利用广播监听手机解锁和锁屏的操作

##利用广播监听手机解锁、锁屏和亮屏的操作

public class MainActivity extends Activity {
    BroadcastReceiver receiver;
private static String TAG = "MyLog";
private ScreenListener MyListener;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TestBroadReceiver();
        IntentFilter filter = new IntentFilter();//定义一个意图拦截
        filter.addAction(Intent.ACTION_SCREEN_ON);//添加要拦截的动作
        filter.addAction(Intent.ACTION_SCREEN_OFF);
        filter.addAction(Intent.ACTION_USER_PRESENT);
        registerReceiver(receiver, filter);//注册广播
    }

public void TestBroadReceiver() {
        receiver = new BroadcastReceiver() {

@Override
public void onReceive(Context context, Intent intent) {
                String action = intent.getAction();
// TODO Auto-generated method stub
if (Intent.ACTION_SCREEN_ON.equals(action)) { // 开屏 
//拦截事件后可在此操作 
                    Log.i(TAG, "开屏");
                } else if (Intent.ACTION_SCREEN_OFF.equals(action)) { // 锁屏 
//拦截事件后可在此操作 
                    Log.i(TAG, "锁屏");
                } else if (Intent.ACTION_USER_PRESENT.equals(action)) { // 解锁
//拦截事件后可在此操作 
                    Log.i(TAG, "解锁");
                }
            }
        };

    }
@Override
protected void onDestroy() {
super.onDestroy();
        unregisterReceiver(receiver);//销毁页面时注销广播
    }
}