = "commons-app-android@googlegroups.com";
-
-    public static final String FEEDBACK_EMAIL_SUBJECT = "Commons Android App Feedback";
-
-    public static final String REPORT_EMAIL = "commons-app-android-private@googlegroups.com";
-
-    public static final String REPORT_EMAIL_SUBJECT = "Report a violation";
-
-    public static final String NOTIFICATION_CHANNEL_ID_ALL = "CommonsNotificationAll";
-
-    public static final String FEEDBACK_EMAIL_TEMPLATE_HEADER = "-- Technical information --";
-
-    /**
-     * Constants End
-     */
-
-    private static CommonsApplication INSTANCE;
-
-    public static CommonsApplication getInstance() {
-        return INSTANCE;
-    }
-
-    private AppLanguageLookUpTable languageLookUpTable;
-
-    public AppLanguageLookUpTable getLanguageLookUpTable() {
-        return languageLookUpTable;
-    }
-
-    @Inject
-    ContributionDao contributionDao;
-
-    /**
-     *  In-memory list of contributions whose uploads have been paused by the user
-     */
-    public static Map<String, Boolean> pauseUploads = new HashMap<>();
-
-    /**
-     * Used to declare and initialize various components and dependencies
-     */
-    @Override
-    public void onCreate() {
-        super.onCreate();
-
-        INSTANCE = this;
-        ACRA.init(this);
-        Mapbox.getInstance(this, getString(R.string.mapbox_commons_app_token), WellKnownTileServer.Mapbox);
-
-        ApplicationlessInjection
-            .getInstance(this)
-            .getCommonsApplicationComponent()
-            .inject(this);
-
-        AppAdapter.set(new CommonsAppAdapter(sessionManager, defaultPrefs));
-
-        initTimber();
-
-        if (!defaultPrefs.getBoolean("has_user_manually_removed_location")) {
-            Set<String> defaultExifTagsSet = defaultPrefs.getStringSet(Prefs.MANAGED_EXIF_TAGS);
-            if (null == defaultExifTagsSet) {
-                defaultExifTagsSet = new HashSet<>();
-            }
-            defaultExifTagsSet.add(getString(R.string.exif_tag_location));
-            defaultPrefs.putStringSet(Prefs.MANAGED_EXIF_TAGS, defaultExifTagsSet);
-        }
-
-//        Set DownsampleEnabled to True to downsample the image in case it's heavy
-        ImagePipelineConfig config = ImagePipelineConfig.newBuilder(this)
-            .setNetworkFetcher(customOkHttpNetworkFetcher)
-            .setDownsampleEnabled(true)
-            .build();
-        try {
-            Fresco.initialize(this, config);
-        } catch (Exception e) {
-            Timber.e(e);
-            // TODO: Remove when we're able to initialize Fresco in test builds.
-        }
-
-        createNotificationChannel(this);
-
-        languageLookUpTable = new AppLanguageLookUpTable(this);
-
-        // This handler will catch exceptions thrown from Observables after they are disposed,
-        // or from Observables that are (deliberately or not) missing an onError handler.
-        RxJavaPlugins.setErrorHandler(Functions.emptyConsumer());
-
-        // Fire progress callbacks for every 3% of uploaded content
-        System.setProperty("in.yuvi.http.fluent.PROGRESS_TRIGGER_THRESHOLD", "3.0");
-    }
-
-    /**
-     * Plants debug and file logging tree. Timber lets you plant your own logging trees.
-     */
-    private void initTimber() {
-        boolean isBeta = ConfigUtils.isBetaFlavour();
-        String logFileName =
-            isBeta ? "CommonsBetaAppLogs" : "CommonsAppLogs";
-        String logDirectory = LogUtils.getLogDirectory();
-        //Delete stale logs if they have exceeded the specified size
-        deleteStaleLogs(logFileName, logDirectory);
-
-        FileLoggingTree tree = new FileLoggingTree(
-            Log.VERBOSE,
-            logFileName,
-            logDirectory,
-            1000,
-            getFileLoggingThreadPool());
-
-        Timber.plant(tree);
-        Timber.plant(new Timber.DebugTree());
-    }
-
-    /**
-     * Deletes the logs zip file at the specified directory and file locations specified in the
-     * params
-     *
-     * @param logFileName
-     * @param logDirectory
-     */
-    private void deleteStaleLogs(String logFileName, String logDirectory) {
-        try {
-            File file = new File(logDirectory + "/zip/" + logFileName + ".zip");
-            if (file.exists() && file.getTotalSpace() > 1000000) {// In Kbs
-                file.delete();
-            }
-        } catch (Exception e) {
-            Timber.e(e);
-        }
-    }
-
-    public static boolean isRoboUnitTest() {
-        return "robolectric".equals(Build.FINGERPRINT);
-    }
-
-    private ThreadPoolService getFileLoggingThreadPool() {
-        return new ThreadPoolService.Builder("file-logging-thread")
-            .setPriority(Process.THREAD_PRIORITY_LOWEST)
-            .setPoolSize(1)
-            .setExceptionHandler(new BackgroundPoolExceptionHandler())
-            .build();
-    }
-
-    public static void createNotificationChannel(@NonNull Context context) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            NotificationManager manager = (NotificationManager) context
-                .getSystemService(Context.NOTIFICATION_SERVICE);
-            NotificationChannel channel = manager
-                .getNotificationChannel(NOTIFICATION_CHANNEL_ID_ALL);
-            if (channel == null) {
-                channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID_ALL,
-                    context.getString(R.string.notifications_channel_name_all),
-                    NotificationManager.IMPORTANCE_DEFAULT);
-                manager.createNotificationChannel(channel);
-            }
-        }
-    }
-
-    public String getUserAgent() {
-        return "Commons/" + ConfigUtils.getVersionNameWithSha(this)
-            + " (https://mediawiki.org/wiki/Apps/Commons) Android/" + Build.VERSION.RELEASE;
-    }
-
-    /**
-     * clears data of current application
-     *
-     * @param context        Application context
-     * @param logoutListener Implementation of interface LogoutListener
-     */
-    @SuppressLint("CheckResult")
-    public void clearApplicationData(Context context, LogoutListener logoutListener) {
-        File cacheDirectory = context.getCacheDir();
-        File applicationDirectory = new File(cacheDirectory.getParent());
-        if (applicationDirectory.exists()) {
-            String[] fileNames = applicationDirectory.list();
-            for (String fileName : fileNames) {
-                if (!fileName.equals("lib")) {
-                    FileUtils.deleteFile(new File(applicationDirectory, fileName));
-                }
-            }
-        }
-
-        sessionManager.logout()
-            .andThen(Completable.fromAction(() -> {
-                    Timber.d("All accounts have been removed");
-                    clearImageCache();
-                    //TODO: fix preference manager
-                    defaultPrefs.clearAll();
-                    defaultPrefs.putBoolean("firstrun", false);
-                    updateAllDatabases();
-                }
-            ))
-            .subscribeOn(Schedulers.io())
-            .observeOn(AndroidSchedulers.mainThread())
-            .subscribe(logoutListener::onLogoutComplete, Timber::e);
-    }
-
-    /**
-     * Clear all images cache held by Fresco
-     */
-    private void clearImageCache() {
-        ImagePipeline imagePipeline = Fresco.getImagePipeline();
-        imagePipeline.clearCaches();
-    }
-
-    /**
-     * Deletes all tables and re-creates them.
-     */
-    private void updateAllDatabases() {
-        dbOpenHelper.getReadableDatabase().close();
-        SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
-
-        CategoryDao.Table.onDelete(db);
-        dbOpenHelper.deleteTable(db,
-            CONTRIBUTIONS_TABLE);//Delete the contributions table in the existing db on older versions
-
-        try {
-            contributionDao.deleteAll();
-        } catch (SQLiteException e) {
-            Timber.e(e);
-        }
-        BookmarkPicturesDao.Table.onDelete(db);
-        BookmarkLocationsDao.Table.onDelete(db);
-        Table.onDelete(db);
-    }
-
-
-    /**
-     * Interface used to get log-out events
-     */
-    public interface LogoutListener {
-
-        void onLogoutComplete();
-    }
-}

app/src/main/java/fr/free/nrw/commons/CommonsApplication.kt

@@ -0,0 +1,417 @@
+package fr.free.nrw.commons
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import android.content.Intent
+import android.database.sqlite.SQLiteException
+import android.os.Build
+import android.os.Process
+import android.util.Log
+import androidx.multidex.MultiDexApplication
+import com.facebook.drawee.backends.pipeline.Fresco
+import com.facebook.imagepipeline.core.ImagePipelineConfig
+import fr.free.nrw.commons.auth.LoginActivity
+import fr.free.nrw.commons.auth.SessionManager
+import fr.free.nrw.commons.bookmarks.items.BookmarkItemsTable
+import fr.free.nrw.commons.bookmarks.pictures.BookmarksTable
+import fr.free.nrw.commons.category.CategoryDao
+import fr.free.nrw.commons.concurrency.BackgroundPoolExceptionHandler
+import fr.free.nrw.commons.concurrency.ThreadPoolService
+import fr.free.nrw.commons.contributions.ContributionDao
+import fr.free.nrw.commons.data.DBOpenHelper
+import fr.free.nrw.commons.di.ApplicationlessInjection
+import fr.free.nrw.commons.kvstore.JsonKvStore
+import fr.free.nrw.commons.language.AppLanguageLookUpTable
+import fr.free.nrw.commons.logging.FileLoggingTree
+import fr.free.nrw.commons.logging.LogUtils
+import fr.free.nrw.commons.media.CustomOkHttpNetworkFetcher
+import fr.free.nrw.commons.settings.Prefs
+import fr.free.nrw.commons.upload.FileUtils
+import fr.free.nrw.commons.utils.ConfigUtils.getVersionNameWithSha
+import fr.free.nrw.commons.utils.ConfigUtils.isBetaFlavour
+import fr.free.nrw.commons.wikidata.cookies.CommonsCookieJar
+import io.reactivex.Completable
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.internal.functions.Functions
+import io.reactivex.plugins.RxJavaPlugins
+import io.reactivex.schedulers.Schedulers
+import org.acra.ACRA.init
+import org.acra.ReportField
+import org.acra.annotation.AcraCore
+import org.acra.annotation.AcraDialog
+import org.acra.annotation.AcraMailSender
+import org.acra.data.StringFormat
+import timber.log.Timber
+import timber.log.Timber.DebugTree
+import java.io.File
+import javax.inject.Inject
+import javax.inject.Named
+
+@AcraCore(
+    buildConfigClass = BuildConfig::class,
+    resReportSendSuccessToast = R.string.crash_dialog_ok_toast,
+    reportFormat = StringFormat.KEY_VALUE_LIST,
+    reportContent = [ReportField.USER_COMMENT, ReportField.APP_VERSION_CODE, ReportField.APP_VERSION_NAME, ReportField.ANDROID_VERSION, ReportField.PHONE_MODEL, ReportField.STACK_TRACE]
+)
+
+@AcraMailSender(mailTo = "commons-app-android-private@googlegroups.com", reportAsFile = false)
+
+@AcraDialog(
+    resTheme = R.style.Theme_AppCompat_Dialog,
+    resText = R.string.crash_dialog_text,
+    resTitle = R.string.crash_dialog_title,
+    resCommentPrompt = R.string.crash_dialog_comment_prompt
+)
+
+class CommonsApplication : MultiDexApplication() {
+
+    @Inject
+    lateinit var sessionManager: SessionManager
+
+    @Inject
+    lateinit var dbOpenHelper: DBOpenHelper
+
+    @Inject
+    @field:Named("default_preferences")
+    lateinit var defaultPrefs: JsonKvStore
+
+    @Inject
+    lateinit var cookieJar: CommonsCookieJar
+
+    @Inject
+    lateinit var customOkHttpNetworkFetcher: CustomOkHttpNetworkFetcher
+
+    var languageLookUpTable: AppLanguageLookUpTable? = null
+        private set
+
+    @Inject
+    lateinit var contributionDao: ContributionDao
+
+    /**
+     * Used to declare and initialize various components and dependencies
+     */
+    override fun onCreate() {
+        super.onCreate()
+
+        instance = this
+        init(this)
+
+        ApplicationlessInjection
+            .getInstance(this)
+            .commonsApplicationComponent
+            .inject(this)
+
+        initTimber()
+
+        if (!defaultPrefs.getBoolean("has_user_manually_removed_location")) {
+            var defaultExifTagsSet = defaultPrefs.getStringSet(Prefs.MANAGED_EXIF_TAGS)
+            if (null == defaultExifTagsSet) {
+                defaultExifTagsSet = HashSet()
+            }
+            defaultExifTagsSet.add(getString(R.string.exif_tag_location))
+            defaultPrefs.putStringSet(Prefs.MANAGED_EXIF_TAGS, defaultExifTagsSet)
+        }
+
+        //        Set DownsampleEnabled to True to downsample the image in case it's heavy
+        val config = ImagePipelineConfig.newBuilder(this)
+            .setNetworkFetcher(customOkHttpNetworkFetcher)
+            .setDownsampleEnabled(true)
+            .build()
+        try {
+            Fresco.initialize(this, config)
+        } catch (e: Exception) {
+            Timber.e(e)
+            // TODO: Remove when we're able to initialize Fresco in test builds.
+        }
+
+        createNotificationChannel(this)
+
+        languageLookUpTable = AppLanguageLookUpTable(this)
+
+        // This handler will catch exceptions thrown from Observables after they are disposed,
+        // or from Observables that are (deliberately or not) missing an onError handler.
+        RxJavaPlugins.setErrorHandler(Functions.emptyConsumer())
+
+        // Fire progress callbacks for every 3% of uploaded content
+        System.setProperty("in.yuvi.http.fluent.PROGRESS_TRIGGER_THRESHOLD", "3.0")
+    }
+
+    /**
+     * Plants debug and file logging tree. Timber lets you plant your own logging trees.
+     */
+    private fun initTimber() {
+        val isBeta = isBetaFlavour
+        val logFileName =
+            if (isBeta) "CommonsBetaAppLogs" else "CommonsAppLogs"
+        val logDirectory = LogUtils.getLogDirectory()
+        //Delete stale logs if they have exceeded the specified size
+        deleteStaleLogs(logFileName, logDirectory)
+
+        val tree = FileLoggingTree(
+            Log.VERBOSE,
+            logFileName,
+            logDirectory,
+            1000,
+            fileLoggingThreadPool
+        )
+
+        Timber.plant(tree)
+        Timber.plant(DebugTree())
+    }
+
+    /**
+     * Deletes the logs zip file at the specified directory and file locations specified in the
+     * params
+     *
+     * @param logFileName
+     * @param logDirectory
+     */
+    private fun deleteStaleLogs(logFileName: String, logDirectory: String) {
+        try {
+            val file = File("$logDirectory/zip/$logFileName.zip")
+            if (file.exists() && file.totalSpace > 1000000) { // In Kbs
+                file.delete()
+            }
+        } catch (e: Exception) {
+            Timber.e(e)
+        }
+    }
+
+    private val fileLoggingThreadPool: ThreadPoolService
+        get() = ThreadPoolService.Builder("file-logging-thread")
+            .setPriority(Process.THREAD_PRIORITY_LOWEST)
+            .setPoolSize(1)
+            .setExceptionHandler(BackgroundPoolExceptionHandler())
+            .build()
+
+    val userAgent: String
+        get() = ("Commons/" + this.getVersionNameWithSha()
+                + " (https://mediawiki.org/wiki/Apps/Commons) Android/" + Build.VERSION.RELEASE)
+
+    /**
+     * clears data of current application
+     *
+     * @param context        Application context
+     * @param logoutListener Implementation of interface LogoutListener
+     */
+    @SuppressLint("CheckResult")
+    fun clearApplicationData(context: Context, logoutListener: LogoutListener) {
+        val cacheDirectory = context.cacheDir
+        val applicationDirectory = File(cacheDirectory.parent)
+        if (applicationDirectory.exists()) {
+            val fileNames = applicationDirectory.list()
+            for (fileName in fileNames) {
+                if (fileName != "lib") {
+                    FileUtils.deleteFile(File(applicationDirectory, fileName))
+                }
+            }
+        }
+
+        sessionManager.logout()
+            .andThen(Completable.fromAction { cookieJar.clear() })
+            .andThen(Completable.fromAction {
+                Timber.d("All accounts have been removed")
+                clearImageCache()
+                //TODO: fix preference manager
+                defaultPrefs.clearAll()
+                defaultPrefs.putBoolean("firstrun", false)
+                updateAllDatabases()
+            })
+            .subscribeOn(Schedulers.io())
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe({ logoutListener.onLogoutComplete() }, { t: Throwable? -> Timber.e(t) })
+    }
+
+    /**
+     * Clear all images cache held by Fresco
+     */
+    private fun clearImageCache() {
+        val imagePipeline = Fresco.getImagePipeline()
+        imagePipeline.clearCaches()
+    }
+
+    /**
+     * Deletes all tables and re-creates them.
+     */
+    private fun updateAllDatabases() {
+        dbOpenHelper.readableDatabase.close()
+        val db = dbOpenHelper.writableDatabase
+
+        CategoryDao.Table.onDelete(db)
+        dbOpenHelper.deleteTable(
+            db,
+            DBOpenHelper.CONTRIBUTIONS_TABLE
+        ) //Delete the contributions table in the existing db on older versions
+
+        dbOpenHelper.deleteTable(
+            db,
+            DBOpenHelper.BOOKMARKS_LOCATIONS
+        )
+
+        try {
+            contributionDao.deleteAll()
+        } catch (e: SQLiteException) {
+            Timber.e(e)
+        }
+        BookmarksTable.onDelete(db)
+        BookmarkItemsTable.onDelete(db)
+    }
+
+
+    /**
+     * Interface used to get log-out events
+     */
+    interface LogoutListener {
+        fun onLogoutComplete()
+    }
+
+    /**
+     * This listener is responsible for handling post-logout actions, specifically invoking the LoginActivity
+     * with relevant intent parameters. It does not perform the actual logout operation.
+     */
+    open class BaseLogoutListener : LogoutListener {
+        var ctx: Context
+        var loginMessage: String? = null
+        var userName: String? = null
+
+        /**
+         * Constructor for BaseLogoutListener.
+         *
+         * @param ctx Application context
+         */
+        constructor(ctx: Context) {
+            this.ctx = ctx
+        }
+
+        /**
+         * Constructor for BaseLogoutListener
+         *
+         * @param ctx           The application context, used for invoking the LoginActivity and passing relevant intent parameters as part of the post-logout process.
+         * @param loginMessage  Message to be displayed on the login page
+         * @param loginUsername Username to be pre-filled on the login page
+         */
+        constructor(
+            ctx: Context, loginMessage: String?,
+            loginUsername: String?
+        ) {
+            this.ctx = ctx
+            this.loginMessage = loginMessage
+            this.userName = loginUsername
+        }
+
+        override fun onLogoutComplete() {
+            Timber.d("Logout complete callback received.")
+            val loginIntent = Intent(ctx, LoginActivity::class.java)
+            loginIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+
+            if (loginMessage != null) {
+                loginIntent.putExtra(LOGIN_MESSAGE_INTENT_KEY, loginMessage)
+            }
+            if (userName != null) {
+                loginIntent.putExtra(LOGIN_USERNAME_INTENT_KEY, userName)
+            }
+
+            ctx.startActivity(loginIntent)
+        }
+    }
+
+    /**
+     * This class is an extension of BaseLogoutListener, providing additional functionality or customization
+     * for the logout process. It includes specific actions to be taken during logout, such as handling redirection to the login screen.
+     */
+    class ActivityLogoutListener : BaseLogoutListener {
+        var activity: Activity
+
+
+        /**
+         * Constructor for ActivityLogoutListener.
+         *
+         * @param activity The activity context from which the logout is initiated. Used to perform actions such as finishing the activity.
+         * @param ctx           The application context, used for invoking the LoginActivity and passing relevant intent parameters as part of the post-logout process.
+         */
+        constructor(activity: Activity, ctx: Context) : super(ctx) {
+            this.activity = activity
+        }
+
+        /**
+         * Constructor for ActivityLogoutListener with additional parameters for the login screen.
+         *
+         * @param activity      The activity context from which the logout is initiated. Used to perform actions such as finishing the activity.
+         * @param ctx           The application context, used for invoking the LoginActivity and passing relevant intent parameters as part of the post-logout process.
+         * @param loginMessage  Message to be displayed on the login page after logout.
+         * @param loginUsername Username to be pre-filled on the login page after logout.
+         */
+        constructor(
+            activity: Activity, ctx: Context?,
+            loginMessage: String?, loginUsername: String?
+        ) : super(activity, loginMessage, loginUsername) {
+            this.activity = activity
+        }
+
+        override fun onLogoutComplete() {
+            super.onLogoutComplete()
+            activity.finish()
+        }
+    }
+
+    companion object {
+
+        const val LOGIN_MESSAGE_INTENT_KEY: String = "loginMessage"
+        const val LOGIN_USERNAME_INTENT_KEY: String = "loginUsername"
+
+        const val IS_LIMITED_CONNECTION_MODE_ENABLED: String = "is_limited_connection_mode_enabled"
+
+        /**
+         * Constants begin
+         */
+        const val OPEN_APPLICATION_DETAIL_SETTINGS: Int = 1001
+
+        const val DEFAULT_EDIT_SUMMARY: String = "Uploaded using [[COM:MOA|Commons Mobile App]]"
+
+        const val FEEDBACK_EMAIL: String = "commons-app-android@googlegroups.com"
+
+        const val FEEDBACK_EMAIL_SUBJECT: String = "Commons Android App Feedback"
+
+        const val REPORT_EMAIL: String = "commons-app-android-private@googlegroups.com"
+
+        const val REPORT_EMAIL_SUBJECT: String = "Report a violation"
+
+        const val NOTIFICATION_CHANNEL_ID_ALL: String = "CommonsNotificationAll"
+
+        const val FEEDBACK_EMAIL_TEMPLATE_HEADER: String = "-- Technical information --"
+
+        /**
+         * Constants End
+         */
+
+        @JvmStatic
+        lateinit var instance: CommonsApplication
+            private set
+
+        @JvmField
+        var isPaused: Boolean = false
+
+        @JvmStatic
+        fun createNotificationChannel(context: Context) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                val manager = context
+                    .getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+                var channel = manager
+                    .getNotificationChannel(NOTIFICATION_CHANNEL_ID_ALL)
+                if (channel == null) {
+                    channel = NotificationChannel(
+                        NOTIFICATION_CHANNEL_ID_ALL,
+                        context.getString(R.string.notifications_channel_name_all),
+                        NotificationManager.IMPORTANCE_DEFAULT
+                    )
+                    manager.createNotificationChannel(channel)
+                }
+            }
+        }
+    }
+}
+

app/src/main/java/fr/free/nrw/commons/License.java

@@ -1,79 +0,0 @@
-package fr.free.nrw.commons;
-
-import androidx.annotation.Nullable;
-
-/**
- * represents Licence object
- */
-public class License {
-    private String key;
-    private String template;
-    private String url;
-    private String name;
-
-    /**
-     * Constructs a new instance of License.
-     *
-     * @param key       license key
-     * @param template  license template
-     * @param url       license URL
-     * @param name      licence name
-     *
-     * @throws RuntimeException if License.key or Licence.template is null
-     */
-    public License(String key, String template, String url, String name) {
-        if (key == null) {
-            throw new RuntimeException("License.key must not be null");
-        }
-        if (template == null) {
-            throw new RuntimeException("License.template must not be null");
-        }
-        this.key = key;
-        this.template = template;
-        this.url = url;
-        this.name = name;
-    }
-
-    /**
-     * Gets the license key.
-     * @return license key as a String.
-     */
-    public String getKey() {
-        return key;
-    }
-
-    /**
-     * Gets the license template.
-     * @return license template as a String.
-     */
-    public String getTemplate() {
-        return template;
-    }
-
-    /**
-     * Gets the license name. If name is null, return license key.
-     * @return license name as string. if name null, license key as String
-     */
-    public String getName() {
-        if (name == null) {
-            // hack
-            return getKey();
-        } else {
-            return name;
-        }
-    }
-
-    /**
-     * Gets the license URL
-     *
-     * @param language license language
-     * @return URL
-     */
-    public @Nullable String getUrl(String language) {
-        if (url == null) {
-            return null;
-        } else {
-            return url.replace("$lang", language);
-        }
-    }
-}

app/src/main/java/fr/free/nrw/commons/LocationPicker/LocationPicker.java

@@ -1,65 +0,0 @@
-package fr.free.nrw.commons.LocationPicker;
-
-import android.app.Activity;
-import android.content.Intent;
-import com.mapbox.mapboxsdk.camera.CameraPosition;
-
-/**
- * Helper class for starting the activity
- */
-public final class LocationPicker {
-
-    /**
-     * Getting camera position from the intent using constants
-     *
-     * @param data intent
-     * @return CameraPosition
-     */
-    public static CameraPosition getCameraPosition(final Intent data) {
-        return data.getParcelableExtra(LocationPickerConstants.MAP_CAMERA_POSITION);
-    }
-
-    public static class IntentBuilder {
-
-        private final Intent intent;
-
-        /**
-         * Creates a new builder that creates an intent to launch the place picker activity.
-         */
-        public IntentBuilder() {
-            intent = new Intent();
-        }
-
-        /**
-         * Gets and puts location in intent
-         * @param position CameraPosition
-         * @return LocationPicker.IntentBuilder
-         */
-        public LocationPicker.IntentBuilder defaultLocation(
-            final CameraPosition position) {
-          intent.putExtra(LocationPickerConstants.MAP_CAMERA_POSITION, position);
-          return this;
-        }
-
-        /**
-         * Gets and puts activity name in intent
-         * @param activity activity key
-         * @return LocationPicker.IntentBuilder
-         */
-        public LocationPicker.IntentBuilder activityKey(
-            final String activity) {
-          intent.putExtra(LocationPickerConstants.ACTIVITY_KEY, activity);
-          return this;
-        }
-
-        /**
-         * Gets and sets the activity
-         * @param activity Activity
-         * @return Intent
-         */
-       public Intent build(final Activity activity) {
-          intent.setClass(activity, LocationPickerActivity.class);
-          return intent;
-        }
-    }
-}

