如何设置在 swift 5 中实例化后可以推送的初始 viewController

Question

I can't push from initial viewController after using this code

self.window = UIWindow(frame: UIScreen.main.bounds)

    let storyboard = UIStoryboard(name: "Main", bundle: nil)

    let initialViewController = storyboard.instantiateViewController(withIdentifier: Identifier)

    self.window?.rootViewController = initialViewController
    self.window?.makeKeyAndVisible()

Answer 1

You have to Embed UIViewController in a UINavigationController. Try this one:

let storyboard = UIStoryboard(name: "Main", bundle: nil)

let initialViewController = storyboard.instantiateViewController(withIdentifier: Identifier)

let navController = UINavigationController(rootViewController: initialViewController)

self.window?.rootViewController = navController
self.window?.makeKeyAndVisible()