ios - 在 xib View 文件之间导航

Question

我正在做一个项目，该项目没有 Storyboard ，它只有一个带有自己的类的 xib 文件的 View ，问题是:如何在这些 xib View 之间导航？
还是可以将它们嵌入导航 Controller 中？
我尝试了这段代码，但什么也没发生？

let NC = UINavigationController()

 @IBAction func showUserProfile(_ sender: Any) {
    
    print("show Profile")
    let vc = UserProfile(
    nibName: "UserProfile",
    bundle: nil)
    NC.pushViewController(vc,
    animated: true )
}

这是在应用程序委托(delegate)中

 let mainView = BlockListViewController(nibName: "BlockListViewController", bundle: nil)
    window?.addSubview(mainView)
    let navigationControll = UINavigationController(rootViewController: mainView)
    self.window?.rootViewController = navigationControll
    self.window?.makeKeyAndVisible()

我尝试在事件发生时使用它进行导航

    self.navigationController?.pushViewController(UserProfile(), animated: true)

Answer 1

您无法在 UIView 的实例之间导航
根据苹果UINavigationController

A container view controller that defines a stack-based scheme for navigating hierarchical content.

A navigation controller is a container view controller that managesone or more child view controllers

所以基本上是一堆 UIViewController , 定义为 [UIViewController]在 documentation 中了解更多信息
您可以做的是添加每个 UIView在 UIViewController并通过它简单地导航。
根据您的评论，您可以将它们预定义到 VC 实例中并创建一个 UINavigationController使用您的初始值，然后只需推送到所需的 UIViewController来自 UINavigationController 评论更新
正如我从您在主视图中的评论中得到的那样，您已经定义了 UINavigationController只需替换 NC.pushViewController(vc,animated: true )与 self.navigationController.pushViewController(vc, animated: true )问题是您正在创建新的 UINavigationController虽然您已经嵌入了第一个
评论更新:
如果您使用带有场景委托(delegate)的 iOS 13+，请在 willConnectTo 内使用此功能

   guard let scene = (scene as? UIWindowScene) else { return }
    // Instantiate UIWindow with scene
    let window = UIWindow(windowScene: scene)
    // Assign window to SceneDelegate window property
    self.window = window
    // Set initial view controller from Main storyboard as root view controller of UIWindow
    let mainView = BlockListViewController(nibName: "BlockListViewController", bundle: nil)
    let navigationControll = UINavigationController(rootViewController: mainView)

    self.window?.rootViewController = navigationControll
    // Present window to screen
    self.window?.makeKeyAndVisible()

并调用 self.navigationController.push像这样

@IBAction func didTap(_ sender: UIButton)  {
        let secondView = secondVC(nibName: "secondVC", bundle: nil)
        self.navigationController?.pushViewController(secondView, animated: true)
    }