/**
* Returns true when running Android Auto or a car dock.
*
* <p>A preferable way of detecting if your app is running in the context of an Android Auto
* compatible car is by registering a BroadcastReceiver for the action {@link
* CarHelper#ACTION_MEDIA_STATUS}. See a sample implementation in {@link MusicService#onCreate()}.
*
* @param c Context to detect UI Mode.
* @return true when device is running in car mode, false otherwise.
*/
public static boolean isCarUiMode(Context c) {
UiModeManager uiModeManager = (UiModeManager) c.getSystemService(Context.UI_MODE_SERVICE);
if (uiModeManager.getCurrentModeType() == Configuration.UI_MODE_TYPE_CAR) {
LogHelper.d(TAG, "Running in Car mode");
return true;
} else {
LogHelper.d(TAG, "Running on a non-Car mode");
return false;
}
}
public static List<MediaSession.QueueItem> getPlayingQueue(
String mediaId, MusicProvider musicProvider) {
// extract the browsing hierarchy from the media ID:
String[] hierarchy = MediaIDHelper.getHierarchy(mediaId);
if (hierarchy.length != 2) {
LogHelper.e(TAG, "Could not build a playing queue for this mediaId: ", mediaId);
return null;
}
String categoryType = hierarchy[0];
String categoryValue = hierarchy[1];
LogHelper.d(TAG, "Creating playing queue for ", categoryType, ", ", categoryValue);
Iterable<MediaMetadata> tracks = null;
// This sample only supports genre and by_search category types.
if (categoryType.equals(MEDIA_ID_MUSICS_BY_GENRE)) {
tracks = musicProvider.getMusicsByGenre(categoryValue);
} else if (categoryType.equals(MEDIA_ID_MUSICS_BY_SEARCH)) {
tracks = musicProvider.searchMusicBySongTitle(categoryValue);
}
if (tracks == null) {
LogHelper.e(TAG, "Unrecognized category type: ", categoryType, " for media ", mediaId);
return null;
}
return convertToQueue(tracks, hierarchy[0], hierarchy[1]);
}
public static List<MediaSession.QueueItem> getPlayingQueueFromSearch(
String query, Bundle queryParams, MusicProvider musicProvider) {
LogHelper.d(
TAG, "Creating playing queue for musics from search: ", query, " params=", queryParams);
VoiceSearchParams params = new VoiceSearchParams(query, queryParams);
LogHelper.d(TAG, "VoiceSearchParams: ", params);
if (params.isAny) {
// If isAny is true, we will play anything. This is app-dependent, and can be,
// for example, favorite playlists, "I'm feeling lucky", most recent, etc.
return getRandomQueue(musicProvider);
}
Iterable<MediaMetadata> result = null;
if (params.isAlbumFocus) {
result = musicProvider.searchMusicByAlbum(params.album);
} else if (params.isGenreFocus) {
result = musicProvider.getMusicsByGenre(params.genre);
} else if (params.isArtistFocus) {
result = musicProvider.searchMusicByArtist(params.artist);
} else if (params.isSongFocus) {
result = musicProvider.searchMusicBySongTitle(params.song);
}
// If there was no results using media focus parameter, we do an unstructured query.
// This is useful when the user is searching for something that looks like an artist
// to Google, for example, but is not. For example, a user searching for Madonna on
// a PodCast application wouldn't get results if we only looked at the
// Artist (podcast author). Then, we can instead do an unstructured search.
if (params.isUnstructured || result == null || !result.iterator().hasNext()) {
// To keep it simple for this example, we do unstructured searches on the
// song title only. A real world application could search on other fields as well.
result = musicProvider.searchMusicBySongTitle(query);
}
return convertToQueue(result, MEDIA_ID_MUSICS_BY_SEARCH, query);
}
/**
* Create a random queue.
*
* @param musicProvider the provider used for fetching music.
* @return list containing {@link MediaSession.QueueItem}'s
*/
public static List<MediaSession.QueueItem> getRandomQueue(MusicProvider musicProvider) {
List<MediaMetadata> result = new ArrayList<>();
for (String genre : musicProvider.getGenres()) {
Iterable<MediaMetadata> tracks = musicProvider.getMusicsByGenre(genre);
for (MediaMetadata track : tracks) {
if (ThreadLocalRandom.current().nextBoolean()) {
result.add(track);
}
}
}
LogHelper.d(TAG, "getRandomQueue: result.size=", result.size());
Collections.shuffle(result);
return convertToQueue(result, MEDIA_ID_MUSICS_BY_SEARCH, "random");
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/* int flag = Settings.System.getInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 5);
LogHelper.d(TAG+" flag "+flag);
Settings.System.putInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 1);
Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
intent.putExtra("state", true);
sendBroadcast(intent);*/
// Intent startServiceIntent = new Intent(this,TimerService.class);
// startService(startServiceIntent);
LogHelper.d(TAG + SystemClock.elapsedRealtime());
}
