In UIKit, UINavigationItem has this useful property called backButtonDisplayMode that can be used to configure the behavior of the back button.

I was just wondering if SwiftUI has something similar? Alternatively, what is the best way to achieve this in SwiftUI? I would prefer to not have to use a custom back button, and really just want the back button to say "Back" instead of the previous view's navigation title.

CodePudding user response：

You have to do a custom button because SwiftUI is declarative, not imperative, but they are pretty simple.

struct CustomBackButton: View {
    
    @Environment(\.presentationMode) var presentationMode
    
    var body: some View {
        Text("Hello, World!")
            .navigationBarBackButtonHidden(true)
            .toolbar {
                ToolbarItem(placement: .navigationBarLeading) {
                    Button(action: {
                        self.presentationMode.wrappedValue.dismiss()
                    }) {
                        HStack {
                            Image(systemName: "chevron.left")
                            Text("Back")
                        }
                    }
                }
            }
    }
}