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I am making a clock app and I wanted to know how can I check what the current brightness level is set to and how can i adjust brightness in my application in xcode 4 with a UISlider instead of telling the user to go to their iphone/ipad setting app and adjust the brightness there? I can’t find any code/api for it.
I have seen quite a few clock apps in appstore where the user can adjust the brightness of the display just by moving the finger up or down.
You’re looking for the brightness property of UIScreen.
Sample code:
Available in iOS 5.0 and later.