我如何设置可在实例化后迅速5推送的初始viewController

Question

使用此代码后，我无法从初始viewController推送

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

您必须将UIViewController嵌入UINavigationController中。试试这个：