欢迎使用CSDN-markdown编辑器

• 生成Window

  例子：

self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];//创建主页面[self loadMainFrame]; //加载window[self.window makeKeyAndVisible];

---

• 创建UINavigationController

UIView *view = [[UIView alloc] init];UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];navigationController.tabBarItem.title = @"...";navigationController.tabBarItem.image = [UIImage imageNamed:@"..."];

---

• 创建UITabBarController

UITabBarController *tabBarController = [[UITabBarController alloc] init];[tabBarController setViewControllers:@[viewController, ...];self.window.rootViewController = tabBarController;