import UIKit
import SwiftUI

struct Details : View {
    var body: some View {
        Text("Details").onAppear {
            print("Appeared")
        }.onDisappear {
            print("Disappear")
        }
    }
}

struct ContentView : View {
    var body: some View {
        NavigationButton(destination: Details()) {
            Text("Push details")
        }
    }
}

class SceneDelegate: UIResponder, UIWindowSceneDelegate {

    var window: UIWindow?
    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        let window = UIWindow(frame: UIScreen.main.bounds)
        let root = UIHostingController(rootView: ContentView())
        window.rootViewController = UINavigationController(rootViewController: root)
        self.window = window
        window.makeKeyAndVisible()
    }
}