Question

我想在我的android应用程序中回放mp3文件（半秒）。我能够在模拟器上做到这一点，但在手机上它们都是相互重叠的。我使用过OnCompletionListerner并停止了Mediaplayer 以下是我的一个mp3文件的代码：

mPlayer = MediaPlayer.create(MainActivity.this, R.raw.a10);
mPlayer.start();
mPlayer.setOnCompletionListener(new OnCompletionListener() {
@Override
  public void onCompletion(MediaPlayer mPlayer) {
       // TODO Auto-generated method stub
        mPlayer.stop();
 }
});

有人可以建议任何方法来阻止重叠吗？

Answer 1

请尝试以下示例：

MediaPlayer mp1, mp2;
Timer timer;

// Create two different instances of mediaplayer
mp1 = MediaPlayer.create(MainActivity.this, R.raw.a1);        
mp2 = MediaPlayer.create(MainActivity.this, R.raw.a2);

// Create the timertask 
timer = new Timer("mytimer");
timer.schedule(timertask1, 1000);

<强> onCompletionListeners：

// Completion listener for Audio file 1. 
    mp1.setOnCompletionListener(new OnCompletionListener() {
        @Override
        public void onCompletion(final MediaPlayer cim) {
            //On completion of first audio, release the resources of mediaplayer
            mp1.release();
            mp1 = null;// free up memory
            // Start the timertask of 2nd audio file  
            timer = new Timer("mytimer");
            timer.schedule(timertask2, 1000);
        }
    });

    mp2.setOnCompletionListener(new OnCompletionListener() {
        @Override
        public void onCompletion(final MediaPlayer cim) {
           //On completion of 2nd audio, release the resources of mediaplayer
            mp2.release();
            mp2 = null;
            // Start the timertask of 1st audio file or nxt audio file if you want to              play file or simplly you can stop here.
            timer = new Timer("mytimer");
            timer.schedule(timertask1, 1000);
        }
    });

计时器任务：

  private TimerTask timertask1 = new TimerTask() {
    @Override
    public void run() {
           mp1.start();
    }
  };

  private TimerTask timertask2 = new TimerTask() {
    @Override
    public void run() {
           mp2.start();
    }
  };

注意：
给出的示例仅考虑两个音频文件，因此两个特定的onCompletionlisteners和timertasks。但是我建议你使用通用代码来创建mediaplayer实例，onCompletionlistener和timertask。

背靠背小型MP3文件在Android中播放

1 个答案: