public static List<MediaSessionCompat.QueueItem> getPlayingQueue(
String mediaId, MusicProvider musicProvider) {
// extract the browsing hierarchy from the media ID:
String[] hierarchy = MediaIDHelper.getHierarchy(mediaId);
if (hierarchy.length != 2) {
LogUtils.e(TAG, "Could not build a playing queue for this mediaId: ", mediaId);
return null;
}
String categoryType = hierarchy[0];
String categoryValue = hierarchy[1];
LogUtils.d(TAG, "Creating playing queue for ", categoryType, ", ", categoryValue);
Iterable<MediaMetadataCompat> tracks = null;
// This sample only supports genre and by_search category types.
switch (categoryType) {
case MEDIA_ID_MUSICS_BY_GENRE:
tracks = musicProvider.getMusicsByGenre(categoryValue);
break;
case MEDIA_ID_MUSICS_BY_SEARCH:
tracks = musicProvider.searchMusicBySongTitle(categoryValue);
break;
case MEDIA_ID_MUSICS_BY_ALBUM:
tracks = musicProvider.getMusicsByAlbum(categoryValue);
break;
case MEDIA_ID_MUSICS_BY_ARTIST:
tracks = musicProvider.getMusicsByArtist(categoryValue);
break;
}
if (tracks == null) {
LogUtils.e(TAG, "Unrecognized category type: ", categoryType, " for media ", mediaId);
return null;
}
return convertToQueue(tracks, hierarchy[0], hierarchy[1]);
}
