Adjust the main screen brightness using Swift

Question

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?

score 59 · Accepted Answer · edited Jan 09 '19 at 07:27

59

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

UIScreen.main.brightness = CGFloat(0.5)

edited Jan 09 '19 at 07:27

Cœur

answered Jun 17 '14 at 13:14

stride

score 28 · Answer 2 · edited Jan 09 '19 at 07:31

28

Actually in Swift 3 mainScreen was replaced with main, so proper code is:

UIScreen.main.brightness = CGFloat(0.5)

edited Jan 09 '19 at 07:31

Cœur

answered Sep 20 '16 at 11:59

Mykyta Savchuk

2 Answers2