ios, Xocde, swift, Open View from storyboard programatically on AppDelegate

open view storyboard

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Assume there are firstView and SecondView in the Main.storyboard 
        // open SecondView
        window = UIWindow(frame: UIScreen.main.bounds)
        let storyboad: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
        let newViewController = storyboad.instantiateViewController(withIdentifier: "SecondView") as UIViewController
        window!.rootViewController = newViewController
        window!.makeKeyAndVisible()
        return true
    }