Created models, adapters and view models (#4441)

* created models, adapters and view models

* Added Image Fragment

* back button linked

* Documentation and refractor

* spaces

* Butterknife annotation

* DiffUtil

* Added Examples

* Extended Custom selector From Base Activity

* made view model injectable

app/src/main/res/layout/activity_custom_selector.xml

@@ -15,10 +15,11 @@
             app:layout_constraintTop_toTopOf="parent"/>
     </androidx.constraintlayout.widget.ConstraintLayout>
 
-    <include
-      layout="@layout/fragment_custom_selector"
-      app:layout_constraintTop_toBottomOf="@+id/toolbar_layout"
+    <androidx.fragment.app.FragmentContainerView
+      android:id="@+id/fragment_container"
+      android:layout_width="match_parent"
+      android:layout_height="0dp"
       app:layout_constraintBottom_toBottomOf="parent"
-      />
+      app:layout_constraintTop_toBottomOf="@+id/toolbar_layout"/>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/custom_selector_toolbar.xml

@@ -3,7 +3,7 @@
   xmlns:app="http://schemas.android.com/apk/res-auto"
   >
 
-  <ImageView
+  <ImageButton
     android:id="@+id/back"
     android:layout_width="wrap_content"
     android:layout_height="match_parent"
@@ -13,6 +13,8 @@
     android:layout_centerVertical="true"
     android:background="?attr/selectableItemBackgroundBorderless"
     android:padding="@dimen/standard_gap"
+    android:clickable="true"
+    android:focusable="true"
     app:srcCompat="?attr/custom_selector_back" />
 
 
@@ -29,7 +31,7 @@
     android:text="@string/custom_selector_title"
     style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title" />
 
-  <ImageView
+  <ImageButton
     android:id="@+id/done"
     app:layout_constraintEnd_toEndOf="parent"
     app:layout_constraintTop_toTopOf="parent"
@@ -37,6 +39,7 @@
     android:layout_height="match_parent"
     android:layout_centerVertical="true"
     android:clickable="true"
+    android:background="?attr/selectableItemBackgroundBorderless"
     android:focusable="true"
     android:padding="@dimen/standard_gap"
     app:srcCompat="?attr/custom_selector_done"/>

app/src/main/res/layout/fragment_contributions_list.xml

@@ -69,6 +69,19 @@
             app:fabSize="mini"
             app:srcCompat="@drawable/ic_photo_white_24dp" />
 
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+          android:id="@+id/fab_custom_gallery"
+          android:layout_width="wrap_content"
+          android:layout_height="wrap_content"
+          android:tint="@color/button_blue"
+          android:visibility="gone"
+          app:backgroundTint="@color/main_background_light"
+          app:useCompatPadding="true"
+          app:elevation="@dimen/tiny_margin"
+          app:fabSize="mini"
+          app:srcCompat="@drawable/commons_logo"
+          android:background="@drawable/commons"/>
+
         <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/fab_plus"
             android:layout_width="wrap_content"

app/src/main/res/layout/fragment_custom_selector.xml

@@ -7,6 +7,7 @@
 
   <androidx.recyclerview.widget.RecyclerView
     android:id="@+id/selector_rv"
+    android:background="?attr/mainBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     />

app/src/main/res/layout/item_custom_selector_folder.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout
-  xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   android:layout_width="match_parent"
+  android:padding="@dimen/dimen_2"
   android:layout_height="wrap_content">
 
   <androidx.cardview.widget.CardView
@@ -11,7 +11,6 @@
     app:cardCornerRadius="@dimen/dimen_6"
     app:cardElevation="@dimen/dimen_2"
     android:id="@+id/view"
-    app:cardUseCompatPadding="true"
     app:layout_constraintDimensionRatio="H,1:1"
     app:layout_constraintTop_toTopOf="parent">
 
@@ -24,49 +23,47 @@
         android:id="@+id/folder_thumbnail"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:scaleType="centerCrop"/>
+        android:background="@color/black"
+        android:alpha="0.15"
+        android:scaleType="centerCrop" />
 
