backlight in android

In my android app , I have a menu for backlight options ,and I want that when the user selects one like " during this operation " to have the backlight on during that operation. Could I be be shown a way of accomplish开发者_StackOverflow社区ing this . My problem is the that I don't know how to manipulate the backlight and how to properly arrange this in the code.

Thanks

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Check android.os.PowerManager

You probably should also have WAKE_LOCK permission in manifest

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If you just want to keep the screen awake while on a particular activity, please see Force Screen On