Android keep screen on 方法

有些时候我们需要让手机处于 屏幕唤醒状态(屏幕不熄灭),这个时候我们就需要用到 PowerManager了,代码如下:

@Override
	public void onResume() {

		if(getActivity()!=null){
			PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
			mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
//			mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, TAG);
			 
			// in onResume() call
			mWakeLock.acquire();
		}

		super.onResume();
	}
	
	@Override
	public void onPause() {
		
		if(mWakeLock!=null){
			// in onPause() call
			mWakeLock.release();
		}
		super.onPause();
	}


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