关闭/ Android的屏幕上 [英] Turn off/on android screen

问题描述

我试图把Android的屏幕关闭，然后再打开，几秒钟后。 关闭的部分作品，与此code：

I am trying to turn the android screen off and then on again, after a few seconds. The "turn off" part works, with this code:

WindowManager.LayoutParams layoutParam = getWindow().getAttributes();
oldBrightness = android.provider.Settings.System.getInt(getContentResolver(), android.provider.Settings.System.SCREEN_BRIGHTNESS)/255f;
layoutParam.screenBrightness = 0; 
layoutParam.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
getWindow().setAttributes(layoutParam);

但后来，当我尝试打开屏幕再次，它不会与此code工作：

But then, when I try to turn the screen on again, it does not work with this code:

WindowManager.LayoutParams layoutParam = getWindow().getAttributes();
layoutParam.screenBrightness = oldBrightness;
layoutParam.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
getWindow().setAttributes(layoutParam);

任何想法来解决？

Any idea to solve that ?

感谢

推荐答案

我觉得你可以试试PowerManager的激活锁定也许会奏效。我米用在我的应用程序这个code。和它的作品很好。 ：）

I think U can try Powermanager WakeLock maybe it will work. I m using this code in my application. and it works well. :)

此外ü需要设置权限清单中。

Also u need to set permission in manifest.

<uses-permission android:name="android.permission.WAKE_LOCK"/> // Manifest Permission

PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); 
                WakeLock wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK
                                                 | PowerManager.ACQUIRE_CAUSES_WAKEUP
                                                 | PowerManager.ON_AFTER_RELEASE, "MyWakeLock");
                wakeLock.acquire();

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