Add feedback when downloading image

fixes #388

app/src/main/java/com/keylesspalace/tusky/ViewMediaActivity.java

@@ -41,6 +41,7 @@ import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.widget.Toast;
 
 import com.keylesspalace.tusky.fragment.ViewMediaFragment;
 import com.keylesspalace.tusky.pager.ImagePagerAdapter;
@@ -218,6 +219,10 @@ public class ViewMediaActivity extends BaseActivity implements ViewMediaFragment
 
             String filename = new File(url).getName();
 
+            String toastText = String.format(getResources().getString(R.string.download_image),
+                    filename);
+            Toast.makeText(this.getApplicationContext(), toastText, Toast.LENGTH_SHORT).show();
+
             DownloadManager downloadManager =
                     (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
 

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

@@ -99,6 +99,7 @@
     <string name="action_view_mutes">Utilisateurs muets</string>
     <string name="send_status_link_to">Partager l’URL de votre pouet avec…</string>
     <string name="send_status_content_to">Partager le pouet avec…</string>
+    <string name="download_image">Téléchargement de %1$s</string>
 
     <string name="confirmation_send">Pouet !</string>
     <string name="confirmation_reported">Envoyé !</string>

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

@@ -100,6 +100,7 @@
     <string name="action_reject">Reject</string>
     <string name="action_search">Search</string>
     <string name="action_access_saved_toot">Drafts</string>
+    <string name="download_image">Downloading %1$s</string>
 
     <string name="send_status_link_to">Share toot URL to…</string>
     <string name="send_status_content_to">Share toot to…</string>