ios – Toolbar Dismiss Button Doesn’t Re-appear when Switching from one TabView to One other

I’m model new to SwiftUI and have made some good progress on my iOS app however I’ve come throughout a problem that I can not get previous. The app is organized right into a TabView that comprises two views – “SetupView” and “ColorsView”. The view the place this challenge resides is the SetupView.

SetupView is the place the consumer enters some settings for the app. It consists of a NavigationStack, which comprises a Type, which comprises a bit, which comprises a TextField to carry the consumer’s zip code. There are different sections within the Type which aren’t textual content so there isn’t a challenge with these and I’ve omitted them from the code beneath for readability. I added the .keyboardType(.numberPad) modifier to the TextField since that is asking for a Zip Code. I additionally discovered I wanted to trace FocusState with the intention to add a “Dismiss” button to the keyboard so the consumer can eliminate it after getting into a Zip Code. This all works high-quality inside SetupView itself. However, after I tab over to ColorsView after which tab again to the Setup view and click on on the TextField, the keyboard comes up however the “Dismiss” button is lacking. How do I get the Dismiss button to indicate up each time I swap between Tabs and faucet on the Zip code TextField? The related code is beneath. Notice that the keyboard doesn’t present up within the Canvas (Preview), however it does present up on the simulator or in case you set up the app on an iPhone.

struct SetupView: View {
    
    @State var zipCode: String = ""
    @State var zipCodesOnly : [Int] = [33301, 90210, 33028, 90001]
    @State non-public var invalidZip = false
    @FocusState non-public var focusedField : FormField?
    enum FormField {
        case zip
    }
    
    var physique: some View {
        NavigationStack {
            Type {
                Part(header: Textual content("Location")) {
                    TextField("Zip Code", textual content: $zipCode)
                        .keyboardType(.numberPad)
                        .targeted($focusedField, equals: .zip)
                    Button("Save", motion: {
                        if zipCodesOnly.comprises(Int(zipCode) ?? 999989) {
                            invalidZip = false
                        } else {
                            invalidZip = true
                            zipCode = ""
                        }
                    })
                    .buttonStyle(.borderedProminent)
                    .tint(.accentColor)
                    .alert(isPresented: $invalidZip, content material: {
                        Alert(title: Textual content("Invalid Zip Code"),
                              message: Textual content("Please enter a sound Zip Code"),
                              dismissButton: .default(Textual content("Okay"), motion: {
                        }))
                    })
                }
            }
            .navigationTitle("Settings")
            .toolbar {
                ToolbarItemGroup(placement: .keyboard) {
                    Button("Dismiss") {. 
                        focusedField = nil
//keyboard with "Dismiss" comes up each time I faucet on the Textfield whereas I am in SetupView
//However I lose the "Dismiss" button after I Tab over to my different Tabview and are available again to this one!
                    }
                }
            }
        }
    }
}

A pattern Tab construction that can be utilized with that is beneath:

struct TempTabView: View {
    var physique: some View {
        TabView {
            SetupView()
                .tabItem {
                    Picture(systemName: "gearshape")
                    Textual content("Setup")
                }
            ColorsView()
                .tabItem {
                    Picture(systemName: "paintpalette")
                    Textual content("Colours")
                }
        }
    }
}

#Preview {
    TempTabView()
}

And a pattern ColorsView beneath:

struct ColorsView: View {
    var physique: some View {
        Textual content("Hiya, World!")
    }
}

#Preview {
    ColorsView()
}

I am utilizing Xcode 15.0 with goal iOS set to iOS 17.0