对于setKeepScreenOn / FLAG_KEEP_SCREEN_ON正确的方法 [英] Correct method for setKeepScreenOn / FLAG_KEEP_SCREEN_ON

问题描述

我使用的方法setKeepScreenOn（真），并一直无法弄清楚如何调用这与当前活动（其中有一个内容视图集）。我已经能够得到它在我的按钮，它们总是$在视点P $ psent一条要求它的工作，但这种感觉错了 - 我敢肯定，必须有一个办法来解决这个问题。我想引用当前的重点是这样的：

I am using the method setKeepScreenOn(true) and haven't been able to figure out how to call this in relation to the current Activity (which has a content view set). I've been able to get it to work by calling it on one of my buttons which is always present in the view, but this feels wrong - and I'm sure there must be a way to get around this. I tried referencing the current focus like this:

getCurrentFocus().setKeepScreenOn(true);

但抛出一个NullPointerException异常。也许没有目前的工作重点。 那么，谁能告诉我怎么可以参考我在工作里面的视图类？感谢：）

but that threw a NullPointerException. Maybe there was no current focus. So, can anyone tell me how I can reference the view class which I am working inside? Thanks :)

推荐答案

尝试<一href="http://stackoverflow.com/questions/3949917/how-to-keep-android-device-from-sleeping-while-plugged-in/3951855#3951855">this回答：

getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

getWindow 是活动定义的方法，而不会要求你找到一个查看第一。

getWindow is a method defined for activities, and won't require you to find a View first.

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