推送通知已传递，但didReceiveRemoteNotification从未称为Swift

问题描述

我已经通过FCM在我的两个相关应用程序中成功实现了推送通知，同时尝试实现一些逻辑以在收到通知时增加徽章编号.

I have successfully implemented push notifications in my two related apps via FCM and while trying to implement some logic to increment badge number on receiving the notification.

我意识到根本没有调用didReceiveRemoteNotification delegate方法，因为我没有得到任何打印，但是我确实从willPresent notification和didReceive response获得打印.因此，在didFinishLaunchingWithOptions中设置UIApplication.shared.applicationIconBadgeNumber无效，但是在didReceive response中进行设置.

I realized that didReceiveRemoteNotificationdelegate method is not called at all as I don't get any prints out of it, but I do get prints from willPresent notificationand didReceive response. So setting UIApplication.shared.applicationIconBadgeNumber in didFinishLaunchingWithOptionshas no effect, but setting in it didReceive responsedoes.

应遵循文档didReceiveRemoteNotification的规定，但在收到通知时我从那里都不会得到印刷品.

Following the documentation didReceiveRemoteNotification should be called but I never get prints out of it when a notification arrives.

我尝试注释掉整个didReceiveRemoteNotification方法，并且通知仍会传递.

I tried commenting out the whole didReceiveRemoteNotificationmethod and notifications are still delivered.

为什么会这样?我想我不太了解在此设置中谁在处理消息.你能帮我澄清一下吗?

Why is it so? I guess I didn't really understand who's handling messaging in this set up. Can you please help me clarifying it?

AppDelegate方法:

AppDelegate methods:

didFinishLaunchingWithOptions:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        window?.tintColor = UIColor.blue
        // Use Firebase library to configure APIs
        FirebaseApp.configure()
        Messaging.messaging().delegate = self
        Crashlytics().debugMode = true
        Fabric.with([Crashlytics.self])
        // setting up notification delegate
        if #available(iOS 10.0, *) {
            //iOS 10.0 and greater
            UNUserNotificationCenter.current().delegate = self
            let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
            //Solicit permission from the user to receive notifications
            UNUserNotificationCenter.current().requestAuthorization(options: authOptions, completionHandler: { granted, error in
                DispatchQueue.main.async {
                    if granted {
                        print("didFinishLaunchingWithOptions iOS 10: Successfully registered for APNs")
                        UIApplication.shared.registerForRemoteNotifications()
//                        UIApplication.shared.applicationIconBadgeNumber = 1
                        AppDelegate.badgeCountNumber = 0
                        UIApplication.shared.applicationIconBadgeNumber = 0
                    } else {
                        //Do stuff if unsuccessful...
                        print("didFinishLaunchingWithOptions iOO 10: Error in registering for APNs: \(String(describing: error))")
                    }
                }
            })
        } else {
            //iOS 9
            let type: UIUserNotificationType = [UIUserNotificationType.badge, UIUserNotificationType.alert, UIUserNotificationType.sound]
            let setting = UIUserNotificationSettings(types: type, categories: nil)
            UIApplication.shared.registerUserNotificationSettings(setting)
            UIApplication.shared.registerForRemoteNotifications()
//            UIApplication.shared.applicationIconBadgeNumber = 1
            UIApplication.shared.applicationIconBadgeNumber = 0
            print("didFinishLaunchingWithOptions iOS 9: Successfully registered for APNs")
        }
        // setting up remote control values
        let _ = RCValues.sharedInstance
        GIDSignIn.sharedInstance().clientID = FirebaseApp.app()?.options.clientID
        Crashlytics().debugMode = true
        Fabric.with([Crashlytics.self])
        //        // TODO: Move this to where you establish a user session
        //        self.logUser()
        var error: NSError?
        do {
            try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        } catch let error1 as NSError{
            error = error1
            print("could not set session. err:\(error!.localizedDescription)")
        }
        do {
            try AVAudioSession.sharedInstance().setActive(true)
        } catch let error1 as NSError{
            error = error1
            print("could not active session. err:\(error!.localizedDescription)")
        }
        // goggle only
        GIDSignIn.sharedInstance().clientID = FirebaseApp.app()?.options.clientID
//        GIDSignIn.sharedInstance().delegate = self
        // Facebook SDK
        return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
//        return true
    }

didReceiveRemoteNotification:

