Swift UI Demo- 表格,标签,文本框,按钮,网络请求Oc混编_swiftui demo

注意:数据请求要在info.plist文件里加上App Transport Security Settings并设置Allow Arbitrary Loads为YES

AppDelegate.swift

import UIKit
import CoreData

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    //标签栏控制器
    var tabCtl:UITabBarController = UITabBarController.init()


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.

        let stuVc:StudentViewController = StudentViewController()
        stuVc.navigationItem.title = "学生名单"
        stuVc.view.backgroundColor = UIColor.white
        let stuNav:UINavigationController = UINavigationController.init(rootViewController: stuVc)

        let uiVc:MyUIViewController = MyUIViewController()
        uiVc.navigationItem.title = "控件视图"
        uiVc.view.backgroundColor = UIColor.white
        let uiNav = UINavigationController(rootViewController: uiVc)

        let newsVc = NewsViewController()
        newsVc.navigationItem.title = "新闻头条"
        newsVc.view.backgroundColor = UIColor.brown
        let newsNav = UINavigationController(rootViewController: newsVc)

        stuNav.tabBarItem = UITabBarItem.init(title: "学生", image: UIImage.init(named: "hospital"), tag: 100)
        uiNav.tabBarItem = UITabBarItem.init(tabBarSystemItem: UITabBarSystemItem.contacts, tag: 101)
        newsNav.tabBarItem = UITabBarItem.init(tabBarSystemItem: UITabBarSystemItem.bookmarks, tag: 102)

        self.tabCtl.viewControllers = [stuNav,uiNav,newsNav]


        self.window?.rootViewController = self.tabCtl



        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
        // Saves changes in the application's managed object context before the application terminates.
        self.saveContext()
    }

    // MARK: - Core Data stack

    lazy var persistentContainer: NSPersistentContainer = {
        /*
         The persistent container for the application. This implementation
         creates and returns a container, having loaded the store for the
         application to it. This property is optional since there are legitimate
         error conditions that could cause the creation of the store to fail.
        */
        let container = NSPersistentContainer(name: "SwiftUIDemo")
        container.loadPersistentStores(completionHandler: { (storeDescription
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