ios - 如何获取通知以将我带到所需的 viewController？

Question

我正在开发一个项目，但很难收到将我带到“NotiViewController”的通知。有时它会按预期工作，但其他时候它只是将我的应用程序打开到我上次使用的任何 viewController。

我将这段代码与一些在线资源结合在一起:

extension QuestionViewController: UNUserNotificationCenterDelegate{
   func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: 
   UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> 
   Void) {
      let vc = storyboard?.instantiateViewController(withIdentifier: "NotiViewControllerID") 
      as! NotiViewController
      show(vc, sender: Any?.self)        
      completionHandler()
}

我希望能够发送一条通知，询问用户一个问题，然后一旦单击，用户就会得到答案...

例如通知问题:“美国本土有多少个州？” =>点击通知=>加载适当的NotiViewController:“48”

Answer 1

试试这个代码:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    //when application is close

    if let userInfo = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [AnyHashable : Any] {
        print(userInfo)
        self.getBGUserInfo(userInfo: userInfo)
        // if notification call to redirect perticular page

    }
}
func getBGUserInfo(userInfo : [AnyHashable : Any] )  {
    //get userInfo details here
    NotificationCenter.default.post(name: Notification.Name(rawValue: "NotificationRedirect"), object: nil)
}
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    NotificationCenter.default.post(name: Notification.Name(rawValue: "NotificationRedirect"), object: nil)
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    NotificationCenter.default.post(name: Notification.Name(rawValue: "NotificationRedirect"), object: nil)
}

//In ViewController which open first while open app
//In ViewDidLoad
NotificationCenter.default.addObserver(self, selector: #selector(self.receiveTestNotification(_:)), name: NSNotification.Name(rawValue: "NotificationRedirect"), object: nil)
//Over

func receiveTestNotification(_ notification: Notification) {
    let notName : String = String(describing: notification.name.rawValue)
    if (notName == "NotificationRedirect"){
        //Redirect your NotiViewController
    }

}