FIRInstanceID 在 FIRInstanceIDAPNSTokenType.Sandbox 中变为零

Question

您好，我是第一次使用 FCM 推送通知我已经使用以下代码实现了 FCM：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
            let settings: UIUserNotificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
            application.registerUserNotificationSettings(settings)
            application.registerForRemoteNotifications()
            FIRApp.configure()
            NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.tokenRefreshNotification),
                                                         name: kFIRInstanceIDTokenRefreshNotification, object: nil)
        }   
func tokenRefreshNotification(notification: NSNotification) {
        print("refresh token call")
           let refreshedToken = FIRInstanceID.instanceID().token()!
            print("InstanceID token: \(refreshedToken)")

            NSUserDefaults.standardUserDefaults().setObject(refreshedToken, forKey: "deviceToken");
            // Connect to FCM since connection may have failed when attempted before having a token.

            connectToFcm()
            updateDeviceToken()
    }
func connectToFcm() {
        FIRMessaging.messaging().connectWithCompletion { (error) in
            if (error != nil) {
                print("Unable to connect with FCM. \(error)")
            } else {
                print("Connected to FCM.")
            }
        }
    }
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
       FIRInstanceID.instanceID().setAPNSToken(deviceToken, type: FIRInstanceIDAPNSTokenType.Sandbox)
       /*when I comment above line app works fine but not receiving notificaiton 
        in background and If i uncomment above line than app crashes 
        for the first time when I launch on device */
} 
  func applicationDidBecomeActive(application: UIApplication) {
    connectToFcm()
}

应用程序崩溃前正在打印控制台日志 <FIRInstanceID/WARNING> APNS Environment in profile: development。

现在的问题是当我设置 FIRInstanceIDAPNSTokenType.Sandbox 然后应用程序崩溃时我第一次启动 bcaz 我在 tokenRefreshNotification 方法中得到 FIRInstanceID.instanceID().token()! nil。如果我没有将任何 APNS 令牌设置为 FIRInstanceID，那么应用程序可以正常工作，但在这种情况下我没有收到后台通知。并给我解决方案如何检查 FIRInstanceID.instanceID().token()! 是否为零

Answer 1

我刚刚通过 tokenRefreshNotification 方法解决了崩溃处理问题。我正在使用此代码检查 TokenId 是否为零，现在我的应用程序没有崩溃，而且我正在获取令牌 ID：

func tokenRefreshNotification(notification: NSNotification) {
      //  print("refresh token call")
        guard let contents = FIRInstanceID.instanceID().token()
        else {
            return
        }
           // let refreshedToken = FIRInstanceID.instanceID().token()!
            print("InstanceID token: \(contents)")

            NSUserDefaults.standardUserDefaults().setObject(contents, forKey: "deviceToken");
            // Connect to FCM since connection may have failed when attempted before having a token.

            connectToFcm()
            updateDeviceToken()
    }

FIRInstanceID 在 FIRInstanceIDAPNSTokenType.Sandbox 中变为零

FIRInstanceID getting nil in FIRInstanceIDAPNSTokenType.Sandbox

objective-c

push-notification

ios

google-cloud-messaging

swift