Show a new View from Button press Swift UI

Question

I would like to be able to show a new view when a button is pressed on one of my views.

From the tutorials I have looked at and other answered questions here it seem

Answer 1

For simple example you can use something like below

import SwiftUI

struct ExampleFlag : View {
    @State var flag = true
    var body: some View {
        ZStack {
            if flag {
                ExampleView().tapAction {
                    self.flag.toggle()
                }
            } else {
                OtherExampleView().tapAction {
                    self.flag.toggle()
                }
            }
        }
    }
}
struct ExampleView: View {
     var body: some View {
        Text("some text")
    }
}
struct OtherExampleView: View {
    var body: some View {
        Text("other text")
    }
}

but if you want to present more view this way looks nasty

You can use stack to control view state without NavigationView

For Example:

    class NavigationStack: BindableObject {
        let didChange = PassthroughSubject()

        var list: [AuthState] = []

        public func push(state: AuthState) {
            list.append(state)
            didChange.send()
        }
        public func pop() {
            list.removeLast()
            didChange.send()
        }
    }

    enum AuthState {
        case mainScreenState
        case userNameScreen
        case logginScreen
        case emailScreen
        case passwordScreen
    }
    struct NavigationRoot : View {
        @EnvironmentObject var state: NavigationStack
        @State private var aligment = Alignment.leading

        fileprivate func CurrentView() -> some View {
            switch state.list.last {
            case .mainScreenState:
                return AnyView(GalleryState())
            case .none:
                return AnyView(LoginScreen().environmentObject(state))
            default:
                return AnyView(AuthenticationView().environmentObject(state))
            }
        }
        var body: some View {
        GeometryReader { geometry in
            self.CurrentView()
                .background(Image("background")
                    .animation(.fluidSpring())
                    .edgesIgnoringSafeArea(.all)
                    .frame(width: geometry.size.width, height: geometry.size.height,
                           alignment: self.aligment))
                    .edgesIgnoringSafeArea(.all)
                    .onAppear {
                        withAnimation() {
                            switch self.state.list.last {
                            case .none:
                                    self.aligment = Alignment.leading
                            case .passwordScreen:
                                    self.aligment = Alignment.trailing
                            default:
                                    self.aligment = Alignment.center
                            }
                        }
                    }
                }
            .background(Color.black)
        }

}

struct ExampleOfAddingNewView: View {
    @EnvironmentObject var state: NavigationStack
    var body: some View {
            VStack {
                Button(action:{ self.state.push(state: .emailScreen) }){
                Text("Tap me")
            }

        }
    }
}


    struct ExampleOfRemovingView: View {
        @EnvironmentObject var state: NavigationStack
        var body: some View {
            VStack {
                Button(action:{ self.state.pop() }){
                    Text("Tap me")
                }
            }
        }
    }

In my opinion this bad way, but navigation in SwiftUI much worse