自定义UITabBarController的moreNavigationController

class CustomTabBarController: UITabBarController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建更多选项的视图控制器
        let moreViewController = UIViewController()
        moreViewController.title = "更多"
        
        // 将更多选项的视图控制器添加到moreNavigationController中
        let moreNavigationController = UINavigationController(rootViewController: moreViewController)
        self.moreNavigationController = moreNavigationController
    }
}

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // 创建自定义的UITabBarController
    let tabBarController = CustomTabBarController()
    
    // 设置为根视图控制器
    self.window?.rootViewController = tabBarController
    self.window?.makeKeyAndVisible()
    
    return true
}