加载声音的过程

public void initSound(){
bgMusic[0]=MediaPlayer.create(this, R.raw.screen_bg);
bgMusic[0].setLooping(true);
bgMusic[0].setVolume(0.3f, 0.3f);

soundPool=new SoundPool(4, AudioManager.STREAM_MUSIC, 100);
soundMap=new HashMap<Integer, Integer>();
soundMap.put(<span style="color:#ff0000;">0</span>, soundPool.load(this, R.raw.awp_fire,1));
soundMap.put(<span style="color:#ff0000;">1</span>, soundPool.load(this, R.raw.awp_fire,1));
}

public void playSound(int <span style="color:#ff0000;">sound</span>,int<span style="color:#3333ff;"> loop</span>){
if(!musicFlag){
return;
}
AudioManager manager=(AudioManager) this.getSystemService(Context.AUDIO_SERVICE);
float streamVolumeCurrent=manager.getStreamVolume(AudioManager.STREAM_MUSIC);
float streamVolumeMax=manager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
float volume=streamVolumeCurrent/streamVolumeMax;
soundPool.play(soundMap.get(<span style="color:#ff0000;">sound</span>), volume, volume, 1, <span style="color:#3333ff;">loop</span>, 0.5f);
}

act_Main.playSound(<span style="color:#ff0000;">1</span>, 0);