@Override
public void setListening(boolean listening) {
if (mListening == listening) return;
mListening = listening;
if (listening) {
mMediaSessionManager.addOnActiveSessionsChangedListener(this, null);
} else {
mMediaSessionManager.removeOnActiveSessionsChangedListener(this);
}
}
public VisualizerTile(Host host) {
super(host);
mMediaSessionManager =
(MediaSessionManager) mContext.getSystemService(Context.MEDIA_SESSION_SERVICE);
// initialize state
List<MediaController> activeSessions = mMediaSessionManager.getActiveSessions(null);
for (MediaController activeSession : activeSessions) {
PlaybackState playbackState = activeSession.getPlaybackState();
if (playbackState != null && playbackState.getState() == PlaybackState.STATE_PLAYING) {
mIsAnythingPlaying = true;
break;
}
}
if (mIsAnythingPlaying && !mLinked) {
AsyncTask.execute(mLinkVisualizer);
} else if (!mIsAnythingPlaying && mLinked) {
AsyncTask.execute(mUnlinkVisualizer);
}
}