[英]Can't play 2 Music instances on Android with LibGDX
我正在用LibGDX進行游戲,我需要同時演奏2首旋律。 但是,在Android上加載和播放2個旋律不起作用。 這是我做的小測試。 我什至嘗試使用LibGDX AssetManager,但仍然沒有成功。
Music test1;
Music test2;
AssetManager manager = new AssetManager();
@Override public void create()
{
manager.load(Melody.REVERSION.getPath(), Music.class);
manager.load(Melody.COLLAPSE.getPath(), Music.class);
while (!manager.update()) {}
manager.finishLoading();
test1 = manager.get(Melody.REVERSION.getPath());
test2 = manager.get(Melody.COLLAPSE.getPath());
test1.setVolume(1);
test1.play();
test2.setVolume(1);
test2.play();
}
我目前正在使用SoundPool庫。 這樣我就可以同時再現不同的聲音效果,但是我不知道這是否是最好的音樂播放方法。
與帖子相關: 使用聲音池示例播放聲音
使用MediaPlayer和CyclicBarrier 編輯 :
public enum MP_COMMAND {
START,
STOP,
PAUSE
}
/**
* Uses threads to execute synced commands for the current video media player and
* background music player in tandem.
*/
public void syncedCommand(MediaPlayer player1, MediaPlayer player2, MP_COMMAND command) {
final CyclicBarrier commandBarrier = new CyclicBarrier(2);
new Thread(new SyncedCommandService(commandBarrier, player1, command)).start();
new Thread(new SyncedCommandService(commandBarrier, player2, command)).start();
}
/**
* Inner class that starts a given media player synchronously
* with other threads utilizing SyncedStartService
*/
private class SyncedCommandService implements Runnable {
private final CyclicBarrier mCommandBarrier;
private MediaPlayerTest.MP_COMMAND mCommand;
private MediaPlayer mMediaPlayer;
public SyncedCommandService(CyclicBarrier barrier, MediaPlayer player, MediaPlayerTest.MP_COMMAND command) {
mCommandBarrier = barrier;
mMediaPlayer = player;
mCommand = command;
}
@Override public void run() {
try {
mCommandBarrier.await();
} catch (InterruptedException | BrokenBarrierException e) {
e.printStackTrace();
}
switch (mCommand) {
case START:
mMediaPlayer.start();
break;
case STOP:
mMediaPlayer.stop();
break;
case PAUSE:
mMediaPlayer.pause();
break;
default:
break;
}
}
}
要播放兩首歌曲,請呼叫:
MediaPlayer mCurrentVideoPlayer = MediaPlayer.create(this, R.raw.track1);
MediaPlayer mBackgroundMusic = MediaPlayer.create(this, R.raw.track2);
syncedCommand(mCurrentVideoPlayer, mBackgroundMusic, MP_COMMAND.START);
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