我怎样才能让Android媒体播放器播放的声音？ [英] How can I make android mediaplayer play sound?

问题描述

我不知道为什么它不工作，没有错误记录在logcat中，但我不能听到声音。

I don't know why it doesn't works, there is no error logged in logcat, but I cannot hear a sound.

public static void DeclararSonido(int numero, Context contexto){
    switch(numero){
    case 0:
        mp = MediaPlayer.create(contexto, R.raw.alan);
        break;          
    }
}

public static void TocarPiedra( int posicion, Context contexto){
    DeclararSonido(posicion, contexto);


    mp.start();
    mp.stop();
    mp.release();
}
public static void TocarSirena(Context contexto){
    MediaPlayer mp2= MediaPlayer.create(contexto, R.raw.doh);


    mp2.start();
    mp2.stop();
    mp2.release();

}

如果我删除 mp2.stop（）; 和 mp2.release（）; 和 mp.stop（）; 和 mp.release（）; 应用程序播放声音，但该文件没有被释放...

If I erase mp2.stop(); and mp2.release(); AND mp.stop(); and mp.release(); the app plays the sound, but the file is not released...

推荐答案

您显然不希望开始，然后停在离..

You obviously do not want to Start and then Stop right away..

现在的问题是，你在执行后对方这些正确的：

The problem is that you are executing these right after each other:

mp.start();      // starts playback
mp.stop();       // .. then stops immediately ..
mp.release();

您应该开始，然后当声音进行播放，发布。您可以使用完成事件挂钩一个侦听和释放有：

You should start, and then when the sound is done playing, release. You can use the Completion event to hook up a listener and release there:

mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener(){
    public void onCompletion(MediaPlayer player) {
       player.release();          
    }
})

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