覆盖电源按钮回调
Is it possible in an acitvity override the callback called when the power button is pressed? My target is to prevent the screen off.
I found this - How to hook into the Power button in Android? -but it seems don't work.
THX
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您可以使用唤醒锁保持屏幕打开：
http://developer.android.com/reference/android/os/PowerManager.html
但你应该小心它，因为它确实会耗尽电池。
You can keep the screen on with a wake lock:
http://developer.android.com/reference/android/os/PowerManager.html
But you should be carefull with it because it really drains the battery.