使用UserNotifications呈现ViewController didReceive响应

Question

我在其中实现了UserNotifications的LocalNotification类。我在我需要提供的初始ViewController和CheckViewController之间创建了segue。那是我的didReceive responce功能

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) { let storyboard = UIStoryboard(name: "Main", bundle: nil) let nav = storyboard.instantiateInitialViewController() as! UINavigationController let mainViewController = nav.topViewController as! ViewController mainViewController.performSegue(withIdentifier: "CheckSegue", sender: nil) }

但我仍然得到 - 是最初的ViewController。我哪里错了？

Answer 1

MainViewController是初始视图控制器吗？如果是这样，您看到的实例是应用程序的根。您正在创建一个不可见的全新实例。

尝试

let nav = UIApplication.shared.keyWindow?.rootViewController as? UINavigationController

而不是

let nav = storyboard.instantiateInitialViewController() as! UINavigationController