iOS 13: Swift - 'Set application root view controller programmatically' does not work

Question

I have following code in my AppDelegate.swift to setup root view controller for an iOS application. But it does not work. It follows Target structure (defined under General

Answer 1

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {

    guard let windowScene = (scene as? UIWindowScene) else { return }
    self.window = UIWindow(windowScene: windowScene)               
      self.window?.makeKeyAndVisible()

    let layout = UICollectionViewFlowLayout()
    let swipingController = SwipingController(collectionViewLayout: layout)
          self.window?.rootViewController = swipingController       

}