Android 點亮屏幕

	private void AcquireWakeLock() {
		PowerManager pm = (PowerManager)mApplicationContext.getSystemService(Context.POWER_SERVICE);
		
		WakeLock m_wakeObj = (WakeLock)pm.newWakeLock(PowerManager.FULL_WAKE_LOCK
                | PowerManager.ACQUIRE_CAUSES_WAKEUP
                | PowerManager.ON_AFTER_RELEASE, "");
		
		// m_wakeObj.acquire();
		
		//點亮屏幕15秒鐘
		m_wakeObj.acquire(1000 * 5);
		m_wakeObj.release();//釋放資源
		
	}