当推送通知认证请求被延迟时，Firebase消息传送不发送通知

问题描述：

我将Firebase更新为4.2，FirebaseMessaging更新为2.0.3，然后我的推送通知代码不再有效。当推送通知认证请求被延迟时，Firebase消息传送不发送通知

所以我尝试了快速启动项目，并发现如果我稍后请求推送通知，即使它看起来正常生成，令牌也不起作用。（将令牌发送给FCM并获得成功消息，但推送从未传递到设备）。

的火力地堡快速启动回购是：

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{ 

    // Register for remote notifications. This shows a permission dialog on first run, to 
    // show the dialog at a more appropriate time move this registration accordingly. 
    if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) { 
     // iOS 7.1 or earlier. Disable the deprecation warnings. 
#pragma clang diagnostic push 
#pragma clang diagnostic ignored "-Wdeprecated-declarations" 
     UIRemoteNotificationType allNotificationTypes = 
     (UIRemoteNotificationTypeSound | 
     UIRemoteNotificationTypeAlert | 
     UIRemoteNotificationTypeBadge); 
     [application registerForRemoteNotificationTypes:allNotificationTypes]; 
#pragma clang diagnostic pop 
    } else { 
     // iOS 8 or later 
     // [START register_for_notifications] 
     if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_9_x_Max) { 
      UIUserNotificationType allNotificationTypes = 
      (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge); 
      UIUserNotificationSettings *settings = 
      [UIUserNotificationSettings settingsForTypes:allNotificationTypes categories:nil]; 
      [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; 
     } else { 
      // iOS 10 or later 
#if defined(__IPHONE_10_0) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0 
      // For iOS 10 display notification (sent via APNS) 
      [UNUserNotificationCenter currentNotificationCenter].delegate = self; 
      UNAuthorizationOptions authOptions = 
      UNAuthorizationOptionAlert 
      | UNAuthorizationOptionSound 
      | UNAuthorizationOptionBadge; 
      [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:authOptions completionHandler:^(BOOL granted, NSError * _Nullable error) { 
      }]; 
#endif 
     } 

     [[UIApplication sharedApplication] registerForRemoteNotifications]; 
     // [END register_for_notifications] 
    } 
     });

答

原来存在如下问题：与2.0.3构建：https://github.com/firebase/quickstart-ios/blob/master/messaging/MessagingExample/AppDelegate.m

然后我以10秒添加延迟以用于从用户推送通知的请求。他们建议降级FirebaseInstanceID到2.0.0

荚 'FirebaseInstanceID'， '2.0.0'

参考： https://github.com/firebase/quickstart-ios/issues/327#issuecomment-332655731

希望这可以帮助别人！

当推送通知认证请求被延迟时，Firebase消息传送不发送通知

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