NEW: Learn SwiftUI with my free YouTube video series! >>

How to detect dark mode in iOS

Swift version: 5.0

Paul Hudson    @twostraws   

If you need to take specific action depending on whether your user is running in light mode or dark mode – for example, doing some different drawing – then you should query the userInterfaceStyle of your view controller’s trait collection.

For example, this will print one of two messages when the user taps the screen depending on whether the device is set to light mode or dark mode:

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if traitCollection.userInterfaceStyle == .light {
        print("Light mode")
    } else {
        print("Dark mode")
    }
}

LEARN SWIFTUI FOR FREE I wrote a massive, free SwiftUI tutorial collection, and also have a growing list of free SwiftUI tutorials on YouTube – get started today!

Available from iOS 13.0

Did this solution work for you? Please pass it on!

Other people are reading…

About the Swift Knowledge Base

This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.

MASTER SWIFT NOW
Buy Testing Swift Buy Practical iOS 12 Buy Pro Swift Buy Swift Design Patterns Buy Swift Coding Challenges Buy Server-Side Swift (Vapor Edition) Buy Server-Side Swift (Kitura Edition) Buy Hacking with macOS Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with Swift Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let me know!

Average rating: 4.4/5

Click here to visit the Hacking with Swift store >>