app/src/main/java/fr/free/nrw/commons/LocationPicker/LocationPickerActivity.java

@@ -1,554 +0,0 @@
-package fr.free.nrw.commons.LocationPicker;
-
-import static com.mapbox.mapboxsdk.style.layers.Property.NONE;
-import static com.mapbox.mapboxsdk.style.layers.Property.VISIBLE;
-import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconAllowOverlap;
-import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconIgnorePlacement;
-import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.iconImage;
-import static com.mapbox.mapboxsdk.style.layers.PropertyFactory.visibility;
-import static fr.free.nrw.commons.upload.mediaDetails.UploadMediaDetailFragment.LAST_LOCATION;
-import static fr.free.nrw.commons.upload.mediaDetails.UploadMediaDetailFragment.LAST_ZOOM;
-
-import android.content.Intent;
-import android.content.pm.PackageManager;
-import android.graphics.BitmapFactory;
-import android.location.Location;
-import android.os.Bundle;
-import android.text.Html;
-import android.text.method.LinkMovementMethod;
-import android.view.View;
-import android.view.Window;
-import android.view.animation.OvershootInterpolator;
-import android.widget.Button;
-import android.widget.ImageView;
-import android.widget.TextView;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.AppCompatTextView;
-import androidx.constraintlayout.widget.ConstraintLayout;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-import com.mapbox.geojson.Point;
-import com.mapbox.mapboxsdk.camera.CameraPosition;
-import com.mapbox.mapboxsdk.camera.CameraPosition.Builder;
-import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
-import com.mapbox.mapboxsdk.geometry.LatLng;
-import com.mapbox.mapboxsdk.location.LocationComponent;
-import com.mapbox.mapboxsdk.location.LocationComponentActivationOptions;
-import com.mapbox.mapboxsdk.location.engine.LocationEngineCallback;
-import com.mapbox.mapboxsdk.location.engine.LocationEngineResult;
-import com.mapbox.mapboxsdk.location.modes.CameraMode;
-import com.mapbox.mapboxsdk.location.modes.RenderMode;
-import com.mapbox.mapboxsdk.location.permissions.PermissionsManager;
-import com.mapbox.mapboxsdk.maps.MapView;
-import com.mapbox.mapboxsdk.maps.MapboxMap;
-import com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraIdleListener;
-import com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraMoveStartedListener;
-import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
-import com.mapbox.mapboxsdk.maps.Style;
-import com.mapbox.mapboxsdk.maps.UiSettings;
-import com.mapbox.mapboxsdk.style.layers.Layer;
-import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
-import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
-import fr.free.nrw.commons.MapStyle;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
-import fr.free.nrw.commons.filepicker.Constants;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import fr.free.nrw.commons.location.LocationPermissionsHelper;
-import fr.free.nrw.commons.location.LocationPermissionsHelper.Dialog;
-import fr.free.nrw.commons.location.LocationPermissionsHelper.LocationPermissionCallback;
-import fr.free.nrw.commons.location.LocationServiceManager;
-import fr.free.nrw.commons.theme.BaseActivity;
-import fr.free.nrw.commons.utils.SystemThemeUtils;
-import javax.inject.Inject;
-import javax.inject.Named;
-import org.jetbrains.annotations.NotNull;
-import timber.log.Timber;
-
-/**
- * Helps to pick location and return the result with an intent
- */
-public class LocationPickerActivity extends BaseActivity implements OnMapReadyCallback,
-    OnCameraMoveStartedListener, OnCameraIdleListener, Observer<CameraPosition>, LocationPermissionCallback {
-
-    /**
-     * DROPPED_MARKER_LAYER_ID : id for layer
-     */
-    private static final String DROPPED_MARKER_LAYER_ID = "DROPPED_MARKER_LAYER_ID";
-    /**
-     * cameraPosition : position of picker
-     */
-    private CameraPosition cameraPosition;
-    /**
-     * markerImage : picker image
-     */
-    private ImageView markerImage;
-    /**
-     * mapboxMap : map
-     */
-    private MapboxMap mapboxMap;
-    /**
-     * mapView : view of the map
-     */
-    private MapView mapView;
-    /**
-     * tvAttribution : credit
-     */
-    private AppCompatTextView tvAttribution;
-    /**
-     * activity : activity key
-     */
-    private String activity;
-    /**
-     * location : location
-     */
-    private Location location;
-    /**
-     * modifyLocationButton : button for start editing location
-     */
-    Button modifyLocationButton;
-    /**
-     * showInMapButton : button for showing in map
-     */
-    TextView showInMapButton;
-    /**
-     * placeSelectedButton : fab for selecting location
-     */
-    FloatingActionButton placeSelectedButton;
-    /**
-     * fabCenterOnLocation: button for center on location;
-     */
-    FloatingActionButton fabCenterOnLocation;
-    /**
-     * droppedMarkerLayer : Layer for static screen
-     */
-    private Layer droppedMarkerLayer;
-    /**
-     * shadow : imageview of shadow
-     */
-    private ImageView shadow;
-    /**
-     * largeToolbarText : textView of shadow
-     */
-    private TextView largeToolbarText;
-    /**
-     * smallToolbarText : textView of shadow
-     */
-    private TextView smallToolbarText;
-    /**
-     * applicationKvStore : for storing values
-     */
-    @Inject
-    @Named("default_preferences")
-    public
-    JsonKvStore applicationKvStore;
-    /**
-     * isDarkTheme: for keeping a track of the device theme and modifying the map theme accordingly
-     */
-    @Inject
-    SystemThemeUtils systemThemeUtils;
-    private boolean isDarkTheme;
-
-    @Inject
-    LocationServiceManager locationManager;
-
-    @Override
-    protected void onCreate(@Nullable final Bundle savedInstanceState) {
-        getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
-        super.onCreate(savedInstanceState);
-
-        isDarkTheme = systemThemeUtils.isDeviceInNightMode();
-
-        getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
-        final ActionBar actionBar = getSupportActionBar();
-        if (actionBar != null) {
-            actionBar.hide();
-        }
-        setContentView(R.layout.activity_location_picker);
-
-        if (savedInstanceState == null) {
-            cameraPosition = getIntent()
-                .getParcelableExtra(LocationPickerConstants.MAP_CAMERA_POSITION);
-            activity = getIntent().getStringExtra(LocationPickerConstants.ACTIVITY_KEY);
-        }
-
-        final LocationPickerViewModel viewModel = new ViewModelProvider(this)
-            .get(LocationPickerViewModel.class);
-        viewModel.getResult().observe(this, this);
-
-        bindViews();
-        addBackButtonListener();
-        addPlaceSelectedButton();
-        addCredits();
-        getToolbarUI();
-        addCenterOnGPSButton();
-
-        if ("UploadActivity".equals(activity)) {
-            placeSelectedButton.setVisibility(View.GONE);
-            modifyLocationButton.setVisibility(View.VISIBLE);
-            showInMapButton.setVisibility(View.VISIBLE);
-            largeToolbarText.setText(getResources().getString(R.string.image_location));
-            smallToolbarText.setText(getResources().
-                getString(R.string.check_whether_location_is_correct));
-            fabCenterOnLocation.setVisibility(View.GONE);
-        }
-
-        mapView.onCreate(savedInstanceState);
-        mapView.getMapAsync(this);
-    }
-
-    /**
-     * For showing credits
-     */
-    private void addCredits() {
-        tvAttribution.setText(Html.fromHtml(getString(R.string.map_attribution)));
-        tvAttribution.setMovementMethod(LinkMovementMethod.getInstance());
-    }
-
-    /**
-     * Clicking back button destroy locationPickerActivity
-     */
-    private void addBackButtonListener() {
-        final ImageView backButton = findViewById(R.id.maplibre_place_picker_toolbar_back_button);
-        backButton.setOnClickListener(view -> finish());
-    }
-
-    /**
-     * Binds mapView and location picker icon
-     */
-    private void bindViews() {
-        mapView = findViewById(R.id.map_view);
-        markerImage = findViewById(R.id.location_picker_image_view_marker);
-        tvAttribution = findViewById(R.id.tv_attribution);
-        modifyLocationButton = findViewById(R.id.modify_location);
-        showInMapButton = findViewById(R.id.show_in_map);
-        showInMapButton.setText(getResources().getString(R.string.show_in_map_app).toUpperCase());
-        shadow = findViewById(R.id.location_picker_image_view_shadow);
-    }
-
-    /**
-     * Binds the listeners
-     */
-    private void bindListeners() {
-        mapboxMap.addOnCameraMoveStartedListener(
-            this);
-        mapboxMap.addOnCameraIdleListener(
-            this);
-    }
-
-    /**
-     * Gets toolbar color
-     */
-    private void getToolbarUI() {
-        final ConstraintLayout toolbar = findViewById(R.id.location_picker_toolbar);
-        largeToolbarText = findViewById(R.id.location_picker_toolbar_primary_text_view);
-        smallToolbarText = findViewById(R.id.location_picker_toolbar_secondary_text_view);
-        toolbar.setBackgroundColor(getResources().getColor(R.color.primaryColor));
-    }
-
-    /**
-     * Takes action when map is ready to show
-     * @param mapboxMap map
-     */
-    @Override
-    public void onMapReady(final MapboxMap mapboxMap) {
-        this.mapboxMap = mapboxMap;
-        mapboxMap.setStyle(isDarkTheme ? MapStyle.DARK : MapStyle.STREETS, this::onStyleLoaded);
-    }
-
-    /**
-     * Initializes dropped marker and layer
-     * Handles camera position based on options
-     * Enables location components
-     *
-     * @param style style
-     */
-    private void onStyleLoaded(final Style style) {
-        if (modifyLocationButton.getVisibility() == View.VISIBLE) {
-            initDroppedMarker(style);
-            adjustCameraBasedOnOptions();
-            enableLocationComponent(style);
-            if (style.getLayer(DROPPED_MARKER_LAYER_ID) != null) {
-                final GeoJsonSource source = style.getSourceAs("dropped-marker-source-id");
-                if (source != null) {
-                    source.setGeoJson(Point.fromLngLat(cameraPosition.target.getLongitude(),
-                        cameraPosition.target.getLatitude()));
-                }
-                droppedMarkerLayer = style.getLayer(DROPPED_MARKER_LAYER_ID);
-                if (droppedMarkerLayer != null) {
-                    droppedMarkerLayer.setProperties(visibility(VISIBLE));
-                    markerImage.setVisibility(View.GONE);
-                    shadow.setVisibility(View.GONE);
-                }
-            }
-        } else {
-            adjustCameraBasedOnOptions();
-            enableLocationComponent(style);
-            bindListeners();
-        }
-
-        modifyLocationButton.setOnClickListener(v -> onClickModifyLocation());
-        showInMapButton.setOnClickListener(v -> showInMap());
-    }
-
-    /**
-     * Handles onclick event of modifyLocationButton
-     */
-    private void onClickModifyLocation() {
-        placeSelectedButton.setVisibility(View.VISIBLE);
-        modifyLocationButton.setVisibility(View.GONE);
-        showInMapButton.setVisibility(View.GONE);
-        droppedMarkerLayer.setProperties(visibility(NONE));
-        markerImage.setVisibility(View.VISIBLE);
-        shadow.setVisibility(View.VISIBLE);
-        largeToolbarText.setText(getResources().getString(R.string.choose_a_location));
-        smallToolbarText.setText(getResources().getString(R.string.pan_and_zoom_to_adjust));
-        bindListeners();
-        fabCenterOnLocation.setVisibility(View.VISIBLE);
-    }
-
-    /**
-     * Show the location in map app
-     */
-    public void showInMap(){
-        Utils.handleGeoCoordinates(this,
-            new fr.free.nrw.commons.location.LatLng(cameraPosition.target.getLatitude(),
-                cameraPosition.target.getLongitude(), 0.0f));
-    }
-
-    /**
-     * Initialize Dropped Marker and layer without showing
-     * @param loadedMapStyle style
-     */
-    private void initDroppedMarker(@NonNull final Style loadedMapStyle) {
-        // Add the marker image to map
-        loadedMapStyle.addImage("dropped-icon-image", BitmapFactory.decodeResource(
-            getResources(), R.drawable.map_default_map_marker));
-        loadedMapStyle.addSource(new GeoJsonSource("dropped-marker-source-id"));
-        loadedMapStyle.addLayer(new SymbolLayer(DROPPED_MARKER_LAYER_ID,
-            "dropped-marker-source-id").withProperties(
-            iconImage("dropped-icon-image"),
-            visibility(NONE),
-            iconAllowOverlap(true),
-            iconIgnorePlacement(true)
-        ));
-    }
-
-    /**
-     * move the location to the current media coordinates
-     */
-    private void adjustCameraBasedOnOptions() {
-        mapboxMap.moveCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
-    }
-
-    /**
-     * Enables location components
-     * @param loadedMapStyle Style
-     */
-    @SuppressWarnings( {"MissingPermission"})
-    private void enableLocationComponent(@NonNull final Style loadedMapStyle) {
-        final UiSettings uiSettings = mapboxMap.getUiSettings();
-        uiSettings.setAttributionEnabled(false);
-
-        // Check if permissions are enabled and if not request
-        if (PermissionsManager.areLocationPermissionsGranted(this)) {
-
-            // Get an instance of the component
-            final LocationComponent locationComponent = mapboxMap.getLocationComponent();
-
-            // Activate with options
-            locationComponent.activateLocationComponent(
-                LocationComponentActivationOptions.builder(this, loadedMapStyle).build());
-
-            // Enable to make component visible
-            locationComponent.setLocationComponentEnabled(true);
-
-            // Set the component's camera mode
-            locationComponent.setCameraMode(CameraMode.NONE);
-
-            // Set the component's render mode
-            locationComponent.setRenderMode(RenderMode.NORMAL);
-
-            // Get the component's location engine to receive user's last location
-            locationComponent.getLocationEngine().getLastLocation(
-                new LocationEngineCallback<LocationEngineResult>() {
-                    @Override
-                    public void onSuccess(LocationEngineResult result) {
-                        location = result.getLastLocation();
-                    }
-
-                    @Override
-                    public void onFailure(@NonNull Exception exception) {
-                    }
-                });
-
-
-        }
-    }
-
-    /**
-     * Acts on camera moving
-     * @param reason int
-     */
-    @Override
-    public void onCameraMoveStarted(final int reason) {
-        Timber.v("Map camera has begun moving.");
-        if (markerImage.getTranslationY() == 0) {
-            markerImage.animate().translationY(-75)
-                .setInterpolator(new OvershootInterpolator()).setDuration(250).start();
-        }
-    }
-
-    /**
-     * Acts on camera idle
-     */
-    @Override
-    public void onCameraIdle() {
-        Timber.v("Map camera is now idling.");
-        markerImage.animate().translationY(0)
-            .setInterpolator(new OvershootInterpolator()).setDuration(250).start();
-    }
-
-    /**
-     * Takes action on camera position
-     * @param position position of picker
-     */
-    @Override
-    public void onChanged(@Nullable CameraPosition position) {
-        if (position == null) {
-            position = new Builder()
-                .target(new LatLng(mapboxMap.getCameraPosition().target.getLatitude(),
-                    mapboxMap.getCameraPosition().target.getLongitude()))
-                .zoom(16).build();
-        }
-        cameraPosition = position;
-    }
-
-    /**
-     * Select the preferable location
-     */
-    private void addPlaceSelectedButton() {
-        placeSelectedButton = findViewById(R.id.location_chosen_button);
-        placeSelectedButton.setOnClickListener(view -> placeSelected());
-    }
-
-    /**
-     * Return the intent with required data
-     */
-    void placeSelected() {
-        if (activity.equals("NoLocationUploadActivity")) {
-            applicationKvStore.putString(LAST_LOCATION,
-                mapboxMap.getCameraPosition().target.getLatitude()
-                    + ","
-                    + mapboxMap.getCameraPosition().target.getLongitude());
-            applicationKvStore.putString(LAST_ZOOM, mapboxMap.getCameraPosition().zoom + "");
-        }
-        final Intent returningIntent = new Intent();
-        returningIntent.putExtra(LocationPickerConstants.MAP_CAMERA_POSITION,
-            mapboxMap.getCameraPosition());
-        setResult(AppCompatActivity.RESULT_OK, returningIntent);
-        finish();
-    }
-    /**
-     * Center the camera on the last saved location
-     */
-    private void addCenterOnGPSButton(){
-        fabCenterOnLocation = findViewById(R.id.center_on_gps);
-        fabCenterOnLocation.setOnClickListener(view -> getCenter());
-    }
-
-    /**
-     * Center the map at user's current location
-     */
-    private void getCenter() {
-        LocationPermissionsHelper.Dialog locationAccessDialog = new Dialog(
-            R.string.location_permission_title,
-            R.string.upload_map_location_access
-        );
-
-        LocationPermissionsHelper.Dialog locationOffDialog = new Dialog(
-            R.string.ask_to_turn_location_on,
-            R.string.upload_map_location_access
-        );
-        LocationPermissionsHelper locationPermissionsHelper = new LocationPermissionsHelper(
-            this, locationManager, this);
-        locationPermissionsHelper.handleLocationPermissions(locationAccessDialog, locationOffDialog);
-    }
-
-    @Override
-    public void onRequestPermissionsResult(final int requestCode, @NonNull final String[] permissions,
-        @NonNull final int[] grantResults) {
-        if (requestCode == Constants.RequestCodes.LOCATION && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-            onLocationPermissionGranted();
-        } else {
-            onLocationPermissionDenied("");
-        }
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        mapView.onStart();
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        mapView.onResume();
-    }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        mapView.onPause();
-    }
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        mapView.onStop();
-    }
-
-    @Override
-    protected void onSaveInstanceState(final @NotNull Bundle outState) {
-        super.onSaveInstanceState(outState);
-        mapView.onSaveInstanceState(outState);
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        mapView.onDestroy();
-    }
-
-    @Override
-    public void onLowMemory() {
-        super.onLowMemory();
-        mapView.onLowMemory();
-    }
-
-    @Override
-    public void onLocationPermissionDenied(String toastMessage) {
-        //do nothing
-    }
-
-    @Override
-    public void onLocationPermissionGranted() {
-        fr.free.nrw.commons.location.LatLng currLocation = locationManager.getLastLocation();
-        if (currLocation != null) {
-            final CameraPosition position;
-            position = new CameraPosition.Builder()
-                .target(new com.mapbox.mapboxsdk.geometry.LatLng(currLocation.getLatitude(),
-                    currLocation.getLongitude(), 0)) // Sets the new camera position
-                .zoom(mapboxMap.getCameraPosition().zoom) // Same zoom level
-                .build();
-
-            mapboxMap.animateCamera(CameraUpdateFactory.newCameraPosition(position), 1000);
-        }
-    }
-}

app/src/main/java/fr/free/nrw/commons/LocationPicker/LocationPickerConstants.java

@@ -1,19 +0,0 @@
-package fr.free.nrw.commons.LocationPicker;
-
-import com.mapbox.mapboxsdk.maps.Style;
-
-/**
- * Constants need for location picking
- */
-public final class LocationPickerConstants {
-
-    public static final String ACTIVITY_KEY
-        = "location.picker.activity";
-
-    public static final String MAP_CAMERA_POSITION
-        = "location.picker.cameraPosition";
-
-
-    private LocationPickerConstants() {
-    }
-}

app/src/main/java/fr/free/nrw/commons/LocationPicker/LocationPickerViewModel.java

@@ -1,63 +0,0 @@
-package fr.free.nrw.commons.LocationPicker;
-
-import android.app.Application;
-import androidx.annotation.NonNull;
-import androidx.lifecycle.AndroidViewModel;
-import androidx.lifecycle.MutableLiveData;
-import com.mapbox.mapboxsdk.camera.CameraPosition;
-import org.jetbrains.annotations.NotNull;
-import retrofit2.Call;
-import retrofit2.Callback;
-import retrofit2.Response;
-import timber.log.Timber;
-
-/**
- * Observes live camera position data
- */
-public class LocationPickerViewModel extends AndroidViewModel implements Callback<CameraPosition> {
-
-    /**
-     * Wrapping CameraPosition with MutableLiveData
-     */
-    private final MutableLiveData<CameraPosition> result = new MutableLiveData<>();
-
-    /**
-     * Constructor for this class
-     *
-     * @param application Application
-     */
-    public LocationPickerViewModel(@NonNull final Application application) {
-        super(application);
-    }
-
-    /**
-     * Responses on camera position changing
-     *
-     * @param call     Call<CameraPosition>
-     * @param response Response<CameraPosition>
-     */
-    @Override
-    public void onResponse(final @NotNull Call<CameraPosition> call,
-        final Response<CameraPosition> response) {
-        if (response.body() == null) {
-            result.setValue(null);
-            return;
-        }
-        result.setValue(response.body());
-    }
-
-    @Override
-    public void onFailure(final @NotNull Call<CameraPosition> call, final @NotNull Throwable t) {
-        Timber.e(t);
-    }
-
-    /**
-     * Gets live CameraPosition
-     *
-     * @return MutableLiveData<CameraPosition>
-     */
-    public MutableLiveData<CameraPosition> getResult() {
-        return result;
-    }
-
-}

app/src/main/java/fr/free/nrw/commons/MapController.java

@@ -1,30 +0,0 @@
-package fr.free.nrw.commons;
-
-import fr.free.nrw.commons.location.LatLng;
-import fr.free.nrw.commons.nearby.Place;
-import java.util.List;
-
-public abstract class MapController {
-
-    /**
-     * We pass this variable as a group of placeList and boundaryCoordinates
-     */
-    public class NearbyPlacesInfo {
-        public List<Place> placeList; // List of nearby places
-        public LatLng[] boundaryCoordinates; // Corners of nearby area
-        public LatLng curLatLng; // Current location when this places are populated
-        public LatLng searchLatLng; // Search location for finding this places
-        public List<Media> mediaList; // Search location for finding this places
-    }
-
-    /**
-     * We pass this variable as a group of placeList and boundaryCoordinates
-     */
-    public class ExplorePlacesInfo {
-        public List<Place> explorePlaceList; // List of nearby places
-        public LatLng[] boundaryCoordinates; // Corners of nearby area
-        public LatLng curLatLng; // Current location when this places are populated
-        public LatLng searchLatLng; // Search location for finding this places
-        public List<Media> mediaList; // Search location for finding this places
-    }
-}

app/src/main/java/fr/free/nrw/commons/MapController.kt

@@ -0,0 +1,46 @@
+package fr.free.nrw.commons
+
+import fr.free.nrw.commons.location.LatLng
+import fr.free.nrw.commons.nearby.Place
+
+abstract class MapController {
+    /**
+     * We pass this variable as a group of placeList and boundaryCoordinates
+     */
+    inner class NearbyPlacesInfo {
+        @JvmField
+        var placeList: List<Place> = emptyList() // List of nearby places
+
+        @JvmField
+        var boundaryCoordinates: Array<LatLng> = emptyArray() // Corners of nearby area
+
+        @JvmField
+        var currentLatLng: LatLng? = null // Current location when this places are populated
+
+        @JvmField
+        var searchLatLng: LatLng? = null // Search location for finding this places
+
+        @JvmField
+        var mediaList: List<Media>? = null // Search location for finding this places
+    }
+
+    /**
+     * We pass this variable as a group of placeList and boundaryCoordinates
+     */
+    inner class ExplorePlacesInfo {
+        @JvmField
+        var explorePlaceList: List<Place> = emptyList() // List of nearby places
+
+        @JvmField
+        var boundaryCoordinates: Array<LatLng> = emptyArray() // Corners of nearby area
+
+        @JvmField
+        var currentLatLng: LatLng? = null // Current location when this places are populated
+
+        @JvmField
+        var searchLatLng: LatLng? = null // Search location for finding this places
+
+        @JvmField
+        var mediaList: List<Media> = emptyList() // Search location for finding this places
+    }
+}

app/src/main/java/fr/free/nrw/commons/MapStyle.java

@@ -1,12 +0,0 @@
-package fr.free.nrw.commons;
-
-import com.mapbox.mapboxsdk.maps.Style;
-
-/**
- * Constants for various map styles
- */
-public final class MapStyle {
-    public static final String DARK = Style.getPredefinedStyle("Dark");
-    public static final String OUTDOORS = Style.getPredefinedStyle("Outdoors");
-    public static final String STREETS = Style.getPredefinedStyle("Streets");
-}

app/src/main/java/fr/free/nrw/commons/Media.kt

@@ -1,11 +1,15 @@
 package fr.free.nrw.commons
 
 import android.os.Parcelable
+import fr.free.nrw.commons.BuildConfig.COMMONS_URL
 import fr.free.nrw.commons.location.LatLng
-import kotlinx.android.parcel.Parcelize
+import fr.free.nrw.commons.wikidata.model.WikiSite
-import org.wikipedia.dataclient.mwapi.MwQueryPage
+import fr.free.nrw.commons.wikidata.model.page.PageTitle
-import org.wikipedia.page.PageTitle
+import kotlinx.parcelize.IgnoredOnParcel
-import java.util.*
+import kotlinx.parcelize.Parcelize
+import java.util.Date
+import java.util.Locale
+import java.util.UUID
 
 @Parcelize
 class Media constructor(
@@ -15,7 +19,6 @@ class Media constructor(
      */
     var pageId: String = UUID.randomUUID().toString(),
     var thumbUrl: String? = null,
-
     /**
      * Gets image URL
      * @return Image URL
@@ -27,16 +30,9 @@ class Media constructor(
      */
     var filename: String? = null,
     /**
-     * Gets the file description.
+     * The fallback description of the file, used if no other description is provided.
-     * @return file description as a string
-     */
-    // monolingual description on input...
-    /**
-     * Sets the file description.
-     * @param fallbackDescription the new description of the file
      */
     var fallbackDescription: String? = null,
-
     /**
      * Gets the upload date of the file.
      * Can be null.
@@ -44,28 +40,25 @@ class Media constructor(
      */
     var dateUploaded: Date? = null,
     /**
-     * Gets the license name of the file.
+     * The license name of the file.
-     * @return license as a String
-     */
-    /**
-     * Sets the license name of the file.
-     *
-     * @param license license name as a String
      */
     var license: String? = null,
+    /**
+     * The URL corresponding to the license.
+     */
     var licenseUrl: String? = null,
     /**
-     * Gets the name of the creator of the file.
+     * The name of the creator of the file.
-     * @return author name as a String
-     */
-    /**
-     * Sets the author name of the file.
-     * @param author creator name as a string
      */
     var author: String? = null,
-
+    /**
-    var user:String?=null,
+     * The username of the uploader.
-
+     */
+    var user: String? = null,
+    /**
+     * The full name of the file's creator, if different from username.
+     */
+    var creatorName: String? = null,
     /**
      * Gets the categories the file falls under.
      * @return file categories as an ArrayList of Strings
@@ -79,46 +72,111 @@ class Media constructor(
     var captions: Map<String, String> = emptyMap(),
     var descriptions: Map<String, String> = emptyMap(),
     var depictionIds: List<String> = emptyList(),
+    var creatorIds: List<String> = emptyList(),
     /**
      * This field was added to find non-hidden categories
      * Stores the mapping of category title to hidden attribute
      * Example: "Mountains" => false, "CC-BY-SA-2.0" => true
      */
-    var categoriesHiddenStatus: Map<String, Boolean> = emptyMap()
+    var categoriesHiddenStatus: Map<String, Boolean> = emptyMap(),
 ) : Parcelable {
+    constructor(
+        captions: Map<String, String>,
+        categories: List<String>?,
+        filename: String?,
+        fallbackDescription: String?,
+        author: String?,
+        user: String?,
+    ) : this(
+        filename = filename,
+        fallbackDescription = fallbackDescription,
+        dateUploaded = Date(),
+        author = author,
+        user = user,
+        categories = categories,
+        captions = captions,
+    )
 
     constructor(
         captions: Map<String, String>,
         categories: List<String>?,
         filename: String?,
         fallbackDescription: String?,
-        author: String?, user:String?
+        author: String?,
+        user: String?,
+        dateUploaded: Date? = Date(),
+        license: String? = null,
+        licenseUrl: String? = null,
+        imageUrl: String? = null,
+        thumbUrl: String? = null,
+        coordinates: LatLng? = null,
+        descriptions: Map<String, String> = emptyMap(),
+        depictionIds: List<String> = emptyList(),
+        categoriesHiddenStatus: Map<String, Boolean> = emptyMap()
     ) : this(
+        pageId = UUID.randomUUID().toString(),
         filename = filename,
         fallbackDescription = fallbackDescription,
-        dateUploaded = Date(),
+        dateUploaded = dateUploaded,
         author = author,
-        user=user,
+        user = user,
         categories = categories,
-        captions = captions
+        captions = captions,
+        license = license,
+        licenseUrl = licenseUrl,
+        imageUrl = imageUrl,
+        thumbUrl = thumbUrl,
+        coordinates = coordinates,
+        descriptions = descriptions,
+        depictionIds = depictionIds,
+        categoriesHiddenStatus = categoriesHiddenStatus
     )
 
+    /**
+     * Returns Author if it's not null or empty, otherwise
+     * returns user
+     * @return Author or User
+     */
+    @Deprecated("Use user for uploader username. Use attributedAuthor() for attribution. Note that the uploader may not be the creator/author.")
+    fun getAuthorOrUser(): String? {
+        return if (!author.isNullOrEmpty()) {
+            author
+        } else{
+            user
+        }
+    }
+
+    /**
+     * Returns author if it's not null or empty, otherwise
+     * returns creator name
+     * @return name of author or creator
+     */
+    fun getAttributedAuthor(): String? {
+        return if (!author.isNullOrEmpty()) {
+            author
+        } else{
+            creatorName
+        }
+    }
+
     /**
      * Gets media display title
      * @return Media title
      */
     val displayTitle: String
         get() =
-            if (filename != null)
+            if (filename != null) {
                 pageTitle.displayTextWithoutNamespace.replaceFirst("[.][^.]+$".toRegex(), "")
-            else
+            } else {
                 ""
+            }
 
     /**
      * Gets file page title
      * @return New media page title
      */
-    val pageTitle: PageTitle get() = Utils.getPageTitle(filename!!)
+    val pageTitle: PageTitle
+        get() = PageTitle(filename!!, WikiSite(COMMONS_URL))
 
     /**
      * Returns wikicode to use the media file on a MediaWiki site
@@ -128,17 +186,21 @@ class Media constructor(
         get() = String.format("[[%s|thumb|%s]]", filename, mostRelevantCaption)
 
     val mostRelevantCaption: String
-        get() = captions[Locale.getDefault().language]
+        get() =
-            ?: captions.values.firstOrNull()
+            captions[Locale.getDefault().language]
-            ?: displayTitle
+                ?: captions.values.firstOrNull()
+                ?: displayTitle
 
