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FluentDarkModeKit was designed and developed before Apple‘s official dark mode release. It provides a mechanism to support dark mode for apps on iOS 11+ (including iOS 13).

• Dark Mode support for iOS 11+
• Dynamic theme change within the app without restart
• Simple API design with minimal changes to your existing code

• iOS 11.0+
• Xcode 11.0+
• Swift 5+

To integrate FluentDarkModeKit into your Xcode project using Carthage, specify it in your Cartfile:

github "microsoft/FluentDarkModeKit"

Click "Files -> Swift Package Manager -> Add Package Dependency..." in Xcode's menu and search "https://github.com/microsoft/FluentDarkModeKit"

To integrate FluentDarkModeKit into your Xcode project using CocoaPods, specify it in your Podfile:

pod "FluentDarkModeKit"

To use FluentDarkModeKit, provide a pair of colors or images instead of a single value. Simply replace existing colors/images with a pair of light and dark colors/images.

Swift

extension UIColor {
    init(_: DMNamespace, light: UIColor, dark: UIColor)
}

let color = UIColor(.dm, light: .white, dark: .black)

Objective-C

@interface UIColor (FluentDarkModeKit)
- (UIColor *)dm_colorWithLightColor:(UIColor *)lightColor darkColor:(UIColor *)darkColor;
@end

UIColor *color = [UIColor dm_colorWithLightColor:UIColor.whiteColor darkColor:UIColor.blackColor];

Swift

extension UIImage {
    init(_: DMNamespace, light: UIImage, dark: UIImage)
}

let lightImage = UIImage(named: "Light")!
let darkImage = UIImage(named: "Dark")!
let image = UIImage(.dm, light: lightImage, dark: darkImage)

Objective-C

@interface UIImage (FluentDarkModeKit)
- (UIImage *)dm_imageWithLightImage:(UIImage *)lightImage darkImage:(UIImage *)darkImage;
@end

For more complex scenarios, FluentDarkModeKit is similar to what Apple does in iOS 13 (some slight differences). It maintains a global DMTraitCollection which can be accessed through DMTraitCollection.current during custom layout.

For more information on cases you should handle during layout, please refer to Apple's documentation.

FluentDarkModeKit will notify views or view controllers in the current window when the theme changes by calling the following delegate method.

Swift

protocol DMTraitEnvironment: NSObjectProtocol {
    func dmTraitCollectionDidChange(_ previousTraitCollection: DMTraitCollection?)
}

Objective-C

@protocol DMTraitEnvironment <NSObject>

- (void)dmTraitCollectionDidChange:(nullable DMTraitCollection *)previousTraitCollection;

@end

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.

Copyright (c) Microsoft Corporation. All rights reserved.

Licensed under the MIT license.