带有UITableViewController

Question

我想将Tabbar添加到我的应用程序中。即使我已经添加了代码，也不显示标签栏。如果无法从AppDelegate添加UITableViewController，该如何添加？我最好做什么？

class MainTableViewController: UITableViewController {

     private func tabbar() {
            let tabBarController = FluidTabBarController()
            tabBarController.tabBar.tintColor = UIColor(red: 0.2431372549, green: 0.4235294118, blue: 1, alpha: 1)
            let viewControllers = [
                ("News", #imageLiteral(resourceName: "output-onlinepngtools")),

                ].map(createSampleViewController)
            tabBarController.setViewControllers(viewControllers, animated: true)

        }

        private func createSampleViewController(title: String, icon: UIImage) -> UIViewController {
            let viewController = UIViewController()
            viewController.view.backgroundColor = #colorLiteral(red: 0.9490196078, green: 0.9529411765, blue: 0.968627451, alpha: 1)
            let item = FluidTabBarItem(title: title, image: icon, tag: 0)
            item.imageColor = #colorLiteral(red: 0.7960784314, green: 0.8078431373, blue: 0.8588235294, alpha: 1)
            viewController.tabBarItem = item
            return viewController
        }

    override func viewDidLoad() {
            super.viewDidLoad()
            tabbar()
    }
 }

Answer 1

我想这就是您要的，只是将ViewController嵌入到UITabBarController

如果要以编程方式执行此操作，则需要创建UITabBarController并添加自定义视图控制器。在您的情况下，FirstViewController将成为UITableViewController

class MyUITabBarController: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let firstViewController = FirstViewController()

        firstViewController.tabBarItem = UITabBarItem(tabBarSystemItem: .search, tag: 0)

        let secondViewController = SecondViewController()

        secondViewController.tabBarItem = UITabBarItem(tabBarSystemItem: .more, tag: 1)

        let tabBarList = [firstViewController, secondViewController]

        viewControllers = tabBarList
    }
}

然后在UITabBarController中实例化您的didFinishLaunchingWithOptions

window?.rootViewController = MyUITabBarController()
window?.makeKeyAndVisible()

工作完成！