     /**
      * Gets the categories the file falls under.
      * @return file categories as an ArrayList of Strings
      */
+    @IgnoredOnParcel
     var addedCategories: List<String>? = null
         // TODO added categories should be removed. It is added for a short fix. On category update,
         //  categories should be re-fetched instead
-        get() = field                     // getter
+        get() = field // getter
-        set(value) { field = value }      // setter
+        set(value) {
+            field = value
+        } // setter
 }

app/src/main/java/fr/free/nrw/commons/MediaDataExtractor.kt

@@ -1,9 +1,9 @@
 package fr.free.nrw.commons
 
 import androidx.core.text.HtmlCompat
-import fr.free.nrw.commons.media.PAGE_ID_PREFIX
+import fr.free.nrw.commons.media.IdAndLabels
-import fr.free.nrw.commons.media.IdAndCaptions
 import fr.free.nrw.commons.media.MediaClient
+import fr.free.nrw.commons.media.PAGE_ID_PREFIX
 import io.reactivex.Single
 import timber.log.Timber
 import javax.inject.Inject
@@ -17,42 +17,56 @@ import javax.inject.Singleton
  * to the media and may change due to editing.
  */
 @Singleton
-class MediaDataExtractor @Inject constructor(private val mediaClient: MediaClient) {
+class MediaDataExtractor
+    @Inject
+    constructor(
+        private val mediaClient: MediaClient,
+    ) {
+        fun fetchDepictionIdsAndLabels(media: Media) =
+                mediaClient
+                .getEntities(media.depictionIds)
+                .map {
+                    it
+                        .entities()
+                        .mapValues { entry -> entry.value.labels().mapValues { it.value.value() } }
+                }.map { it.map { (key, value) -> IdAndLabels(key, value) } }
+                .onErrorReturn { emptyList() }
 
-    fun fetchDepictionIdsAndLabels(media: Media) =
+        fun fetchCreatorIdsAndLabels(media: Media) =
-        mediaClient.getEntities(media.depictionIds)
+            mediaClient
-            .map {
+                .getEntities(media.creatorIds)
-                it.entities()
+                .map {
-                    .mapValues { entry -> entry.value.labels().mapValues { it.value.value() } }
+                    it
-            }
+                        .entities()
-            .map { it.map { (key, value) -> IdAndCaptions(key, value) } }
+                        .mapValues { entry -> entry.value.labels().mapValues { it.value.value() } }
-            .onErrorReturn { emptyList() }
+                }.map { it.map { (key, value) -> IdAndLabels(key, value) } }
+                .onErrorReturn { emptyList() }
 
-    fun checkDeletionRequestExists(media: Media) =
+        fun checkDeletionRequestExists(media: Media) = mediaClient.checkPageExistsUsingTitle("Commons:Deletion_requests/" + media.filename)
-        mediaClient.checkPageExistsUsingTitle("Commons:Deletion_requests/" + media.filename)
 
-    fun fetchDiscussion(media: Media) =
+        fun fetchDiscussion(media: Media) =
-        mediaClient.getPageHtml(media.filename!!.replace("File", "File talk"))
+            mediaClient
-            .map { HtmlCompat.fromHtml(it, HtmlCompat.FROM_HTML_MODE_LEGACY).toString() }
+                .getPageHtml(media.filename!!.replace("File", "File talk"))
-            .onErrorReturn {
+                .map { HtmlCompat.fromHtml(it, HtmlCompat.FROM_HTML_MODE_LEGACY).toString() }
-                Timber.d("Error occurred while fetching discussion")
+                .onErrorReturn {
-                ""
+                    Timber.d("Error occurred while fetching discussion")
-            }
+                    ""
+                }
 
-    fun refresh(media: Media): Single<Media> {
+        fun refresh(media: Media): Single<Media> =
-        return Single.ambArray(
+            Single.ambArray(
-            mediaClient.getMediaById(PAGE_ID_PREFIX + media.pageId)
+                mediaClient
-                .onErrorResumeNext { Single.never() },
+                    .getMediaById(PAGE_ID_PREFIX + media.pageId)
-            mediaClient.getMedia(media.filename)
+                    .onErrorResumeNext { Single.never() },
-                .onErrorResumeNext { Single.never() }
+                mediaClient
-        )
+                    .getMediaSuppressingErrors(media.filename)
+                    .onErrorResumeNext { Single.never() },
+            )
 
+        fun getHtmlOfPage(title: String) = mediaClient.getPageHtml(title)
+
+        /**
+         * Fetches wikitext from mediaClient
+         */
+        fun getCurrentWikiText(title: String) = mediaClient.getCurrentWikiText(title)
     }
-
-    fun getHtmlOfPage(title: String) = mediaClient.getPageHtml(title);
-
-    /**
-     * Fetches wikitext from mediaClient
-     */
-    fun getCurrentWikiText(title: String) = mediaClient.getCurrentWikiText(title);
-}

app/src/main/java/fr/free/nrw/commons/MvpView.java

@@ -1,8 +0,0 @@
-package fr.free.nrw.commons;
-
-/**
- * Base interface for all the views
- */
-public interface MvpView {
-    void showMessage(String message);
-}

app/src/main/java/fr/free/nrw/commons/OkHttpConnectionFactory.java

@@ -1,114 +0,0 @@
-package fr.free.nrw.commons;
-
-import androidx.annotation.NonNull;
-import java.io.File;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-import okhttp3.Cache;
-import okhttp3.Interceptor;
-import okhttp3.OkHttpClient;
-import okhttp3.Request;
-import okhttp3.Response;
-import okhttp3.ResponseBody;
-import okhttp3.logging.HttpLoggingInterceptor;
-import okhttp3.logging.HttpLoggingInterceptor.Level;
-import org.wikipedia.dataclient.SharedPreferenceCookieManager;
-import org.wikipedia.dataclient.okhttp.HttpStatusException;
-import timber.log.Timber;
-
-public final class OkHttpConnectionFactory {
-    private static final String CACHE_DIR_NAME = "okhttp-cache";
-    private static final long NET_CACHE_SIZE = 64 * 1024 * 1024;
-    @NonNull private static final Cache NET_CACHE = new Cache(new File(CommonsApplication.getInstance().getCacheDir(),
-            CACHE_DIR_NAME), NET_CACHE_SIZE);
-
-    @NonNull
-    private static final OkHttpClient CLIENT = createClient();
-
-    @NonNull public static OkHttpClient getClient() {
-        return CLIENT;
-    }
-
-    @NonNull
-    private static OkHttpClient createClient() {
-        return new OkHttpClient.Builder()
-                .cookieJar(SharedPreferenceCookieManager.getInstance())
-                .cache(NET_CACHE)
-                .connectTimeout(120, TimeUnit.SECONDS)
-                .writeTimeout(120, TimeUnit.SECONDS)
-                .readTimeout(120, TimeUnit.SECONDS)
-                .addInterceptor(getLoggingInterceptor())
-                .addInterceptor(new UnsuccessfulResponseInterceptor())
-                .addInterceptor(new CommonHeaderRequestInterceptor())
-                .build();
-    }
-
-    private static HttpLoggingInterceptor getLoggingInterceptor() {
-        final HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor()
-            .setLevel(Level.BASIC);
-
-        httpLoggingInterceptor.redactHeader("Authorization");
-        httpLoggingInterceptor.redactHeader("Cookie");
-
-        return httpLoggingInterceptor;
-    }
-
-    private static class CommonHeaderRequestInterceptor implements Interceptor {
-
-        @Override
-        @NonNull
-        public Response intercept(@NonNull final Chain chain) throws IOException {
-            final Request request = chain.request().newBuilder()
-                    .header("User-Agent", CommonsApplication.getInstance().getUserAgent())
-                    .build();
-            return chain.proceed(request);
-        }
-    }
-
-    public static class UnsuccessfulResponseInterceptor implements Interceptor {
-        private static final List<String> DO_NOT_INTERCEPT = Collections.singletonList(
-            "api.php?format=json&formatversion=2&errorformat=plaintext&action=upload&ignorewarnings=1");
-
-        private static final String ERRORS_PREFIX = "{\"error";
-
-        @Override
-        @NonNull
-        public Response intercept(@NonNull final Chain chain) throws IOException {
-            final Response rsp = chain.proceed(chain.request());
-
-            // Do not intercept certain requests and let the caller handle the errors
-            if(isExcludedUrl(chain.request())) {
-                return rsp;
-            }
-            if (rsp.isSuccessful()) {
-                try (final ResponseBody responseBody = rsp.peekBody(ERRORS_PREFIX.length())) {
-                    if (ERRORS_PREFIX.equals(responseBody.string())) {
-                        try (final ResponseBody body = rsp.body()) {
-                            throw new IOException(body.string());
-                        }
-                    }
-                } catch (final IOException e) {
-                    Timber.e(e);
-                }
-                return rsp;
-            }
-            throw new HttpStatusException(rsp);
-        }
-
-        private boolean isExcludedUrl(final Request request) {
-            final String requestUrl = request.url().toString();
-            for(final String url: DO_NOT_INTERCEPT) {
-                if(requestUrl.contains(url)) {
-                    return true;
-                }
-            }
-            return false;
-        }
-    }
-
-    private OkHttpConnectionFactory() {
-    }
-}

app/src/main/java/fr/free/nrw/commons/OkHttpConnectionFactory.kt

@@ -0,0 +1,135 @@
+package fr.free.nrw.commons
+
+import androidx.annotation.VisibleForTesting
+import fr.free.nrw.commons.wikidata.GsonUtil
+import fr.free.nrw.commons.wikidata.cookies.CommonsCookieJar
+import fr.free.nrw.commons.wikidata.mwapi.MwErrorResponse
+import fr.free.nrw.commons.wikidata.mwapi.MwIOException
+import fr.free.nrw.commons.wikidata.mwapi.MwLegacyServiceError
+import okhttp3.Cache
+import okhttp3.Interceptor
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import okhttp3.logging.HttpLoggingInterceptor
+import timber.log.Timber
+import java.io.File
+import java.io.IOException
+import java.util.concurrent.TimeUnit
+
+object OkHttpConnectionFactory {
+    private const val CACHE_DIR_NAME = "okhttp-cache"
+    private const val NET_CACHE_SIZE = (64 * 1024 * 1024).toLong()
+
+    @VisibleForTesting
+    var CLIENT: OkHttpClient? = null
+
+    fun getClient(cookieJar: CommonsCookieJar): OkHttpClient {
+        if (CLIENT == null) {
+            CLIENT = createClient(cookieJar)
+        }
+        return CLIENT!!
+    }
+
+    private fun createClient(cookieJar: CommonsCookieJar): OkHttpClient {
+        return OkHttpClient.Builder()
+            .cookieJar(cookieJar)
+            .cache(
+                if (CommonsApplication.instance != null) Cache(
+                    File(CommonsApplication.instance.cacheDir, CACHE_DIR_NAME),
+                    NET_CACHE_SIZE
+                ) else null
+            )
+            .connectTimeout(120, TimeUnit.SECONDS)
+            .writeTimeout(120, TimeUnit.SECONDS)
+            .readTimeout(120, TimeUnit.SECONDS)
+            .addInterceptor(HttpLoggingInterceptor().apply {
+                setLevel(HttpLoggingInterceptor.Level.BASIC)
+                redactHeader("Authorization")
+                redactHeader("Cookie")
+            })
+            .addInterceptor(UnsuccessfulResponseInterceptor())
+            .addInterceptor(CommonHeaderRequestInterceptor())
+            .build()
+    }
+}
+
+class CommonHeaderRequestInterceptor : Interceptor {
+    @Throws(IOException::class)
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain.request().newBuilder()
+            .header("User-Agent", CommonsApplication.instance.userAgent)
+            .build()
+        return chain.proceed(request)
+    }
+}
+
+private const val SUPPRESS_ERROR_LOG = "x-commons-suppress-error-log"
+const val SUPPRESS_ERROR_LOG_HEADER: String = "$SUPPRESS_ERROR_LOG: true"
+
+private class UnsuccessfulResponseInterceptor : Interceptor {
+    @Throws(IOException::class)
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val rq = chain.request()
+
+        // If the request contains our special "suppress errors" header, make note of it
+        // but don't pass that on to the server.
+        val suppressErrors = rq.headers.names().contains(SUPPRESS_ERROR_LOG)
+        val request = rq.newBuilder()
+            .removeHeader(SUPPRESS_ERROR_LOG)
+            .build()
+
+        val rsp = chain.proceed(request)
+
+        // Do not intercept certain requests and let the caller handle the errors
+        if (isExcludedUrl(chain.request())) {
+            return rsp
+        }
+        if (rsp.isSuccessful) {
+            try {
+                rsp.peekBody(ERRORS_PREFIX.length.toLong()).use { responseBody ->
+                    if (ERRORS_PREFIX == responseBody.string()) {
+                        rsp.body.use { body ->
+                            val bodyString = body!!.string()
+
+                            throw MwIOException(
+                                "MediaWiki API returned error: $bodyString",
+                                GsonUtil.defaultGson.fromJson(
+                                    bodyString,
+                                    MwErrorResponse::class.java
+                                ).error!!,
+                            )
+                        }
+                    }
+                }
+            } catch (e: MwIOException) {
+                // Log the error as debug (and therefore, "expected") or at error level
+                if (suppressErrors) {
+                    Timber.d(e, "Suppressed (known / expected) error")
+                } else {
+                    Timber.e(e)
+                    throw e
+                }
+            }
+            return rsp
+        }
+        throw IOException("Unsuccessful response")
+    }
+
+    private fun isExcludedUrl(request: Request): Boolean {
+        val requestUrl = request.url.toString()
+        for (url in DO_NOT_INTERCEPT) {
+            if (requestUrl.contains(url)) {
+                return true
+            }
+        }
+        return false
+    }
+
+    companion object {
+        val DO_NOT_INTERCEPT = listOf(
+            "api.php?format=json&formatversion=2&errorformat=plaintext&action=upload&ignorewarnings=1"
+        )
+        const val ERRORS_PREFIX = "{\"error"
+    }
+}

app/src/main/java/fr/free/nrw/commons/Urls.kt

@@ -10,7 +10,9 @@ internal object Urls {
     const val FAQ_URL = "https://github.com/commons-app/commons-app-documentation/blob/master/android/Frequently-Asked-Questions.md"
     const val PLAY_STORE_PREFIX = "market://details?id="
     const val PLAY_STORE_URL_PREFIX = "https://play.google.com/store/apps/details?id="
-    const val TRANSLATE_WIKI_URL = "https://translatewiki.net/w/i.php?title=Special:Translate&group=commons-android-strings&filter=%21translated&action=translate&language="
+    const val TRANSLATE_WIKI_URL =
+        "https://translatewiki.net/w/i.php?title=Special:Translate" +
+            "&group=commons-android-strings&filter=%21translated&action=translate&language="
     const val FACEBOOK_WEB_URL = "https://www.facebook.com/1921335171459985"
     const val FACEBOOK_APP_URL = "fb://page/1921335171459985"
     const val FACEBOOK_PACKAGE_NAME = "com.facebook.katana"

app/src/main/java/fr/free/nrw/commons/Utils.java

@@ -1,261 +0,0 @@
-package fr.free.nrw.commons;
-
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.net.Uri;
-import android.text.SpannableString;
-import android.text.style.UnderlineSpan;
-import android.view.View;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.browser.customtabs.CustomTabColorSchemeParams;
-import androidx.browser.customtabs.CustomTabsIntent;
-import androidx.core.content.ContextCompat;
-
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import java.util.Calendar;
-import java.util.Date;
-import org.wikipedia.dataclient.WikiSite;
-import org.wikipedia.page.PageTitle;
-
-import java.util.Locale;
-import java.util.regex.Pattern;
-
-import fr.free.nrw.commons.location.LatLng;
-import fr.free.nrw.commons.settings.Prefs;
-import fr.free.nrw.commons.utils.ViewUtil;
-import timber.log.Timber;
-
-import static android.widget.Toast.LENGTH_SHORT;
-import static fr.free.nrw.commons.campaigns.CampaignView.CAMPAIGNS_DEFAULT_PREFERENCE;
-
-public class Utils {
-
-    public static PageTitle getPageTitle(@NonNull String title) {
-        return new PageTitle(title, new WikiSite(BuildConfig.COMMONS_URL));
-    }
-
-    /**
-     * Generates licence name with given ID
-     * @param license License ID
-     * @return Name of license
-     */
-    public static int licenseNameFor(String license) {
-        switch (license) {
-            case Prefs.Licenses.CC_BY_3:
-                return R.string.license_name_cc_by;
-            case Prefs.Licenses.CC_BY_4:
-                return R.string.license_name_cc_by_four;
-            case Prefs.Licenses.CC_BY_SA_3:
-                return R.string.license_name_cc_by_sa;
-            case Prefs.Licenses.CC_BY_SA_4:
-                return R.string.license_name_cc_by_sa_four;
-            case Prefs.Licenses.CC0:
-                return R.string.license_name_cc0;
-        }
-        throw new IllegalStateException("Unrecognized license value: " + license);
-    }
-
-    /**
-     * Generates license url with given ID
-     * @param license License ID
-     * @return Url of license
-     */
-
-
-    @NonNull
-    public static String licenseUrlFor(String license) {
-        switch (license) {
-            case Prefs.Licenses.CC_BY_3:
-                return "https://creativecommons.org/licenses/by/3.0/";
-            case Prefs.Licenses.CC_BY_4:
-                return "https://creativecommons.org/licenses/by/4.0/";
-            case Prefs.Licenses.CC_BY_SA_3:
-                return "https://creativecommons.org/licenses/by-sa/3.0/";
-            case Prefs.Licenses.CC_BY_SA_4:
-                return "https://creativecommons.org/licenses/by-sa/4.0/";
-            case Prefs.Licenses.CC0:
-                return "https://creativecommons.org/publicdomain/zero/1.0/";
-            default:
-                throw new IllegalStateException("Unrecognized license value: " + license);
-        }
-    }
-
-    /**
-     * Adds extension to filename. Converts to .jpg if system provides .jpeg, adds .jpg if no extension detected
-     * @param title File name
-     * @param extension Correct extension
-     * @return File with correct extension
-     */
-    public static String fixExtension(String title, String extension) {
-        Pattern jpegPattern = Pattern.compile("\\.jpeg$", Pattern.CASE_INSENSITIVE);
-
-        // People are used to ".jpg" more than ".jpeg" which the system gives us.
-        if (extension != null && extension.toLowerCase(Locale.ENGLISH).equals("jpeg")) {
-            extension = "jpg";
-        }
-        title = jpegPattern.matcher(title).replaceFirst(".jpg");
-        if (extension != null && !title.toLowerCase(Locale.getDefault())
-                .endsWith("." + extension.toLowerCase(Locale.ENGLISH))) {
-            title += "." + extension;
-        }
-
-        // If extension is still null, make it jpg. (Hotfix for https://github.com/commons-app/apps-android-commons/issues/228)
-        // If title has an extension in it, if won't be true
-        if (extension == null && title.lastIndexOf(".")<=0) {
-           extension = "jpg";
-           title += "." + extension;
-        }
-
-        return title;
-    }
-
-    /**
-     * Launches intent to rate app
-     * @param context
-     */
-    public static void rateApp(Context context) {
-        final String appPackageName = context.getPackageName();
-        try {
-            context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(Urls.PLAY_STORE_PREFIX + appPackageName)));
-        }
-        catch (android.content.ActivityNotFoundException anfe) {
-            handleWebUrl(context, Uri.parse(Urls.PLAY_STORE_URL_PREFIX + appPackageName));
-        }
-    }
-
-    /**
-     * Opens Custom Tab Activity with in-app browser for the specified URL.
-     * Launches intent for web URL
-     * @param context
-     * @param url
-     */
-    public static void handleWebUrl(Context context, Uri url) {
-        Timber.d("Launching web url %s", url.toString());
-        Intent browserIntent = new Intent(Intent.ACTION_VIEW, url);
-        if (browserIntent.resolveActivity(context.getPackageManager()) == null) {
-            Toast toast = Toast.makeText(context, context.getString(R.string.no_web_browser), LENGTH_SHORT);
-            toast.show();
-            return;
-        }
-
-        final CustomTabColorSchemeParams color = new CustomTabColorSchemeParams.Builder()
-            .setToolbarColor(ContextCompat.getColor(context, R.color.primaryColor))
-            .setSecondaryToolbarColor(ContextCompat.getColor(context, R.color.primaryDarkColor))
-            .build();
-
-        CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
-        builder.setDefaultColorSchemeParams(color);
-        builder.setExitAnimations(context, android.R.anim.slide_in_left, android.R.anim.slide_out_right);
-        CustomTabsIntent customTabsIntent = builder.build();
-        // Clear previous browser tasks, so that back/exit buttons work as intended.
-        customTabsIntent.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
-        customTabsIntent.launchUrl(context, url);
-    }
-
-    /**
-     * Util function to handle geo coordinates
-     * It no longer depends on google maps and any app capable of handling the map intent can handle it
-     * @param context
-     * @param latLng
-     */
-    public static void handleGeoCoordinates(Context context, LatLng latLng) {
-        Intent mapIntent = new Intent(Intent.ACTION_VIEW, latLng.getGmmIntentUri());
-        if (mapIntent.resolveActivity(context.getPackageManager()) != null) {
-            context.startActivity(mapIntent);
-        } else {
-            ViewUtil.showShortToast(context, context.getString(R.string.map_application_missing));
-        }
-    }
-
-    /**
-     * To take screenshot of the screen and return it in Bitmap format
-     *
-     * @param view
-     * @return
-     */
-    public static Bitmap getScreenShot(View view) {
-        View screenView = view.getRootView();
-        screenView.setDrawingCacheEnabled(true);
-        Bitmap drawingCache = screenView.getDrawingCache();
-        if (drawingCache != null) {
-            Bitmap bitmap = Bitmap.createBitmap(drawingCache);
-            screenView.setDrawingCacheEnabled(false);
-            return bitmap;
-        }
-        return null;
-    }
-
-    /*
-    *Copies the content to the clipboard
-    *
-    */
-    public static void copy(String label,String text, Context context){
-        ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
-        ClipData clip = ClipData.newPlainText(label, text);
-        clipboard.setPrimaryClip(clip);
-    }
-
-    /**
-     * This method sets underlined string text to a TextView
-     *
-     * @param textView TextView associated with string resource
-     * @param stringResourceName string resource name
-     * @param context
-     */
-    public static void setUnderlinedText(TextView textView, int stringResourceName, Context context) {
-        SpannableString content = new SpannableString(context.getString(stringResourceName));
-        content.setSpan(new UnderlineSpan(), 0, content.length(), 0);
-        textView.setText(content);
-    }
-
-    /**
-     * For now we are enabling the monuments only when the date lies between 1 Sept & 31 OCt
-     * @param date
-     * @return
-     */
-    public static boolean isMonumentsEnabled(final Date date) {
-        if (date.getMonth() == 8) {
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Util function to get the start date of wlm monument
-     * For this release we are hardcoding it to be 1st September
-     * @return
-     */
-    public static String getWLMStartDate() {
-        return "1 Sep";
-    }
-
-    /***
-     * Util function to get the end date of wlm monument
-     * For this release we are hardcoding it to be 31st October
-     * @return
-     */
-    public static String getWLMEndDate() {
-        return "30 Sep";
-    }
-
-    /***
-     * Function to get the current WLM year
-     * It increments at the start of September in line with the other WLM functions
-     * (No consideration of locales for now)
-     * @param calendar
-     * @return
-     */
-    public static int getWikiLovesMonumentsYear(Calendar calendar) {
-        int year = calendar.get(Calendar.YEAR);
-        if (calendar.get(Calendar.MONTH) < Calendar.SEPTEMBER) {
-            year -= 1;
-        }
-        return year;
-    }
-}

app/src/main/java/fr/free/nrw/commons/ViewHolder.java

@@ -1,7 +0,0 @@
-package fr.free.nrw.commons;
-
-import android.content.Context;
-
-public interface ViewHolder<T> {
-    void bindModel(Context context, T model);
-}

app/src/main/java/fr/free/nrw/commons/ViewPagerAdapter.java

@@ -1,57 +0,0 @@
-package fr.free.nrw.commons;
-
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentPagerAdapter;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * This adapter will be used to display fragments in a ViewPager
- */
-public class ViewPagerAdapter extends FragmentPagerAdapter {
-    private List<Fragment> fragmentList = new ArrayList<>();
-    private List<String> fragmentTitleList = new ArrayList<>();
-
-    public ViewPagerAdapter(FragmentManager manager) {
-        super(manager);
-    }
-
-    /**
-     * This method returns the fragment of the viewpager at a particular position
-     * @param position
-     */
-    @Override
-    public Fragment getItem(int position) {
-        return fragmentList.get(position);
-    }
-
-    /**
-     * This method returns the total number of fragments in the viewpager.
-     * @return size
-     */
-    @Override
-    public int getCount() {
-        return fragmentList.size();
-    }
-
-    /**
-     * This method sets the fragment and title list in the viewpager
-     * @param fragmentList List of all fragments to be displayed in the viewpager
-     * @param fragmentTitleList List of all titles of the fragments
-     */
-    public void setTabData(List<Fragment> fragmentList, List<String> fragmentTitleList) {
-        this.fragmentList = fragmentList;
-        this.fragmentTitleList = fragmentTitleList;
-    }
-
-    /**
-     * This method returns the title of the page at a particular position
-     * @param position
-     */
-    @Override
-    public CharSequence getPageTitle(int position) {
-        return fragmentTitleList.get(position);
-    }
-}

app/src/main/java/fr/free/nrw/commons/ViewPagerAdapter.kt

@@ -0,0 +1,44 @@
+package fr.free.nrw.commons
+
+import android.content.Context
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.FragmentPagerAdapter
+import java.util.Locale
+
+/**
+ * This adapter will be used to display fragments in a ViewPager
+ */
+class ViewPagerAdapter : FragmentPagerAdapter {
+    private val context: Context
+    private var fragmentList: List<Fragment> = emptyList()
+    private var fragmentTitleList: List<String> = emptyList()
+
+    constructor(context: Context, manager: FragmentManager) : super(manager) {
+        this.context = context
+    }
+
+    constructor(context: Context, manager: FragmentManager, behavior: Int) : super(manager, behavior) {
+        this.context = context
+    }
+
+    override fun getItem(position: Int): Fragment = fragmentList[position]
+
+    override fun getPageTitle(position: Int): CharSequence = fragmentTitleList[position]
+
+    override fun getCount(): Int = fragmentList.size
+
+    fun setTabs(vararg titlesToFragments: Pair<Int, Fragment>) {
+        // Enforce that every title must come from strings.xml and all will consistently be uppercase
+        fragmentTitleList = titlesToFragments.map {
+            context.getString(it.first).uppercase(Locale.ROOT)
+        }
+        fragmentList = titlesToFragments.map { it.second }
+    }
+
+    companion object {
+        // Convenience method for Java callers, can be removed when everything is migrated
+        @JvmStatic
+        fun pairOf(first: Int, second: Fragment) = first to second
+    }
+}

app/src/main/java/fr/free/nrw/commons/WelcomeActivity.java

@@ -1,108 +0,0 @@
-package fr.free.nrw.commons;
-
-import android.app.AlertDialog;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.View;
-import fr.free.nrw.commons.databinding.ActivityWelcomeBinding;
-import fr.free.nrw.commons.databinding.PopupForCopyrightBinding;
-import fr.free.nrw.commons.quiz.QuizActivity;
-import fr.free.nrw.commons.theme.BaseActivity;
-import fr.free.nrw.commons.utils.ConfigUtils;
-
-public class WelcomeActivity extends BaseActivity {
-
-    private ActivityWelcomeBinding binding;
-    private PopupForCopyrightBinding copyrightBinding;
-
-    private final WelcomePagerAdapter adapter = new WelcomePagerAdapter();
-    private boolean isQuiz;
-    private AlertDialog.Builder dialogBuilder;
-    private AlertDialog dialog;
-
-    /**
-     * Initialises exiting fields and dependencies
-     *
-     * @param savedInstanceState WelcomeActivity bundled data
-     */
-    @Override
-    public void onCreate(final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        binding = ActivityWelcomeBinding.inflate(getLayoutInflater());
-        final View view = binding.getRoot();
-        setContentView(view);
-
-        if (getIntent() != null) {
-            final Bundle bundle = getIntent().getExtras();
-            if (bundle != null) {
-                isQuiz = bundle.getBoolean("isQuiz");
-            }
-        } else {
-            isQuiz = false;
-        }
-
-        // Enable skip button if beta flavor
-        if (ConfigUtils.isBetaFlavour()) {
-            binding.finishTutorialButton.setVisibility(View.VISIBLE);
-
-            dialogBuilder = new AlertDialog.Builder(this);
-            copyrightBinding = PopupForCopyrightBinding.inflate(getLayoutInflater());
-            final View contactPopupView = copyrightBinding.getRoot();
-            dialogBuilder.setView(contactPopupView);
-            dialog = dialogBuilder.create();
-            dialog.show();
-
-            copyrightBinding.buttonOk.setOnClickListener(v -> dialog.dismiss());
-        }
-
-        binding.welcomePager.setAdapter(adapter);
-        binding.welcomePagerIndicator.setViewPager(binding.welcomePager);
-
-        binding.finishTutorialButton.setOnClickListener(v -> finishTutorial());
-
-    }
-
-    /**
-     * References WelcomePageAdapter to null before the activity is destroyed
-     */
-    @Override
-    public void onDestroy() {
-        if (isQuiz) {
-            final Intent i = new Intent(this, QuizActivity.class);
-            startActivity(i);
-        }
-        super.onDestroy();
-    }
-
-    /**
-     * Creates a way to change current activity to WelcomeActivity
-     *
-     * @param context Activity context
-     */
-    public static void startYourself(final Context context) {
-        final Intent welcomeIntent = new Intent(context, WelcomeActivity.class);
-        context.startActivity(welcomeIntent);
-    }
-
-    /**
-     * Override onBackPressed() to go to previous tutorial 'pages' if not on first page
-     */
-    @Override
-    public void onBackPressed() {
-        if (binding.welcomePager.getCurrentItem() != 0) {
-            binding.welcomePager.setCurrentItem(binding.welcomePager.getCurrentItem() - 1, true);
-        } else {
-            if (defaultKvStore.getBoolean("firstrun", true)) {
-                finishAffinity();
-            } else {
-                super.onBackPressed();
-            }
-        }
-    }
-
-    public void finishTutorial() {
-        defaultKvStore.putBoolean("firstrun", false);
-        finish();
-    }
-}

