Question

我正在swift 4.2工作，并且收到FireBase的推送通知。当我点击Notification时，它会转到主页。但是我想转到Notification页面。

这是Swift4.2，Xcode 9.3，iOS 12.1。过去，我曾尝试但没有同时前景和无效该应用

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

        FirebaseApp.configure()

        UINavigationBar.appearance().barTintColor = UIColor(red: 0/255.0, green: 85/255.0, blue: 127/255.0, alpha: 1)
        UINavigationBar.appearance().tintColor = UIColor.white
        //        UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white,NSAttributedString.Key.font: UIFont(name: "Roboto-Medium", size: 16)!]
        UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment(UIOffset(horizontal: 0, vertical: -60), for:UIBarMetrics.default)
        UINavigationBar.appearance().isTranslucent = false

        UIApplication.shared.statusBarStyle = .lightContent

        IQKeyboardManager .shared().isEnabled = true
        IQKeyboardManager .shared().shouldResignOnTouchOutside = true
        IQKeyboardManager .shared().isEnableAutoToolbar = false

        if let notification = launchOptions?[.remoteNotification] as? [String: AnyObject] {

            // If your app wasn’t running and the user launches it by tapping the push notification, the push notification is passed to your app in the launchOptions

            let aps = notification["aps"] as! [String: AnyObject]
            UIApplication.shared.applicationIconBadgeNumber = 0


        }            

        if #available(iOS 10.0, *) {
            UNUserNotificationCenter.current().delegate = self
            let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
            UNUserNotificationCenter.current().requestAuthorization(
                options: authOptions,
                completionHandler: {_, _ in })
        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(settings)
        }

        application.registerForRemoteNotifications()


        let mainview = UIStoryboard(name:"Main", bundle: nil).instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController
        let nav = UINavigationController.init(rootViewController: mainview)
        SideMenu = LGSideMenuController.init(rootViewController: nav)
        SideMenuView = UIStoryboard(name:"Main", bundle: nil).instantiateViewController(withIdentifier: "SideMenuViewController") as! SideMenuViewController
        SideMenu.rightViewStatusBarVisibleOptions = .onAll
        let rect = SideMenuView.view.frame;
        SideMenuView.view.frame = rect


        Messaging.messaging().delegate = self
        //        Siren.shared.wail()

        if launchOptions?[UIApplication.LaunchOptionsKey.remoteNotification] != nil {
            // Do your task here
            let dic = launchOptions?[UIApplication.LaunchOptionsKey.remoteNotification] as? NSDictionary
            let dic2 = dic?.value(forKey: "aps") as? NSDictionary
            let alert = dic2?.value(forKey: "alert") as? NSDictionary
            let category = dic2?.value(forKey: "title") as? String
            // We can add one more key name 'click_action' in payload while sending push notification and check category for indentifying the push notification type. 'category' is one of the seven built in key of payload for identifying type of notification and take actions accordingly
            if category == "News Added"
            {
                /// Set the flag true for is app open from Notification and on root view controller check the flag condition to take action accordingly
                AppConstants.sharedInstance.userDefaults.set(true, forKey: AppConstants.sharedInstance.kisFromNotificationSecond)
            }
            else if category == "1-2-1 notification"
            {
                AppConstants.sharedInstance.userDefaults.set(true, forKey: AppConstants.sharedInstance.kisFromNotificationThird)
            }
        }


        return true
    }

Answer 1

用于杀死状态或终止状态：

在 AppDelegate.swift 文件中定义新属性

var isFromNotification = false

在 AppDelegate.swift 中进行以下更改，并保留其余代码。

if launchOptions?[UIApplication.LaunchOptionsKey.remoteNotification] != nil {
    isFromNotification = true
    //other required code
}

转到您的 Homepage.swift 文件

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated).

    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    if appDelegate.isFromNotification {
        appDelegate.isFromNotification = false
        //Push to your notification controler without animation
    }
}

更新：背景和前景状态

@Abu Ul Hassan的评论中提到，以上回答仅适用于“杀死”状态

现在，让我们了解有关背景或前景状态的流程。

当用户在后台或前台模式下单击通知时，会调用

userNotificationCenter(_:didReceive:withCompletionHandler:)方法。

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    //other required code
    //Get current navigation controller and redirect into notification screen
    completionHandler()
}

How to grab current UIViewController or current UINavigationController

如果有效，请标记为接受。

谢谢

Answer 2

这里有两种情况需要处理，一种是application处于活动状态时，另一种是不存在时。

应用程序处于活动状态时，您将在didReceiveNotificationResponse的{{1}}函数中收到回调。您可以相应地对其进行处理。

启动应用程序时，您必须使用从UserNotificationCenterDelegate的{{1}}函数获得的UIApplication.LaunchOptionsKey.remoteNotification键

收到iOS推送通知时如何打开通知视图控制器？

2 个答案: