private final OALAudioTrack track;
OnCompletionListener onCompletionListener;
public IOSMusic (OALAudioTrack track) {
this.track = track;
this.track.setDelegate(new AVAudioPlayerDelegateAdapter() {
@Override
public void didFinishPlaying (NSObject player, boolean success) {
final OnCompletionListener listener = onCompletionListener;
if (listener != null) {
Gdx.app.postRunnable(new Runnable() {