How do I support multi-window scenes in UIKit with Swift?

In UIKit, you can support multi-window scenes by utilizing the `UISceneDelegate` and setting up the App Delegate to handle multiple instances of your app’s user interface. This feature is particularly useful for iPad apps, allowing users to open multiple windows of the same app.

To implement multi-window functionality, follow these steps:

  1. Make sure your app supports multiple scenes in the project settings.
  2. Implement the UISceneDelegate methods to manage the life cycle of your app's windows.
  3. Handle state restoration and scene management in your SceneDelegate.

Below is an example of how you might configure your AppDelegate and SceneDelegate for multi-window support:

// AppDelegate.swift func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration { let configuration = UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role) return configuration } // SceneDelegate.swift func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { guard let windowScene = scene as? UIWindowScene else { return } let window = UIWindow(windowScene: windowScene) // Configure the root view controller window.rootViewController = YourViewController() self.window = window window.makeKeyAndVisible() }

multi-window UIKit Swift UISceneDelegate iPad app AppDelegate

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