Merge remote-tracking branch 'upstream/master'

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

@@ -0,0 +1,23 @@
+package fr.free.nrw.commons;
+
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.hamcrest.CoreMatchers.is;
+
+// TODO: use Robolectric and make it runnable without a connected device
+@RunWith(AndroidJUnit4.class)
+public class MediaTest {
+    @Test public void displayTitleShouldStripExtension() {
+        Media m = new Media("File:Example.jpg");
+        Assert.assertThat(m.getDisplayTitle(), is("Example"));
+    }
+
+    @Test public void displayTitleShouldUseSpaceForUnderscore() {
+        Media m = new Media("File:Example 1_2.jpg");
+        Assert.assertThat(m.getDisplayTitle(), is("Example 1 2"));
+    }
+}

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

@@ -0,0 +1,61 @@
+package fr.free.nrw.commons;
+
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.net.URLEncoder;
+
+import static org.hamcrest.CoreMatchers.is;
+
+// TODO: use Robolectric and make it runnable without a connected device
+@RunWith(AndroidJUnit4.class)
+public class PageTitleTest {
+    @Test public void displayTextShouldNotBeUnderscored() {
+        Assert.assertThat(new PageTitle("Ex_1 ").getDisplayText(),
+                is("Ex 1"));
+    }
+
+    @Test public void moreThanTwoColons() {
+        Assert.assertThat(new PageTitle("File:sample:a.jpg").getPrefixedText(),
+                is("File:Sample:a.jpg"));
+    }
+
+    @Test public void getTextShouldReturnWithoutNamespace() {
+        Assert.assertThat(new PageTitle("File:sample.jpg").getText(),
+                is("Sample.jpg"));
+    }
+
+
+    @Test public void capitalizeNameAfterNamespace() {
+        Assert.assertThat(new PageTitle("File:sample.jpg").getPrefixedText(),
+                is("File:Sample.jpg"));
+    }
+
+    @Test public void prefixedTextShouldBeUnderscored() {
+        Assert.assertThat(new PageTitle("Ex 1 ").getPrefixedText(),
+                is("Ex_1"));
+    }
+
+    @Test public void getMobileUriForTest() {
+        Assert.assertThat(new PageTitle("Test").getMobileUri().toString(),
+                is("https://commons.m.wikimedia.org/wiki/Test"));
+    }
+
+    @Test public void spaceBecomesUnderscoreInUri() {
+        Assert.assertThat(new PageTitle("File:Ex 1.jpg").getCanonicalUri().toString(),
+                is("https://commons.wikimedia.org/wiki/File:Ex_1.jpg"));
+    }
+
+    @Test public void leaveSubpageNamesUncapitalizedInUri() {
+        Assert.assertThat(new PageTitle("User:Ex/subpage").getCanonicalUri().toString(),
+                is("https://commons.wikimedia.org/wiki/User:Ex/subpage"));
+    }
+
+    @Test public void unicodeUri() throws Throwable {
+        Assert.assertThat(new PageTitle("User:例").getCanonicalUri().toString(),
+                is("https://commons.wikimedia.org/wiki/User:" + URLEncoder.encode("例", "utf-8")));
+    }
+}

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

@@ -2,6 +2,7 @@ package fr.free.nrw.commons;
 
 import android.app.Activity;
 import android.content.res.Resources;
+import android.support.annotation.Nullable;
 
 import org.xmlpull.v1.XmlPullParser;
 
@@ -42,10 +43,11 @@ public class LicenseList {
         return licenses.get(key);
     }
 
+    @Nullable
     public License licenseForTemplate(String template) {
-        String ucTemplate = Utils.capitalize(template);
+        String ucTemplate = new PageTitle(template).getDisplayText();
         for (License license : values()) {
-            if (ucTemplate.equals(Utils.capitalize(license.getTemplate()))) {
+            if (ucTemplate.equals(new PageTitle(license.getTemplate()).getDisplayText())) {
                 return license;
             }
         }

