Dim screen while user inactive

Question

I have an app which is used for lets say 4 hours, but only every 5 minutes a user needs to make an input or read the screen. Putting the phone to sleep and locking the scre

Answer 1

Even a dim screen consumes a significant amount of battery over a time like 4 hours. You really don't want to keep the screen on like that. I think you would be better off using FLAG_SHOW_WHEN_LOCKED, allowing the screen to turn off, but for the user to immediately go in to your app when turning it back on without having to first go through the lock screen.

If you really need to keep the screen dim, you can use a SCREEN_DIM_WAKE_LOCK. If you want more control, you could also try directly setting the screen brightness with WindowManager.LayoutParams.screenBrightness.