Navigation to empty view

[ghost]

It's sample app.

If I tap navigation link, MainFeatures's setNavigation called twice. (firstime true, and false)
So Navigation to empty view.
What am I wrong?

and you already know that init(_:isActive:destination:) was deprecated in iOS 16.
any replace this method?

struct MainFeature: ReducerProtocol {
    struct State: Equatable {
        var navigationIsActive = false
        var subState: SubFeature.State?
    }
    
    enum Action: Equatable {
        case setNavigation(Bool)
        case subAction(SubFeature.Action)
    }
    
    var body: some ReducerProtocol<State, Action> {
        Reduce { state, action in
            switch action {
            case .setNavigation(true):
                state.subState = SubFeature.State()
                state.navigationIsActive = true
                
            case .setNavigation(false):
                state.subState = nil
                state.navigationIsActive = false
                
            case .subAction:
                break
            }
            
            return .none
        }
        .ifLet(\.subState, action: /MainFeature.Action.subAction) {
            SubFeature()
        }
    }
}

struct MainView: View {
    var store: StoreOf<MainFeature>
    
    var body: some View {
        WithViewStore(store, observe: { $0 }) { viewStore in
            NavigationStack {
                NavigationLink("count", isActive: viewStore.binding(get: \.navigationIsActive, send: MainFeature.Action.setNavigation)) {
                    IfLetStore(store.scope(state: \.subState, action: MainFeature.Action.subAction)) {
                        SubView(store: $0)
                    }
                }
                .navigationTitle("Main")
            }
        }
    }
}

struct SubFeature: ReducerProtocol {
    struct State: Equatable {
        var count = 0
    }
    
    enum Action: Equatable {
        case decrementButtonTapped
        case incrementButtonTapped
    }
    
    func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
        switch action {
        case .decrementButtonTapped:
            state.count -= 1
            
        case .incrementButtonTapped:
            state.count += 1
        }
        
        return .none
    }
}

struct SubView: View {
    var store: StoreOf<SubFeature>
    
    var body: some View {
        WithViewStore(store, observe: { $0 }) { viewStore in
            HStack {
                Button("-", action: { viewStore.send(.decrementButtonTapped) })
                Text("\(viewStore.count)")
                Button("+", action: { viewStore.send(.incrementButtonTapped) })
            }
        }
    }
}

[ghost]

sorry. solved...
change NavigationStack -> NavigationView.

[mbrandonw]

Hi @jay-linger, sorry didn't see this one before, but you are right. The NavigationLink initializer that takes bindings only works with NavigationView, not NavigationStack.