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

@@ -47,7 +47,7 @@ public class Media implements Parcelable {
             return "";
         }
         // FIXME: Gross hack bercause my regex skills suck maybe or I am too lazy who knows
-        String title = filename.replaceFirst("^File:", "");
+        String title = getFilePageTitle().getDisplayText().replaceFirst("^File:", "");
         Matcher matcher = displayTitlePattern.matcher(title);
         if(matcher.matches()) {
             return matcher.group(1);
@@ -56,13 +56,8 @@ public class Media implements Parcelable {
         }
     }
 
-    public String getDescriptionUrl() {
+    public PageTitle getFilePageTitle() {
-        // HACK! Geez
+        return new PageTitle("File:" + getFilename().replaceFirst("^File:", ""));
-        return CommonsApplication.HOME_URL + "File:" + Utils.urlEncode(getFilename().replace("File:", "").replace(" ", "_"));
-    }
-
-    public String getMobileDescriptionUrl() {
-        return CommonsApplication.MOBILE_HOME_URL + "File:" + Utils.urlEncode(getFilename().replace("File:", "").replace(" ", "_"));
     }
 
     public Uri getLocalUri() {

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

@@ -150,14 +150,14 @@ public class MediaDataExtractor {
         }
     }
 
-    private Node findTemplate(Element parentNode, String title) throws IOException {
+    private Node findTemplate(Element parentNode, String title_) throws IOException {
-        String ucTitle= Utils.capitalize(title);
+        String title= new PageTitle(title_).getDisplayText();
         NodeList nodes = parentNode.getChildNodes();
         for (int i = 0, length = nodes.getLength(); i < length; i++) {
             Node node = nodes.item(i);
             if (node.getNodeName().equals("template")) {
                 String foundTitle = getTemplateTitle(node);
-                if (Utils.capitalize(foundTitle).equals(ucTitle)) {
+                if (title.equals(new PageTitle(foundTitle).getDisplayText())) {
                     return node;
                 }
             }

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

@@ -6,10 +6,13 @@ import android.support.annotation.Nullable;
 import android.support.graphics.drawable.VectorDrawableCompat;
 import android.text.TextUtils;
 import android.util.AttributeSet;
+import android.widget.Toast;
 
 import com.facebook.drawee.generic.GenericDraweeHierarchyBuilder;
 import com.facebook.drawee.view.SimpleDraweeView;
 
+import timber.log.Timber;
+
 public class MediaWikiImageView extends SimpleDraweeView {
     private ThumbnailFetchTask currentThumbnailTask;
 
@@ -81,7 +84,13 @@ public class MediaWikiImageView extends SimpleDraweeView {
                 result = media.getLocalUri().toString();
             } else {
                 // only cache meaningful thumbnails received from network.
+                try {
                     CommonsApplication.getInstance().getThumbnailUrlCache().put(media.getFilename(), result);
+                } catch (NullPointerException npe) {
+                    Timber.e("error when adding pic to cache " + npe);
+
+                    Toast.makeText(getContext(), R.string.error_while_cache, Toast.LENGTH_SHORT).show();
+                }
             }
             setImageUrl(result);
         }

