swift - AppDelegate l WalkthroughView

Question

ページに追加できますが、appDelegate に追加するにはどうすればWalkthroughViewよいですか?UIViewControllerWalkthroughView

 override open func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    let defaults = UserDefaults.standard
    let hasViewedWalkthrough = defaults.bool(forKey: "hasViewedWalkthrough")

    if !hasViewedWalkthrough {
       //
        print("succes")
        //
       if let pageVC = storyboard?.instantiateViewController(withIdentifier: "WalkthroughViewController") as? WalkthroughViewController {
           present(pageVC, animated: true, completion: nil)
        }
   }
}