如何在UserDefault中存储推送通知警报消息？

I want to build an app that I can receive push notification and save inside client device for limit 25 Notification. If application running and may not running. How can I stored PushNotification alert message?. If app running that time arrived Notification alert message stored in UserDefault but when app in background or Inactive state that time not stored Notification alert message in UserDefault. I want to know that I need to use UserDefault or CoreData to store the Push Notification message inside client app or not? If it is not, what should I use? I really need a hand to pick me up.

我想构建一个应用程序,我可以接收推送通知并保存在客户端设备内以获得限制25通知。如果应用程序正在运行,可能无法运如何存储PushNotification警报消息?如果运行该时间的应用程序到达存储在UserDefault中的通知警报消息,但是当应用程序处于后台或处于非活动状态时,该时间未在UserDefault中存储通知警报消息。我想知道我需要使用UserDefault或CoreData在客户端应用程序中存储推送通知消息吗?如果不是,我该怎么用?我真的需要一只手来接我。

Please Help. Thanks.

请帮忙。谢谢。

2 个解决方案

#1

STEP 1:

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool
     {
         requestUserPermissions(application: application)
         if let notification = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [String: AnyObject]
            {
                let info : NSDictionary! = notification as NSDictionary
                if info != nil
                {
                    getDataFromNotification(userInfo: info as! [AnyHashable : Any])
                    Alert.showAlert((self.window?.rootViewController)!, message: "App is terminated", strtitle: "Notification")
                }
            }
            return true
    }

STEP 2:

func requestUserPermissions(application: UIApplication)
    {
        if #available(iOS 10.0, *)
        {
            let center = UNUserNotificationCenter.current()
            center.delegate = self
            center.requestAuthorization(options:[.badge, .alert, .sound])
            {
                (granted, error) in

                if( !(error != nil) )
                {
                    application.registerForRemoteNotifications()
                }
                // Enable or disable features based on authorization.
            }

        }
        else {
            // Fallback on earlier versions
            if (!application.isRegisteredForRemoteNotifications)
            {
                application.applicationIconBadgeNumber = 0
                application.registerForRemoteNotifications()
            }
        }

STEP 3:

@objc(userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler:) @available(iOS 10.0, *)
    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void)
 {

       print("Userinfo1 \(response.notification.request.content.userInfo)")
        getDataFromNotification(userInfo: response.notification.request.content.userInfo)
        Alert.showAlert((self.window?.rootViewController)!, message: "I am in Background", strtitle: "Notification")
    }
      @objc(userNotificationCenter:willPresentNotification:withCompletionHandler:) @available(iOS 10.0, *)
        func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
        {
           print("Userinfo2 \(notification.request.content.userInfo)")
            getDataFromNotification(userInfo: notification.request.content.userInfo)
            Alert.showAlert((self.window?.rootViewController)!, message: "I am in forground", strtitle: "Notification")
        }

STEP 4:

func getDataFromNotification(userInfo: [AnyHashable : Any])
    {
        let info : NSDictionary! = userInfo as NSDictionary

        if info != nil
        {
            if let aps = info["aps"] as? NSDictionary
            {
               if let resultsDict =  aps as? [String:AnyObject]
             {
                for _ in resultsDict
               {
                let str = dictCleanData.value(forKey: "alert")!
                let time = dictCleanData.value(forKey: "day")!

                let dict = ["msg" : str, "time": time]

                UserDefaults.standard.set(dict, forKey: "dict")
                UserDefaults.standard.synchronize()

                  }
             }
           }
     }
}

STEP 5: TO check saved data on Other view controller

步骤5:检查其他视图控制器上保存的数据

 override func viewDidLoad()
 {
        super.viewDidLoad()

           if UserDefaults.standard.value(forKey: "dict") != nil
          {
             let dict : NSDictionary = UserDefaults.standard.value(forKey: "dict") as! NSDictionary

               arr_Veges.add(dict)

               if  UserDefaults.standard.value(forKey: "arr_Veges") != nil
               {
                  let arr = UserDefaults.standard.value(forKey: "arr_Veges") as! NSArray

                  for oldObj in arr
                  {
                    arr_Veges.add(oldObj)
                  }
               }

               UserDefaults.standard.set(arr_Veges, forKey: "arr_Veges")
               UserDefaults.standard.synchronize()
        }
}

#2

In my opinion you can use NSUserDefaults to store user related information. Push Notifications in your case. However, just a thought, you can simple append the notifications to local storage or a txt file on user device and remove the element as user accesses it.

在我看来,您可以使用NSUserDefaults来存储用户相关信息。在您的情况下推送通知。但是,只需考虑一下,您可以简单地将通知附加到本地存储或用户设备上的txt文件,并在用户访问时删除该元素。

But this will only work when user is using the app. In case you want to make this work even when the app is not working, you need to make a backend and store these data in some kind of cloud database. You can extract the records from data and push again to NSUserDefaults or local txt file when the app is turned on again.

但这仅在用户使用该应用程序时才有效。如果您想要在应用程序不工作时使其工作,您需要制作后端并将这些数据存储在某种云数据库中。您可以从数据中提取记录,并在再次打开应用程序时再次推送到NSUserDefaults或本地txt文件。

#1