Change the root view of UIHostingController in SwiftUI

Question

For a new SwiftUI iOS app, I do the following in the SceneDelegate

if let windowScene = scene as? UIWindowScene {
    let window =          


        

Answer 1

let scene = UIApplication.shared.connectedScenes.first as? UIWindowScene

if let windowScenedelegate = scene?.delegate as? SceneDelegate {
   let window = UIWindow(windowScene: scene!)
   window.rootViewController = UIHostingController(rootView:ContentView())
   windowScenedelegate.window = window
   window.makeKeyAndVisible()
}

By using this we can change the rootView in any button click by implementing the above code.