swift - 创建一个没有后退按钮的 NavigationLink SwiftUI

Question

我试图在 SomeView1() 中链接一个按钮操作以导航到 someView2() 而无需在屏幕顶部设置后退按钮。相反，我想在 SomeView2() 中添加另一个按钮，它将导航回 SomeView1()。这在 SwiftUI 中可能吗？

SomeView1()

struct SomeView1: View {
    var body: some View {
        NavigationView {
            VStack {
                //...view's content

                NavigationLink(destination: SomeView2()) {
                    Text("go to SomeView2")
                }
                Spacer()
            }
        }
    }
}

SomeView2()

struct SomeView2: View {
    var body: some View {
        NavigationView {
            VStack {
                //...view's content

                NavigationLink(destination: SomeView1()) {
                    Text("go to SomeView1")
                }
                Spacer()
            }
        }
    }
}

这是它的样子:

Answer 1

在这里获得所需内容的正确方法是使用 presentationMode 环境变量:

import SwiftUI

struct View2: View {
    @Environment(\.presentationMode) var presentationMode: Binding<PresentationMode>

    var body: some View {
        VStack {
            Button(action: {
                self.presentationMode.wrappedValue.dismiss()
            }) {
                Text("POP")
            }
        }
        .navigationBarTitle("")
        .navigationBarBackButtonHidden(true)
        .navigationBarHidden(true)
    }
}

struct ContentView: View {
    var body: some View {
        NavigationView {
            NavigationLink(destination: View2()) {
                Text("PUSH")
                    .navigationBarTitle("")
                    .navigationBarHidden(true)
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}