 // foreground
        func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
            print("didReceiveRemoteNotification: Received new push Notification")
            // If you are receiving a notification message while your app is in the background,
            // this callback will not be fired till the user taps on the notification launching the application.
            // TODO: Handle data of notification

            // With swizzling disabled you must let Messaging know about the message, for Analytics
            Messaging.messaging().appDidReceiveMessage(userInfo)
            AppDelegate.badgeCountNumber += userInfo["badge"] as! Int
            print("AppDelegate.badgeCountNumber is : \(String(describing: AppDelegate.badgeCountNumber))")
//            UIApplication.shared.applicationIconBadgeNumber = AppDelegate.badgeCountNumber
            UIApplication.shared.applicationIconBadgeNumber =  10//AppDelegate.badgeCountNumber
            // Print full message.
            print("didReceiveRemoteNotification: Push notificationMessage is: \(userInfo)")
        }




        // background
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                     fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        print("didReceiveRemoteNotification with handler : Received new push Notification while in background")
        // If you are receiving a notification message while your app is in the background,
        // this callback will not be fired till the user taps on the notification launching the application.
        // TODO: Handle data of notification

        // With swizzling disabled you must let Messaging know about the message, for Analytics
        Messaging.messaging().appDidReceiveMessage(userInfo)
        if let messageID = userInfo[ userDetails.fcmToken] { // working for looged in
            print("didReceiveRemoteNotification: Message ID: \(messageID)")
        }

        // Print full message.
        print("didReceiveRemoteNotification: Push notificationMessage is: \(userInfo)")
        AppDelegate.badgeCountNumber += userInfo["badge"] as! Int
        print("AppDelegate.badgeCountNumber is : \(String(describing: AppDelegate.badgeCountNumber))")
        UIApplication.shared.applicationIconBadgeNumber +=  userInfo["badge"] as! Int
        completionHandler(UIBackgroundFetchResult.newData)
    }

推荐答案

我终于找到了解决方案.从App2向App1发送功能后的警报定义中，需要在警报定义中设置警报"content_available": true，否则将传递通知，但不会调用'didReceiveRemoteNotification'并且您不能使用'userInfo'.希望这对其他人有帮助，因为我没有找到有关此问题的太多信息.如果您要使用Postman或类似工具设置通知，请在此处 didReceiveRemoteNotification函数未在FCM通知服务器上调用，因为这是我发现的唯一问题并解决了我的问题.感谢@Ranjani尝试帮助我.

I finally found the solution. Alert needs"content_available": true to be set in the alert definition from the post sending funtion from App2 to App1 or else notifications get delivered but 'didReceiveRemoteNotification` is not called and you can't use 'userInfo'. Hope this will help others as I haven't found much info about this problem. If you're setting the notification with Postman or similars check here didReceiveRemoteNotification function doesn't called with FCM notification server as that's the only post I found on this problem and solved mine. Thanks to @Ranjani for trying helping me.

let postParams: [String : Any] = [
                "to": receiverToken,
                "notification": [
                    "badge" : 1,
                    "body": body,
                    "title": title,
                    "subtitle": subtitle,
                    "sound" : true, // or specify audio name to play
                    "content_available": true, // this will call didReceiveRemoteNotification in receiving app, else won't work
                    "priority": "high"
                ],
                "data" : [
                    "data": "ciao",
            ]
                ]

这篇关于推送通知已传递，但didReceiveRemoteNotification从未称为Swift的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！