带有路径的 NavigationStack 在 UIHostingController 中无法正常工作

问：

当 s 被包装在 中时，通过 的导航不起作用：即使将值附加到 ，也不会推送相应的视图。UIHostingControllerrootViewNavigationStackNavigationStackpathNavigationPath

奇怪的是，如果用非空初始化，它会正确显示堆栈：NavigationStackpath

（在动画中，带有“首先显示”按钮的屏幕是一个 ，它以模式方式显示一个包装在（带有“下一步打开”按钮的视图）中的 SwiftUI 视图。“打开下一个”修改视图，尝试推送另一个带有“下一步”文本标签的 SwiftUI 视图。UIViewControllerUIHostingControllerpath

这是一个最小的可重现示例，去除了所有不相关的代码：

class HomeViewController: UIViewController {

  class NavigationModel: ObservableObject {

    enum Path {
      case second
    }

    @Published var navigationPath = NavigationPath()

  }

  @ObservedObject private var navigationModel = NavigationModel()

  override func viewDidLoad() {
    super.viewDidLoad()

    view.backgroundColor = .white

    let button = UIButton(type: .system)
    button.translatesAutoresizingMaskIntoConstraints = false
    button.setTitle("Show first", for: .normal)
    button.addTarget(self, action: #selector(presentSecondViewController), for: .touchUpInside)

    view.addSubview(button)
    NSLayoutConstraint.activate([button.centerXAnchor.constraint(equalTo: view.centerXAnchor), button.centerYAnchor.constraint(equalTo: view.centerYAnchor)])
  }

  @objc func presentSecondViewController() {
    let view = NavigationStack(path: $navigationModel.navigationPath) {
      Button("Open next") { self.navigationModel.navigationPath.append(NavigationModel.Path.second) }
        .navigationDestination(for: NavigationModel.Path.self) {
          switch $0 {
            case .second:
              SecondView()
          }
        }
    }

    let vc = UIHostingController(rootView: view)
    present(vc, animated: true)
  }

}

struct SecondView: View {
  var body: some View {
    Text("Next")
  }
}

但是，同样的方法在纯 SwiftUI 中也有效：如果根视图以模式方式呈现另一个包装在 中的视图，则对相应视图的所有修改都会导致预期行为：NavigationStackpath

下面是工作示例的代码：

@main struct SwiftUIPlaygroundApp: App {

  class NavigationModel: ObservableObject {

    enum Path {
      case second
    }

    @Published var navigationPath = NavigationPath()

  }

  var body: some Scene {
    WindowGroup {
      Button("Show first") { firstShown = true }
        .sheet(isPresented: $firstShown) {
          NavigationStack(path: $navigationModel.navigationPath) {
            Button("Open next") { navigationModel.navigationPath.append(NavigationModel.Path.second) }
              .navigationDestination(for: NavigationModel.Path.self) {
                switch $0 {
                  case .second:
                    SecondView()
                }
              }
          }
        }
    }
  }
  @State var firstShown = false
  @ObservedObject var navigationModel = NavigationModel()

}

struct SecondView: View {
  var body: some View {
    Text("Next")
  }
}

我怎样才能让它在里面正常工作？UIHostingController

任何指导都是值得赞赏的。