Question

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由于某种原因,与经常开除相比,清理航行舱位会造成意外估计。它清除了面前的屏幕实际上消失了。如果不清除屏幕,你怎么能够重新扎根?

https://imgur.com/a/GYhtmCK

struct ContentView: View {
    @State var navigationPath: NavigationPath = NavigationPath()
    
    var body: some View {
        NavigationStack(path: $navigationPath) {
            ZStack {
                Color.red
                NavigationLink(value: 0) {
                    Text("test")
                }
            }
            .navigationDestination(for: Int.self) { _ in
                SubView(navigationPath: $navigationPath)
            }
        }
    }
}

struct SubView: View {
    @Binding var navigationPath: NavigationPath
    
    var body: some View {
        ZStack {
            Color.green
            Button {
                navigationPath = NavigationPath()
            } label: {
                Text("back")
            }

        }
    }
}

Answer 1

How can you pop back to root normally without the clearing of the screen? You could try this alternative approach, using dismiss() to go back, works for me.

struct ContentView: View {
    @State var navigationPath: NavigationPath = NavigationPath()
    
    var body: some View {
        NavigationStack(path: $navigationPath) {
            ZStack {
                Color.red
                NavigationLink(value: 0) {
                    Text("test")
                }
            }
            .navigationDestination(for: Int.self) { val in
                SubView() // <-- here
            }
        }
    }
}

struct SubView: View {
    @Environment(.dismiss) var dismiss  // <-- here
    
    var body: some View {
        ZStack {
            Color.green
            Button {
                dismiss() // <-- here
            } label: {
                Text("back")
            }
        }
    }
}

友情链接