import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application( _ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? ) -> Bool { window = UIWindow(frame: UIScreen.main.bounds) let vc = UIViewController() addSwiftUIViewAsChild(swiftUIView: V(), parent: vc.view) vc.view.backgroundColor = .gray window?.rootViewController = vc window?.backgroundColor = UIColor.white window?.makeKeyAndVisible() Bus.processSyncG( MeetupId.shouldFormat, MeetupId.K.meetupIdTextUI.rawValue, MeetupId.K.meetupIdTextApp.rawValue ) return true } }