android 监听USB连接状态（加声音提示）

1.private final static String ACTION = "android.hardware.usb.action.USB_STATE";

private SoundPool soundPool;

private int times=0;

 

2.IntentFilter filter = new IntentFilter();

filter.addAction(ACTION);

registerReceiver(usBroadcastReceiver, filter);

soundPool= new SoundPool(10,AudioManager.STREAM_SYSTEM,5);

soundPool.load(this,R.raw.aejat,1);

3.

BroadcastReceiver usBroadcastReceiver = new BroadcastReceiver() {

@Override

public void onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

String action = intent.getAction();

if (action.equals(ACTION)) {

boolean connected = intent.getExtras().getBoolean("connected");

if(times==0&&connected)

{

soundPool.play(1, 1, 1, 0, 0, 1);

times=1;

}else if((times == 1) && !connected){

soundPool.play(1, 1, 1, 0, 0, 1);

times = 0; 

}else{

return; // // 插入后面的多次调用，直接返回。

}

}

}

};

4.

android:minSdkVersion="12"