app/src/main/java/fr/free/nrw/commons/WelcomeActivity.kt

@@ -0,0 +1,80 @@
+package fr.free.nrw.commons
+
+import android.app.AlertDialog
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import fr.free.nrw.commons.databinding.ActivityWelcomeBinding
+import fr.free.nrw.commons.databinding.PopupForCopyrightBinding
+import fr.free.nrw.commons.quiz.QuizActivity
+import fr.free.nrw.commons.theme.BaseActivity
+import fr.free.nrw.commons.utils.applyEdgeToEdgeAllInsets
+import fr.free.nrw.commons.utils.ConfigUtils.isBetaFlavour
+
+class WelcomeActivity : BaseActivity() {
+    private var binding: ActivityWelcomeBinding? = null
+    private var isQuiz = false
+
+    /**
+     * Initialises exiting fields and dependencies
+     *
+     * @param savedInstanceState WelcomeActivity bundled data
+     */
+    public override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityWelcomeBinding.inflate(layoutInflater)
+        applyEdgeToEdgeAllInsets(binding!!.welcomePager.rootView)
+        setContentView(binding!!.root)
+
+        isQuiz = intent?.extras?.getBoolean("isQuiz", false) ?: false
+
+        // Enable skip button if beta flavor
+        if (isBetaFlavour) {
+            binding!!.finishTutorialButton.visibility = View.VISIBLE
+
+            val copyrightBinding = PopupForCopyrightBinding.inflate(layoutInflater)
+
+            val dialog = AlertDialog.Builder(this)
+                .setView(copyrightBinding.root)
+                .setCancelable(false)
+                .create()
+            dialog.show()
+
+            copyrightBinding.buttonOk.setOnClickListener { v: View? -> dialog.dismiss() }
+        }
+
+        val adapter = WelcomePagerAdapter()
+        binding!!.welcomePager.adapter = adapter
+        binding!!.welcomePagerIndicator.setViewPager(binding!!.welcomePager)
+        binding!!.finishTutorialButton.setOnClickListener { v: View? -> finishTutorial() }
+    }
+
+    public override fun onDestroy() {
+        if (isQuiz) {
+            startActivity(Intent(this, QuizActivity::class.java))
+        }
+        super.onDestroy()
+    }
+
+    override fun onBackPressed() {
+        if (binding!!.welcomePager.currentItem != 0) {
+            binding!!.welcomePager.setCurrentItem(binding!!.welcomePager.currentItem - 1, true)
+        } else {
+            if (defaultKvStore.getBoolean("firstrun", true)) {
+                finishAffinity()
+            } else {
+                super.onBackPressed()
+            }
+        }
+    }
+
+    fun finishTutorial() {
+        defaultKvStore.putBoolean("firstrun", false)
+        finish()
+    }
+}
+
+fun Context.startWelcome() {
+    startActivity(Intent(this, WelcomeActivity::class.java))
+}

app/src/main/java/fr/free/nrw/commons/WelcomePagerAdapter.java

@@ -1,75 +0,0 @@
-package fr.free.nrw.commons;
-
-import android.net.Uri;
-import android.text.Html;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.viewpager.widget.PagerAdapter;
-
-public class WelcomePagerAdapter extends PagerAdapter {
-    private static final int[] PAGE_LAYOUTS = new int[]{
-            R.layout.welcome_wikipedia,
-            R.layout.welcome_do_upload,
-            R.layout.welcome_dont_upload,
-            R.layout.welcome_image_example,
-            R.layout.welcome_final
-    };
-
-    /**
-     * Gets total number of layouts
-     * @return Number of layouts
-     */
-    @Override
-    public int getCount() {
-        return PAGE_LAYOUTS.length;
-    }
-
-    /**
-     * Compares given view with provided object
-     * @param view Adapter view
-     * @param object Adapter object
-     * @return Equality between view and object
-     */
-    @Override
-    public boolean isViewFromObject(View view, Object object) {
-        return (view == object);
-    }
-
-    @Override
-    public Object instantiateItem(ViewGroup container, int position) {
-        LayoutInflater inflater = LayoutInflater.from(container.getContext());
-        ViewGroup layout = (ViewGroup) inflater.inflate(PAGE_LAYOUTS[position], container, false);
-
-        // If final page
-        if (position == PAGE_LAYOUTS.length - 1) {
-            // Add link to more information
-            TextView moreInfo = layout.findViewById(R.id.welcomeInfo);
-            Utils.setUnderlinedText(moreInfo, R.string.welcome_help_button_text, container.getContext());
-            moreInfo.setOnClickListener(view -> Utils.handleWebUrl(
-                    container.getContext(),
-                    Uri.parse("https://commons.wikimedia.org/wiki/Help:Contents")
-            ));
-
-            // Handle click of finishTutorialButton ("YES!" button) inside layout
-            layout.findViewById(R.id.finishTutorialButton)
-                    .setOnClickListener(view -> ((WelcomeActivity) container.getContext()).finishTutorial());
-        }
-
-        container.addView(layout);
-        return layout;
-    }
-
-    /**
-     * Provides a way to remove an item from container
-     * @param container Adapter view group container
-     * @param position Index of item
-     * @param obj Adapter object
-     */
-    @Override
-    public void destroyItem(ViewGroup container, int position, Object obj) {
-        container.removeView((View) obj);
-    }
-}

app/src/main/java/fr/free/nrw/commons/WelcomePagerAdapter.kt

@@ -0,0 +1,70 @@
+package fr.free.nrw.commons
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.core.net.toUri
+import androidx.viewpager.widget.PagerAdapter
+import fr.free.nrw.commons.utils.UnderlineUtils.setUnderlinedText
+import fr.free.nrw.commons.utils.handleWebUrl
+
+class WelcomePagerAdapter : PagerAdapter() {
+    /**
+     * Gets total number of layouts
+     * @return Number of layouts
+     */
+    override fun getCount(): Int = PAGE_LAYOUTS.size
+
+    /**
+     * Compares given view with provided object
+     * @param view Adapter view
+     * @param obj Adapter object
+     * @return Equality between view and object
+     */
+    override fun isViewFromObject(view: View, obj: Any): Boolean = (view === obj)
+
+    /**
+     * Provides a way to remove an item from container
+     * @param container Adapter view group container
+     * @param position Index of item
+     * @param obj Adapter object
+     */
+    override fun destroyItem(container: ViewGroup, position: Int, obj: Any) =
+        container.removeView(obj as View)
+
+    override fun instantiateItem(container: ViewGroup, position: Int): Any {
+        val inflater = LayoutInflater.from(container.context)
+        val layout = inflater.inflate(PAGE_LAYOUTS[position], container, false) as ViewGroup
+
+        // If final page
+        if (position == PAGE_LAYOUTS.size - 1) {
+            // Add link to more information
+            val moreInfo = layout.findViewById<TextView>(R.id.welcomeInfo)
+            setUnderlinedText(moreInfo, R.string.welcome_help_button_text)
+            moreInfo.setOnClickListener {
+                handleWebUrl(
+                    container.context,
+                    "https://commons.wikimedia.org/wiki/Help:Contents".toUri()
+                )
+            }
+
+            // Handle click of finishTutorialButton ("YES!" button) inside layout
+            layout.findViewById<View>(R.id.finishTutorialButton)
+                .setOnClickListener { view: View? -> (container.context as WelcomeActivity).finishTutorial() }
+        }
+
+        container.addView(layout)
+        return layout
+    }
+
+    companion object {
+        private val PAGE_LAYOUTS = intArrayOf(
+            R.layout.welcome_wikipedia,
+            R.layout.welcome_do_upload,
+            R.layout.welcome_dont_upload,
+            R.layout.welcome_image_example,
+            R.layout.welcome_final
+        )
+    }
+}

app/src/main/java/fr/free/nrw/commons/actions/MwThankPostResponse.kt

@@ -0,0 +1,18 @@
+package fr.free.nrw.commons.actions
+
+import fr.free.nrw.commons.wikidata.mwapi.MwResponse
+
+/**
+ * Response of the Thanks API.
+ * Context:
+ * The Commons Android app lets you thank other contributors who have uploaded a great picture.
+ * See https://www.mediawiki.org/wiki/Extension:Thanks
+ */
+class MwThankPostResponse : MwResponse() {
+    var result: Result? = null
+
+    inner class Result {
+        var success: Int? = null
+        var recipient: String? = null
+    }
+}

app/src/main/java/fr/free/nrw/commons/actions/PageEditClient.kt

@@ -1,8 +1,9 @@
 package fr.free.nrw.commons.actions
 
+import fr.free.nrw.commons.auth.csrf.CsrfTokenClient
+import fr.free.nrw.commons.auth.csrf.InvalidLoginTokenException
 import io.reactivex.Observable
 import io.reactivex.Single
-import org.wikipedia.csrf.CsrfTokenClient
 
 /**
  * This class acts as a Client to facilitate wiki page editing
@@ -13,9 +14,8 @@ import org.wikipedia.csrf.CsrfTokenClient
  */
 class PageEditClient(
     private val csrfTokenClient: CsrfTokenClient,
-    private val pageEditInterface: PageEditInterface
+    private val pageEditInterface: PageEditInterface,
 ) {
-
     /**
      * Replace the content of a wiki page
      * @param pageTitle   Title of the page to edit
@@ -23,14 +23,60 @@ class PageEditClient(
      * @param summary     Edit summary
      * @return whether the edit was successful
      */
-    fun edit(pageTitle: String, text: String, summary: String): Observable<Boolean> {
+    fun edit(
-        return try {
+        pageTitle: String,
-            pageEditInterface.postEdit(pageTitle, summary, text, csrfTokenClient.tokenBlocking)
+        text: String,
-                .map { editResponse -> editResponse.edit()!!.editSucceeded() }
+        summary: String,
+    ): Observable<Boolean> =
+        try {
+            pageEditInterface
+                .postEdit(pageTitle, summary, text, csrfTokenClient.getTokenBlocking())
+                .map { editResponse ->
+                    editResponse.edit()!!.editSucceeded()
+                }
         } catch (throwable: Throwable) {
-            Observable.just(false)
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(false)
+            }
+        }
+
+    /**
+     * Creates a new page with the given title, text, and summary.
+     *
+     * @param pageTitle The title of the page to be created.
+     * @param text      The content of the page in wikitext format.
+     * @param summary   The edit summary for the page creation.
+     * @return An observable that emits true if the page creation succeeded, false otherwise.
+     * @throws InvalidLoginTokenException If an invalid login token is encountered during the process.
+     */
+    fun postCreate(
+        pageTitle: String,
+        text: String,
+        summary: String,
+    ): Observable<Boolean> =
+        try {
+            pageEditInterface
+                .postCreate(
+                    pageTitle,
+                    summary,
+                    text,
+                    "text/x-wiki",
+                    "wikitext",
+                    true,
+                    true,
+                    csrfTokenClient.getTokenBlocking(),
+                ).map { editResponse ->
+                    editResponse.edit()!!.editSucceeded()
+                }
+        } catch (throwable: Throwable) {
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(false)
+            }
         }
-    }
 
     /**
      * Append text to the end of a wiki page
@@ -39,14 +85,22 @@ class PageEditClient(
      * @param summary     Edit summary
      * @return whether the edit was successful
      */
-    fun appendEdit(pageTitle: String, appendText: String, summary: String): Observable<Boolean> {
+    fun appendEdit(
-        return try {
+        pageTitle: String,
-            pageEditInterface.postAppendEdit(pageTitle, summary, appendText, csrfTokenClient.tokenBlocking)
+        appendText: String,
+        summary: String,
+    ): Observable<Boolean> =
+        try {
+            pageEditInterface
+                .postAppendEdit(pageTitle, summary, appendText, csrfTokenClient.getTokenBlocking())
                 .map { editResponse -> editResponse.edit()!!.editSucceeded() }
         } catch (throwable: Throwable) {
-            Observable.just(false)
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(false)
+            }
         }
-    }
 
     /**
      * Prepend text to the beginning of a wiki page
@@ -55,14 +109,48 @@ class PageEditClient(
      * @param summary     Edit summary
      * @return whether the edit was successful
      */
-    fun prependEdit(pageTitle: String, prependText: String, summary: String): Observable<Boolean> {
+    fun prependEdit(
-        return try {
+        pageTitle: String,
-            pageEditInterface.postPrependEdit(pageTitle, summary, prependText, csrfTokenClient.tokenBlocking)
+        prependText: String,
+        summary: String,
+    ): Observable<Boolean> =
+        try {
+            pageEditInterface
+                .postPrependEdit(pageTitle, summary, prependText, csrfTokenClient.getTokenBlocking())
+                .map { editResponse -> editResponse.edit()?.editSucceeded() ?: false }
+        } catch (throwable: Throwable) {
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(false)
+            }
+        }
+
+    /**
+     * Appends a new section to the wiki page
+     * @param pageTitle   Title of the page to edit
+     * @param sectionTitle Title of the new section that needs to be created
+     * @param sectionText  The page content that is to be added to the section
+     * @param summary     Edit summary
+     * @return whether the edit was successful
+     */
+    fun createNewSection(
+        pageTitle: String,
+        sectionTitle: String,
+        sectionText: String,
+        summary: String,
+    ): Observable<Boolean> =
+        try {
+            pageEditInterface
+                .postNewSection(pageTitle, summary, sectionTitle, sectionText, csrfTokenClient.getTokenBlocking())
                 .map { editResponse -> editResponse.edit()!!.editSucceeded() }
         } catch (throwable: Throwable) {
-            Observable.just(false)
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(false)
+            }
         }
-    }
 
     /**
      * Set new labels to Wikibase server of commons
@@ -72,24 +160,42 @@ class PageEditClient(
      * @param value label
      * @return 1 when the edit was successful
      */
-    fun setCaptions(summary: String, title: String,
+    fun setCaptions(
-                    language: String, value: String) : Observable<Int>{
+        summary: String,
-        return try {
+        title: String,
-            pageEditInterface.postCaptions(summary, title, language,
+        language: String,
-                value, csrfTokenClient.tokenBlocking).map { it.success }
+        value: String,
+    ): Observable<Int> =
+        try {
+            pageEditInterface
+                .postCaptions(
+                    summary,
+                    title,
+                    language,
+                    value,
+                    csrfTokenClient.getTokenBlocking(),
+                ).map { it.success }
         } catch (throwable: Throwable) {
-            Observable.just(0)
+            if (throwable is InvalidLoginTokenException) {
+                throw throwable
+            } else {
+                Observable.just(0)
+            }
         }
-    }
 
     /**
      * Get whole WikiText of required file
      * @param title : Name of the file
      * @return Observable<MwQueryResult>
      */
-    fun getCurrentWikiText(title: String): Single<String?> {
+    fun getCurrentWikiText(title: String): Single<String?> =
-        return pageEditInterface.getWikiText(title).map {
+        pageEditInterface.getWikiText(title).map {
-            it.query()?.pages()?.get(0)?.revisions()?.get(0)?.content()
+            it
+                .query()
+                ?.pages()
+                ?.get(0)
+                ?.revisions()
+                ?.get(0)
+                ?.content()
         }
-    }
+}
-}

app/src/main/java/fr/free/nrw/commons/actions/PageEditInterface.kt

@@ -1,12 +1,17 @@
 package fr.free.nrw.commons.actions
 
+import fr.free.nrw.commons.wikidata.WikidataConstants.MW_API_PREFIX
+import fr.free.nrw.commons.wikidata.model.Entities
+import fr.free.nrw.commons.wikidata.model.edit.Edit
+import fr.free.nrw.commons.wikidata.mwapi.MwQueryResponse
 import io.reactivex.Observable
 import io.reactivex.Single
-import org.wikipedia.dataclient.Service
+import retrofit2.http.Field
-import org.wikipedia.dataclient.mwapi.MwQueryResponse
+import retrofit2.http.FormUrlEncoded
-import org.wikipedia.edit.Edit
+import retrofit2.http.GET
-import org.wikipedia.wikidata.Entities
+import retrofit2.http.Headers
-import retrofit2.http.*
+import retrofit2.http.POST
+import retrofit2.http.Query
 
 /**
  * This interface facilitates wiki commons page editing services to the Networking module
@@ -27,13 +32,40 @@ interface PageEditInterface {
      */
     @FormUrlEncoded
     @Headers("Cache-Control: no-cache")
-    @POST(Service.MW_API_PREFIX + "action=edit")
+    @POST(MW_API_PREFIX + "action=edit")
     fun postEdit(
         @Field("title") title: String,
         @Field("summary") summary: String,
         @Field("text") text: String,
         // NOTE: This csrf shold always be sent as the last field of form data
-        @Field("token") token: String
+        @Field("token") token: String,
+    ): Observable<Edit>
+
+    /**
+     * This method creates or edits a page for nearby items.
+     *
+     * @param title           Title of the page to edit. Cannot be used together with pageid.
+     * @param summary         Edit summary. Also used as the section title when section=new and sectiontitle is not set.
+     * @param text            Text of the page.
+     * @param contentformat   Format of the content (e.g., "text/x-wiki").
+     * @param contentmodel    Model of the content (e.g., "wikitext").
+     * @param minor           Whether the edit is a minor edit.
+     * @param recreate        Whether to recreate the page if it does not exist.
+     * @param token           A "csrf" token. This should always be sent as the last field of form data.
+     */
+    @FormUrlEncoded
+    @Headers("Cache-Control: no-cache")
+    @POST(MW_API_PREFIX + "action=edit")
+    fun postCreate(
+        @Field("title") title: String,
+        @Field("summary") summary: String,
+        @Field("text") text: String,
+        @Field("contentformat") contentformat: String,
+        @Field("contentmodel") contentmodel: String,
+        @Field("minor") minor: Boolean,
+        @Field("recreate") recreate: Boolean,
+        // NOTE: This csrf shold always be sent as the last field of form data
+        @Field("token") token: String,
     ): Observable<Edit>
 
     /**
@@ -47,12 +79,12 @@ interface PageEditInterface {
      */
     @FormUrlEncoded
     @Headers("Cache-Control: no-cache")
-    @POST(Service.MW_API_PREFIX + "action=edit")
+    @POST(MW_API_PREFIX + "action=edit")
     fun postAppendEdit(
         @Field("title") title: String,
         @Field("summary") summary: String,
         @Field("appendtext") appendText: String,
-        @Field("token") token: String
+        @Field("token") token: String,
     ): Observable<Edit>
 
     /**
@@ -66,36 +98,44 @@ interface PageEditInterface {
      */
     @FormUrlEncoded
     @Headers("Cache-Control: no-cache")
-    @POST(Service.MW_API_PREFIX + "action=edit")
+    @POST(MW_API_PREFIX + "action=edit")
     fun postPrependEdit(
         @Field("title") title: String,
         @Field("summary") summary: String,
         @Field("prependtext") prependText: String,
-        @Field("token") token: String
+        @Field("token") token: String,
     ): Observable<Edit>
 
-
     @FormUrlEncoded
     @Headers("Cache-Control: no-cache")
-    @POST(Service.MW_API_PREFIX + "action=wbsetlabel&format=json&site=commonswiki&formatversion=2")
+    @POST(MW_API_PREFIX + "action=edit&section=new")
+    fun postNewSection(
+        @Field("title") title: String,
+        @Field("summary") summary: String,
+        @Field("sectiontitle") sectionTitle: String,
+        @Field("text") sectionText: String,
+        @Field("token") token: String,
+    ): Observable<Edit>
+
+    @FormUrlEncoded
+    @Headers("Cache-Control: no-cache")
+    @POST(MW_API_PREFIX + "action=wbsetlabel&format=json&site=commonswiki&formatversion=2")
     fun postCaptions(
         @Field("summary") summary: String,
         @Field("title") title: String,
         @Field("language") language: String,
         @Field("value") value: String,
-        @Field("token") token: String
+        @Field("token") token: String,
     ): Observable<Entities>
 
     /**
-     * Get wiki text for provided file names
+     * Gets the wiki text for the provided file name.
-     * @param titles : Name of the file
+     *
-     * @return Single<MwQueryResult>
+     * @param title The title (name) of the file to fetch wiki text for.
+     * @return A Single emitting the wiki query response.
      */
-    @GET(
+    @GET(MW_API_PREFIX + "action=query&prop=revisions&rvprop=content|timestamp&rvlimit=1&converttitles=")
-        Service.MW_API_PREFIX +
-                "action=query&prop=revisions&rvprop=content|timestamp&rvlimit=1&converttitles="
-    )
     fun getWikiText(
-        @Query("titles") title: String
+        @Query("titles") title: String,
     ): Single<MwQueryResponse?>
-}
+}

app/src/main/java/fr/free/nrw/commons/actions/ThanksClient.kt

@@ -1,11 +1,10 @@
 package fr.free.nrw.commons.actions
 
 import fr.free.nrw.commons.CommonsApplication
-import fr.free.nrw.commons.di.NetworkingModule.NAMED_COMMONS_CSRF
+import fr.free.nrw.commons.auth.csrf.CsrfTokenClient
+import fr.free.nrw.commons.auth.csrf.InvalidLoginTokenException
+import fr.free.nrw.commons.di.NetworkingModule.Companion.NAMED_COMMONS_CSRF
 import io.reactivex.Observable
-import org.wikipedia.csrf.CsrfTokenClient
-import org.wikipedia.dataclient.Service
-import org.wikipedia.dataclient.mwapi.MwPostResponse
 import javax.inject.Inject
 import javax.inject.Named
 import javax.inject.Singleton
@@ -15,22 +14,33 @@ import javax.inject.Singleton
  * Thanks are used by a user to show gratitude to another user for their contributions
  */
 @Singleton
-class ThanksClient @Inject constructor(
+class ThanksClient
-    @param:Named(NAMED_COMMONS_CSRF) private val csrfTokenClient: CsrfTokenClient,
+    @Inject
-    @param:Named("commons-service") private val service: Service
+    constructor(
-) {
+        @param:Named(NAMED_COMMONS_CSRF) private val csrfTokenClient: CsrfTokenClient,
-    /**
+        private val service: ThanksInterface,
-     * Thanks a user for a particular revision
+    ) {
-     * @param revisionId The revision ID the user would like to thank someone for
+        /**
-     * @return if thanks was successfully sent to intended recipient
+         * Thanks a user for a particular revision
-     */
+         * @param revisionId The revision ID the user would like to thank someone for
-    fun thank(revisionId: Long): Observable<Boolean> {
+         * @return if thanks was successfully sent to intended recipient
-        return try {
+         */
-            service.thank(revisionId.toString(), null, csrfTokenClient.tokenBlocking, CommonsApplication.getInstance().userAgent)
+        fun thank(revisionId: Long): Observable<Boolean> =
-                .map { mwThankPostResponse -> mwThankPostResponse.result.success== 1 }
+            try {
-        } catch (throwable: Throwable) {
+                service
-            Observable.just(false)
+                    .thank(
-        }
+                        revisionId.toString(), // Rev
+                        null, // Log
+                        csrfTokenClient.getTokenBlocking(), // Token
+                        CommonsApplication.instance.userAgent, // Source
+                    ).map { mwThankPostResponse ->
+                        mwThankPostResponse.result?.success == 1
+                    }
+            } catch (throwable: Throwable) {
+                if (throwable is InvalidLoginTokenException) {
+                    Observable.error(throwable)
+                } else {
+                    Observable.just(false)
+                }
+            }
     }
-
-}

app/src/main/java/fr/free/nrw/commons/actions/ThanksInterface.kt

@@ -0,0 +1,24 @@
+package fr.free.nrw.commons.actions
+
+import fr.free.nrw.commons.wikidata.WikidataConstants.MW_API_PREFIX
+import io.reactivex.Observable
+import retrofit2.http.Field
+import retrofit2.http.FormUrlEncoded
+import retrofit2.http.POST
+
+/**
+ * Thanks API.
+ * Context:
+ * The Commons Android app lets you thank another contributor who has uploaded a great picture.
+ * See https://www.mediawiki.org/wiki/Extension:Thanks
+ */
+interface ThanksInterface {
+    @FormUrlEncoded
+    @POST(MW_API_PREFIX + "action=thank")
+    fun thank(
+        @Field("rev") rev: String?,
+        @Field("log") log: String?,
+        @Field("token") token: String,
+        @Field("source") source: String?,
+    ): Observable<MwThankPostResponse?>
+}

app/src/main/java/fr/free/nrw/commons/activity/SingleWebViewActivity.kt

@@ -0,0 +1,218 @@
+package fr.free.nrw.commons.activity
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.webkit.ConsoleMessage
+import android.webkit.CookieManager
+import android.webkit.WebChromeClient
+import android.webkit.WebResourceRequest
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.viewinterop.AndroidView
+import fr.free.nrw.commons.CommonsApplication
+import fr.free.nrw.commons.CommonsApplication.ActivityLogoutListener
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.di.ApplicationlessInjection
+import fr.free.nrw.commons.wikidata.cookies.CommonsCookieJar
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import timber.log.Timber
+import javax.inject.Inject
+
+/**
+ * SingleWebViewActivity is a reusable activity webView based on a given url(initial url) and
+ * closes itself when a specified success URL is reached to success url.
+ */
+class SingleWebViewActivity : ComponentActivity() {
+    @Inject
+    lateinit var cookieJar: CommonsCookieJar
+
+    @OptIn(ExperimentalMaterial3Api::class)
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        val url = intent.getStringExtra(VANISH_ACCOUNT_URL)
+        val successUrl = intent.getStringExtra(VANISH_ACCOUNT_SUCCESS_URL)
+        if (url == null || successUrl == null) {
+            finish()
+            return
+        }
+        ApplicationlessInjection
+            .getInstance(applicationContext)
+            .commonsApplicationComponent
+            .inject(this)
+        setCookies(url)
+        enableEdgeToEdge()
+        setContent {
+            Scaffold(
+                topBar = {
+                    TopAppBar(
+                        modifier = Modifier,
+                        title = { Text(getString(R.string.vanish_account)) },
+                        navigationIcon = {
+                            IconButton(
+                                onClick = {
+                                    // Close the WebView Activity if the user taps the back button
+                                    finish()
+                                },
+                            ) {
+                                Icon(
+                                    imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+                                    // TODO("Add contentDescription)
+                                    contentDescription = ""
+                                )
+                            }
+                        }
+                    )
+                },
+                content = {
+                    WebViewComponent(
+                        url = url,
+                        successUrl = successUrl,
+                        onSuccess = {
+                            //Redirect the user to login screen like we do when the user logout's
+                            val app = applicationContext as CommonsApplication
+                            app.clearApplicationData(
+                                applicationContext,
+                                ActivityLogoutListener(activity = this, ctx = applicationContext)
+                            )
+                            finish()
+                        },
+                        modifier = Modifier
+                            .fillMaxSize()
+                            .padding(it)
+                    )
+                }
+            )
+        }
+    }
+
+
+    /**
+     * @param url The initial URL which we are loading in the WebView.
+     * @param successUrl The URL that, when reached, triggers the `onSuccess` callback.
+     * @param onSuccess A callback that is invoked when the current url of webView is successUrl.
+     * This is used when we want to close when the webView once a success url is hit.
+     * @param modifier An optional [Modifier] to customize the layout or appearance of the WebView.
+     */
+    @SuppressLint("SetJavaScriptEnabled")
+    @Composable
+    private fun WebViewComponent(
+        url: String,
+        successUrl: String,
+        onSuccess: () -> Unit,
+        modifier: Modifier = Modifier
+    ) {
+        val webView = remember { mutableStateOf<WebView?>(null) }
+        AndroidView(
+            modifier = modifier,
+            factory = {
+                WebView(it).apply {
+                    settings.apply {
+                        javaScriptEnabled = true
+                        domStorageEnabled = true
+                        javaScriptCanOpenWindowsAutomatically = true
+
+                    }
+                    webViewClient = object : WebViewClient() {
+                        override fun shouldOverrideUrlLoading(
+                            view: WebView?,
+                            request: WebResourceRequest?
+                        ): Boolean {
+
+                            request?.url?.let { url ->
+                                Timber.d("URL Loading: $url")
+                                if (url.toString() == successUrl) {
+                                    Timber.d("Success URL detected. Closing WebView.")
+                                    onSuccess() // Close the activity
+                                    return true
+                                }
+                                return false
+                            }
+                            return false
+                        }
+
+                        override fun onPageFinished(view: WebView?, url: String?) {
+                            super.onPageFinished(view, url)
+                            setCookies(url.orEmpty())
+                        }
+
+                    }
+
+                    webChromeClient = object : WebChromeClient() {
+                        override fun onConsoleMessage(message: ConsoleMessage): Boolean {
+                            Timber.d("%s%s",
+                                "Console: ${message.message()} -- From line ",
+                                "${message.lineNumber()} of ${message.sourceId()}")
+                            return true
+                        }
+                    }
+
+                    loadUrl(url)
+                }
+            },
+            update = {
+                webView.value = it
+            }
+        )
+
+    }
+
+    /**
+     * Sets cookies for the given URL using the cookies stored in the `CommonsCookieJar`.
+     *
+     * @param url The URL for which cookies need to be set.
+     */
+    private fun setCookies(url: String) {
+        CookieManager.getInstance().let {
+            val cookies = cookieJar.loadForRequest(url.toHttpUrl())
+            for (cookie in cookies) {
+                it.setCookie(url, cookie.toString())
+            }
+        }
+    }
+
+    companion object {
+        private const val VANISH_ACCOUNT_URL = "VanishAccountUrl"
+        private const val VANISH_ACCOUNT_SUCCESS_URL = "vanishAccountSuccessUrl"
+
+        /**
+         * Launch the WebViewActivity with the specified URL and success URL.
+         * @param context The context from which the activity is launched.
+         * @param url The initial URL to load in the WebView.
+         * @param successUrl The URL that triggers the WebView to close when matched.
+         */
+        fun showWebView(
+            context: Context,
+            url: String,
+            successUrl: String
+        ) {
+            val intent = Intent(
+                context,
+                SingleWebViewActivity::class.java
+            ).apply {
+                putExtra(VANISH_ACCOUNT_URL, url)
+                putExtra(VANISH_ACCOUNT_SUCCESS_URL, successUrl)
+            }
+            context.startActivity(intent)
+        }
+    }
+}
+

app/src/main/java/fr/free/nrw/commons/auth/AccountUtil.java

@@ -1,44 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.accounts.Account;
-import android.accounts.AccountManager;
-import android.content.Context;
-
-import androidx.annotation.Nullable;
-
-import fr.free.nrw.commons.BuildConfig;
-import timber.log.Timber;
-
-public class AccountUtil {
-
-    public static final String AUTH_TOKEN_TYPE = "CommonsAndroid";
-
-    public AccountUtil() {
-    }
-
-    /**
-     * @return Account|null
-     */
-    @Nullable
-    public static Account account(Context context) {
-        try {
-            Account[] accounts = accountManager(context).getAccountsByType(BuildConfig.ACCOUNT_TYPE);
-            if (accounts.length > 0) {
-                return accounts[0];
-            }
-        } catch (SecurityException e) {
-            Timber.e(e);
-        }
-        return null;
-    }
-
-    @Nullable
-    public static String getUserName(Context context) {
-        Account account = account(context);
-        return account == null ? null : account.name;
-    }
-
-    private static AccountManager accountManager(Context context) {
-        return AccountManager.get(context);
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/AccountUtil.kt

