@Override
  public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
    // Check for database errors
    if (data == null) {
      return;
    }

    mGenreIdIndex = data.getColumnIndexOrThrow(Audio.Genres._ID);
    mGenreNameIndex = data.getColumnIndexOrThrow(Audio.Genres.NAME);
    mGenreAdapter.changeCursor(data);
    mCursor = data;
  }
 @Override
 public void onLoaderReset(Loader<Cursor> loader) {
   if (mGenreAdapter != null) mGenreAdapter.changeCursor(null);
 }