iOS设备上未收到Firebase推送通知。尽管控制台记录消息，但它是在设备上接收的

Question

我根据Firebase控制台中提供的说明创建了一个示例ios应用程序，用于在ios设备上接收云消息。通知消息从控制台发送，并打印在应用程序控制台上。但即使在给予必要的许可后，设备上也不会收到推送通知。

我正在使用swift 3和xCode 10.3版本。在Firebase控制台中注册了该应用程序，并通过该应用程序接收所需的FCM令牌，并添加该令牌以向设备发送测试消息。尝试通过控制台发送大量消息，但没有一条消息显示在设备上。它显示消息正在控制台上成功发送。

以下是我编写的用于接收消息推送的AppDelegate.swift文件。

import UIKit
import UserNotifications
import Firebase
import FirebaseMessaging
import FirebaseInstanceID

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    let gcmMessageIDKey = "gcm.message_id"

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

        if #available(iOS 10.0, *) {

            FirebaseApp.configure()           

            Messaging.messaging().delegate = self
            Messaging.messaging().shouldEstablishDirectChannel = true

            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)
        }


        // request permission from user to send notification
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound], completionHandler: { authorized, error in
            if authorized {
                DispatchQueue.main.async(execute: {
                    application.registerForRemoteNotifications()
                })
            }
            else{
                print("Notification access denied")
            }
        })
        return true
    }


    // [START receive_message]
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {

        if let messageID = userInfo[gcmMessageIDKey] {
            print("Message ID: \(messageID)")
        }

        print(userInfo)
    }

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

        if let messageID = userInfo[gcmMessageIDKey] {
            print("Message ID: \(messageID)")
        }

        print(userInfo)

        completionHandler(UIBackgroundFetchResult.newData)
    }

    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        print("Unable to register for remote notifications: \(error.localizedDescription)")
    }


    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        Messaging.messaging().apnsToken = deviceToken
        print("APNs token retrieved: \(deviceToken)")


    }

}

@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(userInfo)
         print("Message ID: \(userInfo["gcm.message_id"]!)")
        completionHandler(UNNotificationPresentationOptions.alert)

    }

    func userNotificationCenter(_ center: UNUserNotificationCenter,
                                didReceive response: UNNotificationResponse,
                                withCompletionHandler completionHandler: @escaping () -> Void) {
        let userInfo = response.notification.request.content.userInfo

        print("Do what ever you want")
        // Print full message.
        print("tap on on forground app",userInfo)


        completionHandler()
    }
}

extension AppDelegate : MessagingDelegate {

    func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
        print("Firebase registration token: \(fcmToken)")
        Messaging.messaging().subscribe(toTopic: "/topics/nutriewell_live")
        Messaging.messaging().shouldEstablishDirectChannel = true

    }

    func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
        print("Received data message: \(remoteMessage.appData)")
    }


}

我希望ios设备上有推送通知，但我没有收到任何通知。我得到了以下输出，其中打印了从控制台发送的通知消息。

2019-08-15 11:20:32.548066+0530 FirebaseIos[800:207059]  - <AppMeasurement>[I-ACS036002] Analytics screen reporting is enabled. Call +[FIRAnalytics setScreenName:setScreenClass:] to set the screen name or override the default screen class name. 




To disable screen reporting, set the flag FirebaseScreenReportingEnabled to NO (boolean) in the Info.plist



2019-08-15 11:20:32.949393+0530 FirebaseIos[800:207068] 6.2.0 - [Firebase/Messaging][I-FCM001000] FIRMessaging Remote Notifications proxy enabled, will swizzle remote notification receiver handlers. If you'd prefer to manually integrate Firebase Messaging, add "FirebaseAppDelegateProxyEnabled" to your Info.plist, and set it to NO. 


Firebase registration token: fsyB51mCvbg:APA91bFvRFPIxauHfKA-v-K29YTWl_TYFTgCpnvODrFA2rG8qN-F8vcLIWcZ-lOChkJw-pIBVhcxg2epBz7AYVALMNLC4Hs6M4ds_pQXytYymjr15KMqOt08_7PkmYkU1jHy6xcw5hvx
2019-08-15 11:20:34.914040+0530 FirebaseIos[800:207059] 6.2.0 - [Firebase/Messaging][I-FCM002024] Format '/topics/nutriewell_live' is deprecated. Only 'nutriewell_live' should be used in subscribeToTopic.
Notification access denied


2019-08-15 11:20:48.869741+0530 FirebaseIos[800:207068] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C7.1:2][0x101537e10] get output frames failed, state 8196




Received data message: [AnyHashable("notification"): {
    body = "firebase ios";
    e = 1;
    tag = "campaign_collapse_key_3627158360856700759";
    title = "firebase!";
}, AnyHashable("from"): 591363996390, AnyHashable("collapse_key"): com.combank.Firebase.Ios]
%@ [AnyHashable("notification"): {
    body = "firebase ios";
    e = 1;
    tag = "campaign_collapse_key_3627158360856700759";
    title = "firebase!";
}, AnyHashable("from"): 591363996390, AnyHashable("collapse_key"): com.combank.Firebase.Ios]





    Received data message: [AnyHashable("collapse_key"): com.combank.Firebase.Ios, AnyHashable("from"): 591363996390, AnyHashable("notification"): {
        body = "firebase ios";
        e = 1;
        tag = "campaign_collapse_key_750970355066402639";
        title = "firebase!";
    }]




%@ [AnyHashable("collapse_key"): com.combank.Firebase.Ios, AnyHashable("from"): 591363996390, AnyHashable("notification"): {
    body = "firebase ios";
    e = 1;
    tag = "campaign_collapse_key_750970355066402639";
    title = "firebase!";
}]




2019-08-15 11:22:34.475335+0530 FirebaseIos[800:207131] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x1015273f0] get output frames failed, state 8196

有什么可以帮我的吗？

Answer 1

接收通知有两种方式：

>

当应用程序处于关闭/非活动状态，并且您在didFinishLaunchingWithOptions中获得有效负载时：

当应用程序处于打开/活动状态且当前可见时，您将在didReceiveRemoteNotification中获得有效负载：

当你的应用程序关闭时，iOS会显示通知（如果未开发通知扩展），并在你点击时启动你的应用程序。

如果您的应用程序打开，您必须注意显示此通知或忽略它。

以下是官方文件的内容：

如果本地和远程通知不是由您的应用程序或用户直接处理的，则它们会显示在通知中心，以便稍后查看。使用getDeliveredNotificationsWithCompletionHandler:shared UNUserNotificationCenter对象的方法获取仍在通知中心显示的通知列表。如果发现任何现已过时且不应向用户显示的通知，可以使用removeDeliveredNotificationsWithIdentifiers:方法删除它们。

官方文件