@@ -0,0 +1,24 @@
+package fr.free.nrw.commons.auth
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.content.Context
+import androidx.annotation.VisibleForTesting
+import fr.free.nrw.commons.BuildConfig.ACCOUNT_TYPE
+import timber.log.Timber
+
+const val AUTH_TOKEN_TYPE: String = "CommonsAndroid"
+
+fun getUserName(context: Context): String? {
+    return account(context)?.name
+}
+
+@VisibleForTesting
+fun account(context: Context): Account? = try {
+    val accountManager = AccountManager.get(context)
+    val accounts = accountManager.getAccountsByType(ACCOUNT_TYPE)
+    if (accounts.isNotEmpty()) accounts[0] else null
+} catch (e: SecurityException) {
+    Timber.e(e)
+    null
+}

app/src/main/java/fr/free/nrw/commons/auth/LoginActivity.java

@@ -1,500 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.accounts.AccountAuthenticatorActivity;
-import android.app.ProgressDialog;
-import android.content.Context;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.text.Editable;
-import android.text.TextWatcher;
-import android.view.KeyEvent;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.inputmethod.InputMethodManager;
-import android.widget.Button;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import androidx.annotation.ColorRes;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatDelegate;
-import androidx.core.app.NavUtils;
-import androidx.core.content.ContextCompat;
-
-import com.google.android.material.textfield.TextInputLayout;
-
-import fr.free.nrw.commons.utils.ActivityUtils;
-import java.util.Locale;
-import org.wikipedia.AppAdapter;
-import org.wikipedia.dataclient.ServiceFactory;
-import org.wikipedia.dataclient.WikiSite;
-import org.wikipedia.dataclient.mwapi.MwQueryResponse;
-import org.wikipedia.login.LoginClient;
-import org.wikipedia.login.LoginClient.LoginCallback;
-import org.wikipedia.login.LoginResult;
-
-import javax.inject.Inject;
-import javax.inject.Named;
-
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import butterknife.OnEditorAction;
-import butterknife.OnFocusChange;
-import fr.free.nrw.commons.BuildConfig;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
-import fr.free.nrw.commons.WelcomeActivity;
-import fr.free.nrw.commons.contributions.MainActivity;
-import fr.free.nrw.commons.di.ApplicationlessInjection;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import fr.free.nrw.commons.utils.ConfigUtils;
-import fr.free.nrw.commons.utils.SystemThemeUtils;
-import fr.free.nrw.commons.utils.ViewUtil;
-import io.reactivex.disposables.CompositeDisposable;
-import retrofit2.Call;
-import retrofit2.Callback;
-import retrofit2.Response;
-import timber.log.Timber;
-
-import static android.view.KeyEvent.KEYCODE_ENTER;
-import static android.view.View.VISIBLE;
-import static android.view.inputmethod.EditorInfo.IME_ACTION_DONE;
-import static fr.free.nrw.commons.di.NetworkingModule.NAMED_COMMONS_WIKI_SITE;
-
-public class LoginActivity extends AccountAuthenticatorActivity {
-
-    @Inject
-    SessionManager sessionManager;
-
-    @Inject
-    @Named(NAMED_COMMONS_WIKI_SITE)
-    WikiSite commonsWikiSite;
-
-    @Inject
-    @Named("default_preferences")
-    JsonKvStore applicationKvStore;
-
-    @Inject
-    LoginClient loginClient;
-
-    @Inject
-    SystemThemeUtils systemThemeUtils;
-
-    @BindView(R.id.login_button)
-    Button loginButton;
-
-    @BindView(R.id.login_username)
-    EditText usernameEdit;
-
-    @BindView(R.id.login_password)
-    EditText passwordEdit;
-
-    @BindView(R.id.login_two_factor)
-    EditText twoFactorEdit;
-
-    @BindView(R.id.error_message_container)
-    ViewGroup errorMessageContainer;
-
-    @BindView(R.id.error_message)
-    TextView errorMessage;
-
-    @BindView(R.id.login_credentials)
-    TextView loginCredentials;
-
-    @BindView(R.id.two_factor_container)
-    TextInputLayout twoFactorContainer;
-
-    ProgressDialog progressDialog;
-    private AppCompatDelegate delegate;
-    private LoginTextWatcher textWatcher = new LoginTextWatcher();
-    private CompositeDisposable compositeDisposable = new CompositeDisposable();
-    private Call<MwQueryResponse> loginToken;
-    final  String saveProgressDailog="ProgressDailog_state";
-    final String saveErrorMessage ="errorMessage";
-    final String saveUsername="username";
-    final  String savePassword="password";
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        ApplicationlessInjection
-                .getInstance(this.getApplicationContext())
-                .getCommonsApplicationComponent()
-                .inject(this);
-
-        boolean isDarkTheme = systemThemeUtils.isDeviceInNightMode();
-        setTheme(isDarkTheme ? R.style.DarkAppTheme : R.style.LightAppTheme);
-        getDelegate().installViewFactory();
-        getDelegate().onCreate(savedInstanceState);
-
-        setContentView(R.layout.activity_login);
-
-        ButterKnife.bind(this);
-
-        usernameEdit.addTextChangedListener(textWatcher);
-        passwordEdit.addTextChangedListener(textWatcher);
-        twoFactorEdit.addTextChangedListener(textWatcher);
-
-        if (ConfigUtils.isBetaFlavour()) {
-            loginCredentials.setText(getString(R.string.login_credential));
-        } else {
-            loginCredentials.setVisibility(View.GONE);
-        }
-    }
-    /** 
-     * Hides the keyboard if the user's focus is not on the password (hasFocus is false).
-     * @param view The keyboard
-     * @param hasFocus Set to true if the keyboard has focus
-     */
-    @OnFocusChange(R.id.login_password)
-    void onPasswordFocusChanged(View view, boolean hasFocus) {
-        if (!hasFocus) {
-            ViewUtil.hideKeyboard(view);
-        }
-    }
-
-    @OnEditorAction(R.id.login_password)
-    boolean onEditorAction(int actionId, KeyEvent keyEvent) {
-        if (loginButton.isEnabled()) {
-            if (actionId == IME_ACTION_DONE) {
-                performLogin();
-                return true;
-            } else if ((keyEvent != null) && keyEvent.getKeyCode() == KEYCODE_ENTER) {
-                performLogin();
-                return true;
-            }
-        }
-        return false;
-    }
-
-
-    @OnClick(R.id.skip_login)
-    void skipLogin() {
-        new AlertDialog.Builder(this).setTitle(R.string.skip_login_title)
-                .setMessage(R.string.skip_login_message)
-                .setCancelable(false)
-                .setPositiveButton(R.string.yes, (dialog, which) -> {
-                    dialog.cancel();
-                    performSkipLogin();
-                })
-                .setNegativeButton(R.string.no, (dialog, which) -> dialog.cancel())
-                .show();
-    }
-
-    @OnClick(R.id.forgot_password)
-    void forgotPassword() {
-        Utils.handleWebUrl(this, Uri.parse(BuildConfig.FORGOT_PASSWORD_URL));
-    }
-
-    @OnClick(R.id.about_privacy_policy)
-    void onPrivacyPolicyClicked() {
-        Utils.handleWebUrl(this, Uri.parse(BuildConfig.PRIVACY_POLICY_URL));
-    }
-
-    @OnClick(R.id.sign_up_button)
-    void signUp() {
-        Intent intent = new Intent(this, SignupActivity.class);
-        startActivity(intent);
-    }
-
-    @Override
-    protected void onPostCreate(Bundle savedInstanceState) {
-        super.onPostCreate(savedInstanceState);
-        getDelegate().onPostCreate(savedInstanceState);
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-
-        if (sessionManager.getCurrentAccount() != null
-                && sessionManager.isUserLoggedIn()) {
-            applicationKvStore.putBoolean("login_skipped", false);
-            startMainActivity();
-        }
-
-        if (applicationKvStore.getBoolean("login_skipped", false)) {
-            performSkipLogin();
-        }
-
-    }
-
-    @Override
-    protected void onDestroy() {
-        compositeDisposable.clear();
-        try {
-            // To prevent leaked window when finish() is called, see http://stackoverflow.com/questions/32065854/activity-has-leaked-window-at-alertdialog-show-method
-            if (progressDialog != null && progressDialog.isShowing()) {
-                progressDialog.dismiss();
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        usernameEdit.removeTextChangedListener(textWatcher);
-        passwordEdit.removeTextChangedListener(textWatcher);
-        twoFactorEdit.removeTextChangedListener(textWatcher);
-        delegate.onDestroy();
-        if(null!=loginClient) {
-            loginClient.cancel();
-        }
-        super.onDestroy();
-    }
-
-    @OnClick(R.id.login_button)
-    public void performLogin() {
-        Timber.d("Login to start!");
-        final String username = usernameEdit.getText().toString();
-        final String rawUsername = usernameEdit.getText().toString().trim();
-        final String password = passwordEdit.getText().toString();
-        String twoFactorCode = twoFactorEdit.getText().toString();
-
-        showLoggingProgressBar();
-        doLogin(username, password, twoFactorCode);
-    }
-
-    private void doLogin(String username, String password, String twoFactorCode) {
-        progressDialog.show();
-        loginToken = ServiceFactory.get(commonsWikiSite).getLoginToken();
-        loginToken.enqueue(
-                new Callback<MwQueryResponse>() {
-                    @Override
-                    public void onResponse(Call<MwQueryResponse> call,
-                                           Response<MwQueryResponse> response) {
-                        loginClient.login(commonsWikiSite, username, password, null, twoFactorCode,
-                                response.body().query().loginToken(), Locale.getDefault().getLanguage(), new LoginCallback() {
-                                    @Override
-                                    public void success(@NonNull LoginResult result) {
-                                        Timber.d("Login Success");
-                                        onLoginSuccess(result);
-                                    }
-
-                                    @Override
-                                    public void twoFactorPrompt(@NonNull Throwable caught,
-                                                                @Nullable String token) {
-                                        Timber.d("Requesting 2FA prompt");
-                                        hideProgress();
-                                        askUserForTwoFactorAuth();
-                                    }
-
-                                    @Override
-                                    public void passwordResetPrompt(@Nullable String token) {
-                                        Timber.d("Showing password reset prompt");
-                                        hideProgress();
-                                        showPasswordResetPrompt();
-                                    }
-
-                                    @Override
-                                    public void error(@NonNull Throwable caught) {
-                                        Timber.e(caught);
-                                        hideProgress();
-                                        showMessageAndCancelDialog(caught.getLocalizedMessage());
-                                    }
-                                });
-                    }
-
-                    @Override
-                    public void onFailure(Call<MwQueryResponse> call, Throwable t) {
-                        Timber.e(t);
-                        showMessageAndCancelDialog(t.getLocalizedMessage());
-                    }
-                });
-
-    }
-
-    private void hideProgress() {
-        progressDialog.dismiss();
-    }
-
-    private void showPasswordResetPrompt() {
-        showMessageAndCancelDialog(getString(R.string.you_must_reset_your_passsword));
-    }
-
-
-    /**
-     * This function is called when user skips the login.
-     * It redirects the user to Explore Activity.
-     */
-    private void performSkipLogin() {
-        applicationKvStore.putBoolean("login_skipped", true);
-        MainActivity.startYourself(this);
-        finish();
-    }
-
-    private void showLoggingProgressBar() {
-        progressDialog = new ProgressDialog(this);
-        progressDialog.setIndeterminate(true);
-        progressDialog.setTitle(getString(R.string.logging_in_title));
-        progressDialog.setMessage(getString(R.string.logging_in_message));
-        progressDialog.setCanceledOnTouchOutside(false);
-        progressDialog.show();
-    }
-
-    private void onLoginSuccess(LoginResult loginResult) {
-        if (!progressDialog.isShowing()) {
-            // no longer attached to activity!
-            return;
-        }
-        compositeDisposable.clear();
-        sessionManager.setUserLoggedIn(true);
-        AppAdapter.get().updateAccount(loginResult);
-        progressDialog.dismiss();
-        showSuccessAndDismissDialog();
-        startMainActivity();
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        delegate.onStart();
-    }
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        delegate.onStop();
-    }
-
-    @Override
-    protected void onPostResume() {
-        super.onPostResume();
-        getDelegate().onPostResume();
-    }
-
-    @Override
-    public void setContentView(View view, ViewGroup.LayoutParams params) {
-        getDelegate().setContentView(view, params);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case android.R.id.home:
-                NavUtils.navigateUpFromSameTask(this);
-                return true;
-        }
-        return super.onOptionsItemSelected(item);
-    }
-
-    @Override
-    @NonNull
-    public MenuInflater getMenuInflater() {
-        return getDelegate().getMenuInflater();
-    }
-
-    public void askUserForTwoFactorAuth() {
-        progressDialog.dismiss();
-        twoFactorContainer.setVisibility(VISIBLE);
-        twoFactorEdit.setVisibility(VISIBLE);
-        twoFactorEdit.requestFocus();
-        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
-        showMessageAndCancelDialog(R.string.login_failed_2fa_needed);
-    }
-
-    public void showMessageAndCancelDialog(@StringRes int resId) {
-        showMessage(resId, R.color.secondaryDarkColor);
-        if (progressDialog != null) {
-            progressDialog.cancel();
-        }
-    }
-
-    public void showMessageAndCancelDialog(String error) {
-        showMessage(error, R.color.secondaryDarkColor);
-        if (progressDialog != null) {
-            progressDialog.cancel();
-        }
-    }
-
-    public void showSuccessAndDismissDialog() {
-        showMessage(R.string.login_success, R.color.primaryDarkColor);
-        progressDialog.dismiss();
-    }
-
-    public void startMainActivity() {
-        ActivityUtils.startActivityWithFlags(this, MainActivity.class, Intent.FLAG_ACTIVITY_SINGLE_TOP);
-        finish();
-    }
-
-    private void showMessage(@StringRes int resId, @ColorRes int colorResId) {
-        errorMessage.setText(getString(resId));
-        errorMessage.setTextColor(ContextCompat.getColor(this, colorResId));
-        errorMessageContainer.setVisibility(VISIBLE);
-    }
-
-    private void showMessage(String message, @ColorRes int colorResId) {
-        errorMessage.setText(message);
-        errorMessage.setTextColor(ContextCompat.getColor(this, colorResId));
-        errorMessageContainer.setVisibility(VISIBLE);
-    }
-
-    private AppCompatDelegate getDelegate() {
-        if (delegate == null) {
-            delegate = AppCompatDelegate.create(this, null);
-        }
-        return delegate;
-    }
-
-    private class LoginTextWatcher implements TextWatcher {
-        @Override
-        public void beforeTextChanged(CharSequence charSequence, int start, int count, int after) {
-        }
-
-        @Override
-        public void onTextChanged(CharSequence charSequence, int start, int count, int after) {
-        }
-
-        @Override
-        public void afterTextChanged(Editable editable) {
-            boolean enabled = usernameEdit.getText().length() != 0 && passwordEdit.getText().length() != 0
-                    && (BuildConfig.DEBUG || twoFactorEdit.getText().length() != 0 || twoFactorEdit.getVisibility() != VISIBLE);
-            loginButton.setEnabled(enabled);
-        }
-    }
-
-    public static void startYourself(Context context) {
-        Intent intent = new Intent(context, LoginActivity.class);
-        context.startActivity(intent);
-    }
-
-    @Override
-    protected void onSaveInstanceState(Bundle outState) {
-        // if progressDialog is visible during the configuration change  then store state as  true else false so that
-        // we maintain visibility of progressDailog after configuration change
-        if(progressDialog!=null&&progressDialog.isShowing()) {
-            outState.putBoolean(saveProgressDailog,true);
-        } else {
-            outState.putBoolean(saveProgressDailog,false);
-        }
-        outState.putString(saveErrorMessage,errorMessage.getText().toString()); //Save the errorMessage
-        outState.putString(saveUsername,getUsername()); // Save the username
-        outState.putString(savePassword,getPassword()); // Save the password
-    }
-    private String getUsername() {
-        return usernameEdit.getText().toString();
-    }
-    private String getPassword(){
-        return  passwordEdit.getText().toString();
-  }
-
-    @Override
-    protected void onRestoreInstanceState(final Bundle savedInstanceState) {
-        super.onRestoreInstanceState(savedInstanceState);
-        usernameEdit.setText(savedInstanceState.getString(saveUsername));
-        passwordEdit.setText(savedInstanceState.getString(savePassword));
-        if(savedInstanceState.getBoolean(saveProgressDailog)) {
-            performLogin();
-        }
-        String errorMessage=savedInstanceState.getString(saveErrorMessage);
-        if(sessionManager.isUserLoggedIn()) {
-            showMessage(R.string.login_success, R.color.primaryDarkColor);
-        } else {
-            showMessage(errorMessage, R.color.secondaryDarkColor);
-        }
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/LoginActivity.kt

