ios - UITabBarController 以编程方式添加 Controller 导致通知打开时出现问题

Question

以下是我以编程方式将 Controller 添加到 UITabBarController 的代码

class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?

var firstTabNavigationController : UINavigationController!
var secondTabNavigationControoller : UINavigationController!
var thirdTabNavigationController : UINavigationController!
var fourthTabNavigationControoller : UINavigationController!
var fifthTabNavigationController : UINavigationController!


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

   window = UIWindow(frame: UIScreen.main.bounds)


    window?.backgroundColor = UIColor.black


    let tabBarController = UITabBarController()

    firstTabNavigationController = UINavigationController.init(rootViewController: FirstViewController())
    secondTabNavigationControoller = UINavigationController.init(rootViewController: SecondViewController())
    thirdTabNavigationController = UINavigationController.init(rootViewController: ThirdViewController())
    fourthTabNavigationControoller = UINavigationController.init(rootViewController: FourthViewController())
    fifthTabNavigationController = UINavigationController.init(rootViewController: FifthViewController())

    tabBarController.viewControllers = [firstTabNavigationController, secondTabNavigationControoller, thirdTabNavigationController, fourthTabNavigationControoller, fifthTabNavigationController]


    let item1 = UITabBarItem(title: "Home", image: UIImage(named: "ico-home"), tag: 0)
    let item2 = UITabBarItem(title: "Contest", image:  UIImage(named: "ico-contest"), tag: 1)
    let item3 = UITabBarItem(title: "Post a Picture", image:  UIImage(named: "ico-photo"), tag: 2)
    let item4 = UITabBarItem(title: "Prizes", image:  UIImage(named: "ico-prizes"), tag: 3)
    let item5 = UITabBarItem(title: "Profile", image:  UIImage(named: "ico-profile"), tag: 4)

    firstTabNavigationController.tabBarItem = item1
    secondTabNavigationControoller.tabBarItem = item2
    thirdTabNavigationController.tabBarItem = item3
    fourthTabNavigationControoller.tabBarItem = item4
    fifthTabNavigationController.tabBarItem = item5

    UITabBar.appearance().tintColor = UIColor(red: 0/255.0, green: 146/255.0, blue: 248/255.0, alpha: 1.0)

    self.window?.rootViewController = tabBarController

    window?.makeKeyAndVisible()

    return true
}

现在这工作正常但是当我的应用程序关闭并且通知打开时它只是带我到主页而不是预期的页面

以下是处理通知的代码

@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    // Called to let your app know which action was selected by the user for a given notification.
    let userInfo = response.notification.request.content.userInfo as? NSDictionary
    var userNotification : UserNotification?
    if userInfo is [String : Any] {
        userNotification = createNSaveNotification(userInfo as! [AnyHashable : Any])
    }
    DeeplinkHandler.handleNotification(userNotification: userNotification)
}

类DeeplinkHandler主要方法代码

class func handleNotification(userNotification :  UserNotification?){
    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    DispatchQueue.main.asyncAfter(deadline: .now() + 0.8) {
        if let tabBarController = appDelegate.window?.rootViewController as? UITabBarController,
            let navController = tabBarController.selectedViewController as? UINavigationController {
            handleDeeplinkByType(navController,userNotification)
        }
    }
}

现在观察我已经添加了 DispatchQueue.main.asyncAfter(deadline: .now() + 0.8) 时间延迟来处理通知 通知点击重定向到用户，只有在添加最小延迟时间的情况下，否则它不工作

如何处理这种情况并要求应用程序等待第一个标签栏 ViewController 在处理通知之前准备好

Answer 1

您可以复制 (tabBarController.viewControllers) 添加您的 newViewController 并设置 (tabBarController.viewControllers = newViewControllers)