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android-如何在timertask中禁用声音池而不停止它

android-sound soundpool timertask timer android

0

Pink Jazz · 技术社区 · 6 年前

我试图创造一个节拍器的声音,然而,什么是不起作用的能力,使其静音。我希望能够在不停止timertask的情况下将其静音,因为我希望取消静音后的速率保持一致。这是我的代码:

public class Metronome {
    private boolean mute;
    private boolean playing = false;
    private Timer mainTimer;
    private SoundPool mSoundPool;
    int mSoundID;

    public Metronome(Context context) {
        mSoundPool = new SoundPool(2, AudioManager.STREAM_MUSIC, 0);
        mSoundID = mSoundPool.load(context, R.raw.metronome, 1);
    }

    public void play(float pace, boolean mute) {
        mainTimer = new Timer();
        MyTimerTask mainTimerTask = new MyTimerTask();
        mainTimer.schedule(mainTimerTask, 0, Math.round(pace * 1000));
        this.mute = mute;
        playing = true;
    }

    public void stop() {
        mainTimer.cancel();
        mainTimer.purge();
        playing = false;
    }

    public boolean isPlaying() {
        return playing;
    }

    public void setMute(boolean mute) {
        this.mute = mute;
        if (mute) {
            mSoundPool.setVolume(mSoundID, 0, 0);
        } else {
            mSoundPool.setVolume(mSoundID, 1, 1);
        }
    }

    private void playSound() {
        if (!mute) {
            mSoundPool.play(mSoundID, 1, 1, 1, 0, 1);
        }
    }

    class MyTimerTask extends TimerTask {

        @Override
        public void run() {
            playSound();
        }
    }
}

但是,打电话 setMute(true) 不起作用。有人知道我怎样才能使我的声音池静音吗?

0 回复 | 直到 6 年前

1

0

Pink Jazz 6 年前

明白了。它在我使用静态方法和变量时工作。

public class Metronome {
    public static boolean mute = false;
    public static boolean playing = false;
    private static Timer mainTimer;
    private static SoundPool soundPool;
    private static int soundID;

    public static void loadSound(Context context) {
        soundPool = new SoundPool(2, AudioManager.STREAM_MUSIC, 0);
        soundID = soundPool.load(context, R.raw.metronome, 1);
    }

    public static void play(float pace, boolean isMuted) {
        mainTimer = new Timer();
        MyTimerTask mainTimerTask = new MyTimerTask();
        mainTimer.schedule(mainTimerTask, 0, Math.round(pace * 1000));
        mute = isMuted;
        playing = true;
    }

    public static void stop() {
        mainTimer.cancel();
        mainTimer.purge();
        playing = false;
    }

    static class MyTimerTask extends TimerTask {
        @Override
        public void run() {
            playSound();
        }

        private void playSound() {
            if (!mute) {
                soundPool.play(soundID, 1, 1, 1, 0, 1);
            }
        }
    }
}