小编Mar*_*ian的帖子

我在iOS上遇到FCM通知问题.

我收到成功通知时,我的应用程序是在前台(回调didReceiveRemoteNotification中appdelegate被解雇),但是当应用程序在后台我没有收到通知(我看不出在iOS中的通知栏,任何东西).

所以,我认为问题在于FCM发送的消息格式.我的服务器发送给FCM的json采用以下格式:

{  
   "data":{  
      "title":"mytitle",
      "body":"mybody",
      "url":"myurl"
   },
   "notification":{  
      "title":"mytitle",
      "body":"mybody"
   },
   "to":"/topics/topic"
}

如您所见,我的json中有两个块:一个通知块(用于接收后台通知)和一个数据块(用于接收前台通知).

我无法理解为什么没有收到后台通知.我的疑问是关于块的顺序(如果我在"通知"块之前放置"数据"块会有问题吗？).

编辑: 有关该问题的更多信息.

这是我的appdelegate.swift:

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate
{
    var window: UIWindow?


    // Application started
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool
    {
        let pushNotificationSettings: UIUserNotificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
        application.registerUserNotificationSettings(pushNotificationSettings)
        application.registerForRemoteNotifications()

        FIRApp.configure()

        NSNotificationCenter.defaultCenter().addObserver(self, selector: "tokenRefreshNotification:", name: kFIRInstanceIDTokenRefreshNotification, object: nil)

        return true
    }




    // Handle refresh notification token
    func tokenRefreshNotification(notification: NSNotification) {
        let …