swift 关于集成firebase

记录下

去firebase上申请应用，上传相应的证书，配置相关内容。将配置后的GoogleService-Info.plist下载下来并导入工程根目录下。

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我是使用cocopods导入需要的firebase(项目中用到了Analytics，Messaging，Performance，Crashlytics)
pod 'Firebase/Analytics'
pod 'Firebase/Messaging'
pod 'Firebase/Performance'
pod 'Firebase/Crashlytics'
在didFinishLaunchingWithOptions中初始化firebase

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func initFireBase(application: UIApplication)  {

    FirebaseApp.configure()

    // [START set_messaging_delegate]

    Messaging.messaging().delegate = self

//        let token = FIRInstanceID.instanceID().token()!

// [END set_messaging_delegate]      

// 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.

        // [START register_for_notifications]

    if #available(iOS 10.0, *) {

        // For iOS 10 display notification (sent via APNS)
        UNUserNotificationCenter.current().delegate = self
        let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
              UNUserNotificationCenter.current().requestAuthorization(
        options: authOptions,
        completionHandler: {_, _ in })
    } else {
        let settings: UIUserNotificationSettings =
          UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
          application.registerUserNotificationSettings(settings)
    }
    application.registerForRemoteNotifications()
}
// [START receive_message]
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
     Messaging.messaging().appDidReceiveMessage(userInfo)
    // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
      print("Message ID: \(messageID)")
    }

    // Print full message.
    print(userInfo)
  }

  func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                   fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
     Messaging.messaging().appDidReceiveMessage(userInfo)
    // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
      print("Message ID: \(messageID)")
    }
    // Print full message.
    print(userInfo)

    completionHandler(UIBackgroundFetchResult.newData)
  }
  // [END receive_message]
  func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("Unable to register for remote notifications: \(error.localizedDescription)")
  }

  // This function is added here only for debugging purposes, and can be removed if swizzling is enabled.
  // If swizzling is disabled then this function must be implemented so that the APNs token can be paired to
  // the FCM registration token.
  func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    print("APNs token retrieved: \(deviceToken)")
     Messaging.messaging().apnsToken = deviceToken
    }
   }
extension AppDelegate{
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    let userInfo = notification.request.content.userInfo

    // With swizzling disabled you must let Messaging know about the message, for Analytics
    Messaging.messaging().appDidReceiveMessage(userInfo)
    // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
          print("Message ID: \(messageID)")
    }
    kHasNotice = true
    // Print full message.
    print(userInfo)

    // Change this to your preferred presentation option
    completionHandler([[.alert, .sound]])
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = response.notification.request.content.userInfo
        // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
    }
    Messaging.messaging().appDidReceiveMessage(userInfo)
    // Print full message.
    print(userInfo)
    completionHandler()
}
}

extension AppDelegate {
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String?) {
    let dataDict:[String: String] = ["token": fcmToken ?? ""]
    NotificationCenter.default.post(name: Notification.Name("FCMToken"), object: nil, userInfo: dataDict)
  }
}

关于Crashlytics

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关于Messaging 不要忘记如下配置，不然接收不到通知

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