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

@@ -0,0 +1,91 @@
+package fr.free.nrw.commons;
+
+import android.net.Uri;
+import android.support.annotation.NonNull;
+
+public class PageTitle {
+    private final String namespace;
+    private final String titleKey;
+
+    /**
+     * Construct from a namespace-prefixed page name.
+     * @param prefixedText namespace-prefixed page name
+     */
+    public PageTitle(@NonNull String prefixedText) {
+        String[] segments = prefixedText.trim().replace(" ", "_").split(":", 2);
+
+        // canonicalize and capitalize page title as done by MediaWiki
+        if (segments.length == 2) {
+            // TODO: canonicalize and capitalize namespace as well
+            // see https://www.mediawiki.org/wiki/Manual:Title.php#Canonical_forms
+            namespace = segments[0];
+            titleKey = Utils.capitalize(segments[1]);
+        } else {
+            namespace = "";
+            titleKey = Utils.capitalize(segments[0]);
+        }
+    }
+
+    /**
+     * Get the canonicalized title for displaying (such as "File:My example.jpg").
+     *
+     * @return canonical title
+     */
+    @NonNull
+    public String getPrefixedText() {
+        if (namespace.isEmpty()) {
+            return titleKey;
+        } else {
+            return namespace + ":" + titleKey;
+        }
+    }
+
+    /**
+     * Get the canonical title for DB and URLs (such as "File:My_example.jpg").
+     *
+     * @return canonical title
+     */
+    @NonNull
+    public String getDisplayText() {
+        return getPrefixedText().replace("_", " ");
+    }
+
+    /**
+     * Convert to a URI
+     * (such as "https://commons.wikimedia.org/wiki/File:My_example.jpg").
+     *
+     * @return URI
+     */
+    @NonNull
+    public Uri getCanonicalUri() {
+        String uriStr = CommonsApplication.HOME_URL + Uri.encode(getPrefixedText(), ":/");
+        return Uri.parse(uriStr);
+    }
+
+
+    /**
+     * Convert to a mobile URI
+     * (such as "https://commons.m.wikimedia.org/wiki/File:My_example.jpg").
+     *
+     * @return URI
+     */
+    @NonNull
+    public Uri getMobileUri() {
+        String uriStr = CommonsApplication.MOBILE_HOME_URL + Uri.encode(getPrefixedText(), ":/");
+        return Uri.parse(uriStr);
+    }
+
+    /**
+     * Get the canonical title without namespace.
+     * @return title
+     */
+    @NonNull
+    public String getText() {
+        return titleKey;
+    }
+
+    @Override
+    public String toString() {
+        return getPrefixedText();
+    }
+}

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

@@ -1,7 +1,6 @@
 package fr.free.nrw.commons;
 
 import android.content.Context;
-import android.net.Uri;
 import android.os.Build;
 import android.preference.PreferenceManager;
 import android.text.Html;
@@ -9,7 +8,6 @@ import android.text.Spanned;
 
 import org.apache.commons.codec.binary.Hex;
 import org.apache.commons.codec.digest.DigestUtils;
-import org.apache.commons.codec.net.URLCodec;
 import org.w3c.dom.Node;
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -20,6 +18,7 @@ import java.io.InputStream;
 import java.io.StringWriter;
 import java.io.UnsupportedEncodingException;
 import java.math.BigInteger;
+import java.net.URLEncoder;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.text.ParseException;
@@ -126,7 +125,7 @@ public class Utils {
     }
 
     public static String makeThumbBaseUrl(String filename) {
-        String name = filename.replaceFirst("File:", "").replace(" ", "_");
+        String name = new PageTitle(filename).getPrefixedText();
         String sha = new String(Hex.encodeHex(DigestUtils.md5(name)));
         return String.format("%s/%s/%s/%s", CommonsApplication.IMAGE_URL_BASE, sha.substring(0, 1), sha.substring(0, 2), urlEncode(name));
     }
@@ -153,11 +152,9 @@ public class Utils {
         return outputStream.toString();
     }
 
-    private static final URLCodec urlCodec = new URLCodec();
-
     public static String urlEncode(String url) {
         try {
-            return urlCodec.encode(url, "utf-8");
+            return URLEncoder.encode(url, "utf-8");
         } catch (UnsupportedEncodingException e) {
             throw new RuntimeException(e);
         }
@@ -232,12 +229,6 @@ public class Utils {
         throw new RuntimeException("Unrecognized license value: " + license);
     }
 
-    public static Uri uriForWikiPage(String name) {
-        String underscored = name.trim().replace(" ", "_");
-        String uriStr = CommonsApplication.HOME_URL + urlEncode(underscored);
-        return Uri.parse(uriStr);
-    }
-
     /**
      * Fast-forward an XmlPullParser to the next instance of the given element
      * in the input stream (namespaced).

