ARK-OS/arkos/arkrt/ark.ui.basic/Sources/SwiftCrossUI.docc/Backends/UIKitBackend.md

UIKitBackend

SwiftCrossUI's native iOS and tvOS backend built on top of UIKit.

@Metadata {

@TitleHeading("Backend")
@Available(iOS, introduced: "13")
@Available(tvOS, introduced: "13")
@Available(visionOS, introduced: "1")

}

Overview

UIKitBackend is the default backend on iOS, tvOS, and visionOS, supports most current SwiftCrossUI features on iOS at least, and targets iOS/tvOS 13+ and all versions of visionOS. It doesn't have any system dependencies other than a few system frameworks included on all iOS/tvOS/visionOS devices.

Usage

@TabNavigator {

@Tab("Package.swift") {
    ```swift
    // ...
    let package = Package(
        // ...
        targets: [
            // ...
            .executableTarget(
                name: "YourApp",
                dependencies: [
                    .product(name: "SwiftCrossUI", package: "swift-cross-ui"),
                    .product(name: "UIKitBackend", package: "swift-cross-ui"),
                ]
            ),
            // ...
        ],
        // ...
    )
    ```
}
@Tab("YourApp.swift") {
    ```swift
    import SwiftCrossUI
    import UIKitBackend

    @main
    struct YourApp: App {
        // You can explicitly initialize your app's chosen backend if you desire.
        // This happens automatically when you import any of the built-in backends.
        //
        // var backend = UIKitBackend()
        //
        // You can register a custom UIApplicationDelegate by subclassing
        // UIKitBackend.ApplicationDelegate and providing it to UIKitBackend
        // via the alternate initializer.
        //
        // var backend = UIKitBackend(appDelegateClass: YourAppDelegate.self)

        var body: some Scene {
            WindowGroup {
                Text("Hello, World!")
                    .padding()
            }
        }
    }
    ```
}

}