CODEWITHSUNDEEP
iosswiftswiftuiuserdefaultsswiftui-tabview
Kally Decan
Kally Decan

Reputation: 11

SwiftUI TabView not updating View

My problem is that TabView is not updating.

I want to log-in and then re-render another view (Profile Screen) instead of (Login Screen) in the same TabItem.

The TabView goes to ProfileScreen only after i kill the app and reopen it.

Here's the TabView code:

import SwiftUI

struct ContentView: View {
    
    @State var userToken: String = UserDefaults.standard.string(forKey: "UserToken") ?? ""
    var body: some View {
        TabView{
            HomeScreen(text: .constant("")).tabItem({ Image(systemName: "house") }).tag(0)
            Text("Cart").tabItem({ Image(systemName: "cart") }).tag(1)
            if userToken.isEmpty {
                LoginScreen().tabItem({ Image(systemName: "person") }).tag(2)
            } 
            else { 
                ProfileScreen().tabItem({ Image(systemName: "person") }).tag(2)
            }
        }
    }
    
}

Things I have tried:

Upvotes: 1

Views: 642

Answers (2)

Anjali Aggarwal
Anjali Aggarwal

Reputation: 629

If you are modifying the value of userToken in any other view, for example may be LoginView, you need a mechanism to inform the content view about that update.

You can consider using LocalNotifications here for sending the update to ContentView so that the view reloads on status update.

Upvotes: 0

Danny B
Danny B

Reputation: 93

If you're using the latest SwiftUI, consider using @AppStorage instead of @State:

@AppStorage("UserToken") var userToken: String = ""

Upvotes: 2

Related Questions