You can try modifying your code where method “didFinishLaunchingWithOptions:” starts everything in background.application(_:didFinishLaunchingWithOptions:)This method is used to tell the delegate that the launch process is almost done and the app is almost ready to run.Method declaration:optional func application(_ application: UIApplication,didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]?