iOS Swift Receive Push Notification When App in Foreground

Question

Here is the code that I have used to receive push Notification when app in foreground

@available(iOS 10.0, *)
func userNotificationCenter(center: UNUserNotificationCenter, willPresentNotification notification: UNNotification, withCompletionHandler completionHandler: (UNNotificationPresentationOptions) -> Void)
{
     completionHandler([UNNotificationPresentationOptions.Alert,UNNotificationPresentationOptions.Sound,UNNotificationPresentationOptions.Badge])
}

But my problem is that my notification contains [NSObject : AnyObject] values. How to receive like background notification

I am using "notification.request.content.userInfo" to get data. You can print this in above method. — Amanpreet, Dec 27 '16 at 07:09
@iOS_devloper If it solved the post, you should add that in as the answer (plus a few more details if you have them). Cheers! — AL., Dec 28 '16 at 02:42

Kavin Kumar Arumugam · Accepted Answer · 2017-09-25T06:13:31.930

8

Add this code in AppDelegate.swift file.

@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
    completionHandler([UNNotificationPresentationOptions.alert,UNNotificationPresentationOptions.sound,UNNotificationPresentationOptions.badge])
}

edited Sep 25 '17 at 06:13

answered Apr 21 '17 at 06:55

Kavin Kumar Arumugam

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how to write this in iOS 8.0 @Kavin Kumar Arumugam – Dilip Tiwari Sep 22 '17 at 07:11
@DilipTiwari there is no changes in above code, it already supports iOS 8.0 – Kavin Kumar Arumugam Sep 25 '17 at 06:15
ok so it will show notification in foreground also @Kavin Kumar Arumugam ? – Dilip Tiwari Sep 25 '17 at 06:37
can you tell me your firebase version @DilipTiwari – Kavin Kumar Arumugam Sep 28 '17 at 05:35
i m receiving in ios 10 but not in ios 8 @Kavin Kumar Arumugam – Dilip Tiwari Sep 28 '17 at 05:40
can we talk in a group chat @kavin kumar arumugam – Dilip Tiwari Sep 28 '17 at 06:21
this is my code https://paste.ofcode.org/a3fEwUmYi7bQPYG7WHHgjA @Kavin Kumar Arumugam – Dilip Tiwari Sep 28 '17 at 06:25
Little busy now will see and update your code by evening @DilipTiwari – Kavin Kumar Arumugam Sep 28 '17 at 06:29
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/155479/discussion-between-dilip-tiwari-and-kavin-kumar-arumugam). – Dilip Tiwari Sep 28 '17 at 06:30

score 1 · Answer 2 · answered Dec 27 '16 at 07:09

1

 func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {

   if (application.applicationState == 0) // active --- forground
    {
       // publish your notification message
    }

}

answered Dec 27 '16 at 07:09

Sofeda

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score 1 · Answer 3 · answered Dec 27 '16 at 07:15

your app won't be able to run any code unless the user open the push notification, push notifications are handled by the OS and your app have no control on them while it's not active or in the background you should take a look https://developer.apple.com/library/content/documentation/Performance/Conceptual/EnergyGuide-iOS/OptimizeVoIP.html

score 1 · Answer 4 · answered Dec 28 '16 at 07:41

1

UNNOtification has property request (UNNotificationRequest), you can use that to get user info.

use following to access user info from UNNotification:

let userinfo =  notification.request.content.userInfo

answered Dec 28 '16 at 07:41

PlusInfosys

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score 0 · Answer 5 · answered Mar 18 '21 at 08:43

  func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void)
{
    debugPrint("Received when is visible... :): \(userInfo)")
    

    guard let aps = userInfo["aps"] as? [String: AnyObject] else {
        completionHandler(.failed)
        return
      }
    
    let alert:Dictionary<String,String> = aps["alert"] as! Dictionary<String,String>

    let title:String = alert["title"]!
    let msg:String   = alert["body"]!
    
  
    let refreshAlert = UIAlertController(title: title, message: msg, preferredStyle: UIAlertController.Style.alert)
    
    refreshAlert.addAction(UIAlertAction(title: "Ok", style: .default, handler: { (action: UIAlertAction!) in
         
        refreshAlert.dismiss(animated: true, completion: nil)
      
    }))


    UIApplication.shared.windows.first!.rootViewController?.present(refreshAlert, animated: true, completion: nil)
 
}

iOS Swift Receive Push Notification When App in Foreground

5 Answers5