我们正在使用Xamarin.Firebase.iOS.CloudMessaging来获取推送通知。
除了一个怪癖外,一切正常。
首次安装该应用程序时,将调用RegisteredForRemoteNotifications
,但未设置Messaging.SharedInstance.Fcmtoken
。
该应用随后运行时,它已设置为 。
我们需要FCM令牌,以便我们可以将其发送到后端服务器。
如何在首次安装时获得FCM令牌?
我的代码是:
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
// NOTE that the token passed in here is the Apple APNS token.
// We need the Firebase FCM Token - this is what is used to manage token sending in Firebase.
Messaging.SharedInstance.ApnsToken = deviceToken;
// Why is this empty the first time the app runs?
var fcmToken = Messaging.SharedInstance.FcmToken;
Debug.WriteLine($"RegisteredForRemoteNotifications token:'{deviceToken}'");
// This method can be called with no FCM Token set - so only do something when we've got the token
if (!string.IsNullOrEmpty(fcmToken))
{
Debug.WriteLine($"RegisteredForRemoteNotifications fcmtoken:'{Messaging.SharedInstance.FcmToken}'");
// Subscribe to a 'news' topic so we can send to just those subscribed to this topic
Messaging.SharedInstance.Subscribe("news");
// TODO - we will need to send the fcmToken to the back-end server, with the user details, so that the back-end server
// can then manage notifications and send targetted Notifications to the specific user (e.g. a warning that their policy is expiring soon).
//SendPushNotificationTokenToTempcoverServer(fcmToken);
}
}
答案 0 :(得分:0)
解决方案是将AppDelegate类标记为IMessagingDelegate
。完成此操作后,将调用DidReceiveRegistrationToken
方法,而不是RegisteredForRemoteNotifications
方法。
已将FCM令牌正确填充为token
参数。