Question

我是Firebase FCM集成的新手，我正面临一些问题。当我第一次安装应用程序时，我没有收到推送通知，但是如果我打开并关闭应用程序几次然后从Firebase发送推送通知，我将收到通知而不会更改客户端或服务器代码。任何人都可以帮我解决这个问题吗？

我已将我的appdelegate代码附加到

下面

import UIKit
import Firebase
import UserNotifications
import FirebaseMessaging
import FirebaseInstanceID

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate,UNUserNotificationCenterDelegate,MessagingDelegate {

    var window: UIWindow?


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


        FirebaseApp.configure()

        if #available(iOS 10.0, *) {
            // For iOS 10 display notification (sent via APNS)
            UNUserNotificationCenter.current().delegate = self

            let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
            UNUserNotificationCenter.current().requestAuthorization(
                options: authOptions,
                completionHandler: { (granted, error) in
                    if error == nil{
                        UIApplication.shared.registerForRemoteNotifications()
                    }
            })
        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(settings)
                application.registerForRemoteNotifications()
        }

        application.registerForRemoteNotifications()
        return true
    }

    func messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) {
        print("Firebase registration token: \(fcmToken)")
    }

    func application(_ application: UIApplication, didRegister notificationSettings: UIUserNotificationSettings) {
        UIApplication.shared.registerForRemoteNotifications()
    }

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        // I have tried both method but none worked and i also tried MessagingAPNSTokenType.sandbox and prod
        // Method 1: Messaging.messaging().apnsToken = deviceToken
        // Method 2:
        Messaging.messaging().setAPNSToken(deviceToken, type: MessagingAPNSTokenType.unknown)
    }
}

提前致谢

Answer 1

我遇到了与您相同的问题，如果FCM token未及早调用APNs device token，则UIApplication.shared.registerForRemoteNotifications()并不总是与FirebaseInstanceID SDK相关联。

根据this GitHub主题，此问题已在FirebaseInstanceID pod to 2.0.0中修复，并且应尽快推出。

与此同时，您可以：

将您的UIApplication.shared.registerForRemoteNotifications()锁定在您的Podfile中，或

确保您在应用开始时调用FirebaseApp.configure()，最好是Single Token push之前。

<强>更新
我刚做了一些额外的测试，我注意到这有点随机，什么时候会有效。对于某些设备，它可以立即为某些设备工作。对于某些设备User Segment工作而非Single Token push。我设法使其成功，以便您至少通过添加以下内容获得User Segment或func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { if #available(iOS 10.0, *) { let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound] UNUserNotificationCenter.current().requestAuthorization( options: authOptions, completionHandler: {_, _ in }) // For iOS 10 display notification (sent via APNS) UNUserNotificationCenter.current().delegate = self // For iOS 10 data message (sent via FCM) Messaging.messaging().delegate = self application.registerForRemoteNotifications() print("::: registerForRemoteNotifications iOS 10") } else { let settings: UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil) application.registerUserNotificationSettings(settings) application.registerForRemoteNotifications() print("::: registerUserNotificationSettings iOS 9") } FirebaseApp.configure() Messaging.messaging().delegate = self Messaging.messaging().shouldEstablishDirectChannel = true if let refreshedToken = InstanceID.instanceID().token() { print("::: InstanceID token: \(refreshedToken)") } NotificationCenter.default.addObserver(self, selector: #selector(tokenRefreshNotification), name: NSNotification.Name.InstanceIDTokenRefresh, object: nil) } func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { Messaging.messaging().setAPNSToken(deviceToken, type: .prod) if let refreshedToken = InstanceID.instanceID().token() { print("InstanceID token: \(refreshedToken)") } }：

didRegisterForRemoteNotificationsWithDeviceToken

如果您不访问{{1}}函数，它将无法工作。

Answer 2

Firebase FCM，生成第一个令牌需要一些时间。获得此令牌后，您将开始接收推送通知。看看这些。肯定会很清楚：

Check this answer
AppDelegate implementation with FCM

希望这有帮助。

Answer 3

通过此

更新您的appdelegate

import FirebaseCore
import FirebaseInstanceID
import FirebaseMessaging
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate{

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        self.fcmInitialSetup(application)
        return true
    }
    func fcmInitialSetup(_ application: UIApplication){

        // [START register_for_notifications]
        if #available(iOS 10.0, *) {
            let uns: UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(uns)
            application.registerForRemoteNotifications()

        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(settings)
        }

        application.registerForRemoteNotifications()

        // [END register_for_notifications]

        FIRApp.configure()

        // Add observer for InstanceID token refresh callback.
        NotificationCenter.default.addObserver(self, selector: #selector(self.tokenRefreshNotification), name: NSNotification.Name.firInstanceIDTokenRefresh, object: nil)

        if let token = FIRInstanceID.instanceID().token() {
            sendTokenToServer(token)
        }
    }

    func sendTokenToServer(_ currentToken: String) {
        print("sendTokenToServer() Token: \(currentToken)")
        // Send token to server ONLY IF NECESSARY

        print("InstanceID token: \(currentToken)")
        self.token = currentToken
        UserDefaults.standard.set(self.token, forKey: "token")
        UserDefaults.standard.synchronize()
        if self.token != nil{
            let userInfo = ["token": self.token]
            NotificationCenter.default.post(
                name: Notification.Name(rawValue: self.rkey), object: nil, userInfo: userInfo)
        }
    }


