Question

我正在尝试使用SoundPool播放sound.wav，然后使用CountDownTimer来控制播放声音的时间。我跑了代码，声音播放清晰。问题是，无论我输入什么“millisInFuture”，似乎根本不会触发CountDownTimer的onFinish / onTick功能（因此SoundPool根本没有停止，声音连续不停地播放）。我抓住了以下重要细节：

SoundPool初始化如下：

SoundPool.Builder builder = new SoundPool.Builder();
        builder.setMaxStreams(37);
        AudioAttributes.Builder attrBuilder = new AudioAttributes.Builder();
        attrBuilder.setLegacyStreamType(AudioManager.STREAM_MUSIC);
        builder.setAudioAttributes(attrBuilder.build());
        soundPool = builder.build();

，并加载了一些sound.wav：

resId = getResId(instrument, "c5", packageName);
c5 = soundPool.load(ctx, resId, 1);

变量值初始化如下：

duration = 250;
INTERVAL = 5;

代码：

public void play(long duration, float volume){
    float currentVolume = volume;
    stream = soundPool.play(id, currentVolume, currentVolume, 1, -1, 1f);    // Sound is playing clearly and continuously without stopping
    Log.i("Note.Play","Note now playing id=" + id);    // I can see this in the run/debug log

    new CountDownTimer(duration, INTERVAL) {

        public void onTick(long millisUntilFinished) {
            Log.i("CountDownTimer","CountDownTimer now checking the SoundPool to play ");    // I can NOT see this in the run/debug log
        }

        public void onFinish() {
            Log.i("CountDownTimer","FCountDownTimer now stopping the SoundPool to play");    // I can NOT see this in the run/debug log
            soundPool.stop(stream);
            isIdle = true;
        }
    }.start();
}

任何人都知道我做错了什么？或者我可以检查什么以了解原因？

延迟更新： 我只是发现失败是因为我在Main（）线程中放了一个while循环来接收“isIdle”的状态（以便检测声音是否完成播放）。那么有没有办法让void play（，）函数通知Main（）线程CountDownTimer已经完成并继续播放下一个声音？

感谢。

无法触发CountDownTimer的onFinish（）/ onTick（）函数？

0 个答案: