ios - FCM 在 iPhone 8 前台模式下无法接收

Question

FCM 在前台和后台条件下都能正确接收 iOS 10 设备，但在 iPhone 8 (iOS 11.2) 情况下，FCM 在后台模式下接收。 Appdelegate 包含

@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

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

    // Print full message.
    print("fcm-->\(userInfo)")

    // Change this to your preferred presentation option


    if UIApplication.shared.applicationState == .active { // In iOS 10 if app is in foreground do nothing.
        completionHandler([])
    }



    NotificationCenter.default.post(name: Notification.Name(rawValue: messageKey), object: nil,userInfo: userInfo)
    completionHandler([])
}

func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = response.notification.request.content.userInfo
    // Print message ID.
    if let messageID = userInfo[messageKey] {
        print("Message ID: \(messageID)")
    }

    // Print full message.
    print("fcm-->1\(userInfo)")
    NotificationCenter.default.post(name: Notification.Name(rawValue: messageKey), object: nil,userInfo: userInfo)
    completionHandler()
}
}
// [END ios_10_message_handling]

extension AppDelegate : MessagingDelegate {
// [START refresh_token]
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
    print("Firebase registration token: \(fcmToken)")

    updateGCMIdInServer(fcmToken)

}

func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
    print("Received data message 10 +: \(remoteMessage)")
    NotificationCenter.default.post(name: NSNotification.Name(rawValue: messageKey), object: nil, userInfo: remoteMessage.appData)
}

}

但是没有到达通知观察者功能。帮助我将数据从 appdelegate 传递到特定的 View Controller

Answer 1

这可能对你有帮助-

@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
        //From here we will navigate to other screens:-


        print("User Info : \(userInfo)")

        // Change this to your preferred presentation option
        //completionHandler([])
        completionHandler([.alert,.sound])
    }