Added an animation when adding a song to favorites from the now playing screen.

app/src/main/java/com/kabouzeid/gramophone/dialogs/AddToPlaylistDialog.java

@@ -57,7 +57,7 @@ public class AddToPlaylistDialog extends DialogFragment {
                             CreatePlaylistDialog.create(songs).show(getActivity().getSupportFragmentManager(), "ADD_TO_PLAYLIST");
                         } else {
                             materialDialog.dismiss();
-                            PlaylistsUtil.addToPlaylist(getActivity(), songs, playlists.get(i - 1).id);
+                            PlaylistsUtil.addToPlaylist(getActivity(), songs, playlists.get(i - 1).id, true);
                         }
                     }
                 })

app/src/main/java/com/kabouzeid/gramophone/dialogs/CreatePlaylistDialog.java

@@ -57,7 +57,7 @@ public class CreatePlaylistDialog extends DialogFragment {
                             if (playlistId != -1 && getActivity() != null) {
                                 //noinspection unchecked
                                 ArrayList<Song> songs = (ArrayList<Song>) getArguments().getSerializable("songs");
-                                PlaylistsUtil.addToPlaylist(getActivity(), songs, playlistId);
+                                PlaylistsUtil.addToPlaylist(getActivity(), songs, playlistId, true);
                             }
                         }
                     }

app/src/main/java/com/kabouzeid/gramophone/ui/activities/MusicControllerActivity.java

@@ -25,6 +25,7 @@ import android.view.View;
 import android.view.ViewAnimationUtils;
 import android.view.ViewGroup;
 import android.view.animation.DecelerateInterpolator;
+import android.view.animation.OvershootInterpolator;
 import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -97,6 +98,8 @@ public class MusicControllerActivity extends AbsFabActivity {
     SquareIfPlaceImageView albumArt;
     @InjectView(R.id.toolbar)
     Toolbar toolbar;
+    @InjectView(R.id.favorite_icon)
+    ImageView favoriteIcon;
 
     TextView songCurrentProgress;
     TextView songTotalTime;
@@ -542,6 +545,56 @@ public class MusicControllerActivity extends AbsFabActivity {
         updateShuffleState();
     }
 
+    private void animateSetFavorite() {
+        favoriteIcon.clearAnimation();
+
+        favoriteIcon.setAlpha(0f);
+        favoriteIcon.setScaleX(0f);
+        favoriteIcon.setScaleY(0f);
+        favoriteIcon.setVisibility(View.VISIBLE);
+        favoriteIcon.setPivotX(favoriteIcon.getWidth() / 2);
+        favoriteIcon.setPivotY(favoriteIcon.getHeight() / 2);
+
+        favoriteIcon.animate()
+                .setDuration(600)
+                .setInterpolator(new OvershootInterpolator())
+                .scaleX(1f)
+                .scaleY(1f)
+                .alpha(1f)
+                .setListener(new Animator.AnimatorListener() {
+                    @Override
+                    public void onAnimationStart(Animator animation) {
+
+                    }
+
+                    @Override
+                    public void onAnimationEnd(Animator animation) {
+
+                    }
+
+                    @Override
+                    public void onAnimationCancel(Animator animation) {
+                        favoriteIcon.setVisibility(View.INVISIBLE);
+                    }
+
+                    @Override
+                    public void onAnimationRepeat(Animator animation) {
+
+                    }
+                })
+                .withEndAction(new Runnable() {
+                    @Override
+                    public void run() {
+                        favoriteIcon.animate()
+                                .setDuration(300)
+                                .setInterpolator(new DecelerateInterpolator())
+                                .alpha(0f)
+                                .start();
+                    }
+                })
+                .start();
+    }
+
     @Override
     public void onPlayingMetaChanged() {
         super.onPlayingMetaChanged();
@@ -576,6 +629,9 @@ public class MusicControllerActivity extends AbsFabActivity {
         switch (id) {
             case R.id.action_toggle_favorite:
                 MusicUtil.toggleFavorite(this, song);
+                if (MusicUtil.isFavorite(this, song)) {
+                    animateSetFavorite();
+                }
                 invalidateOptionsMenu();
                 return true;
             case R.id.action_share:

app/src/main/java/com/kabouzeid/gramophone/util/MusicUtil.java

@@ -209,7 +209,7 @@ public class MusicUtil {
         if (isFavorite(context, song)) {
             PlaylistsUtil.removeFromPlaylist(context, song, getFavoritesPlaylist(context).id);
         } else {
-            PlaylistsUtil.addToPlaylist(context, song, getOrCreateFavoritesPlaylist(context).id);
+            PlaylistsUtil.addToPlaylist(context, song, getOrCreateFavoritesPlaylist(context).id, false);
         }
     }
 }

app/src/main/java/com/kabouzeid/gramophone/util/PlaylistsUtil.java

@@ -85,13 +85,13 @@ public class PlaylistsUtil {
         App.bus.post(new DataBaseChangedEvent(DataBaseChangedEvent.PLAYLISTS_CHANGED));
     }
 
-    public static void addToPlaylist(final Context context, final Song song, final int playlistId) {
+    public static void addToPlaylist(final Context context, final Song song, final int playlistId, final boolean showToastOnFinish) {
         List<Song> helperList = new ArrayList<>();
         helperList.add(song);
-        addToPlaylist(context, helperList, playlistId);
+        addToPlaylist(context, helperList, playlistId, showToastOnFinish);
     }
 
-    public static void addToPlaylist(final Context context, final List<Song> songs, final int playlistId) {
+    public static void addToPlaylist(final Context context, final List<Song> songs, final int playlistId, final boolean showToastOnFinish) {
         final int size = songs.size();
         final ContentResolver resolver = context.getContentResolver();
         final String[] projection = new String[]{
@@ -117,8 +117,10 @@ public class PlaylistsUtil {
         for (int offSet = 0; offSet < size; offSet += 1000)
             numinserted += resolver.bulkInsert(uri, makeInsertItems(songs, offSet, 1000, base));
 
-        Toast.makeText(context, context.getResources().getString(
+        if (showToastOnFinish) {
-                R.string.inserted_x_songs_into_playlist, numinserted), Toast.LENGTH_SHORT).show();
+            Toast.makeText(context, context.getResources().getString(
+                    R.string.inserted_x_songs_into_playlist, numinserted), Toast.LENGTH_SHORT).show();
+        }
         App.bus.post(new DataBaseChangedEvent(DataBaseChangedEvent.PLAYLISTS_CHANGED));
     }
 

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

@@ -208,6 +208,14 @@
             android:transitionName="@string/transition_album_cover"
             tools:ignore="ContentDescription,UnusedAttribute" />
 
+        <ImageView
+            android:id="@+id/favorite_icon"
+            android:visibility="invisible"
+            android:layout_gravity="center"
+            android:src="@drawable/ic_favorite_red_a400_96dp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
         <RelativeLayout
             android:id="@+id/default_progress_container"
             android:layout_width="match_parent"