Switch between dark and light mode (Swift)

Question

How can I switch between dark and light mode in the complete app when I press a button? I'm using Swift 5 and UIKit in Xcode 12

There are lots of articles available on google. Just do some R.&D. — Raja Kishan, Jun 30 '21 at 15:35
By adding dark mode. YOu need this https://stackoverflow.com/q/58906624/14733292 — Raja Kishan, Jun 30 '21 at 15:47
Duplicate of [Is it possible to opt-out of dark mode on iOS 13?](https://stackoverflow.com/q/56537855/2227743) Despite the specific title, all info is there. — Eric Aya, Jul 01 '21 at 11:42

score 4 · Answer 1 · answered Jun 30 '21 at 16:01

4

Try this:

@IBAction func changeMode(_: Any) {
    let window = UIApplication.shared.windows[0]
    var mode = window.overrideUserInterfaceStyle
    mode = mode == .dark ? .light : .dark
}

answered Jun 30 '21 at 16:01

disepulv

262
1
5

score 3 · Accepted Answer · answered Jun 30 '21 at 16:10

Thanks to your help, I have now managed to do it.

@IBAction func system(_ sender: Any) {
        let window = UIApplication.shared.keyWindow
        window?.overrideUserInterfaceStyle = .unspecified
    }
    
    @IBAction func dunkel(_ sender: Any) {
        let window = UIApplication.shared.keyWindow
        window?.overrideUserInterfaceStyle = .dark
    }
    
    @IBAction func hell(_ sender: Any) {
        let window = UIApplication.shared.keyWindow
        window?.overrideUserInterfaceStyle = .light
    }

is this work for launch screen? – Saurabh Sharma Aug 04 '23 at 11:15 — Saurabh Sharma, Aug 04 '23 at 11:15

Switch between dark and light mode (Swift)

2 Answers2