Adjust the main screen brightness using Swift

ios swift uiscreen
CircuitPro picture CircuitPro · Jun 17, 2014 · Viewed 18.8k times · Source

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?

Answer

stride picture stride · Jun 17, 2014

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)

Related questions

How to get device width and height?

In Objective-C we can get device width and height by using following code : CGRect sizeRect = [UIScreen mainScreen].applicationFrame float width = sizeRect.size.width float height = sizeRect.size.height How can do this in with Swift ?

Read More
How to change Status Bar text color in iOS

My application has a dark background, but in iOS 7 the status bar became transparent. So I can't see anything there, only the green battery indicator in the corner. How can I change the status bar text color to white like …

Read More
How to install CocoaPods?

I referred too many links and tried, but had no success. If any one has an idea then please please share with me. I read cocoa pods documents and many times tried to install but always failed because of the …

Read More