我试图找出如何关闭屏幕从服务中。我已经读过this但我没有意识到如何从服务中做到这一点。我真的不希望处理唤醒锁，因为只要在屏幕熄灭，我真的不关心通过java code转回来。我只需要转动屏幕关闭一个时间的方法，我已经搜查永远在这。

I am trying to figure out how to turn off the screen from within a service. I have already read this but I am failing to realize how to do this from within a service. I don't really want to deal with wake locks because as soon as the screen goes off, I don't really care about turning it back via java code. I just need a one time method for turning the screen off and I have searched forever on this.

推荐答案

我看到两个选项：

（1）创建一个虚拟活动，并用它通过 getWindow（）; 方法。然后，你会使用意图从调用屏幕关闭你的服务。

(1) Create a dummy Activity and use it to get a Window object through the getWindow(); method. Then you would use an Intent to call the screen off from your Service.

（2）使用 IHardwareService.Stub 。不属于SDK的，但有没有在这个博客帖子一个解决办法： HTTP： //www.tutorialforandroid.com/2009/01/changing-screen-brightness.html

(2) Use IHardwareService.Stub. Not part of the SDK, but there's a workaround in this blog post: http://www.tutorialforandroid.com/2009/01/changing-screen-brightness.html

BTW：我会强烈建议第一个选项。你永远不知道什么时候一个类，不是SDK可能会改变的一部分。