Playing Multiple sounds at the same time in Android

Intent intent = new Intent(context, YourActivity.class)
        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
        .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

PendingIntent pi = PendingIntent.getActivity(context, appWidgetId, intent,
                                             PendingIntent.FLAG_UPDATE_CURRENT);

int currentWidgetId = this.getIntent().getIntExtra(
       AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);

private void updateWidgetView() {
    views = new RemoteViews(YourWidget.class.getPackage().getName(),
                            R.layout.main_widget);
    mgr = AppWidgetManager.getInstance(this);
    views.setTextViewText(R.id.some_text_view, someText);
    // Tell the AppWidgetManager to perform an update on the current App Widget
    mgr.updateAppWidget(currentWidgetId, views);
}

public static final int SOUND_1 = 1;
public static final int SOUND_2 = 2;

SoundPool mSoundPool;
HashMap<Integer, Integer> mHashMap;

@Override
public void onCreate(Bundle savedInstanceState){
  mSoundPool = new SoundPool(2, AudioManager.STREAM_MUSIC, 100);
  mSoundMap = new HashMap<Integer, Integer>();

  if(mSoundPool != null){
    mSoundMap.put(SOUND_1, mSoundPool.load(this, R.raw.sound1, 1));
    mSoundMap.put(SOUND_2, mSoundPool.load(this, R.raw.sound2, 1));
  }
}

/*
*Call this function from code with the sound you want e.g. playSound(SOUND_1);
*/
public void playSound(int sound) {
    AudioManager mgr = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
    float streamVolumeCurrent = mgr.getStreamVolume(AudioManager.STREAM_MUSIC);
    float streamVolumeMax = mgr.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    float volume = streamVolumeCurrent / streamVolumeMax;  

    if(mSoundPool != null){
        mSoundPool.play(mSoundMap.get(sound), volume, volume, 1, 0, 1.0f);
    }
}

var audioPlayer = AVAudioPlayer()

func playSound() {

var dropSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("drop", ofType: "mp3")!)

AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
AVAudioSession.sharedInstance().setActive(true, error: nil)

var error: NSError?
audioPlayer = AVAudioPlayer(contentsOfURL: dropSound, error: &error)
audioPlayer.prepareToPlay()
}

audioPlayer.play()