ios - How to push a new root view using SwiftUI without NavigationLink?

Question

I have a login screen. After user fill up credential, I want to verify it then start a new root view so user won't be able to navigate back to the login view. I currently have

Button(action: { 
// launch new root view here 
}, label: {Text("Login")}).padding()

Majority of answers I found online are using navigation link which I don't want to. Some other answers suggest to utilize AppDelegate by UIApplication.shared.delegate which isn't working for me because I have SceneDelegate

Answer 1

Here is possible alternate approach of how to replace root view completely... using notifications

class SceneDelegate: UIResponder, UIWindowSceneDelegate {

    let loginRootViewNotification = 
         NSNotification.Name("loginRootViewNotification") // declare notification
    private var observer: Any?               // ... and observer


    ...
    // in place of window creation ...
        let window = UIWindow(windowScene: windowScene)
        window.rootViewController = UIHostingController(rootView: contentView)

        observer = NotificationCenter.default.addObserver(forName: loginRootViewNotification, object: nil, queue: nil, using: { _ in
            let anotherRootView = AnotherRootView() 
            // create another view on notification and replace
            window.rootViewController = UIHostingController(rootView: anotherRootView)
        })

in your desired place post needed notification

Button(action: { 
// launch new root view here 
   NotificationCenter.default.post(loginRootViewNotification)
}, label: {Text("Login")}).padding()