登录后如何在 SwiftUI 中呈现新视图

Question

I need to know who to present a new view using SwiftUI (following MVVM design pattern).

For example, once the user enters the credentials to login, pressing the "login" button should take them to the home page of the app without being able to return to the login page.

I have been looking at the documentation from Apple, as well as other questions in Stackoverflow, but they all seem to be using navigation views (ie there is a navigation bar at the top which allows the user to return to the previous view).

Below is the code of how I would have accomplished this using UIKit, as well as an image to visually represent what I want to accomplish.

let vc = MainMenuController()

vc.modalPresentationStyle =.fullScreen

self.present(vc, animated: true, completion: nil);

Sample image of desired outcome

Answer 1

this is how i implemented it in my code in ContentView.swift :

@State var loggedIn: Bool = false

var body: some View {
  VStack {
    if loggedIn {
      ShowSomeTabView()
    } else {
      ShowLoginScreen()
    }
  }.onAppear {
    self.checkAuthorized()
  }
}

private func checkAuthorized() {
  if loggedIn() {
    self.loggedIn = true
  }
}