您如何检测声音文件何时完成? [英] How do you detect when a sound file has finished?

问题描述

我正在广播接收器活动中使用此代码播放声音文件:

I am playing a sound file using this code inside a broadcast receiver activity:

notification.sound = Uri.parse("android.resource://emad.app/raw/seven_chimes");

我想检测此文件何时播放完毕.

I would like to detect when this file has finished playing.

我尝试了这样的循环，但我认为这仅对媒体播放器有益，因为即使我确定声音文件仍在播放，它也总是 = false:

I tried a loop like this but I think this is only good for the media player because it always = false even though I made sure the sound file was still playing:

/*
 * Stay here until the chime sound is finished.
 */
   while (manager.isMusicActive()){
   }

你能告诉我我应该用什么来代替 manager.isMusicActive()?

Can you show me what I should use instead of manager.isMusicActive()?

推荐答案

您可以使用 MediaPlayer 类并添加一个 Completion 侦听器以在声音播放完毕时激活

You can use the MediaPlayer class and add a Completion listener to be activated when the sound finishes playing

MediaPlayer mp = MediaPlayer.create(this,Uri.parse("android.resource://emad.app/raw/seven_chimes"));

mp.setOnCompletionListener(new OnCompletionListener() {

    @Override
    public void onCompletion(MediaPlayer mp) {
        performOnEnd();
    }

});

mp.start();

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