@@ -0,0 +1,489 @@
+package fr.free.nrw.commons.auth
+
+import android.accounts.AccountAuthenticatorActivity
+import android.app.ProgressDialog
+import android.content.Context
+import android.content.DialogInterface
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.view.KeyEvent
+import android.view.MenuInflater
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import android.view.inputmethod.EditorInfo
+import android.view.inputmethod.InputMethodManager
+import android.widget.TextView
+import androidx.annotation.ColorRes
+import androidx.annotation.StringRes
+import androidx.annotation.VisibleForTesting
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.app.NavUtils
+import androidx.core.content.ContextCompat
+import androidx.core.view.WindowCompat
+import fr.free.nrw.commons.BuildConfig
+import fr.free.nrw.commons.CommonsApplication
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.auth.login.LoginCallback
+import fr.free.nrw.commons.auth.login.LoginClient
+import fr.free.nrw.commons.auth.login.LoginResult
+import fr.free.nrw.commons.contributions.MainActivity
+import fr.free.nrw.commons.databinding.ActivityLoginBinding
+import fr.free.nrw.commons.di.ApplicationlessInjection
+import fr.free.nrw.commons.kvstore.JsonKvStore
+import fr.free.nrw.commons.utils.applyEdgeToEdgeAllInsets
+import fr.free.nrw.commons.utils.AbstractTextWatcher
+import fr.free.nrw.commons.utils.ActivityUtils.startActivityWithFlags
+import fr.free.nrw.commons.utils.ConfigUtils.isBetaFlavour
+import fr.free.nrw.commons.utils.SystemThemeUtils
+import fr.free.nrw.commons.utils.ViewUtil.hideKeyboard
+import fr.free.nrw.commons.utils.handleKeyboardInsets
+import fr.free.nrw.commons.utils.handleWebUrl
+import io.reactivex.disposables.CompositeDisposable
+import timber.log.Timber
+import java.util.Locale
+import javax.inject.Inject
+import javax.inject.Named
+
+class LoginActivity : AccountAuthenticatorActivity() {
+    @Inject
+    lateinit var sessionManager: SessionManager
+
+    @Inject
+    @field:Named("default_preferences")
+    lateinit var applicationKvStore: JsonKvStore
+
+    @Inject
+    lateinit var loginClient: LoginClient
+
+    @Inject
+    lateinit var systemThemeUtils: SystemThemeUtils
+
+    private var binding: ActivityLoginBinding? = null
+    private var progressDialog: ProgressDialog? = null
+    private val textWatcher = AbstractTextWatcher(::onTextChanged)
+    private val compositeDisposable = CompositeDisposable()
+    private val delegate: AppCompatDelegate by lazy {
+        AppCompatDelegate.create(this, null)
+    }
+    private var lastLoginResult: LoginResult? = null
+
+    public override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        ApplicationlessInjection
+            .getInstance(this.applicationContext)
+            .commonsApplicationComponent
+            .inject(this)
+
+        val isDarkTheme = systemThemeUtils.isDeviceInNightMode()
+        setTheme(if (isDarkTheme) R.style.DarkAppTheme else R.style.LightAppTheme)
+        delegate.installViewFactory()
+        delegate.onCreate(savedInstanceState)
+
+        WindowCompat.getInsetsController(window, window.decorView)
+            .isAppearanceLightStatusBars = !isDarkTheme
+
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+
+        binding = ActivityLoginBinding.inflate(layoutInflater)
+        applyEdgeToEdgeAllInsets(binding!!.root)
+        binding!!.root.handleKeyboardInsets()
+        with(binding!!) {
+            setContentView(root)
+
+            loginUsername.addTextChangedListener(textWatcher)
+            loginPassword.addTextChangedListener(textWatcher)
+            loginTwoFactor.addTextChangedListener(textWatcher)
+
+            skipLogin.setOnClickListener { skipLogin() }
+            forgotPassword.setOnClickListener { forgotPassword() }
+            aboutPrivacyPolicy.setOnClickListener { onPrivacyPolicyClicked() }
+            signUpButton.setOnClickListener { signUp() }
+            loginButton.setOnClickListener { performLogin() }
+            loginPassword.setOnEditorActionListener { textView, actionId, keyEvent ->
+                if (binding!!.loginButton.isEnabled && isTriggerAction(actionId, keyEvent)) {
+                    if (actionId == EditorInfo.IME_ACTION_NEXT && lastLoginResult != null) {
+                        askUserForTwoFactorAuthWithKeyboard()
+                        true
+                    } else {
+                        performLogin()
+                        true
+                    }
+                } else {
+                    false
+                }
+            }
+
+            loginPassword.onFocusChangeListener =
+                View.OnFocusChangeListener(::onPasswordFocusChanged)
+
+            if (isBetaFlavour) {
+                loginCredentials.text = getString(R.string.login_credential)
+            } else {
+                loginCredentials.visibility = View.GONE
+            }
+
+            intent.getStringExtra(CommonsApplication.LOGIN_MESSAGE_INTENT_KEY)?.let {
+                showMessage(it, R.color.secondaryDarkColor)
+            }
+
+            intent.getStringExtra(CommonsApplication.LOGIN_USERNAME_INTENT_KEY)?.let {
+                loginUsername.setText(it)
+            }
+        }
+    }
+
+    @VisibleForTesting
+    fun askUserForTwoFactorAuthWithKeyboard() {
+        if (binding == null) {
+            Timber.w("Binding is null, reinitializing in askUserForTwoFactorAuthWithKeyboard")
+            binding = ActivityLoginBinding.inflate(layoutInflater)
+            setContentView(binding!!.root)
+        }
+        progressDialog!!.dismiss()
+        if (binding != null) {
+            with(binding!!) {
+                twoFactorContainer.visibility = View.VISIBLE
+                twoFactorContainer.hint = getString(if (lastLoginResult is LoginResult.EmailAuthResult) R.string.email_auth_code else R.string._2fa_code)
+                loginTwoFactor.visibility = View.VISIBLE
+                loginTwoFactor.requestFocus()
+
+                val imm = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+                imm.showSoftInput(loginTwoFactor, InputMethodManager.SHOW_IMPLICIT)
+
+                loginTwoFactor.setOnEditorActionListener { _, actionId, event ->
+                    if (actionId == EditorInfo.IME_ACTION_DONE ||
+                        (event != null && event.keyCode == KeyEvent.KEYCODE_ENTER && event.action == KeyEvent.ACTION_DOWN)) {
+                        performLogin()
+                        true
+                    } else {
+                        false
+                    }
+                }
+            }
+        } else {
+            Timber.e("Binding is null in askUserForTwoFactorAuthWithKeyboard after reinitialization attempt")
+        }
+        showMessageAndCancelDialog(getString(if (lastLoginResult is LoginResult.EmailAuthResult) R.string.login_failed_email_auth_needed else R.string.login_failed_2fa_needed))
+    }
+    override fun onPostCreate(savedInstanceState: Bundle?) {
+        super.onPostCreate(savedInstanceState)
+        delegate.onPostCreate(savedInstanceState)
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        if (sessionManager.currentAccount != null && sessionManager.isUserLoggedIn) {
+            applicationKvStore.putBoolean("login_skipped", false)
+            startMainActivity()
+        }
+
+        if (applicationKvStore.getBoolean("login_skipped", false)) {
+            performSkipLogin()
+        }
+    }
+
+    override fun onDestroy() {
+        compositeDisposable.clear()
+        try {
+            // To prevent leaked window when finish() is called, see http://stackoverflow.com/questions/32065854/activity-has-leaked-window-at-alertdialog-show-method
+            if (progressDialog?.isShowing == true) {
+                progressDialog!!.dismiss()
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        with(binding!!) {
+            loginUsername.removeTextChangedListener(textWatcher)
+            loginPassword.removeTextChangedListener(textWatcher)
+            loginTwoFactor.removeTextChangedListener(textWatcher)
+        }
+        delegate.onDestroy()
+        loginClient.cancel()
+        binding = null
+        super.onDestroy()
+    }
+
+    override fun onStart() {
+        super.onStart()
+        delegate.onStart()
+    }
+
+    override fun onStop() {
+        super.onStop()
+        delegate.onStop()
+    }
+
+    override fun onPostResume() {
+        super.onPostResume()
+        delegate.onPostResume()
+    }
+
+    override fun setContentView(view: View, params: ViewGroup.LayoutParams) {
+        delegate.setContentView(view, params)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            android.R.id.home -> {
+                NavUtils.navigateUpFromSameTask(this)
+                return true
+            }
+        }
+        return super.onOptionsItemSelected(item)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        // if progressDialog is visible during the configuration change  then store state as  true else false so that
+        // we maintain visibility of progressDialog after configuration change
+        if (progressDialog != null && progressDialog!!.isShowing) {
+            outState.putBoolean(SAVE_PROGRESS_DIALOG, true)
+        } else {
+            outState.putBoolean(SAVE_PROGRESS_DIALOG, false)
+        }
+        outState.putString(
+            SAVE_ERROR_MESSAGE,
+            binding!!.errorMessage.text.toString()
+        ) //Save the errorMessage
+        outState.putString(
+            SAVE_USERNAME,
+            binding!!.loginUsername.text.toString()
+        ) // Save the username
+        outState.putString(
+            SAVE_PASSWORD,
+            binding!!.loginPassword.text.toString()
+        ) // Save the password
+    }
+
+    override fun onRestoreInstanceState(savedInstanceState: Bundle) {
+        super.onRestoreInstanceState(savedInstanceState)
+        binding!!.loginUsername.setText(savedInstanceState.getString(SAVE_USERNAME))
+        binding!!.loginPassword.setText(savedInstanceState.getString(SAVE_PASSWORD))
+        if (savedInstanceState.getBoolean(SAVE_PROGRESS_DIALOG)) {
+            performLogin()
+        }
+        val errorMessage = savedInstanceState.getString(SAVE_ERROR_MESSAGE)
+        if (sessionManager.isUserLoggedIn) {
+            showMessage(R.string.login_success, R.color.primaryDarkColor)
+        } else {
+            showMessage(errorMessage, R.color.secondaryDarkColor)
+        }
+    }
+
+    /**
+     * Hides the keyboard if the user's focus is not on the password (hasFocus is false).
+     * @param view The keyboard
+     * @param hasFocus Set to true if the keyboard has focus
+     */
+    private fun onPasswordFocusChanged(view: View, hasFocus: Boolean) {
+        if (!hasFocus) {
+            hideKeyboard(view)
+        }
+    }
+
+    private fun onEditorAction(textView: TextView, actionId: Int, keyEvent: KeyEvent?) =
+        if (binding!!.loginButton.isEnabled && isTriggerAction(actionId, keyEvent)) {
+            performLogin()
+            true
+        } else false
+
+    private fun isTriggerAction(actionId: Int, keyEvent: KeyEvent?) =
+        actionId == EditorInfo.IME_ACTION_NEXT || actionId == EditorInfo.IME_ACTION_DONE || keyEvent?.keyCode == KeyEvent.KEYCODE_ENTER
+
+    private fun skipLogin() {
+        AlertDialog.Builder(this)
+            .setTitle(R.string.skip_login_title)
+            .setMessage(R.string.skip_login_message)
+            .setCancelable(false)
+            .setPositiveButton(R.string.yes) { dialog: DialogInterface, which: Int ->
+                dialog.cancel()
+                performSkipLogin()
+            }
+            .setNegativeButton(R.string.no) { dialog: DialogInterface, which: Int ->
+                dialog.cancel()
+            }
+            .show()
+    }
+
+    private fun forgotPassword() =
+        handleWebUrl(this, Uri.parse(BuildConfig.FORGOT_PASSWORD_URL))
+
+    private fun onPrivacyPolicyClicked() =
+        handleWebUrl(this, Uri.parse(BuildConfig.PRIVACY_POLICY_URL))
+
+    private fun signUp() =
+        startActivity(Intent(this, SignupActivity::class.java))
+
+    @VisibleForTesting
+    fun performLogin() {
+        Timber.d("Login to start!")
+        val username = binding!!.loginUsername.text.toString()
+        val password = binding!!.loginPassword.text.toString()
+        val twoFactorCode = binding!!.loginTwoFactor.text.toString()
+
+        showLoggingProgressBar()
+        loginClient.doLogin(username,
+            password,
+            lastLoginResult,
+            twoFactorCode,
+            Locale.getDefault().language,
+            object : LoginCallback {
+                override fun success(loginResult: LoginResult) = runOnUiThread {
+                    Timber.d("Login Success")
+                    progressDialog!!.dismiss()
+                    onLoginSuccess(loginResult)
+                }
+
+                override fun twoFactorPrompt(loginResult: LoginResult, caught: Throwable, token: String?) = runOnUiThread {
+                    Timber.d("Requesting 2FA prompt")
+                    progressDialog!!.dismiss()
+                    lastLoginResult = loginResult
+                    askUserForTwoFactorAuthWithKeyboard()
+                }
+
+                override fun emailAuthPrompt(loginResult: LoginResult, caught: Throwable, token: String?) = runOnUiThread {
+                    Timber.d("Requesting email auth prompt")
+                    progressDialog!!.dismiss()
+                    lastLoginResult = loginResult
+                    askUserForTwoFactorAuthWithKeyboard()
+                }
+
+                override fun passwordResetPrompt(token: String?) = runOnUiThread {
+                    Timber.d("Showing password reset prompt")
+                    progressDialog!!.dismiss()
+                    showPasswordResetPrompt()
+                }
+
+                override fun error(caught: Throwable) = runOnUiThread {
+                    Timber.e(caught)
+                    progressDialog!!.dismiss()
+                    showMessageAndCancelDialog(caught.localizedMessage ?: "")
+                }
+            }
+        )
+    }
+
+    private fun showPasswordResetPrompt() =
+        showMessageAndCancelDialog(getString(R.string.you_must_reset_your_passsword))
+
+    /**
+     * This function is called when user skips the login.
+     * It redirects the user to Explore Activity.
+     */
+    private fun performSkipLogin() {
+        applicationKvStore.putBoolean("login_skipped", true)
+        MainActivity.startYourself(this)
+        finish()
+    }
+
+    private fun showLoggingProgressBar() {
+        progressDialog = ProgressDialog(this).apply {
+            isIndeterminate = true
+            setTitle(getString(R.string.logging_in_title))
+            setMessage(getString(R.string.logging_in_message))
+            setCancelable(false)
+        }
+        progressDialog!!.show()
+    }
+
+    private fun onLoginSuccess(loginResult: LoginResult) {
+        compositeDisposable.clear()
+        sessionManager.setUserLoggedIn(true)
+        sessionManager.updateAccount(loginResult)
+        progressDialog!!.dismiss()
+        showSuccessAndDismissDialog()
+        startMainActivity()
+    }
+
+    override fun getMenuInflater(): MenuInflater =
+        delegate.menuInflater
+
+    @VisibleForTesting
+    fun askUserForTwoFactorAuth() {
+        if (binding == null) {
+            Timber.w("Binding is null, reinitializing in askUserForTwoFactorAuth")
+            binding = ActivityLoginBinding.inflate(layoutInflater)
+            setContentView(binding!!.root)
+        }
+        progressDialog!!.dismiss()
+        if (binding != null) {
+            with(binding!!) {
+                twoFactorContainer.visibility = View.VISIBLE
+                twoFactorContainer.hint = getString(if (lastLoginResult is LoginResult.EmailAuthResult) R.string.email_auth_code else R.string._2fa_code)
+                loginTwoFactor.visibility = View.VISIBLE
+                loginTwoFactor.requestFocus()
+
+                loginTwoFactor.setOnEditorActionListener { _, actionId, event ->
+                    if (actionId == EditorInfo.IME_ACTION_DONE ||
+                        (event != null && event.keyCode == KeyEvent.KEYCODE_ENTER && event.action == KeyEvent.ACTION_DOWN)) {
+                        performLogin()
+                        true
+                    } else {
+                        false
+                    }
+                }
+            }
+        } else {
+            Timber.e("Binding is null in askUserForTwoFactorAuth after reinitialization attempt")
+        }
+        val imm = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+        imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY)
+        showMessageAndCancelDialog(getString(if (lastLoginResult is LoginResult.EmailAuthResult) R.string.login_failed_email_auth_needed else R.string.login_failed_2fa_needed))
+    }
+
+    @VisibleForTesting
+    fun showMessageAndCancelDialog(@StringRes resId: Int) {
+        showMessage(resId, R.color.secondaryDarkColor)
+        progressDialog?.cancel()
+    }
+
+    @VisibleForTesting
+    fun showMessageAndCancelDialog(error: String) {
+        showMessage(error, R.color.secondaryDarkColor)
+        progressDialog?.cancel()
+    }
+
+    @VisibleForTesting
+    fun showSuccessAndDismissDialog() {
+        showMessage(R.string.login_success, R.color.primaryDarkColor)
+        progressDialog!!.dismiss()
+    }
+
+    @VisibleForTesting
+    fun startMainActivity() {
+        startActivityWithFlags(this, MainActivity::class.java, Intent.FLAG_ACTIVITY_SINGLE_TOP)
+        finish()
+    }
+
+    private fun showMessage(@StringRes resId: Int, @ColorRes colorResId: Int) = with(binding!!) {
+        errorMessage.text = getString(resId)
+        errorMessage.setTextColor(ContextCompat.getColor(this@LoginActivity, colorResId))
+        errorMessageContainer.visibility = View.VISIBLE
+    }
+
+    private fun showMessage(message: String?, @ColorRes colorResId: Int) = with(binding!!) {
+        errorMessage.text = message
+        errorMessage.setTextColor(ContextCompat.getColor(this@LoginActivity, colorResId))
+        errorMessageContainer.visibility = View.VISIBLE
+    }
+
+    private fun onTextChanged(text: String) {
+        val enabled =
+            binding!!.loginUsername.text!!.length != 0 && binding!!.loginPassword.text!!.length != 0 &&
+                    (BuildConfig.DEBUG || binding!!.loginTwoFactor.text!!.length != 0 || binding!!.loginTwoFactor.visibility != View.VISIBLE)
+        binding!!.loginButton.isEnabled = enabled
+    }
+
+    companion object {
+        fun startYourself(context: Context) =
+            context.startActivity(Intent(context, LoginActivity::class.java))
+
+        const val SAVE_PROGRESS_DIALOG: String = "ProgressDialog_state"
+        const val SAVE_ERROR_MESSAGE: String = "errorMessage"
+        const val SAVE_USERNAME: String = "username"
+        const val SAVE_PASSWORD: String = "password"
+    }
+}

app/src/main/java/fr/free/nrw/commons/auth/LogoutClient.java

@@ -1,36 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-
-import org.wikipedia.dataclient.Service;
-import org.wikipedia.dataclient.mwapi.MwPostResponse;
-
-import java.util.Objects;
-
-import javax.inject.Inject;
-import javax.inject.Named;
-import javax.inject.Singleton;
-
-import io.reactivex.Observable;
-
-/**
- * Handler for logout
- */
-@Singleton
-public class LogoutClient {
-
-    private final Service service;
-
-    @Inject
-    public LogoutClient(@Named("commons-service") Service service) {
-        this.service = service;
-    }
-
-    /**
-     * Fetches the  CSRF token and uses that to post the logout api call
-     * @return
-     */
-    public Observable<MwPostResponse> postLogout() {
-        return service.getCsrfToken().concatMap(tokenResponse -> service.postLogout(
-                Objects.requireNonNull(Objects.requireNonNull(tokenResponse.query()).csrfToken())));
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/SessionManager.java

@@ -1,149 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.accounts.Account;
-import android.accounts.AccountManager;
-import android.content.Context;
-import android.os.Build;
-import android.text.TextUtils;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-import org.wikipedia.login.LoginResult;
-
-import javax.inject.Inject;
-import javax.inject.Named;
-import javax.inject.Singleton;
-
-import fr.free.nrw.commons.BuildConfig;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import io.reactivex.Completable;
-import io.reactivex.Observable;
-
-/**
- * Manage the current logged in user session.
- */
-@Singleton
-public class SessionManager {
-    private final Context context;
-    private Account currentAccount; // Unlike a savings account...  ;-)
-    private JsonKvStore defaultKvStore;
-
-    @Inject
-    public SessionManager(Context context,
-                          @Named("default_preferences") JsonKvStore defaultKvStore) {
-        this.context = context;
-        this.currentAccount = null;
-        this.defaultKvStore = defaultKvStore;
-    }
-
-    private boolean createAccount(@NonNull String userName, @NonNull String password) {
-        Account account = getCurrentAccount();
-        if (account == null || TextUtils.isEmpty(account.name) || !account.name.equals(userName)) {
-            removeAccount();
-            account = new Account(userName, BuildConfig.ACCOUNT_TYPE);
-            return accountManager().addAccountExplicitly(account, password, null);
-        }
-        return true;
-    }
-
-    private void removeAccount() {
-        Account account = getCurrentAccount();
-        if (account != null) {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
-                accountManager().removeAccountExplicitly(account);
-            } else {
-                //noinspection deprecation
-                accountManager().removeAccount(account, null, null);
-            }
-        }
-    }
-
-    public void updateAccount(LoginResult result) {
-        boolean accountCreated = createAccount(result.getUserName(), result.getPassword());
-        if (accountCreated) {
-            setPassword(result.getPassword());
-        }
-    }
-
-    private void setPassword(@NonNull String password) {
-        Account account = getCurrentAccount();
-        if (account != null) {
-            accountManager().setPassword(account, password);
-        }
-    }
-
-    /**
-     * @return Account|null
-     */
-    @Nullable
-    public Account getCurrentAccount() {
-        if (currentAccount == null) {
-            AccountManager accountManager = AccountManager.get(context);
-            Account[] allAccounts = accountManager.getAccountsByType(BuildConfig.ACCOUNT_TYPE);
-            if (allAccounts.length != 0) {
-                currentAccount = allAccounts[0];
-            }
-        }
-        return currentAccount;
-    }
-
-    public boolean doesAccountExist() {
-        return getCurrentAccount() != null;
-    }
-
-    @Nullable
-    public String getUserName() {
-        Account account = getCurrentAccount();
-        return account == null ? null : account.name;
-    }
-
-    @Nullable
-    public String getPassword() {
-        Account account = getCurrentAccount();
-        return account == null ? null : accountManager().getPassword(account);
-    }
-
-    private AccountManager accountManager() {
-        return AccountManager.get(context);
-    }
-
-    public boolean isUserLoggedIn() {
-        return defaultKvStore.getBoolean("isUserLoggedIn", false);
-    }
-
-    void setUserLoggedIn(boolean isLoggedIn) {
-        defaultKvStore.putBoolean("isUserLoggedIn", isLoggedIn);
-    }
-
-    public void forceLogin(Context context) {
-        if (context != null) {
-            LoginActivity.startYourself(context);
-        }
-    }
-
-    /**
-     * 1. Clears existing accounts from account manager
-     * 2. Calls MediaWikiApi's logout function to clear cookies
-     * @return
-     */
-    public Completable logout() {
-        AccountManager accountManager = AccountManager.get(context);
-        Account[] allAccounts = accountManager.getAccountsByType(BuildConfig.ACCOUNT_TYPE);
-        return Completable.fromObservable(Observable.fromArray(allAccounts)
-                .map(a -> accountManager.removeAccount(a, null, null).getResult()))
-                .doOnComplete(() -> {
-                    currentAccount = null;
-                });
-    }
-
-    /**
-     * Return a corresponding boolean preference
-     *
-     * @param key
-     * @return
-     */
-    public boolean getPreference(String key) {
-        return defaultKvStore.getBoolean(key);
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/SessionManager.kt

@@ -0,0 +1,95 @@
+package fr.free.nrw.commons.auth
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.content.Context
+import android.os.Build
+import android.text.TextUtils
+import fr.free.nrw.commons.BuildConfig.ACCOUNT_TYPE
+import fr.free.nrw.commons.auth.login.LoginResult
+import fr.free.nrw.commons.kvstore.JsonKvStore
+import io.reactivex.Completable
+import io.reactivex.Observable
+import javax.inject.Inject
+import javax.inject.Named
+import javax.inject.Singleton
+
+/**
+ * Manage the current logged in user session.
+ */
+@Singleton
+class SessionManager @Inject constructor(
+    private val context: Context,
+    @param:Named("default_preferences") private val defaultKvStore: JsonKvStore
+) {
+    private val accountManager: AccountManager get() = AccountManager.get(context)
+
+    private var _currentAccount: Account? = null // Unlike a savings account...  ;-)
+    val currentAccount: Account? get() {
+        if (_currentAccount == null) {
+            val allAccounts = AccountManager.get(context).getAccountsByType(ACCOUNT_TYPE)
+            if (allAccounts.isNotEmpty()) {
+                _currentAccount = allAccounts[0]
+            }
+        }
+        return _currentAccount
+    }
+
+    val userName: String?
+        get() = currentAccount?.name
+
+    var password: String?
+        get() = currentAccount?.let { accountManager.getPassword(it) }
+        private set(value) {
+            currentAccount?.let { accountManager.setPassword(it, value) }
+        }
+
+    val isUserLoggedIn: Boolean
+        get() = defaultKvStore.getBoolean("isUserLoggedIn", false)
+
+    fun updateAccount(result: LoginResult) {
+        if (createAccount(result.userName!!, result.password!!)) {
+            password = result.password
+        }
+    }
+
+    fun doesAccountExist(): Boolean =
+        currentAccount != null
+
+    fun setUserLoggedIn(isLoggedIn: Boolean) =
+        defaultKvStore.putBoolean("isUserLoggedIn", isLoggedIn)
+
+    fun forceLogin(context: Context?) =
+        context?.let { LoginActivity.startYourself(it) }
+
+    fun getPreference(key: String): Boolean =
+        defaultKvStore.getBoolean(key)
+
+    fun logout(): Completable = Completable.fromObservable(
+        Observable.empty<Any>()
+            .doOnComplete {
+                removeAccount()
+                _currentAccount = null
+            }
+    )
+
+    private fun createAccount(userName: String, password: String): Boolean {
+        var account = currentAccount
+        if (account == null || TextUtils.isEmpty(account.name) || account.name != userName) {
+            removeAccount()
+            account = Account(userName, ACCOUNT_TYPE)
+            return accountManager.addAccountExplicitly(account, password, null)
+        }
+        return true
+    }
+
+    private fun removeAccount() {
+        currentAccount?.let {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
+                accountManager.removeAccountExplicitly(it)
+            } else {
+                accountManager.removeAccount(it, null, null)
+            }
+        }
+    }
+}

app/src/main/java/fr/free/nrw/commons/auth/SignupActivity.java

@@ -1,82 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.content.res.Configuration;
-import android.os.Build;
-import android.os.Bundle;
-import android.webkit.WebSettings;
-import android.webkit.WebView;
-import android.webkit.WebViewClient;
-import android.widget.Toast;
-
-import fr.free.nrw.commons.BuildConfig;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.theme.BaseActivity;
-import timber.log.Timber;
-
-public class SignupActivity extends BaseActivity {
-
-    private WebView webView;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        Timber.d("Signup Activity started");
-
-        webView = new WebView(this);
-        setContentView(webView);
-
-        webView.setWebViewClient(new MyWebViewClient());
-        WebSettings webSettings = webView.getSettings();
-        /*Needed to refresh Captcha. Might introduce XSS vulnerabilities, but we can
-         trust Wikimedia's site... right?*/
-        webSettings.setJavaScriptEnabled(true);
-
-        webView.loadUrl(BuildConfig.SIGNUP_LANDING_URL);
-    }
-
-    private class MyWebViewClient extends WebViewClient {
-        @Override
-        public boolean shouldOverrideUrlLoading(WebView view, String url) {
-            if (url.equals(BuildConfig.SIGNUP_SUCCESS_REDIRECTION_URL)) {
-                //Signup success, so clear cookies, notify user, and load LoginActivity again
-                Timber.d("Overriding URL %s", url);
-
-                Toast toast = Toast.makeText(SignupActivity.this,
-                        R.string.account_created, Toast.LENGTH_LONG);
-                toast.show();
-                // terminate on task completion.
-                finish();
-                return true;
-            } else {
-                //If user clicks any other links in the webview
-                Timber.d("Not overriding URL, URL is: %s", url);
-                return false;
-            }
-        }
-    }
-
-    @Override
-    public void onBackPressed() {
-        if (webView.canGoBack()) {
-            webView.goBack();
-        } else {
-            super.onBackPressed();
-        }
-    }
-
-    /**
-     * Known bug in androidx.appcompat library version 1.1.0 being tracked here
-     * https://issuetracker.google.com/issues/141132133
-     * App tries to put light/dark theme to webview and crashes in the process
-     * This code tries to prevent applying the theme when sdk is between api 21 to 25
-     * @param overrideConfiguration
-     */
-    @Override
-    public void applyOverrideConfiguration(final Configuration overrideConfiguration) {
-        if (Build.VERSION.SDK_INT <= 25 &&
-            (getResources().getConfiguration().uiMode == getApplicationContext().getResources().getConfiguration().uiMode)) {
-            return;
-        }
-        super.applyOverrideConfiguration(overrideConfiguration);
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/SignupActivity.kt

@@ -0,0 +1,77 @@
+package fr.free.nrw.commons.auth
+
+import android.annotation.SuppressLint
+import android.content.res.Configuration
+import android.os.Build
+import android.os.Bundle
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import android.widget.Toast
+import fr.free.nrw.commons.BuildConfig
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.theme.BaseActivity
+import fr.free.nrw.commons.utils.applyEdgeToEdgeAllInsets
+import timber.log.Timber
+
+class SignupActivity : BaseActivity() {
+    private var webView: WebView? = null
+
+    @SuppressLint("SetJavaScriptEnabled")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        Timber.d("Signup Activity started")
+
+        webView = WebView(this)
+        applyEdgeToEdgeAllInsets(webView!!)
+        with(webView!!) {
+            setContentView(this)
+            webViewClient = MyWebViewClient()
+            // Needed to refresh Captcha. Might introduce XSS vulnerabilities, but we can
+            // trust Wikimedia's site... right?
+            settings.javaScriptEnabled = true
+            loadUrl(BuildConfig.SIGNUP_LANDING_URL)
+        }
+    }
+
+    override fun onBackPressed() {
+        if (webView!!.canGoBack()) {
+            webView!!.goBack()
+        } else {
+            super.onBackPressed()
+        }
+    }
+
+    /**
+     * Known bug in androidx.appcompat library version 1.1.0 being tracked here
+     * https://issuetracker.google.com/issues/141132133
+     * App tries to put light/dark theme to webview and crashes in the process
+     * This code tries to prevent applying the theme when sdk is between api 21 to 25
+     */
+    override fun applyOverrideConfiguration(overrideConfiguration: Configuration) {
+        if (Build.VERSION.SDK_INT <= 25 &&
+            (resources.configuration.uiMode == applicationContext.resources.configuration.uiMode)
+        ) return
+        super.applyOverrideConfiguration(overrideConfiguration)
+    }
+
+    private inner class MyWebViewClient : WebViewClient() {
+        @Deprecated("Deprecated in Java")
+        override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean =
+            if (url == BuildConfig.SIGNUP_SUCCESS_REDIRECTION_URL) {
+                //Signup success, so clear cookies, notify user, and load LoginActivity again
+                Timber.d("Overriding URL %s", url)
+
+                Toast.makeText(
+                    this@SignupActivity, R.string.account_created, Toast.LENGTH_LONG
+                ).show()
+
+                // terminate on task completion.
+                finish()
+                true
+            } else {
+                //If user clicks any other links in the webview
+                Timber.d("Not overriding URL, URL is: %s", url)
+                false
+            }
+    }
+}

app/src/main/java/fr/free/nrw/commons/auth/WikiAccountAuthenticator.java

@@ -1,141 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.accounts.AbstractAccountAuthenticator;
-import android.accounts.Account;
-import android.accounts.AccountAuthenticatorResponse;
-import android.accounts.AccountManager;
-import android.accounts.NetworkErrorException;
-import android.content.ContentResolver;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-import fr.free.nrw.commons.BuildConfig;
-
-import static fr.free.nrw.commons.auth.AccountUtil.AUTH_TOKEN_TYPE;
-
-/**
- * Handles WikiMedia commons account Authentication
- */
-public class WikiAccountAuthenticator extends AbstractAccountAuthenticator {
-    private static final String[] SYNC_AUTHORITIES = {BuildConfig.CONTRIBUTION_AUTHORITY, BuildConfig.MODIFICATION_AUTHORITY};
-
-    @NonNull
-    private final Context context;
-
-    public WikiAccountAuthenticator(@NonNull Context context) {
-        super(context);
-        this.context = context;
-    }
-
-    /**
-     * Provides Bundle with edited Account Properties 
-     */
-    @Override
-    public Bundle editProperties(AccountAuthenticatorResponse response, String accountType) {
-        Bundle bundle = new Bundle();
-        bundle.putString("test", "editProperties");
-        return bundle;
-    }
-
-    @Override
-    public Bundle addAccount(@NonNull AccountAuthenticatorResponse response,
-                             @NonNull String accountType, @Nullable String authTokenType,
-                             @Nullable String[] requiredFeatures, @Nullable Bundle options)
-            throws NetworkErrorException {
-        // account type not supported returns bundle without loginActivity Intent, it just contains "test" key 
-        if (!supportedAccountType(accountType)) {
-            Bundle bundle = new Bundle();
-            bundle.putString("test", "addAccount");
-            return bundle;
-        }
-
-        return addAccount(response);
-    }
-
-    @Override
-    public Bundle confirmCredentials(@NonNull AccountAuthenticatorResponse response,
-                                     @NonNull Account account, @Nullable Bundle options)
-            throws NetworkErrorException {
-        Bundle bundle = new Bundle();
-        bundle.putString("test", "confirmCredentials");
-        return bundle;
-    }
-
-    @Override
-    public Bundle getAuthToken(@NonNull AccountAuthenticatorResponse response,
-                               @NonNull Account account, @NonNull String authTokenType,
-                               @Nullable Bundle options)
-            throws NetworkErrorException {
-        Bundle bundle = new Bundle();
-        bundle.putString("test", "getAuthToken");
-        return bundle;
-    }
-
-    @Nullable
-    @Override
-    public String getAuthTokenLabel(@NonNull String authTokenType) {
-        return supportedAccountType(authTokenType) ? AUTH_TOKEN_TYPE : null;
-    }
-
-    @Nullable
-    @Override
-    public Bundle updateCredentials(@NonNull AccountAuthenticatorResponse response,
-                                    @NonNull Account account, @Nullable String authTokenType,
-                                    @Nullable Bundle options)
-            throws NetworkErrorException {
-        Bundle bundle = new Bundle();
-        bundle.putString("test", "updateCredentials");
-        return bundle;
-    }
-
-    @Nullable
-    @Override
-    public Bundle hasFeatures(@NonNull AccountAuthenticatorResponse response,
-                              @NonNull Account account, @NonNull String[] features)
-            throws NetworkErrorException {
-        Bundle bundle = new Bundle();
-        bundle.putBoolean(AccountManager.KEY_BOOLEAN_RESULT, false);
-        return bundle;
-    }
-
-    private boolean supportedAccountType(@Nullable String type) {
-        return BuildConfig.ACCOUNT_TYPE.equals(type);
-    }
-
-    /**
-     * Provides a bundle containing a Parcel 
-     * the Parcel packs an Intent with LoginActivity and Authenticator response (requires valid account type)
-     */
-    private Bundle addAccount(AccountAuthenticatorResponse response) {
-        Intent intent = new Intent(context, LoginActivity.class);
-        intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response);
-
-        Bundle bundle = new Bundle();
-        bundle.putParcelable(AccountManager.KEY_INTENT, intent);
-
-        return bundle;
-    }
-
-    @Override
-    public Bundle getAccountRemovalAllowed(AccountAuthenticatorResponse response,
-                                           Account account) throws NetworkErrorException {
-        Bundle result = super.getAccountRemovalAllowed(response, account);
-
-        if (result.containsKey(AccountManager.KEY_BOOLEAN_RESULT)
-                && !result.containsKey(AccountManager.KEY_INTENT)) {
-            boolean allowed = result.getBoolean(AccountManager.KEY_BOOLEAN_RESULT);
-
-            if (allowed) {
-                for (String auth : SYNC_AUTHORITIES) {
-                    ContentResolver.cancelSync(account, auth);
-                }
-            }
-        }
-
-        return result;
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/WikiAccountAuthenticator.kt

@@ -0,0 +1,108 @@
+package fr.free.nrw.commons.auth
+
+import android.accounts.AbstractAccountAuthenticator
+import android.accounts.Account
+import android.accounts.AccountAuthenticatorResponse
+import android.accounts.AccountManager
+import android.accounts.NetworkErrorException
+import android.content.ContentResolver
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import androidx.core.os.bundleOf
+import fr.free.nrw.commons.BuildConfig
+
+private val SYNC_AUTHORITIES = arrayOf(
+    BuildConfig.CONTRIBUTION_AUTHORITY, BuildConfig.MODIFICATION_AUTHORITY
+)
+
+/**
+ * Handles WikiMedia commons account Authentication
+ */
+class WikiAccountAuthenticator(
+    private val context: Context
+) : AbstractAccountAuthenticator(context) {
+    /**
+     * Provides Bundle with edited Account Properties
+     */
+    override fun editProperties(
+        response: AccountAuthenticatorResponse,
+        accountType: String
+    ) = bundleOf("test" to "editProperties")
+
+    // account type not supported returns bundle without loginActivity Intent, it just contains "test" key
+    @Throws(NetworkErrorException::class)
+    override fun addAccount(
+        response: AccountAuthenticatorResponse,
+        accountType: String,
+        authTokenType: String?,
+        requiredFeatures: Array<String>?,
+        options: Bundle?
+    ) = if (BuildConfig.ACCOUNT_TYPE == accountType) {
+        addAccount(response)
+    } else {
+        bundleOf("test" to "addAccount")
+    }
+
+    @Throws(NetworkErrorException::class)
+    override fun confirmCredentials(
+        response: AccountAuthenticatorResponse, account: Account, options: Bundle?
+    ) = bundleOf("test" to "confirmCredentials")
+
+    @Throws(NetworkErrorException::class)
+    override fun getAuthToken(
+        response: AccountAuthenticatorResponse,
+        account: Account,
+        authTokenType: String,
+        options: Bundle?
+    ) = bundleOf("test" to "getAuthToken")
+
+    override fun getAuthTokenLabel(authTokenType: String) =
+        if (BuildConfig.ACCOUNT_TYPE == authTokenType) AUTH_TOKEN_TYPE else null
+
+    @Throws(NetworkErrorException::class)
+    override fun updateCredentials(
+        response: AccountAuthenticatorResponse,
+        account: Account,
+        authTokenType: String?,
+        options: Bundle?
+    ) = bundleOf("test" to "updateCredentials")
+
+    @Throws(NetworkErrorException::class)
+    override fun hasFeatures(
+        response: AccountAuthenticatorResponse,
+        account: Account, features: Array<String>
+    ) = bundleOf(AccountManager.KEY_BOOLEAN_RESULT to false)
+
+    /**
+     * Provides a bundle containing a Parcel
+     * the Parcel packs an Intent with LoginActivity and Authenticator response (requires valid account type)
+     */
+    private fun addAccount(response: AccountAuthenticatorResponse): Bundle {
+        val intent = Intent(context, LoginActivity::class.java)
+            .putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response)
+        return bundleOf(AccountManager.KEY_INTENT to intent)
+    }
+
+    @Throws(NetworkErrorException::class)
+    override fun getAccountRemovalAllowed(
+        response: AccountAuthenticatorResponse?,
+        account: Account?
+    ): Bundle {
+        val result = super.getAccountRemovalAllowed(response, account)
+
+        if (result.containsKey(AccountManager.KEY_BOOLEAN_RESULT)
+            && !result.containsKey(AccountManager.KEY_INTENT)
+        ) {
+            val allowed = result.getBoolean(AccountManager.KEY_BOOLEAN_RESULT)
+
+            if (allowed) {
+                for (auth in SYNC_AUTHORITIES) {
+                    ContentResolver.cancelSync(account, auth)
+                }
+            }
+        }
+
+        return result
+    }
+}

app/src/main/java/fr/free/nrw/commons/auth/WikiAccountAuthenticatorService.java

@@ -1,31 +0,0 @@
-package fr.free.nrw.commons.auth;
-
-import android.accounts.AbstractAccountAuthenticator;
-import android.content.Intent;
-import android.os.IBinder;
-
-import androidx.annotation.Nullable;
-
-import fr.free.nrw.commons.di.CommonsDaggerService;
-
-/**
- * Handles the Auth service of the App, see AndroidManifests for details
- * (Uses Dagger 2 as injector)
- */
-public class WikiAccountAuthenticatorService extends CommonsDaggerService {
-
-    @Nullable
-    private AbstractAccountAuthenticator authenticator;
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        authenticator = new WikiAccountAuthenticator(this);
-    }
-
-    @Nullable
-    @Override
-    public IBinder onBind(Intent intent) {
-        return authenticator == null ? null : authenticator.getIBinder();
-    }
-}

app/src/main/java/fr/free/nrw/commons/auth/WikiAccountAuthenticatorService.kt

@@ -0,0 +1,22 @@
+package fr.free.nrw.commons.auth
+
+import android.accounts.AbstractAccountAuthenticator
+import android.content.Intent
+import android.os.IBinder
+import fr.free.nrw.commons.di.CommonsDaggerService
+
+/**
+ * Handles the Auth service of the App, see AndroidManifests for details
+ * (Uses Dagger 2 as injector)
+ */
+class WikiAccountAuthenticatorService : CommonsDaggerService() {
+    private var authenticator: AbstractAccountAuthenticator? = null
+
+    override fun onCreate() {
+        super.onCreate()
+        authenticator = WikiAccountAuthenticator(this)
+    }
+
+    override fun onBind(intent: Intent): IBinder? =
+        authenticator?.iBinder
+}

app/src/main/java/fr/free/nrw/commons/auth/csrf/CsrfTokenClient.kt

@@ -0,0 +1,217 @@
+package fr.free.nrw.commons.auth.csrf
+
+import androidx.annotation.VisibleForTesting
+import fr.free.nrw.commons.auth.SessionManager
+import fr.free.nrw.commons.auth.login.LoginCallback
+import fr.free.nrw.commons.auth.login.LoginClient
+import fr.free.nrw.commons.auth.login.LoginFailedException
+import fr.free.nrw.commons.auth.login.LoginResult
+import fr.free.nrw.commons.wikidata.mwapi.MwQueryResponse
+import retrofit2.Call
+import retrofit2.Response
+import timber.log.Timber
+import java.util.concurrent.Callable
+import java.util.concurrent.Executors.newSingleThreadExecutor
+
+class CsrfTokenClient(
+    private val sessionManager: SessionManager,
+    private val csrfTokenInterface: CsrfTokenInterface,
+    private val loginClient: LoginClient,
+    private val logoutClient: LogoutClient,
+) {
+    private var retries = 0
+    private var csrfTokenCall: Call<MwQueryResponse?>? = null
+
+    @Throws(Throwable::class)
+    fun getTokenBlocking(): String {
+        var token = ""
+        val userName = sessionManager.userName ?: ""
+        val password = sessionManager.password ?: ""
+
+        for (retry in 0 until MAX_RETRIES_OF_LOGIN_BLOCKING) {
+            try {
+                if (retry > 0) {
+                    // Log in explicitly
+                    loginClient.loginBlocking(userName, password)
+                }
+
+                // Get CSRFToken response off the main thread.
+                val response =
+                    newSingleThreadExecutor()
+                        .submit(
+                            Callable {
+                                csrfTokenInterface.getCsrfTokenCall().execute()
+                            },
+                        ).get()
+
+                if (response
+                        .body()
+                        ?.query()
+                        ?.csrfToken()
+                        .isNullOrEmpty()
+                ) {
+                    continue
+                }
+
+                token = response.body()!!.query()!!.csrfToken()!!
+                if (sessionManager.isUserLoggedIn && token == ANON_TOKEN) {
+                    throw InvalidLoginTokenException(ANONYMOUS_TOKEN_MESSAGE)
+                }
+                break
+            } catch (e: LoginFailedException) {
+                throw InvalidLoginTokenException(ANONYMOUS_TOKEN_MESSAGE)
+            } catch (t: Throwable) {
+                Timber.w(t)
+            }
+        }
+
+        if (token.isEmpty() || token == ANON_TOKEN) {
+            throw InvalidLoginTokenException(ANONYMOUS_TOKEN_MESSAGE)
+        }
+        return token
+    }
+
+    @VisibleForTesting
+    fun request(
+        service: CsrfTokenInterface,
+        cb: Callback,
+    ): Call<MwQueryResponse?> =
+        requestToken(
+            service,
+            object : Callback {
+                override fun success(token: String?) {
+                    if (sessionManager.isUserLoggedIn && token == ANON_TOKEN) {
+                        retryWithLogin(cb) {
+                            InvalidLoginTokenException(ANONYMOUS_TOKEN_MESSAGE)
+                        }
+                    } else {
+                        cb.success(token)
+                    }
+                }
+
+                override fun failure(caught: Throwable?) = retryWithLogin(cb) { caught }
+
+                override fun twoFactorPrompt() = cb.twoFactorPrompt()
+
+                override fun emailAuthPrompt() = cb.emailAuthPrompt()
+            },
+        )
+
+    @VisibleForTesting
+    fun requestToken(
+        service: CsrfTokenInterface,
+        cb: Callback,
+    ): Call<MwQueryResponse?> {
+        val call = service.getCsrfTokenCall()
+        call.enqueue(
+            object : retrofit2.Callback<MwQueryResponse?> {
+                override fun onResponse(
+                    call: Call<MwQueryResponse?>,
+                    response: Response<MwQueryResponse?>,
+                ) {
+                    if (call.isCanceled) {
+                        return
+                    }
+                    cb.success(response.body()!!.query()!!.csrfToken())
+                }
+
+                override fun onFailure(
+                    call: Call<MwQueryResponse?>,
+                    t: Throwable,
+                ) {
+                    if (call.isCanceled) {
+                        return
+                    }
+                    cb.failure(t)
+                }
+            },
+        )
+        return call
+    }
+
+    private fun retryWithLogin(
+        callback: Callback,
+        caught: () -> Throwable?,
+    ) {
+        val userName = sessionManager.userName
+        val password = sessionManager.password
+        if (retries < MAX_RETRIES && !userName.isNullOrEmpty() && !password.isNullOrEmpty()) {
+            retries++
+            logoutClient.logout()
+            login(userName, password, callback) {
+                Timber.i("retrying...")
+                cancel()
+                csrfTokenCall = request(csrfTokenInterface, callback)
+            }
+        } else {
+            callback.failure(caught())
+        }
+    }
+
+    private fun login(
+        username: String,
+        password: String,
+        callback: Callback,
+        retryCallback: () -> Unit,
+    ) = loginClient.request(
+        username,
+        password,
+        object : LoginCallback {
+            override fun success(loginResult: LoginResult) {
+                if (loginResult.pass) {
+                    sessionManager.updateAccount(loginResult)
+                    retryCallback()
+                } else {
+                    callback.failure(LoginFailedException(loginResult.message))
+                }
+            }
+
+            override fun twoFactorPrompt(
+                loginResult: LoginResult,
+                caught: Throwable,
+                token: String?,
+            ) = callback.twoFactorPrompt()
+
+            override fun emailAuthPrompt(
+                loginResult: LoginResult,
+                caught: Throwable,
+                token: String?,
+            ) = callback.emailAuthPrompt()
+
+            // Should not happen here, but call the callback just in case.
+            override fun passwordResetPrompt(token: String?) = callback.failure(LoginFailedException("Logged in with temporary password."))
+
+            override fun error(caught: Throwable) = callback.failure(caught)
+        },
+    )
+
+    private fun cancel() {
+        loginClient.cancel()
+        if (csrfTokenCall != null) {
+            csrfTokenCall!!.cancel()
+            csrfTokenCall = null
+        }
+    }
+
+    interface Callback {
+        fun success(token: String?)
+
+        fun failure(caught: Throwable?)
+
+        fun twoFactorPrompt()
+
+        fun emailAuthPrompt()
+    }
+
+    companion object {
+        private const val ANON_TOKEN = "+\\"
+        private const val MAX_RETRIES = 1
+        private const val MAX_RETRIES_OF_LOGIN_BLOCKING = 2
+        const val INVALID_TOKEN_ERROR_MESSAGE = "Invalid token, or login failure."
+        const val ANONYMOUS_TOKEN_MESSAGE = "App believes we're logged in, but got anonymous token."
+    }
+}
+
+class InvalidLoginTokenException(
+    message: String,
+) : Exception(message)

app/src/main/java/fr/free/nrw/commons/auth/csrf/CsrfTokenInterface.kt

@@ -0,0 +1,13 @@
+package fr.free.nrw.commons.auth.csrf
+
+import fr.free.nrw.commons.wikidata.WikidataConstants.MW_API_PREFIX
+import fr.free.nrw.commons.wikidata.mwapi.MwQueryResponse
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Headers
+
+interface CsrfTokenInterface {
+    @Headers("Cache-Control: no-cache")
+    @GET(MW_API_PREFIX + "action=query&meta=tokens&type=csrf")
+    fun getCsrfTokenCall(): Call<MwQueryResponse?>
+}

app/src/main/java/fr/free/nrw/commons/auth/csrf/LogoutClient.kt

@@ -0,0 +1,12 @@
+package fr.free.nrw.commons.auth.csrf
+
+import fr.free.nrw.commons.wikidata.cookies.CommonsCookieStorage
+import javax.inject.Inject
+
+class LogoutClient
+    @Inject
+    constructor(
+        private val store: CommonsCookieStorage,
+    ) {
+        fun logout() = store.clear()
+    }

app/src/main/java/fr/free/nrw/commons/auth/login/LoginCallback.kt

@@ -0,0 +1,21 @@
+package fr.free.nrw.commons.auth.login
+
+interface LoginCallback {
+    fun success(loginResult: LoginResult)
+
+    fun twoFactorPrompt(
+        loginResult: LoginResult,
+        caught: Throwable,
+        token: String?,
+    )
+
+    fun emailAuthPrompt(
+        loginResult: LoginResult,
+        caught: Throwable,
+        token: String?,
+    )
+
+    fun passwordResetPrompt(token: String?)
+
+    fun error(caught: Throwable)
+}

app/src/main/java/fr/free/nrw/commons/auth/login/LoginClient.kt

@@ -0,0 +1,276 @@
+package fr.free.nrw.commons.auth.login
+
+import android.text.TextUtils
+import fr.free.nrw.commons.auth.login.LoginResult.EmailAuthResult
+import fr.free.nrw.commons.auth.login.LoginResult.OAuthResult
+import fr.free.nrw.commons.auth.login.LoginResult.ResetPasswordResult
+import fr.free.nrw.commons.wikidata.WikidataConstants.WIKIPEDIA_URL
+import fr.free.nrw.commons.wikidata.mwapi.MwQueryResponse
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.schedulers.Schedulers
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+import timber.log.Timber
+import java.io.IOException
+
+/**
+ * Responsible for making login related requests to the server.
+ */
+class LoginClient(
+    private val loginInterface: LoginInterface,
+) {
+    private var tokenCall: Call<MwQueryResponse?>? = null
+    private var loginCall: Call<LoginResponse?>? = null
+
+    /**
+     * userLanguage
+     * It holds the value of the user's device language code.
+     * For example, if user's device language is English it will hold En
+     * The value will be fetched when the user clicks Login Button in the LoginActivity
+     */
+    private var userLanguage = ""
+
+    private fun getLoginToken() = loginInterface.getLoginToken()
+
+    fun request(
+        userName: String,
+        password: String,
+        cb: LoginCallback,
+    ) {
+        cancel()
+
+        tokenCall = getLoginToken()
+        tokenCall!!.enqueue(
+            object : Callback<MwQueryResponse?> {
+                override fun onResponse(
+                    call: Call<MwQueryResponse?>,
+                    response: Response<MwQueryResponse?>,
+                ) {
+                    login(
+                        userName,
+                        password,
+                        null,
+                        null,
+                        null,
+                        response.body()!!.query()!!.loginToken(),
+                        userLanguage,
+                        cb,
+                    )
+                }
+
+                override fun onFailure(
+                    call: Call<MwQueryResponse?>,
+                    caught: Throwable,
+                ) {
+                    if (call.isCanceled) {
+                        return
+                    }
+                    cb.error(caught)
+                }
+            },
+        )
+    }
+
+    fun login(
+        userName: String,
+        password: String,
+        retypedPassword: String?,
+        twoFactorCode: String?,
+        emailAuthCode: String?,
+        loginToken: String?,
+        userLanguage: String,
+        cb: LoginCallback,
+    ) {
+        this.userLanguage = userLanguage
+
+        loginCall =
+            if (twoFactorCode.isNullOrEmpty() && emailAuthCode.isNullOrEmpty() && retypedPassword.isNullOrEmpty()) {
+                loginInterface.postLogIn(userName, password, loginToken, userLanguage, WIKIPEDIA_URL)
+            } else {
+                loginInterface.postLogIn(
+                    userName,
+                    password,
+                    retypedPassword,
+                    twoFactorCode,
+                    emailAuthCode,
+                    loginToken,
+                    userLanguage,
+                    true,
+                )
+            }
+
+        loginCall!!.enqueue(
+            object : Callback<LoginResponse?> {
+                override fun onResponse(
+                    call: Call<LoginResponse?>,
+                    response: Response<LoginResponse?>,
+                ) {
+                    val loginResult = response.body()?.toLoginResult(password)
+                    if (loginResult != null) {
+                        if (loginResult.pass && !loginResult.userName.isNullOrEmpty()) {
+                            // The server could do some transformations on user names, e.g. on some
+                            // wikis is uppercases the first letter.
+                            getExtendedInfo(loginResult.userName, loginResult, cb)
+                        } else if ("UI" == loginResult.status) {
+                            when (loginResult) {
+                                is OAuthResult ->
+                                    cb.twoFactorPrompt(
+                                        loginResult,
+                                        LoginFailedException(loginResult.message),
+                                        loginToken,
+                                    )
+
+                                is EmailAuthResult ->
+                                    cb.emailAuthPrompt(
+                                        loginResult,
+                                        LoginFailedException(loginResult.message),
+                                        loginToken
+                                    )
+
+                                is ResetPasswordResult -> cb.passwordResetPrompt(loginToken)
+
+                                is LoginResult.Result ->
+                                    cb.error(
+                                        LoginFailedException(loginResult.message),
+                                    )
+                            }
+                        } else {
+                            cb.error(LoginFailedException(loginResult.message))
+                        }
+                    } else {
+                        cb.error(IOException("Login failed. Unexpected response."))
+                    }
+                }
+
+                override fun onFailure(
+                    call: Call<LoginResponse?>,
+                    t: Throwable,
+                ) {
+                    if (call.isCanceled) {
+                        return
+                    }
+                    cb.error(t)
+                }
+            },
+        )
+    }
+
+    fun doLogin(
+        username: String,
+        password: String,
+        lastLoginResult: LoginResult?,
+        twoFactorCode: String,
+        userLanguage: String,
+        loginCallback: LoginCallback,
+    ) {
+        getLoginToken().enqueue(
+            object : Callback<MwQueryResponse?> {
+                override fun onResponse(
+                    call: Call<MwQueryResponse?>,
+                    response: Response<MwQueryResponse?>,
+                ) = if (response.isSuccessful) {
+                    val loginToken = response.body()?.query()?.loginToken()
+                    loginToken?.let {
+                        login(username, password, null,
+                            if (lastLoginResult is OAuthResult) twoFactorCode else null,
+                            if (lastLoginResult is EmailAuthResult) twoFactorCode else null,
+                            it, userLanguage, loginCallback)
+                    } ?: run {
+                        loginCallback.error(IOException("Failed to retrieve login token"))
+                    }
+                } else {
+                    loginCallback.error(IOException("Failed to retrieve login token"))
+                }
+
+                override fun onFailure(
+                    call: Call<MwQueryResponse?>,
+                    t: Throwable,
+                ) {
+                    loginCallback.error(t)
+                }
+            },
+        )
+    }
+
+    @Throws(Throwable::class)
+    fun loginBlocking(
+        userName: String,
+        password: String,
+        twoFactorCode: String? = null,
+        emailAuthCode: String? = null
+    ) {
+        val tokenResponse = getLoginToken().execute()
+        if (tokenResponse
+                .body()
+                ?.query()
+                ?.loginToken()
+                .isNullOrEmpty()
+        ) {
+            throw IOException("Unexpected response when getting login token.")
+        }
+
+        val loginToken = tokenResponse.body()?.query()?.loginToken()
+        val tempLoginCall =
+            if (twoFactorCode.isNullOrEmpty() && emailAuthCode.isNullOrEmpty()) {
+                loginInterface.postLogIn(userName, password, loginToken, userLanguage, WIKIPEDIA_URL)
+            } else {
+                loginInterface.postLogIn(
+                    userName,
+                    password,
+                    null,
+                    twoFactorCode,
+                    emailAuthCode,
+                    loginToken,
+                    userLanguage,
+                    true,
+                )
+            }
+
+        val response = tempLoginCall.execute()
+        val loginResponse = response.body() ?: throw IOException("Unexpected response when logging in.")
+        val loginResult = loginResponse.toLoginResult(password) ?: throw IOException("Unexpected response when logging in.")
+
+        if ("UI" == loginResult.status) {
+            if (loginResult is OAuthResult || loginResult is EmailAuthResult) {
+                // TODO: Find a better way to boil up the warning about 2FA
+                throw LoginFailedException(loginResult.message)
+            }
+            throw LoginFailedException(loginResult.message)
+        }
+
+        if (!loginResult.pass || TextUtils.isEmpty(loginResult.userName)) {
+            throw LoginFailedException(loginResult.message)
+        }
+    }
+
+    private fun getExtendedInfo(
+        userName: String,
+        loginResult: LoginResult,
+        cb: LoginCallback,
+    ) = loginInterface
+        .getUserInfo(userName)
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe({ response: MwQueryResponse? ->
+            loginResult.userId = response?.query()?.userInfo()?.id() ?: 0
+            loginResult.groups =
+                response?.query()?.getUserResponse(userName)?.getGroups() ?: emptySet()
+            cb.success(loginResult)
+        }, { caught: Throwable ->
+            Timber.e(caught, "Login succeeded but getting group information failed. ")
+            cb.error(caught)
+        })
+
+    fun cancel() {
+        tokenCall?.let {
+            it.cancel()
+            tokenCall = null
+        }
+
+        loginCall?.let {
+            it.cancel()
+            loginCall = null
+        }
+    }
+}

app/src/main/java/fr/free/nrw/commons/auth/login/LoginFailedException.kt

@@ -0,0 +1,5 @@
+package fr.free.nrw.commons.auth.login
+
+class LoginFailedException(
+    message: String?,
+) : Throwable(message)

app/src/main/java/fr/free/nrw/commons/auth/login/LoginInterface.kt

@@ -0,0 +1,48 @@
+package fr.free.nrw.commons.auth.login
+
+import fr.free.nrw.commons.wikidata.WikidataConstants.MW_API_PREFIX
+import fr.free.nrw.commons.wikidata.mwapi.MwQueryResponse
+import io.reactivex.Observable
+import retrofit2.Call
+import retrofit2.http.Field
+import retrofit2.http.FormUrlEncoded
+import retrofit2.http.GET
+import retrofit2.http.Headers
+import retrofit2.http.POST
+import retrofit2.http.Query
+
+interface LoginInterface {
+    @Headers("Cache-Control: no-cache")
+    @GET(MW_API_PREFIX + "action=query&meta=tokens&type=login")
+    fun getLoginToken(): Call<MwQueryResponse?>
+
+    @Headers("Cache-Control: no-cache")
+    @FormUrlEncoded
+    @POST(MW_API_PREFIX + "action=clientlogin&rememberMe=")
+    fun postLogIn(
+        @Field("username") user: String?,
+        @Field("password") pass: String?,
+        @Field("logintoken") token: String?,
+        @Field("uselang") userLanguage: String?,
+        @Field("loginreturnurl") url: String?,
+    ): Call<LoginResponse?>
+
+    @Headers("Cache-Control: no-cache")
+    @FormUrlEncoded
+    @POST(MW_API_PREFIX + "action=clientlogin&rememberMe=")
+    fun postLogIn(
+        @Field("username") user: String?,
+        @Field("password") pass: String?,
+        @Field("retype") retypedPass: String?,
+        @Field("OATHToken") twoFactorCode: String?,
+        @Field("token") emailAuthToken: String?,
+        @Field("logintoken") loginToken: String?,
+        @Field("uselang") userLanguage: String?,
+        @Field("logincontinue") loginContinue: Boolean,
+    ): Call<LoginResponse?>
+
+    @GET(MW_API_PREFIX + "action=query&meta=userinfo&list=users&usprop=groups|cancreate")
+    fun getUserInfo(
+        @Query("ususers") userName: String,
+    ): Observable<MwQueryResponse?>
+}

app/src/main/java/fr/free/nrw/commons/auth/login/LoginResponse.kt

@@ -0,0 +1,64 @@
+package fr.free.nrw.commons.auth.login
+
+import com.google.gson.annotations.SerializedName
+import fr.free.nrw.commons.auth.login.LoginResult.OAuthResult
+import fr.free.nrw.commons.auth.login.LoginResult.EmailAuthResult
+import fr.free.nrw.commons.auth.login.LoginResult.ResetPasswordResult
+import fr.free.nrw.commons.auth.login.LoginResult.Result
+import fr.free.nrw.commons.wikidata.mwapi.MwServiceError
+
+class LoginResponse {
+    @SerializedName("error")
+    val error: MwServiceError? = null
+
+    @SerializedName("clientlogin")
+    private val clientLogin: ClientLogin? = null
+
+    fun toLoginResult(password: String): LoginResult? = clientLogin?.toLoginResult(password)
+}
+
+internal class ClientLogin {
+    private val status: String? = null
+    private val requests: List<Request>? = null
+    private val message: String? = null
+
+    @SerializedName("username")
+    private val userName: String? = null
+
+    fun toLoginResult(password: String): LoginResult {
+        var userMessage = message
+        if ("UI" == status) {
+            requests?.forEach { request ->
+                request.id()?.let {
+                    if (it.endsWith("TOTPAuthenticationRequest")) {
+                        return OAuthResult(status, userName, password, message)
+                    } else if (it.endsWith("EmailAuthAuthenticationRequest")) {
+                        return EmailAuthResult(status, userName, password, message)
+                    } else if (it.endsWith("PasswordAuthenticationRequest")) {
+                        return ResetPasswordResult(status, userName, password, message)
+                    }
+                }
+            }
+        } else if ("PASS" != status && "FAIL" != status) {
+            // TODO: String resource -- Looks like needed for others in this class too
+            userMessage = "An unknown error occurred."
+        }
+        return Result(status ?: "", userName, password, userMessage)
+    }
+}
+
+internal class Request {
+    private val id: String? = null
+    private val required: String? = null
+    private val provider: String? = null
+    private val account: String? = null
+    internal val fields: Map<String, RequestField>? = null
+
+    fun id(): String? = id
+}
+
+internal class RequestField {
+    private val type: String? = null
+    private val label: String? = null
+    internal val help: String? = null
+}

app/src/main/java/fr/free/nrw/commons/auth/login/LoginResult.kt

@@ -0,0 +1,40 @@
+package fr.free.nrw.commons.auth.login
+
+sealed class LoginResult(
+    val status: String,
+    val userName: String?,
+    val password: String?,
+    val message: String?,
+) {
+    var userId = 0
+    var groups = emptySet<String>()
+    val pass: Boolean get() = "PASS" == status
+
+    class Result(
+        status: String,
+        userName: String?,
+        password: String?,
+        message: String?,
+    ) : LoginResult(status, userName, password, message)
+
+    class OAuthResult(
+        status: String,
+        userName: String?,
+        password: String?,
+        message: String?,
+    ) : LoginResult(status, userName, password, message)
+
+    class EmailAuthResult(
+        status: String,
+        userName: String?,
+        password: String?,
+        message: String?,
+    ) : LoginResult(status, userName, password, message)
+
+    class ResetPasswordResult(
+        status: String,
+        userName: String?,
+        password: String?,
+        message: String?,
+    ) : LoginResult(status, userName, password, message)
+}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkFragment.java

