如何从情节提要“Main”中修复，但没有获得 UITableView。代码

Question

我对 iOS 编程非常陌生。 我正在从教程中运行一个简单的应用程序，当我尝试在模拟器（iPhone 11）上运行它时，它给了我以下错误消息

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UITableViewController loadView] instantiated view controller with identifier "UIViewController-BYZ-38-t0r" from storyboard "Main", but didn't get a UITableView.'

AppDeligate

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        window = UIWindow(frame: UIScreen.main.bounds)
        window?.makeKeyAndVisible()
        let viewController = ViewController()
        window?.rootViewController = UINavigationController(rootViewController: viewController)

        return true
    }

    // MARK: UISceneSession Lifecycle
    @available(iOS 13.0, *)
    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
        // Called when a new scene session is being created.
        // Use this method to select a configuration to create the new scene with.
        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }

    @available(iOS 13.0, *)
    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
        // Called when the user discards a scene session.
        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
    }


}

ViewController.swift

import UIKit

class ViewController: UITableViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.

        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Logout", style: .plain, target: self, action: #selector(handleLogout))
    }

    @objc
    func handleLogout() {
        let loginController = LoginController()
        self.navigationController?.pushViewController(loginController, animated: true)
    }
}

这就是我的 Main.Storyboard 的样子

请问我该如何解决这个问题，我上网查看了，但由于我对 iOS 世界完全陌生，我无法解决它。

谢谢 回复

Answer 1

用 UITableviewcontroller 替换您在主情节提要上看到的视图控制器。只需拖放表格视图控制器并将其作为初始视图控制器。

然后将 UItableviewcontroller 类添加到您的项目中。将场景 UITableview 控制器命名为与表视图控制器类名称相同。并且不要忘记将所有插座与视图控制器类连接起来。使用自定义类列右侧的侧边栏附加带有类名的情节提要场景。 

Answer 2

崩溃意味着你使用的是普通的 vc 而不是 tableVC，你必须拖动它（hit command + shift + l）

这个样子

Answer 3

尝试在此处解决此问题：

inplace : class ViewController: UITableViewController {

use : class ViewController: UIViewController {