ios - 如果用户不允许快速通知，则不会调用 didRefreshRegistrationToken

Question

在我尝试了很多可能有解决这个问题的问题后，我的问题没有得到解决:

我想获得FCM Token。在 AppDelegate.swift 我导入了

import UserNotifications
import Firebase
import FirebaseInstanceID
import FirebaseMessaging

之后，我用 UNUserNotificationCenterDelegate, MessagingDelegate 对其进行了扩展，然后在 didFinishLaunchingWithOptions 中添加了:

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: {_, _ in })
            // For iOS 10 data message (sent via FCM
            Messaging.messaging().delegate = self
        } else {
            let settings: UIUserNotificationSettings =
                UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
            application.registerUserNotificationSettings(settings)
        }

        application.registerForRemoteNotifications()

        FirebaseApp.configure()

然后我添加了这四个函数:

func application(_ application: UIApplication,
                     didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        Messaging.messaging().apnsToken = deviceToken as Data

    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        print("Here")
    }

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

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

现在的问题是，当我运行该应用程序时，它会显示警报，要求获得发送通知的权限。允许或不允许它不是我关心的问题我已经实现了 MessagingDelegate 方法 didRefreshRegistrationToken 所以它应该被调用，但它没有调用该方法。那我是不是漏掉了什么？

Answer 1

你必须像那样添加一个观察者

NotificationCenter.default.addObserver(self, selector: #selector(self.tokenRefreshNotification), name: NSNotification.Name.InstanceIDTokenRefresh, object: nil)

然后像那样在您的 Appdelegate 中添加此方法

func tokenRefreshNotification(_ notification: Notification) {
    if let refreshedToken = InstanceID.instanceID().token() {
        print("InstanceID token: \(refreshedToken)")
    }
}

希望对您有所帮助。