Keeping Android Screen bright during Game

Question

I have a game that uses the accelerometer to move a guy back and forth on the screen. After a few seconds the screen goes dim. Is there any way to keep it alive and bright during the game activity?

Answer 1

With the PowerManager API, you can acquire and release locks to:

• prevent your device to pause;
• prevent your device to dim;
• force brightness
• ...

Warning you must add one permission:

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

Answer 2

I try like that in oncreate on activity start

getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
            WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

Answer 3

This blog post covers the three ways of achieving this:

http://blog.blundell-apps.com/tut-keep-screen-onawake-3-possible-ways/

Basically, you either:

• tell android through your layout xml that you want to keep the screen alive
• tell android through a call to window manager to keep the screen on during oncreate
• use wakelocks to force the device to use full power at all time (and drain batteries)