TabView 在切换选项卡时重置导航堆栈

我有一个简单的 TabView：

TabView {
    NavigationView {
        VStack {
            NavigationLink(destination: Text("Detail")) {
                Text("Go to detail")
            }
        }
    }
        .tabItem { Text("First") }
        .tag(0)
    Text("Second View")
        .tabItem { Text("Second") }
        .tag(1)
}

当我转到选项卡 1 上的详细信息视图，切换到选项卡 2，然后切换回选项卡 1 时，我会假设返回到详细信息视图（iOS 中随处可见的基本用户体验）。相反，它会重置为选项卡 1 的根视图。

由于 SwiftUI 似乎不支持开箱即用，我该如何解决这个问题？

这里不太明显的解决方案是实际上不使用 SwiftUI。为了获得 UIKit 行为，我包装了一个 UIKitUITabBarController在 SwiftUI 中UIViewControllerRepresentable就像这个例子一样：https://developer.apple.com/tutorials/swiftui/interface-with-uikit https://developer.apple.com/tutorials/swiftui/interfacing-with-uikit.

我在这里展示了一个基本的实现。完整的最新实现位于 github 上：https://gist.github.com/Amzd/2eb5b941865e8c5cccf149e6e07c8810 https://gist.github.com/Amzd/2eb5b941865e8c5cccf149e6e07c8810

将 UIKit UITabBarController 包装在 SwiftUI 视图中：

struct UIKitTabView: View {
    var viewControllers: [UIHostingController<AnyView>]

    init(_ tabs: [Tab]) {
        self.viewControllers = tabs.map {
            let host = UIHostingController(rootView: $0.view)
            host.tabBarItem = $0.barItem
            return host
        }
    }

    var body: some View {
        TabBarController(controllers: viewControllers)
            .edgesIgnoringSafeArea(.all)
    }

    struct Tab {
        var view: AnyView
        var barItem: UITabBarItem

        init<V: View>(view: V, barItem: UITabBarItem) {
            self.view = AnyView(view)
            self.barItem = barItem
        }
    }
}

struct TabBarController: UIViewControllerRepresentable {
    var controllers: [UIViewController]

    func makeUIViewController(context: Context) -> UITabBarController {
        let tabBarController = UITabBarController()
        tabBarController.viewControllers = controllers
        return tabBarController
    }

    func updateUIViewController(_ uiViewController: UITabBarController, context: Context) {

    }
}

用法示例：

struct ExampleView: View {
    @State var text: String = ""

    var body: some View {
        UIKitTabView([
            UIKitTabView.Tab(
                view: NavView(), 
                barItem: UITabBarItem(title: "First", image: nil, selectedImage: nil)
            ),
            UIKitTabView.Tab(
                view: Text("Second View"), 
                barItem: UITabBarItem(title: "Second", image: nil, selectedImage: nil)
            )
        ])
    }
}

struct NavView: View {
    var body: some View {
        NavigationView {
            VStack {
                NavigationLink(destination: Text("This page stays when you switch back and forth between tabs (as expected on iOS)")) {
                    Text("Go to detail")
                }
            }
        }
    }
}