       <View
+        android:id="@+id/album_overlay"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:id="@+id/album_overlay"
-        android:alpha="0.05"
-        />
+        android:alpha="0.05" />
 
       <LinearLayout
         android:id="@+id/folder_details"
-        app:layout_constraintBottom_toBottomOf="parent"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
-        >
+        app:layout_constraintBottom_toBottomOf="parent">
 
         <TextView
-          android:id="@+id/album_name"
+          android:id="@+id/folder_name"
+          style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
-          app:layout_constraintLeft_toLeftOf="parent"
-          app:layout_constraintBottom_toBottomOf="parent"
           android:layout_margin="@dimen/dimen_6"
-          android:padding="@dimen/dimen_6"
-          style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
           android:layout_weight="1"
-          android:textSize="16sp"
+          android:ellipsize="end"
+          android:padding="@dimen/dimen_6"
           android:singleLine="true"
-          android:ellipsize="end"/>
+          android:textSize="16sp"
+          app:layout_constraintBottom_toBottomOf="parent"
+          app:layout_constraintLeft_toLeftOf="parent" />
 
         <TextView
-          android:id="@+id/album_count"
+          android:id="@+id/folder_count"
+          style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
-          app:layout_constraintRight_toRightOf="parent"
-          app:layout_constraintBottom_toBottomOf="parent"
           android:layout_margin="5dp"
-          android:padding="5dp"
-          android:textColor="@color/white"
-          android:textStyle="bold"
           android:textSize="16sp"
-          />
+          android:textStyle="bold"
+          app:layout_constraintBottom_toBottomOf="parent"
+          app:layout_constraintRight_toRightOf="parent" />
 
       </LinearLayout>
 
@@ -75,7 +72,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:visibility="visible"
-        app:constraint_referenced_ids="folder_details,album_overlay"/>
+        app:constraint_referenced_ids="folder_details,album_overlay" />
 
 
     </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/item_custom_selector_image.xml

@@ -3,16 +3,16 @@
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   android:layout_width="match_parent"
+  android:padding="@dimen/dimen_2"
   android:layout_height="wrap_content">
 
   <androidx.cardview.widget.CardView
     android:layout_width="match_parent"
+    app:layout_constraintDimensionRatio="H,1:1"
     android:layout_height="0dp"
     app:cardCornerRadius="@dimen/dimen_6"
     app:cardElevation="@dimen/dimen_2"
     android:id="@+id/view"
-    app:cardUseCompatPadding="true"
-    app:layout_constraintDimensionRatio="H,1:1"
     app:layout_constraintTop_toTopOf="parent">
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -29,7 +29,7 @@
         android:id="@+id/selected_overlay"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:alpha="0.4"
+        android:alpha="0.25"
         android:background="@color/divider_grey"
         />
 
@@ -38,18 +38,19 @@
         android:layout_width="@dimen/dimen_20"
         android:layout_height="@dimen/dimen_20"
         app:layout_constraintDimensionRatio="H,1:1"
-        android:layout_margin="@dimen/dimen_10"
-        android:gravity="center|center_vertical"
-        android:includeFontPadding="false"
+        android:textSize="11sp"
         android:textStyle="bold"
-        android:textColor="@color/black"
+        android:layout_margin="@dimen/dimen_6"
+        android:gravity="center|center_vertical"
+        style="@style/TextAppearance.AppCompat.Small"
+        android:text="12"
         android:background="@drawable/circle_shape"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"/>
 
 
       <androidx.constraintlayout.widget.Group
-        android:id="@+id/selected_view"
+        android:id="@+id/selected_group"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:visibility="visible"
@@ -66,15 +67,15 @@
 
       <ImageView
         android:id="@+id/uploaded_overlay_icon"
-        android:layout_width="@dimen/dimen_140"
-        android:layout_height="@dimen/dimen_140"
+        android:layout_width="@dimen/dimen_72"
+        android:layout_height="@dimen/dimen_72"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"
         app:srcCompat="@drawable/commons"
         />
 
       <androidx.constraintlayout.widget.Group
-        android:id="@+id/uploaded"
+        android:id="@+id/uploaded_group"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:visibility="visible"