    // NOTE: Need to use this when swizzling is disabled
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let tokenChars = (deviceToken as NSData).bytes.bindMemory(to: CChar.self, capacity: deviceToken.count)
        var tokenString = ""

        for i in 0..<deviceToken.count {
            tokenString += String(format: "%02.2hhx", arguments: [tokenChars[i]])
        }

        FIRInstanceID.instanceID().setAPNSToken(deviceToken, type: FIRInstanceIDAPNSTokenType.unknown)
        print("Device Token:", tokenString)
        print("FIRInstanceID.instanceID().token() Token:", FIRInstanceID.instanceID().token())
        if let tokenData = FIRInstanceID.instanceID().token(){
            UserDefaults.standard.set(tokenData, forKey: "token")
            UserDefaults.standard.synchronize()
            let userInfo = ["token": tokenData]
        }
    }

    func tokenRefreshNotification(_ notification: Notification) {
        // NOTE: It can be nil here
        //        print("Token:\(FIRInstanceID.instanceID().token()!)")
        if let refreshedToken = FIRInstanceID.instanceID().token() {
            print("InstanceID token: \(refreshedToken)")
            UserDefaults.standard.set(refreshedToken, forKey: "token")
            UserDefaults.standard.synchronize()
            print("update now \(self.token)")
            if self.token != nil{
                let userInfo = ["token": self.token]
                NotificationCenter.default.post(
                    name: Notification.Name(rawValue: self.rkey), object: nil, userInfo: userInfo)
            }

        }

        // Connect to FCM since connection may have failed when attempted before having a token.
        connectToFcm()
    }
    // [END refresh_token]
    func connectToFcm() {
        FIRMessaging.messaging().connect { (error) in
            if (error != nil) {
                print("Unable to connect with FCM. \(error)")
            } else {
                print("Connected to FCM.")
            }
        }
    }

    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
        print(userInfo)
    }

    func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
        print("Within open URL")
        return true
    }


    // [START receive_apns_token_error]
    func application( _ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError
        error: Error ) {
        print("Registration for remote notification failed with error: \(error.localizedDescription)")
        // [END receive_apns_token_error]
        let userInfo = ["error": error.localizedDescription]
        NotificationCenter.default.post(
            name: Notification.Name(rawValue: rkey), object: nil, userInfo: userInfo)
    }

    func registrationHandler(_ token: String!, error: NSError!) {
        if (token != nil) {
            self.token = token!
            print("Registration Token: \(self.token)")
            UserDefaults.standard.set(self.token, forKey: "token")
            UserDefaults.standard.synchronize()
            let userInfo = ["token": self.token]
            NotificationCenter.default.post(
                name: Notification.Name(rawValue: self.rkey), object: nil, userInfo: userInfo)
        } else {
            print("Registration to GCM failed with error: \(error.localizedDescription)")
            let userInfo = ["error": error.localizedDescription]
            NotificationCenter.default.post(
                name: Notification.Name(rawValue: self.rkey), object: nil, userInfo: userInfo)
        }
    }

    func registerForPushNotifications(_ application: UIApplication) {
        let notificationSettings = UIUserNotificationSettings(
            types: [.badge, .sound, .alert], categories: nil)
        application.registerUserNotificationSettings(notificationSettings)
    }

    func application(_ application: UIApplication, didRegister notificationSettings: UIUserNotificationSettings) {
        if notificationSettings.types != UIUserNotificationType() {
            application.registerForRemoteNotifications()
        }
    }

    // [START receive_message]
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                     fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        // 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

        // Print message ID. add Toast
        print(userInfo);

        print(application.keyWindow?.visibleViewController() ?? "")

        print("Message ID: \(userInfo["gcm.message_id"]!)")


        // Print full message.
        print("%@", userInfo)
    }
    // [END receive_message]



    func applicationDidBecomeActive(_ application: UIApplication) {
        connectToFcm()
    }

    // [START disconnect_from_fcm]
    func applicationDidEnterBackground(_ application: UIApplication) {
        //        FIRMessaging.messaging().disconnect()
        //        print("Disconnected from FCM.")
    }

    func application(_ application: UIApplication, performFetchWithCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {

    }
}
// [END disconnect_from_fcm]


// [START ios_10_message_handling]
@available(iOS 10, *)
extension AppDelegate : UNUserNotificationCenterDelegate {

    // Receive displayed notifications for iOS 10 devices.
    func userNotificationCenter(_ center: UNUserNotificationCenter,
                                willPresent notification: UNNotification,
                                withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        let userInfo = notification.request.content.userInfo
        // Print message ID.
        print("Message ID: \(userInfo["gcm.message_id"]!)")
        // Print message ID. add Toast

        // Print full message.
        print("%@", userInfo)
        // Print full message.
        print("%@", userInfo)
    }
}

extension AppDelegate : FIRMessagingDelegate {
    // Receive data message on iOS 10 devices.
    func applicationReceivedRemoteMessage(_ remoteMessage: FIRMessagingRemoteMessage) {
        print("%@", remoteMessage.appData)
    }
}

Answer 4

NotificationCenter.default.addObserver（自选择器：#selector（self.getFcmToken），name：.firInstanceIDTokenRefresh，对象：无）

把它放在应用程序中finsih启动方法并制作一个功能

func getFcmToken（通知：NSNotification）{

    guard let contents = FIRInstanceID.instanceID().token()
        else {
            return
    }
    print("InstanceID token: \(contents)")
    if let token = FIRInstanceID.instanceID().token(){
        print(token)

}

Firebase FCM最初无法正常工作，但如果应用程序打开则会工作3-4次

4 个答案: