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我的意图是初始化视图控制器并将其设置为窗口 rootViewController，然后将视图控制器作为依赖项传递给 AppCoordinator，应用程序决定如何处理视图控制器（将其替换为入职场景或登录页面，甚至如果用户已经登录，则主屏幕。

问题是每当我这样做时，窗口似乎并没有恢复它的视图控制器，而是一个黑屏。

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    guard let windowScene = (scene as? UIWindowScene) else { return }
    self.window = UIWindow(windowScene: windowScene)
    var viewController = UIViewController()
    self.window?.rootViewController = viewController
    let appCoordinator = AppCoordinator(viewController: viewController)
    appCoordinator.start()
    window?.makeKeyAndVisible()
}

AppCoordinator.swift

import UIKit
import SwiftUI
class AppCoordinator: Coordinator {
    var viewController: UIViewController
    init(viewController: UIViewController) {
        self.viewController = viewController
    }
    func start() {
        let onboardingView = OnboardingView()
        self.viewController = UIHostingController(rootView: onboardingView)
    }
}

如果我绕过 AppCoordinator 并在场景委托中设置所有内容，则屏幕会正确加载：

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
    guard let windowScene = (scene as? UIWindowScene) else { return }
    self.window = UIWindow(windowScene: windowScene)
    var viewController = UIViewController()
    let onboardingView = OnboardingView()
    self.window?.rootViewController = UIHostingController(rootView: onboardingView)
    window?.makeKeyAndVisible()
}

当我将视图控制器作为依赖项传递时，似乎有什么问题？顺便说一句，我不喜欢将窗口作为依赖项传递给被调用的协调器，尽管这可行，但我不喜欢它。

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