@@ -1,111 +0,0 @@
-package fr.free.nrw.commons.bookmarks;
-
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import android.widget.FrameLayout;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.fragment.app.FragmentManager;
-
-import com.google.android.material.tabs.TabLayout;
-
-import fr.free.nrw.commons.contributions.MainActivity;
-import fr.free.nrw.commons.di.CommonsDaggerSupportFragment;
-import fr.free.nrw.commons.explore.ParentViewPager;
-import fr.free.nrw.commons.kvstore.JsonKvStore;
-import fr.free.nrw.commons.theme.BaseActivity;
-import javax.inject.Inject;
-
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.contributions.ContributionController;
-import javax.inject.Named;
-
-public class BookmarkFragment extends CommonsDaggerSupportFragment {
-
-    private FragmentManager supportFragmentManager;
-    private BookmarksPagerAdapter adapter;
-    @BindView(R.id.viewPagerBookmarks)
-    ParentViewPager viewPager;
-    @BindView(R.id.tab_layout)
-    TabLayout tabLayout;
-    @BindView(R.id.fragmentContainer)
-    FrameLayout fragmentContainer;
-
-    @Inject
-    ContributionController controller;
-    /**
-     * To check if the user is loggedIn or not.
-     */
-    @Inject
-    @Named("default_preferences")
-    public
-    JsonKvStore applicationKvStore;
-
-    @NonNull
-    public static BookmarkFragment newInstance() {
-        BookmarkFragment fragment = new BookmarkFragment();
-        fragment.setRetainInstance(true);
-        return fragment;
-    }
-
-    public void setScroll(boolean canScroll) {
-        viewPager.setCanScroll(canScroll);
-    }
-
-    @Override
-    public void onCreate(@Nullable final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-    }
-
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater,
-        @Nullable final ViewGroup container,
-        @Nullable final Bundle savedInstanceState) {
-        super.onCreateView(inflater, container, savedInstanceState);
-        View view = inflater.inflate(R.layout.fragment_bookmarks, container, false);
-        ButterKnife.bind(this, view);
-
-        // Activity can call methods in the fragment by acquiring a
-        // reference to the Fragment from FragmentManager, using findFragmentById()
-        supportFragmentManager = getChildFragmentManager();
-
-        adapter = new BookmarksPagerAdapter(supportFragmentManager, getContext(),
-            applicationKvStore.getBoolean("login_skipped"));
-        viewPager.setAdapter(adapter);
-        tabLayout.setupWithViewPager(viewPager);
-
-        ((MainActivity) getActivity()).showTabs();
-        ((BaseActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
-
-        setupTabLayout();
-        return view;
-    }
-
-    /**
-     * This method sets up the tab layout. If the adapter has only one element it sets the
-     * visibility of tabLayout to gone.
-     */
-    public void setupTabLayout() {
-        tabLayout.setVisibility(View.VISIBLE);
-        if (adapter.getCount() == 1) {
-            tabLayout.setVisibility(View.GONE);
-        }
-    }
-
-
-    public void onBackPressed() {
-        if (((BookmarkListRootFragment) (adapter.getItem(tabLayout.getSelectedTabPosition())))
-            .backPressed()) {
-            // The event is handled internally by the adapter , no further action required.
-            return;
-        }
-        // Event is not handled by the adapter ( performed back action ) change action bar.
-        ((BaseActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
-    }
-}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkFragment.kt

@@ -0,0 +1,98 @@
+package fr.free.nrw.commons.bookmarks
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import fr.free.nrw.commons.contributions.ContributionController
+import fr.free.nrw.commons.contributions.MainActivity
+import fr.free.nrw.commons.databinding.FragmentBookmarksBinding
+import fr.free.nrw.commons.di.CommonsDaggerSupportFragment
+import fr.free.nrw.commons.kvstore.JsonKvStore
+import fr.free.nrw.commons.theme.BaseActivity
+import javax.inject.Inject
+import javax.inject.Named
+
+class BookmarkFragment : CommonsDaggerSupportFragment() {
+    private var adapter: BookmarksPagerAdapter? = null
+
+    @JvmField
+    var binding: FragmentBookmarksBinding? = null
+
+    @JvmField
+    @Inject
+    var controller: ContributionController? = null
+
+    /**
+     * To check if the user is loggedIn or not.
+     */
+    @JvmField
+    @Inject
+    @Named("default_preferences")
+    var applicationKvStore: JsonKvStore? = null
+
+    fun setScroll(canScroll: Boolean) {
+        binding?.let {
+            it.viewPagerBookmarks.canScroll = canScroll
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        super.onCreateView(inflater, container, savedInstanceState)
+        binding = FragmentBookmarksBinding.inflate(inflater, container, false)
+
+        // Activity can call methods in the fragment by acquiring a
+        // reference to the Fragment from FragmentManager, using findFragmentById()
+        val supportFragmentManager = childFragmentManager
+
+        adapter = BookmarksPagerAdapter(
+            supportFragmentManager, requireContext(),
+            applicationKvStore!!.getBoolean("login_skipped")
+        )
+        binding!!.viewPagerBookmarks.adapter = adapter
+        binding!!.tabLayout.setupWithViewPager(binding!!.viewPagerBookmarks)
+
+        (requireActivity() as MainActivity).showTabs()
+        (requireActivity() as BaseActivity).supportActionBar!!.setDisplayHomeAsUpEnabled(false)
+
+        setupTabLayout()
+        return binding!!.root
+    }
+
+    /**
+     * This method sets up the tab layout. If the adapter has only one element it sets the
+     * visibility of tabLayout to gone.
+     */
+    fun setupTabLayout() {
+        binding!!.tabLayout.visibility = View.VISIBLE
+        if (adapter!!.count == 1) {
+            binding!!.tabLayout.visibility = View.GONE
+        }
+    }
+
+
+    fun onBackPressed() {
+        if (((adapter!!.getItem(binding!!.tabLayout.selectedTabPosition)) as BookmarkListRootFragment).backPressed()) {
+            // The event is handled internally by the adapter , no further action required.
+            return
+        }
+
+        // Event is not handled by the adapter ( performed back action ) change action bar.
+        (requireActivity() as BaseActivity).supportActionBar!!.setDisplayHomeAsUpEnabled(false)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        binding = null
+    }
+
+    companion object {
+        fun newInstance(): BookmarkFragment = BookmarkFragment().apply {
+            retainInstance = true
+        }
+    }
+}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkListRootFragment.java

@@ -1,256 +0,0 @@
-package fr.free.nrw.commons.bookmarks;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.AdapterView;
-import android.widget.FrameLayout;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-import butterknife.BindView;
-import butterknife.ButterKnife;
-import fr.free.nrw.commons.Media;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.bookmarks.items.BookmarkItemsFragment;
-import fr.free.nrw.commons.bookmarks.locations.BookmarkLocationsFragment;
-import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesFragment;
-import fr.free.nrw.commons.category.CategoryImagesCallback;
-import fr.free.nrw.commons.category.GridViewAdapter;
-import fr.free.nrw.commons.contributions.MainActivity;
-import fr.free.nrw.commons.di.CommonsDaggerSupportFragment;
-import fr.free.nrw.commons.media.MediaDetailPagerFragment;
-import fr.free.nrw.commons.navtab.NavTab;
-import java.util.ArrayList;
-import java.util.Iterator;
-
-public class BookmarkListRootFragment extends CommonsDaggerSupportFragment implements
-    FragmentManager.OnBackStackChangedListener,
-    MediaDetailPagerFragment.MediaDetailProvider,
-    AdapterView.OnItemClickListener, CategoryImagesCallback {
-
-    private MediaDetailPagerFragment mediaDetails;
-    //private BookmarkPicturesFragment bookmarkPicturesFragment;
-    private BookmarkLocationsFragment bookmarkLocationsFragment;
-    public Fragment listFragment;
-    private BookmarksPagerAdapter bookmarksPagerAdapter;
-
-    @BindView(R.id.explore_container)
-    FrameLayout container;
-
-    public BookmarkListRootFragment() {
-        //empty constructor necessary otherwise crashes on recreate
-    }
-
-    public BookmarkListRootFragment(Bundle bundle, BookmarksPagerAdapter bookmarksPagerAdapter) {
-        String title = bundle.getString("categoryName");
-        int order = bundle.getInt("order");
-        final int orderItem = bundle.getInt("orderItem");
-        if (order == 0) {
-            listFragment = new BookmarkPicturesFragment();
-        } else {
-            listFragment = new BookmarkLocationsFragment();
-            if(orderItem == 2) {
-                listFragment = new BookmarkItemsFragment();
-            }
-        }
-        Bundle featuredArguments = new Bundle();
-        featuredArguments.putString("categoryName", title);
-        listFragment.setArguments(featuredArguments);
-        this.bookmarksPagerAdapter = bookmarksPagerAdapter;
-    }
-
-    @Nullable
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater,
-        @Nullable final ViewGroup container,
-        @Nullable final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        View view = inflater.inflate(R.layout.fragment_featured_root, container, false);
-        ButterKnife.bind(this, view);
-        return view;
-    }
-
-    @Override
-    public void onViewCreated(@NonNull final View view, @Nullable final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-        if (savedInstanceState == null) {
-            setFragment(listFragment, mediaDetails);
-        }
-    }
-
-    public void setFragment(Fragment fragment, Fragment otherFragment) {
-        if (fragment.isAdded() && otherFragment != null) {
-            getChildFragmentManager()
-                .beginTransaction()
-                .hide(otherFragment)
-                .show(fragment)
-                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
-                .commit();
-            getChildFragmentManager().executePendingTransactions();
-        } else if (fragment.isAdded() && otherFragment == null) {
-            getChildFragmentManager()
-                .beginTransaction()
-                .show(fragment)
-                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
-                .commit();
-            getChildFragmentManager().executePendingTransactions();
-        } else if (!fragment.isAdded() && otherFragment != null) {
-            getChildFragmentManager()
-                .beginTransaction()
-                .hide(otherFragment)
-                .add(R.id.explore_container, fragment)
-                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
-                .commit();
-            getChildFragmentManager().executePendingTransactions();
-        } else if (!fragment.isAdded()) {
-            getChildFragmentManager()
-                .beginTransaction()
-                .replace(R.id.explore_container, fragment)
-                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
-                .commit();
-            getChildFragmentManager().executePendingTransactions();
-        }
-    }
-
-    public void removeFragment(Fragment fragment) {
-        getChildFragmentManager()
-            .beginTransaction()
-            .remove(fragment)
-            .commit();
-        getChildFragmentManager().executePendingTransactions();
-    }
-
-    @Override
-    public void onAttach(final Context context) {
-        super.onAttach(context);
-    }
-
-    @Override
-    public void onMediaClicked(int position) {
-        Log.d("deneme8", "on media clicked");
-    /*container.setVisibility(View.VISIBLE);
-    ((BookmarkFragment)getParentFragment()).tabLayout.setVisibility(View.GONE);
-    mediaDetails = new MediaDetailPagerFragment(false, true, position);
-    setFragment(mediaDetails, bookmarkPicturesFragment);*/
-    }
-
-    /**
-     * This method is called mediaDetailPagerFragment. It returns the Media Object at that Index
-     *
-     * @param i It is the index of which media object is to be returned which is same as current
-     *          index of viewPager.
-     * @return Media Object
-     */
-    @Override
-    public Media getMediaAtPosition(int i) {
-        if (bookmarksPagerAdapter.getMediaAdapter() == null) {
-            // not yet ready to return data
-            return null;
-        } else {
-            return (Media) bookmarksPagerAdapter.getMediaAdapter().getItem(i);
-        }
-    }
-
-    /**
-     * This method is called on from getCount of MediaDetailPagerFragment The viewpager will contain
-     * same number of media items as that of media elements in adapter.
-     *
-     * @return Total Media count in the adapter
-     */
-    @Override
-    public int getTotalMediaCount() {
-        if (bookmarksPagerAdapter.getMediaAdapter() == null) {
-            return 0;
-        }
-        return bookmarksPagerAdapter.getMediaAdapter().getCount();
-    }
-
-    @Override
-    public Integer getContributionStateAt(int position) {
-        return null;
-    }
-
-    /**
-     * Reload media detail fragment once media is nominated
-     *
-     * @param index item position that has been nominated
-     */
-    @Override
-    public void refreshNominatedMedia(int index) {
-        if (mediaDetails != null && !listFragment.isVisible()) {
-            removeFragment(mediaDetails);
-            mediaDetails = MediaDetailPagerFragment.newInstance(false, true);
-            ((BookmarkFragment) getParentFragment()).setScroll(false);
-            setFragment(mediaDetails, listFragment);
-            mediaDetails.showImage(index);
-        }
-    }
-
-    /**
-     * This method is called on success of API call for featured images or mobile uploads. The
-     * viewpager will notified that number of items have changed.
-     */
-    @Override
-    public void viewPagerNotifyDataSetChanged() {
-        if (mediaDetails != null) {
-            mediaDetails.notifyDataSetChanged();
-        }
-    }
-
-    public boolean backPressed() {
-        //check mediaDetailPage fragment is not null then we check mediaDetail.is Visible or not to avoid NullPointerException
-        if (mediaDetails != null) {
-            if (mediaDetails.isVisible()) {
-                // todo add get list fragment
-                ((BookmarkFragment) getParentFragment()).setupTabLayout();
-                ArrayList<Integer> removed = mediaDetails.getRemovedItems();
-                removeFragment(mediaDetails);
-                ((BookmarkFragment) getParentFragment()).setScroll(true);
-                setFragment(listFragment, mediaDetails);
-                ((MainActivity) getActivity()).showTabs();
-                if (listFragment instanceof BookmarkPicturesFragment) {
-                    GridViewAdapter adapter = ((GridViewAdapter) ((BookmarkPicturesFragment) listFragment)
-                        .getAdapter());
-                    Iterator i = removed.iterator();
-                    while (i.hasNext()) {
-                        adapter.remove(adapter.getItem((int) i.next()));
-                    }
-                    mediaDetails.clearRemoved();
-
-                }
-            } else {
-                moveToContributionsFragment();
-            }
-        } else {
-            moveToContributionsFragment();
-        }
-        // notify mediaDetails did not handled the backPressed further actions required.
-        return false;
-    }
-
-    void moveToContributionsFragment() {
-        ((MainActivity) getActivity()).setSelectedItemId(NavTab.CONTRIBUTIONS.code());
-        ((MainActivity) getActivity()).showTabs();
-    }
-
-    @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-        Log.d("deneme8", "on media clicked");
-        container.setVisibility(View.VISIBLE);
-        ((BookmarkFragment) getParentFragment()).tabLayout.setVisibility(View.GONE);
-        mediaDetails = MediaDetailPagerFragment.newInstance(false, true);
-        ((BookmarkFragment) getParentFragment()).setScroll(false);
-        setFragment(mediaDetails, listFragment);
-        mediaDetails.showImage(position);
-    }
-
-    @Override
-    public void onBackStackChanged() {
-
-    }
-}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkListRootFragment.kt

@@ -0,0 +1,226 @@
+package fr.free.nrw.commons.bookmarks
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.AdapterView.OnItemClickListener
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager
+import fr.free.nrw.commons.Media
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.bookmarks.category.BookmarkCategoriesFragment
+import fr.free.nrw.commons.bookmarks.items.BookmarkItemsFragment
+import fr.free.nrw.commons.bookmarks.locations.BookmarkLocationsFragment
+import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesFragment
+import fr.free.nrw.commons.category.CategoryImagesCallback
+import fr.free.nrw.commons.category.GridViewAdapter
+import fr.free.nrw.commons.contributions.MainActivity
+import fr.free.nrw.commons.databinding.FragmentFeaturedRootBinding
+import fr.free.nrw.commons.di.CommonsDaggerSupportFragment
+import fr.free.nrw.commons.media.MediaDetailPagerFragment
+import fr.free.nrw.commons.media.MediaDetailPagerFragment.Companion.newInstance
+import fr.free.nrw.commons.media.MediaDetailProvider
+import fr.free.nrw.commons.navtab.NavTab
+import timber.log.Timber
+
+class BookmarkListRootFragment : CommonsDaggerSupportFragment,
+    FragmentManager.OnBackStackChangedListener, MediaDetailProvider, OnItemClickListener,
+    CategoryImagesCallback {
+    private var mediaDetails: MediaDetailPagerFragment? = null
+    private val bookmarkLocationsFragment: BookmarkLocationsFragment? = null
+    var listFragment: Fragment? = null
+    private var bookmarksPagerAdapter: BookmarksPagerAdapter? = null
+
+    var binding: FragmentFeaturedRootBinding? = null
+
+    constructor()
+
+    constructor(bundle: Bundle, bookmarksPagerAdapter: BookmarksPagerAdapter) {
+        val title = bundle.getString("categoryName")
+        val order = bundle.getInt("order")
+        val orderItem = bundle.getInt("orderItem")
+
+        when (order) {
+            0 -> listFragment = BookmarkPicturesFragment()
+            1 -> listFragment = BookmarkLocationsFragment()
+            3 -> listFragment = BookmarkCategoriesFragment()
+        }
+        if (orderItem == 2) {
+            listFragment = BookmarkItemsFragment()
+        }
+
+        val featuredArguments = Bundle()
+        featuredArguments.putString("categoryName", title)
+        listFragment!!.setArguments(featuredArguments)
+        this.bookmarksPagerAdapter = bookmarksPagerAdapter
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        super.onCreate(savedInstanceState)
+        binding = FragmentFeaturedRootBinding.inflate(inflater, container, false)
+        return binding!!.getRoot()
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        if (savedInstanceState == null) {
+            setFragment(listFragment!!, mediaDetails)
+        }
+    }
+
+    fun setFragment(fragment: Fragment, otherFragment: Fragment?) {
+        if (fragment.isAdded() && otherFragment != null) {
+            getChildFragmentManager()
+                .beginTransaction()
+                .hide(otherFragment)
+                .show(fragment)
+                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
+                .commit()
+            getChildFragmentManager().executePendingTransactions()
+        } else if (fragment.isAdded() && otherFragment == null) {
+            getChildFragmentManager()
+                .beginTransaction()
+                .show(fragment)
+                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
+                .commit()
+            getChildFragmentManager().executePendingTransactions()
+        } else if (!fragment.isAdded() && otherFragment != null) {
+            getChildFragmentManager()
+                .beginTransaction()
+                .hide(otherFragment)
+                .add(R.id.explore_container, fragment)
+                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
+                .commit()
+            getChildFragmentManager().executePendingTransactions()
+        } else if (!fragment.isAdded()) {
+            getChildFragmentManager()
+                .beginTransaction()
+                .replace(R.id.explore_container, fragment)
+                .addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
+                .commit()
+            getChildFragmentManager().executePendingTransactions()
+        }
+    }
+
+    fun removeFragment(fragment: Fragment) {
+        getChildFragmentManager()
+            .beginTransaction()
+            .remove(fragment)
+            .commit()
+        getChildFragmentManager().executePendingTransactions()
+    }
+
+    override fun onMediaClicked(position: Int) {
+        Timber.d("on media clicked")
+        /*container.setVisibility(View.VISIBLE);
+    ((BookmarkFragment)getParentFragment()).tabLayout.setVisibility(View.GONE);
+    mediaDetails = new MediaDetailPagerFragment(false, true, position);
+    setFragment(mediaDetails, bookmarkPicturesFragment);*/
+    }
+
+    /**
+     * This method is called mediaDetailPagerFragment. It returns the Media Object at that Index
+     *
+     * @param i It is the index of which media object is to be returned which is same as current
+     * index of viewPager.
+     * @return Media Object
+     */
+    override fun getMediaAtPosition(i: Int): Media? =
+        bookmarksPagerAdapter!!.mediaAdapter?.getItem(i) as Media?
+
+    /**
+     * This method is called on from getCount of MediaDetailPagerFragment The viewpager will contain
+     * same number of media items as that of media elements in adapter.
+     *
+     * @return Total Media count in the adapter
+     */
+    override fun getTotalMediaCount(): Int =
+        bookmarksPagerAdapter!!.mediaAdapter?.count ?: 0
+
+    override fun getContributionStateAt(position: Int): Int? {
+        return null
+    }
+
+    /**
+     * Reload media detail fragment once media is nominated
+     *
+     * @param index item position that has been nominated
+     */
+    override fun refreshNominatedMedia(index: Int) {
+        if (mediaDetails != null && !listFragment!!.isVisible()) {
+            removeFragment(mediaDetails!!)
+            mediaDetails = newInstance(false, true)
+            (parentFragment as BookmarkFragment).setScroll(false)
+            setFragment(mediaDetails!!, listFragment)
+            mediaDetails!!.showImage(index)
+        }
+    }
+
+    /**
+     * This method is called on success of API call for featured images or mobile uploads. The
+     * viewpager will notified that number of items have changed.
+     */
+    override fun viewPagerNotifyDataSetChanged() {
+        if (mediaDetails != null) {
+            mediaDetails!!.notifyDataSetChanged()
+        }
+    }
+
+    fun backPressed(): Boolean {
+        //check mediaDetailPage fragment is not null then we check mediaDetail.is Visible or not to avoid NullPointerException
+        if (mediaDetails != null) {
+            if (mediaDetails!!.isVisible()) {
+                // todo add get list fragment
+                (parentFragment as BookmarkFragment).setupTabLayout()
+                val removed: ArrayList<Int> = mediaDetails!!.removedItems
+                removeFragment(mediaDetails!!)
+                (parentFragment as BookmarkFragment).setScroll(true)
+                setFragment(listFragment!!, mediaDetails)
+                (requireActivity() as MainActivity).showTabs()
+                if (listFragment is BookmarkPicturesFragment) {
+                    val adapter = ((listFragment as BookmarkPicturesFragment)
+                        .getAdapter() as GridViewAdapter?)
+                    val i: MutableIterator<*> = removed.iterator()
+                    while (i.hasNext()) {
+                        adapter!!.remove(adapter.getItem(i.next() as Int))
+                    }
+                    mediaDetails!!.clearRemoved()
+                }
+            } else {
+                moveToContributionsFragment()
+            }
+        } else {
+            moveToContributionsFragment()
+        }
+        // notify mediaDetails did not handled the backPressed further actions required.
+        return false
+    }
+
+    fun moveToContributionsFragment() {
+        (requireActivity() as MainActivity).setSelectedItemId(NavTab.CONTRIBUTIONS.code())
+        (requireActivity() as MainActivity).showTabs()
+    }
+
+    override fun onItemClick(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+        Timber.d("on media clicked")
+        binding!!.exploreContainer.visibility = View.VISIBLE
+        (parentFragment as BookmarkFragment).binding!!.tabLayout.setVisibility(View.GONE)
+        mediaDetails = newInstance(false, true)
+        (parentFragment as BookmarkFragment).setScroll(false)
+        setFragment(mediaDetails!!, listFragment)
+        mediaDetails!!.showImage(position)
+    }
+
+    override fun onBackStackChanged() = Unit
+
+    override fun onDestroy() {
+        super.onDestroy()
+        binding = null
+    }
+}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkPages.java

@@ -1,32 +0,0 @@
-package fr.free.nrw.commons.bookmarks;
-
-import androidx.fragment.app.Fragment;
-
-/**
- * Data class for handling a bookmark fragment and it title
- */
-public class BookmarkPages {
-    private Fragment page;
-    private String title;
-
-    BookmarkPages(Fragment fragment, String title) {
-        this.title = title;
-        this.page = fragment;
-    }
-
-    /**
-     * Return the fragment
-     * @return fragment object
-     */
-    public Fragment getPage() {
-        return page;
-    }
-
-    /**
-     * Return the fragment title
-     * @return title
-     */
-    public String getTitle() {
-        return title;
-    }
-}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarkPages.kt

@@ -0,0 +1,8 @@
+package fr.free.nrw.commons.bookmarks
+
+import androidx.fragment.app.Fragment
+
+data class BookmarkPages (
+    val page: Fragment? = null,
+    val title: String? = null
+)

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarksPagerAdapter.java

@@ -1,88 +0,0 @@
-package fr.free.nrw.commons.bookmarks;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.widget.ListAdapter;
-
-import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentPagerAdapter;
-
-import java.util.ArrayList;
-
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.bookmarks.locations.BookmarkLocationsFragment;
-import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesFragment;
-
-public class BookmarksPagerAdapter extends FragmentPagerAdapter {
-
-    private ArrayList<BookmarkPages> pages;
-
-    /**
-     * Default Constructor
-     * @param fm
-     * @param context
-     * @param onlyPictures is true if the fragment requires only BookmarkPictureFragment
-     *                     (i.e. when no user is logged in).
-     */
-    BookmarksPagerAdapter(FragmentManager fm, Context context,boolean onlyPictures) {
-        super(fm);
-        pages = new ArrayList<>();
-        Bundle picturesBundle = new Bundle();
-        picturesBundle.putString("categoryName", context.getString(R.string.title_page_bookmarks_pictures));
-        picturesBundle.putInt("order", 0);
-        pages.add(new BookmarkPages(
-                new BookmarkListRootFragment(picturesBundle, this),
-                context.getString(R.string.title_page_bookmarks_pictures)));
-        if (!onlyPictures) {
-            // if onlyPictures is false we also add the location fragment.
-            Bundle locationBundle = new Bundle();
-            locationBundle.putString("categoryName",
-                context.getString(R.string.title_page_bookmarks_locations));
-            locationBundle.putInt("order", 1);
-            pages.add(new BookmarkPages(
-                new BookmarkListRootFragment(locationBundle, this),
-                context.getString(R.string.title_page_bookmarks_locations)));
-
-            locationBundle.putInt("orderItem", 2);
-            pages.add(new BookmarkPages(
-                new BookmarkListRootFragment(locationBundle, this),
-                context.getString(R.string.title_page_bookmarks_items)));
-        }
-        notifyDataSetChanged();
-    }
-
-    @Override
-    public Fragment getItem(int position) {
-        return pages.get(position).getPage();
-    }
-
-    @Override
-    public int getCount() {
-        return pages.size();
-    }
-
-    @Nullable
-    @Override
-    public CharSequence getPageTitle(int position) {
-        return pages.get(position).getTitle();
-    }
-
-    /**
-     * Return the Adapter used to display the picture gridview
-     * @return adapter
-     */
-    public ListAdapter getMediaAdapter() {
-        BookmarkPicturesFragment fragment = (BookmarkPicturesFragment)(((BookmarkListRootFragment)pages.get(0).getPage()).listFragment);
-        return fragment.getAdapter();
-    }
-
-    /**
-     * Update the pictures list for the bookmark fragment
-     */
-    public void requestPictureListUpdate() {
-        BookmarkPicturesFragment fragment = (BookmarkPicturesFragment)(((BookmarkListRootFragment)pages.get(0).getPage()).listFragment);
-        fragment.onResume();
-    }
-}

app/src/main/java/fr/free/nrw/commons/bookmarks/BookmarksPagerAdapter.kt

@@ -0,0 +1,82 @@
+package fr.free.nrw.commons.bookmarks
+
+import android.content.Context
+import android.widget.ListAdapter
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.FragmentPagerAdapter
+import fr.free.nrw.commons.R
+import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesFragment
+
+class BookmarksPagerAdapter internal constructor(
+    fm: FragmentManager, context: Context, onlyPictures: Boolean
+) : FragmentPagerAdapter(fm) {
+    private val pages = mutableListOf<BookmarkPages>()
+
+    /**
+     * Default Constructor
+     * @param fm
+     * @param context
+     * @param onlyPictures is true if the fragment requires only BookmarkPictureFragment
+     * (i.e. when no user is logged in).
+     */
+    init {
+        pages.add(
+            BookmarkPages(
+                BookmarkListRootFragment(
+                    bundleOf(
+                        "categoryName" to context.getString(R.string.title_page_bookmarks_pictures),
+                        "order" to 0
+                    ), this
+                ), context.getString(R.string.title_page_bookmarks_pictures)
+            )
+        )
+        if (!onlyPictures) {
+            // if onlyPictures is false we also add the location fragment.
+            val locationBundle = bundleOf(
+                "categoryName" to context.getString(R.string.title_page_bookmarks_locations),
+                "order" to 1
+            )
+
+            pages.add(
+                BookmarkPages(
+                    BookmarkListRootFragment(locationBundle, this),
+                    context.getString(R.string.title_page_bookmarks_locations)
+                )
+            )
+
+            locationBundle.putInt("orderItem", 2)
+            pages.add(
+                BookmarkPages(
+                    BookmarkListRootFragment(locationBundle, this),
+                    context.getString(R.string.title_page_bookmarks_items)
+                )
+            )
+        }
+        pages.add(
+            BookmarkPages(
+                BookmarkListRootFragment(
+                    bundleOf(
+                        "categoryName" to context.getString(R.string.title_page_bookmarks_categories),
+                        "order" to 3
+                    ), this),
+                context.getString(R.string.title_page_bookmarks_categories)
+            )
+        )
+        notifyDataSetChanged()
+    }
+
+    override fun getItem(position: Int): Fragment = pages[position].page!!
+
+    override fun getCount(): Int = pages.size
+
+    override fun getPageTitle(position: Int): CharSequence? = pages[position].title
+
+    /**
+     * Return the Adapter used to display the picture gridview
+     * @return adapter
+     */
+    val mediaAdapter: ListAdapter?
+        get() = (((pages[0].page as BookmarkListRootFragment).listFragment) as BookmarkPicturesFragment).getAdapter()
+}