// // AppDelegate.swift // BFFramework // // Created by 287971051@qq.com on 05/28/2021. // Copyright (c) 2021 287971051@qq.com. All rights reserved. // import UIKit @main class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application(_: UIApplication, didFinishLaunchingWithOptions _: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { window = UIWindow(frame: UIScreen.main.bounds) let rootViewController = ViewController() let navigationController = UINavigationController(rootViewController: rootViewController) window?.rootViewController = navigationController window?.makeKeyAndVisible() return true } }