java - 如何在 Android 中使用 Sound with Toast

Question

我想在 Android 应用程序中弹出 toast 时播放声音。

这是我的主类中的 toast 代码:

private void workEndNotification() {
    //Custom Toast notification for the Work End Reminder.
    LayoutInflater inflaterWork = getLayoutInflater();
    View toastLayout = inflaterWork.inflate(R.layout.work_notification_toast, (ViewGroup) findViewById(R.id.toast_root_view));
    TextView header = (TextView) toastLayout.findViewById(R.id.toast_header);
    header.setText("Work Day Over Soon!");
    final Toast toastWork = new Toast(getApplicationContext());
    toastWork.setGravity(Gravity.CENTER, 0, 0);
    toastWork.setDuration(Toast.LENGTH_SHORT);
    toastWork.setView(toastLayout);
    toastWork.show();

    myHandler.postDelayed(new Runnable() {
        public void run() {
            toastWork.cancel();
        }
    }, 1);
};

这是我的 SoundPool 类中的声音代码 ( http://www.vogella.com/tutorials/AndroidMedia/article.html ):

class PlaySound extends Activity implements OnTouchListener {
private SoundPool soundPool;
private int soundID;
boolean loaded = false;


/** Called when the activity is first created. */

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.work_notification_toast);
    View view = findViewById(R.id.toast_header);
    view.setOnTouchListener(this);
    // Set the hardware buttons to control the music
    this.setVolumeControlStream(AudioManager.STREAM_MUSIC);
    // Load the sound
    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.sound1, 1);

}

@Override
public boolean onTouch(View v, MotionEvent event) {
    if (event.getAction() == MotionEvent.ACTION_DOWN) {
        // Getting the user sound settings
        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;
        // Is the sound loaded already?
        if (loaded) {
            soundPool.play(soundID, volume, volume, 1, 0, 1f);
            Log.e("Test", "Played sound");
        }
    }
    return false;
}
}

我知道我没有在我的 toast 方法中调用它，并且我知道我正在使用触摸 View 。我怎样才能做到只有当 toast 出现时才出现声音，即同时出现。我一直在努力，但没有成功。

我不想碰触什么的。只是为了简单地玩 toast 。

Answer 1

创建一个这样的函数

private void playSound(int resId){
    mp = MediaPlayer.create(MainActivity.this, resId);
       mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            mediaPlayer.reset();
            mediaPlayer.release();
        }
    });
    mp.start();
}

并在显示 Toast 的位置调用它，如下所示

playSound(R.raw.sound);

您还需要替换资源，使其与您的资源匹配

编辑:您似乎想播放几种声音。您可以自己制作一个简单的声音池

像这样创建一个你想要播放的int数组或资源，并监听MediaPlayer何时完成播放，告诉他播放下一个，直到播放数组中的最后一个。

public class TestActivity extends Activity implements MediaPlayer.OnCompletionListener {


    private final int[] soundResources = {R.raw.sound1, R.raw.sound2, R.raw.sound3};
    private int counter = 0;
    private MediaPlayer mp;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        playSound(counter);
    }

    private void playSound(int resId){
        mp = MediaPlayer.create(TestActivity.this, resId);
        mp.setOnCompletionListener(this);
        mp.start();
    }

    @Override
    public void onCompletion(MediaPlayer mediaPlayer) {
        mp.reset();
        mp.release();
        if(counter < soundResources.length ) {
            playSound(soundResources[++counter]);
        }
    }
}