我试图在我的应用程序上实现firebase云消息。
我使用以下代码注册通知

  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)
        }

当应用程序位于后台时,一切工作正常,但当应用程序位于前台时,根本不调用didReceiveMemoteNotification。
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    // Print message ID.
    print("please help")
    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
    }

    // Print full message.
    print(userInfo)
    completionHandler(.newData)
}

有人知道这个可能出错吗?谢谢!
编辑:当应用程序在前台时,我不需要看到通知显示,我只想处理来自通知的消息

最佳答案

iOS 10.x有一个新的函数,在前台处理推送通知,您应该实现这个函数:

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {

    completionHandler(
        [UNNotificationPresentationOptions.alert,
         UNNotificationPresentationOptions.sound,
         UNNotificationPresentationOptions.badge])

 }

10-08 04:16