android - Activity 开始时如何播放声音

Question

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    View view = findViewById(R.id.textView1);
    view.setOnTouchListener(this);

    this.setVolumeControlStream(AudioManager.STREAM_MUSIC);

    soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 0);
    soundPool.setOnLoadCompleteListener(new OnLoadCompleteListener() {
        @Override
        public void onLoadComplete(SoundPool soundPool, int sampleId,
                int status) {
            loaded = true;
        }
    });
    soundID = soundPool.load(this, R.raw.dog_bark, 1);

 }
;
@Override
public boolean onTouch(View v, MotionEvent event) {
    if (event.getAction() == MotionEvent.ACTION_DOWN) {

        AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
        float actualVolume = (float) audioManager
                .getStreamVolume(AudioManager.STREAM_MUSIC);
        float maxVolume = (float) audioManager
                .getStreamMaxVolume(AudioManager.STREAM_MUSIC);
        float volume = actualVolume / maxVolume;

        if (loaded) {
            soundPool.play(soundID, volume, volume, 1, 0, 1f);
        }
    }
    return false;
}
}

我试过这种方式，但声音是在触摸事件时播放的。我希望在我的 Activity 开始时自动播放声音。但它应该在循环完成后停止并在触摸事件时重新开始。请帮忙。

Answer 1

在您想听音乐的 Activity 中使用它

mMediaPlayer = new MediaPlayer();
mMediaPlayer = MediaPlayer.create(this, R.raw.sound1);
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setLooping(true);
mMediaPlayer.start();