@State var route : Router = .empty var body: some View { NavigationView{ VStack{ Button("go1") { route = .go1} Button("go2") { route = .go2} Button("go3") { route = .go3} }.navigation(route: $route) }.navigationViewStyle(.stack) }

struct SubView: View { let text: String var body: some View { Text("\(text)") } }

enum Router { case go1 case go2 case go3 case empty @ViewBuilder var builder: some View { switch(self) { case .go1: SubView(text: "go1") case .go2: SubView(text: "go2") case .go3: SubView(text: "go3") default: EmptyView() } } }

struct NavigationModifire : ViewModifier{ @State var isActive : Bool = true @Binding var route : Router func body(content: Content) -> some View { content .background{ NavigationLink(destination : route.builder, isActive: $isActive ){ EmptyView() }.hidden() } .onChange(of: isActive){ if $0 == false { route = .empty } } } } extension View{ @ViewBuilder func navigation(route : Binding<Router>) -> some View{ if route.wrappedValue != .empty{ modifier(NavigationModifire(route: route)) }else { self } } }