Question

我对编程很新，并且在遇到小问题时遇到困难。我创建了一个容易初始化并开始工作的对象，如何阻止该对象运行。

以下是我的代码：

btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                animationFart();
                playRandomSound();

            }

            private void playRandomSound() {
                // TODO Auto-generated method stub
                int randomInt = (new Random().nextInt(soundList.size()));
                int sound = soundList.get(randomInt);
                MediaPlayer mp = MediaPlayer.create(btn.getContext(), sound);
                mp.start();
                mp.setOnCompletionListener(new OnCompletionListener() {
                    public void onCompletion(MediaPlayer mp) {
                        mp.release();

                    }

                });
            }

        });

如何通过按下按钮来停止此操作。

Answer 1

全局定义MediaPlayer mp;并使用mp.stop();：

if (mp!=null && mp.isPlaying()) {
  mp.stop();
}

Answer 2

使用此课程

public class AudioPlayer {

  private MediaPlayer mediaPlayer;

  public void play(Context context, int resId) {
    stop();
    mediaPlayer = MediaPlayer.create(context, resId);
    mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            stop();
        }
    });
    mediaPlayer.start();
  }

  public void stop() {
    if (mediaPlayer != null) {
        mediaPlayer.release();
        mediaPlayer = null;
    }
  }

  public boolean isPlaying() {
    return mediaPlayer != null;
  }
}

如何通过按下按钮来停止对象

2 个答案: