iosswiftuiscreen

Adjust the main screen brightness using Swift

I would like to adjust the iPhone's main screen brightness in code using Swift.

I know in Objective-C it can be done by: 

[[UIScreen mainScreen] setBrightness:0.5];

How do I do this in Swift?

Solution

  • https://developer.apple.com/documentation/uikit/uiscreen/1617830-brightness

    From the docs the proper answer for Swift 3+ is:

    UIScreen.main.brightness = CGFloat(0.5)