Firebase云消息传递不会创建推送通知但会获取信息

Question

我正在完成本教程(https://www.youtube.com/watch?v=JsWHzU1DxjM),尝试将推送通知放入我的iOS应用程序.我能够成功获得APNS的证书,并将"推送通知"和"后台模式"功能设置为开启.此外,当我从firebase控制台发送一个通知时,Firebase可以从通知中获取信息.但是,当应用程序在后台运行时,横幅通知永远不会出现.我觉得我可能在将教程从Objective-C转换为Swift时遇到了问题,因为该教程是在Objective-C中,但我不确定.我把我的AppDelegate类和程序输出如果有帮助的话.

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    connectToFcm()

    NSNotificationCenter.defaultCenter().addObserver(
        self,
        selector: #selector(tokenRefreshCallback),
        name: kFIRInstanceIDTokenRefreshNotification,
        object: nil)

    let allNotificationTypes = UIUserNotificationType(arrayLiteral: UIUserNotificationType.Sound, UIUserNotificationType.Alert, UIUserNotificationType.Badge)
    let settings = UIUserNotificationSettings(forTypes: allNotificationTypes, categories: nil)
    application.registerUserNotificationSettings(settings)
    application.registerForRemoteNotifications()
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: sourceApplication, annotation: annotation)
}

override init() {
    FIRApp.configure()
    FIRDatabase.database().persistenceEnabled = false
}

func applicationWillResignActive(application: UIApplication) {
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

func applicationDidEnterBackground(application: UIApplication) {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    FIRMessaging.messaging().disconnect()
    print("Disconnected from FCM.")
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

func applicationWillEnterForeground(application: UIApplication) {
    connectToFcm()
    // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}

func applicationDidBecomeActive(application: UIApplication) {
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

func applicationWillTerminate(application: UIApplication) {
    //try! FIRAuth.auth()!.signOut()
}

func connectToFcm() {
    FIRMessaging.messaging().connectWithCompletion { (error) in
        if (error != nil) {
            print("Unable to connect with FCM. \(error)")
        } else {
            print("Connected to FCM.")
        }
    }
}


func tokenRefreshCallback(notification: NSNotification) {
    let refreshedToken = FIRInstanceID.instanceID().token()
    print("InstanceID token: \(refreshedToken)")

    // Connect to FCM since connection may have failed when attempted before having a token.
    if (refreshedToken != nil)
    {
        connectToFcm()
    }

    }

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject],
                 fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
    // If you are receiving a notification message while your app is in the background,
    // this callback will not be fired till the user taps on the notification launching the application.
    // TODO: Handle data of notification

    // Print message ID.
    print("\(userInfo)")
    //print("Message ID: \(userInfo["gcm.message_id"]!)")
    NSNotificationCenter.defaultCenter().postNotificationName("name", object: userInfo)

    // Print full message.
    print("%@", userInfo)
}
}

控制台日志:

2016-06-20 19:14:50.801 MapKitTry[2244:721460] Configuring the default app.
2016-06-20 19:14:50.839 MapKitTry[2244:] <FIRAnalytics/INFO> Firebase Analytics v.3200000 started
2016-06-20 19:14:50.846 MapKitTry[2244:] <FIRAnalytics/INFO> To enable debug logging set the following application argument: -FIRAnalyticsDebugEnabled (see -omitted-)
2016-06-20 19:14:50.849: <FIRInstanceID/WARNING> FIRInstanceID AppDelegate proxy enabled, will swizzle app delegate remote notification handlers. To disable add "FirebaseAppDelegateProxyEnabled" to your Info.plist and set it to NO
2016-06-20 19:14:50.849: <FIRInstanceID/WARNING> Failed to fetch APNS token Error Domain=com.firebase.iid Code=1001 "(null)"
2016-06-20 19:14:50.853: <FIRMessaging/INFO> FIRMessaging library version 1.1.0
2016-06-20 19:14:50.863: <FIRMessaging/WARNING> FIRMessaging AppDelegate proxy enabled, will swizzle app delegate remote notification receiver handlers. Add "FirebaseAppDelegateProxyEnabled" to your Info.plist and set it to NO
2016-06-20 19:14:50.902 MapKitTry[2244:] <FIRAnalytics/INFO> Successfully created Firebase Analytics App Delegate Proxy automatically. To disable the proxy, set the flag FirebaseAppDelegateProxyEnabled to NO in the Info.plist
no login
2016-06-20 19:14:51.076 MapKitTry[2244:] <FIRAnalytics/INFO> Firebase Analytics enabled
Connected to FCM.
[notification: {
body = "Push notification";
e = 1;
}, collapse_key: pdrum3.KingOfTheTown, from: 302278087187]
%@ [notification: {
body = "Push notification";
e = 1;
}, collapse_key: pdrum3.KingOfTheTown, from: 302278087187]

Answer 1

FirebaseAppDelegateProxyEnabled在info.plist中添加"Boolean"值"NO":

Answer 2

我还必须AppDelegate按照此处的建议将其添加到我的.

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