如何弄清楚您来自哪个导航路径以附加到它？

问：

我有多个使用相同枚举的导航路径，以便能够清除该路径并将用户带回该项目的主选项卡视图。这在我使用时效果很好，但有时我需要等待数据加载才能导航。因此，对于需要先加载数据然后导航的情况，我使用视图模型的 onreceive 。我的问题是，由于我不知道用户是如何获得此视图的，我怎么知道将此视图附加到哪个路径？他们本可以从我的任何选项卡视图到达这里。在示例中，我将其附加到 feedpath，但如果它们从 profilepath 或任何其他路径访问此视图，则不起作用。navigationLink(value: )

class NavigationManager: ObservableObject {    
    @Published var feedPath = [FeedNavigation]()
    @Published var searchPath = [FeedNavigation]()
    @Published var libraryPath = [FeedNavigation]()
    @Published var profilePath = [FeedNavigation]()
}

enum FeedNavigation: Hashable, Codable {
    case profile(User)
    case bookPage(Book)
    case notification
    case chat
    case feedCell(Post)
    case chatView(User)
    case followView(User, Int)
}

struct ProfileView: View {

@EnvironmentObject var navigationManager: NavigationManager

var body: some View {
VStack {
    NavigationLink(value: FeedNavigation.profile(user)) {
        KFImage(URL(string: user.profileImageUrl ?? defaultPhoto))
            .resizable()
            .scaledToFill()
            .frame(width: 40, height: 40)
            .cornerRadius(6)
    }
    Button(action: {
        viewModel.fetchBookForList(book: book)
    }) {
        Text("Load data in view model")
    }
    
    .onReceive(viewModel.$googleBookFetched) { success in
        if success {
            if let book = viewModel.googleBook {
                navigationManager.feedPath.append(FeedNavigation.bookPage(book))
            }
        }
    }
    .navigationDestination(for: FeedNavigation.self) { state in
        switch state {
        case .profile(let user):
            ProfileView(user: user)
        case .bookPage(let book):
            BookPageView(viewModel: BookPageViewModel(book: book))
        case .notification:
            NotificationsView()
        case .chat:
            ConversationsView()
        case .feedCell(let post):
            ScrollView {
                FeedCell(viewModel: FeedCellViewModel(post: post))
            }
        case .chatView(let user):
            ChatView(viewModel: ChatViewModel(user: user))
        case .followView(let user, let followTab):
            FollowListView(viewModel: FollowListViewModel(user: user), followTab: followTab)
        }
    }
}
}
}

TabView(selection: $currentTab) {
    
    NavigationStack(path: $navigationManager.feedPath) {
        FeedView()
    }
    .tag(Tabs.feed)
    
    NavigationStack(path: $navigationManager.searchPath) {
        SearchView()
    }
    .tag(Tabs.search)
    
    NavigationStack(path: $navigationManager.libraryPath) {
        LibraryView()
    }
    .tag(Tabs.inbox)
    
    NavigationStack(path: $navigationManager.profilePath) {
        ProfileView(user: user)
    }
    .tag(Tabs.profile)
    
}