What is the role of the scene method in the SceneDelegate class and when is it called?

The scene(_:willConnectTo:options:) method in the SceneDelegate class is responsible for the initial setup and configuration of the scene (application window) when it is created. It is called by the system when a new scene connects to the app, meaning when a new window or user interface for this scene is created.

Typically, this method involves:

• Setting up the root view controller for the scene's window.
• Initializing and displaying the interface.
• Handling launch parameters for the scene, if any.

Example usage:

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    guard let windowScene = (scene as? UIWindowScene) else { return }
    let window = UIWindow(windowScene: windowScene)
    window.rootViewController = MyRootViewController()
    self.window = window
    window.makeKeyAndVisible()
}

Thus, this method is called when the scene is created and connected, serving as the entry point for setting up the UI of a specific scene.