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

@@ -20,8 +20,9 @@ import android.widget.Toast;
 import fr.free.nrw.commons.BuildConfig;
 import fr.free.nrw.commons.CommonsApplication;
 import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
 import fr.free.nrw.commons.WelcomeActivity;
+
+import fr.free.nrw.commons.PageTitle;
 import fr.free.nrw.commons.contributions.ContributionsActivity;
 import timber.log.Timber;
 
@@ -162,7 +163,7 @@ public class LoginActivity extends AccountAuthenticatorActivity {
      * @return String canonicial username
      */
     private String canonicializeUsername( String username ) {
-        return Utils.capitalize(username.substring(0,1)) + username.substring(1);
+        return new PageTitle(username).getText();
     }
 
     @Override

app/src/main/java/fr/free/nrw/commons/contributions/ContributionsListFragment.java

@@ -2,6 +2,7 @@ package fr.free.nrw.commons.contributions;
 
 import android.Manifest;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
@@ -9,6 +10,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AlertDialog;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -105,19 +107,57 @@ public class ContributionsListFragment extends Fragment {
             case R.id.menu_from_gallery:
                 //Gallery crashes before reach ShareActivity screen so must implement permissions check here
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                    if (ContextCompat.checkSelfPermission(this.getActivity(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+
-                        //See http://stackoverflow.com/questions/33169455/onrequestpermissionsresult-not-being-called-in-dialog-fragment
+                    // Here, thisActivity is the current activity
-                        requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
+                    if (ContextCompat.checkSelfPermission(getActivity(),
-                        return true;
+                            Manifest.permission.READ_EXTERNAL_STORAGE)
+                            != PackageManager.PERMISSION_GRANTED) {
+
+                        // Should we show an explanation?
+                        if (shouldShowRequestPermissionRationale(Manifest.permission.READ_EXTERNAL_STORAGE)) {
+
+                            // Show an explanation to the user *asynchronously* -- don't block
+                            // this thread waiting for the user's response! After the user
+                            // sees the explanation, try again to request the permission.
+
+                            new AlertDialog.Builder(getActivity())
+                                    .setMessage(getString(R.string.storage_permission_rationale))
+                                    .setPositiveButton("OK", new DialogInterface.OnClickListener() {
+                                        @Override
+                                        public void onClick(DialogInterface dialog, int which) {
+
+                                            requestPermissions(
+                                                    new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
+                                                    1);
+                                            dialog.dismiss();
+                                        }
+                                    })
+                                    .setNegativeButton("Cancel", null)
+                                    .create()
+                                    .show();
+
+                        } else {
+
+                            // No explanation needed, we can request the permission.
+
+                            requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
+                                    1);
+
+                            // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
+                            // app-defined int constant. The callback method gets the
+                            // result of the request.
+                        }
                     } else {
                         controller.startGalleryPick();
                         return true;
                     }
-                }
+
-                else {
+                } else {
                     controller.startGalleryPick();
                     return true;
                 }
+
+                return true;
             case R.id.menu_from_camera:
                 controller.startCameraCapture();
                 return true;
@@ -128,6 +168,9 @@ public class ContributionsListFragment extends Fragment {
 
     @Override
     public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+
+        Timber.d("onRequestPermissionsResult: req code = " + " perm = " + permissions + " grant =" + grantResults);
+
         switch (requestCode) {
             // 1 = Storage allowed when gallery selected
             case 1: {

app/src/main/java/fr/free/nrw/commons/contributions/UploadCountClient.java

@@ -9,6 +9,7 @@ import java.net.HttpURLConnection;
 import java.net.URL;
 import java.util.Locale;
 
+import fr.free.nrw.commons.PageTitle;
 import fr.free.nrw.commons.concurrency.BackgroundPoolExceptionHandler;
 import fr.free.nrw.commons.concurrency.ThreadPoolExecutorService;
 import timber.log.Timber;
@@ -33,7 +34,8 @@ public class UploadCountClient {
             public void run() {
                 URL url;
                 try {
-                    url = new URL(String.format(Locale.ENGLISH, UPLOAD_COUNT_URL_TEMPLATE, userName));
+                    url = new URL(String.format(Locale.ENGLISH, UPLOAD_COUNT_URL_TEMPLATE,
+                            new PageTitle(userName).getText()));
                     HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
                     try {
                         BufferedReader bufferedReader = new BufferedReader(new

app/src/main/java/fr/free/nrw/commons/media/MediaDetailFragment.java

@@ -24,8 +24,8 @@ import fr.free.nrw.commons.LicenseList;
 import fr.free.nrw.commons.Media;
 import fr.free.nrw.commons.MediaDataExtractor;
 import fr.free.nrw.commons.MediaWikiImageView;
+import fr.free.nrw.commons.PageTitle;
 import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
 import timber.log.Timber;
 
 public class MediaDetailFragment extends Fragment {
@@ -86,7 +86,7 @@ public class MediaDetailFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         detailProvider = (MediaDetailPagerFragment.MediaDetailProvider)getActivity();
 
