关于PowerManager不起效果

Question

打扰大神了，请教一下。我在broadcastreceiver中定义了wakeLock
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP|PowerManager.FULL_WAKE_LOCK, "test");
wakeLock.acquire();
正常情况下，收到广播以后，屏幕应该亮起。为什么不起作用呢（确实收到了广播并执行了），android 4.3

Answer 1

http://blog.csdn.net/hudashi/article/details/7056091