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  • Ios Firebase FCM最初不工作，但如果应用程序打开，会在3-4次后工作

Ios Firebase FCM最初不工作，但如果应用程序打开，会在3-4次后工作

ios swift firebase push-notification

Ios Firebase FCM最初不工作，但如果应用程序打开，会在3-4次后工作,ios,swift,firebase,push-notification,firebase-cloud-messaging,Ios,Swift,Firebase,Push Notification,Firebase Cloud Messaging,我是Firebase FCM集成的新手，我面临一些问题。第一次安装应用程序时，我不会收到推送通知，但如果我打开和关闭应用程序几次，然后从Firebase发送推送通知，我会收到通知，而不会更改客户端或服务器代码。有人能帮我吗 我已在下面附上我的appdelegate代码 import UIKit import Firebase import UserNotifications import FirebaseMessaging import FirebaseInstanceID @UIApplic

我是Firebase FCM集成的新手，我面临一些问题。第一次安装应用程序时，我不会收到推送通知，但如果我打开和关闭应用程序几次，然后从Firebase发送推送通知，我会收到通知，而不会更改客户端或服务器代码。有人能帮我吗

我已在下面附上我的appdelegate代码

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)
    }
}
提前感谢

我遇到了与您相同的问题，并且存在一个已知问题，即如果
UIApplication.shared.registerforremotentifications（）
调用得不够早，则
FCM令牌
并不总是与
APNs设备令牌
关联

根据GitHub线程的说法，这个问题已经在
FirebaseInstanceID SDK
中修复，应该很快就会出来

同时，您可以：

将您的
FirebaseInstanceID pod锁定到pod文件中的2.0.0
，或

确保在应用程序启动时调用
UIApplication.shared.registerforremotentifications（）
，最好在
FirebaseApp.configure（）之前

更新：

我只是做了一些额外的测试，我注意到这是一个有点随机的时候，这将工作。对于某些设备，它立即起作用，而对于某些设备则不起作用。对于某些设备，
单令牌推送
工作，而不是
用户段
。我设法让它工作起来，通过添加以下内容，您至少可以获得
单令牌推送
或
用户段
：


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)")
    }
}



问题是，如果您不访问
didRegisterForRemoteNotificationsWithDeviceToken
函数，它将无法工作。
Firebase FCM，需要一些时间才能生成其第一个令牌。获得此令牌后，您将开始接收推送通知。看看这些。可以肯定的是：


  • 

  • 

    希望这有帮助。
    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)
    }
}

    

    导入FirebaseCore
导入FirebaseInstanceID
导入FirebaseMessaging
导入用户通知
@UIApplicationMain
类AppDelegate:UIResponder、UIApplicationLegate{
func应用程序（application:UIApplication，didFinishLaunchingWithOptions launchOptions:[UIApplicationLaunchOptions:[UIApplicationLaunchOptions:任何]？）->Bool{
self.fcminitialstup（应用程序）
返回真值
}
func fcmInitialSetup（u应用程序：ui应用程序）{
//[启动注册\u以获取\u通知]
如果可用（iOS 10.0，*）{
let uns:UIUserNotificationSettings=UIUserNotificationSettings（类型：[.alert、.badge、.sound]，类别：nil）
application.registerUserNotificationSettings（uns）
应用程序.注册表项更改（）
}否则{
let设置：UIUserNotificationSettings=
UIUserNotificationSettings（类型：[.alert、.badge、.sound]，类别：nil）
application.registerUserNotificationSettings（设置）
}
应用程序.注册表项更改（）
//[结束注册以获取通知]
FIRApp.configure（）
//添加InstanceID令牌刷新回调的观察者。
NotificationCenter.default.addObserver（self，选择器：#选择器（self.tokenRefreshNotification），名称：NSNotification.name.firInstanceIDTokenRefresh，对象：nil）
如果let token=FIRInstanceID.instanceID（）.token（）{
sendTokenToServer（令牌）
}
}
func sendTokenToServer（currentToken:String）{
打印（“sendTokenToServer（）令牌：\（currentToken）”）
//仅在必要时向服务器发送令牌
打印（“InstanceID标记：\（currentToken）”）
self.token=currentToken
UserDefaults.standard.set（self.token，forKey:“token”）
UserDefaults.standard.synchronize（）
如果self.token！=nil{
让userInfo=[“token”：self.token]
NotificationCenter.default.post(
name:Notification.name（rawValue:self.rkey），object:nil，userInfo:userInfo）
}
}
//注意：禁用swizzling时需要使用此选项
func应用程序（application:UIApplication，DidRegisterForRemotionTificationswithDeviceToken deviceToken:Data）{
让tokenChars=（deviceToken作为NSData）.bytes.bindMemory（to:CChar.self，capacity:deviceToken.count）
var tokenString=“”
因为我在0..Bool{
打印（“在打开的URL内”）
返回真值
}
//[开始接收\u apns\u令牌\u错误]
func应用程序（application:UIApplication，didFailToRegisterForRemoteNotificationsWithError
错误：错误）{
打印（“远程通知注册失败，错误：\（error.localizedDescription）”）
//[结束接收\u apns\u令牌\u错误]
let userInfo=[“error”：error.localizedDescription]
NotificationCenter.default.post(
name:Notification.name（rawValue:rkey），object:nil，userInfo:userInfo）
}
func registrationHandler（uToken:String！，错误：NSError！）{
如果（令牌！=nil）{
self.token=令牌！
打印（“注册令牌：\（self.Token）”）
UserDefaults.standard.set（self.token，forKey:“token”）
UserDefaults.standard.synchronize（）
让userInfo=[“token”：self.token]
NotificationCenter.default.post(
name:Notification.name（rawValue:self.rkey），object:nil，userInfo:userInfo）
}否则{
打印（“向GCM注册失败，错误：\（error.localizedDescription）”）
let userInfo=[“error”：error.localizedDescription]
NotificationCenter.default.post(
name:Notification.name（rawValue:self.rkey），object:nil，userInfo:userInfo）
}
}
func registerForPushNotifications（uApplication:UIApplication）{
让notificationSettings=UIUserNotificationSettings(
类型：[.badge、.sound、.alert]，类别：无

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