-        if(savedInstanceState != null) {
+        if (savedInstanceState != null) {
             editable = savedInstanceState.getBoolean("editable");
             index = savedInstanceState.getInt("index");
             initialListTop = savedInstanceState.getInt("listTop");
@@ -269,12 +269,11 @@ public class MediaDetailFragment extends Fragment {
         }
     }
 
-    private View buildCatLabel(String cat) {
+    private View buildCatLabel(final String catName) {
-        final String catName = cat;
         final View item = getLayoutInflater(null).inflate(R.layout.detail_category_item, null, false);
         final TextView textView = (TextView)item.findViewById(R.id.mediaDetailCategoryItemText);
 
-        textView.setText(cat);
+        textView.setText(catName);
         if (categoriesLoaded && categoriesPresent) {
             textView.setOnClickListener(new View.OnClickListener() {
                 @Override
@@ -282,7 +281,7 @@ public class MediaDetailFragment extends Fragment {
                     String selectedCategoryTitle = "Category:" + catName;
                     Intent viewIntent = new Intent();
                     viewIntent.setAction(Intent.ACTION_VIEW);
-                    viewIntent.setData(Utils.uriForWikiPage(selectedCategoryTitle));
+                    viewIntent.setData(new PageTitle(selectedCategoryTitle).getCanonicalUri());
                     startActivity(viewIntent);
                 }
             });

app/src/main/java/fr/free/nrw/commons/media/MediaDetailPagerFragment.java

@@ -91,7 +91,7 @@ public class MediaDetailPagerFragment extends Fragment implements ViewPager.OnPa
 
         final MediaDetailAdapter adapter = new MediaDetailAdapter(getChildFragmentManager());
 
-        if(savedInstanceState != null) {
+        if (savedInstanceState != null) {
             final int pageNumber = savedInstanceState.getInt("current-page");
             // Adapter doesn't seem to be loading immediately.
             // Dear God, please forgive us for our sins
@@ -143,7 +143,7 @@ public class MediaDetailPagerFragment extends Fragment implements ViewPager.OnPa
                 // View in browser
                 Intent viewIntent = new Intent();
                 viewIntent.setAction(Intent.ACTION_VIEW);
-                viewIntent.setData(Uri.parse(m.getMobileDescriptionUrl()));
+                viewIntent.setData(m.getFilePageTitle().getMobileUri());
                 startActivity(viewIntent);
                 return true;
             case R.id.menu_download_current_image:
@@ -224,14 +224,15 @@ public class MediaDetailPagerFragment extends Fragment implements ViewPager.OnPa
                     ShareActionProvider mShareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(menu.findItem(R.id.menu_share_current_image));
                     // On some phones null is returned for some reason:
                     // https://github.com/commons-app/apps-android-commons/issues/413
-                    if(mShareActionProvider != null) {
+                    if (mShareActionProvider != null) {
                         Intent shareIntent = new Intent(Intent.ACTION_SEND);
                         shareIntent.setType("text/plain");
-                        shareIntent.putExtra(Intent.EXTRA_TEXT, m.getDisplayTitle() + " \n" + m.getDescriptionUrl());
+                        shareIntent.putExtra(Intent.EXTRA_TEXT,
+                                m.getDisplayTitle() + " \n" + m.getFilePageTitle().getCanonicalUri());
                         mShareActionProvider.setShareIntent(shareIntent);
                     }
 
-                    if(m instanceof Contribution) {
+                    if (m instanceof Contribution) {
                         Contribution c = (Contribution)m;
                         switch(c.getState()) {
                             case Contribution.STATE_FAILED:

app/src/main/java/fr/free/nrw/commons/nearby/NearbyActivity.java

@@ -101,8 +101,47 @@ public class NearbyActivity extends NavigationBaseActivity {
                     Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                 startLookingForNearby();
             } else {
+                if (ContextCompat.checkSelfPermission(this,
+                        Manifest.permission.ACCESS_FINE_LOCATION)
+                        != PackageManager.PERMISSION_GRANTED) {
+
+                    // Should we show an explanation?
+                    if (ActivityCompat.shouldShowRequestPermissionRationale(this,
+                            Manifest.permission.ACCESS_FINE_LOCATION)) {
+
+                        // Show an explanation to the user *asynchronously* -- don't block
+                        // this thread waiting for the user's response! After the user
+                        // sees the explanation, try again to request the permission.
+
+                        new AlertDialog.Builder(this)
+                                .setMessage(getString(R.string.location_permission_rationale))
+                                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
+                                    @Override
+                                    public void onClick(DialogInterface dialog, int which) {
+
+                                        ActivityCompat.requestPermissions(NearbyActivity.this,
+                                                new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
+                                                LOCATION_REQUEST);
+                                        dialog.dismiss();
+                                    }
+                                })
+                                .setNegativeButton("Cancel", null)
+                                .create()
+                                .show();
+
+                    } else {
+
+                        // No explanation needed, we can request the permission.
+
                         ActivityCompat.requestPermissions(this,
-                        new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, LOCATION_REQUEST);
+                                new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
+                                LOCATION_REQUEST);
+
+                        // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
+                        // app-defined int constant. The callback method gets the
+                        // result of the request.
+                    }
+                }
             }
         } else {
             startLookingForNearby();
@@ -279,7 +318,7 @@ public class NearbyActivity extends NavigationBaseActivity {
         Fragment fragment = new NearbyMapFragment();
         fragment.setArguments(bundle);
         fragmentTransaction.replace(R.id.container, fragment);
-        fragmentTransaction.commit();
+        fragmentTransaction.commitAllowingStateLoss();
     }
 
     /**
@@ -290,7 +329,7 @@ public class NearbyActivity extends NavigationBaseActivity {
         Fragment fragment = new NearbyListFragment();
         fragment.setArguments(bundle);
         fragmentTransaction.replace(R.id.container, fragment);
-        fragmentTransaction.commit();
+        fragmentTransaction.commitAllowingStateLoss();
     }
 
     public static void startYourself(Context context) {

app/src/main/res/values/strings.xml

@@ -198,5 +198,6 @@ Tap this message (or hit back) to skip this step.</string>
   <string name="no_description_found">no description found</string>
   <string name="nearby_info_menu_commons_article">Commons Article</string>
   <string name="nearby_info_menu_wikidata_article">Wikidata item</string>
+    <string name="error_while_cache">Error while caching pictures</string>
 
 </resources>

app/src/test/java/fr/free/nrw/commons/UtilsTest.java

@@ -1,10 +1,10 @@
 package fr.free.nrw.commons;
 
-import static org.hamcrest.CoreMatchers.is;
-
 import org.junit.Assert;
 import org.junit.Test;
 
+import static org.hamcrest.CoreMatchers.is;
+
 public class UtilsTest {
     @Test public void stripLocalizedStringPass() {
         Assert.assertThat(Utils.stripLocalizedString("Hello"), is("Hello"));
@@ -13,4 +13,20 @@ public class UtilsTest {
     @Test public void stripLocalizedStringJa() {
         Assert.assertThat(Utils.stripLocalizedString("\"こんにちは\"@ja"), is("こんにちは"));
     }
+
+    @Test public void capitalizeLowercase() {
+        Assert.assertThat(Utils.capitalize("hello"), is("Hello"));
+    }
+
+    @Test public void capitalizeFullCaps() {
+        Assert.assertThat(Utils.capitalize("HELLO"), is("HELLO"));
+    }
+
+    @Test public void capitalizeNumbersPass() {
+        Assert.assertThat(Utils.capitalize("12x"), is("12x"));
+    }
+
+    @Test public void capitalizeJaPass() {
+        Assert.assertThat(Utils.capitalize("こんにちは"), is("こんにちは"));
+    }
 }