Update badge with push notification while app in background

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I have got push notification working and managed to update icon badge count when app is brought to foreground.

I am a bit confused about this though...the iPhone receives the notification and the pop up message appears to activate my app, and the badge only updates after me starting the app.

This does not sound right in terms of user experience. My understanding is that the badge count should notify the user of what needs action, through incremented count, but this doe not happen until a later stage when the app is live.

So is there a way to tell the app to update its badge count when it receives push notifications and whilst being in the background?

Note that my app does not use location and that I have UIRemoteNotificationTypeBadge in the notification registration request.

Cheers AF

Since push notification are handled by iOS and not your app you can't change the application badge on receiving a push notification.

But you can send the badge number in the payload of the push notification, but the you will have to do the calculation server side.

You should read Local and Push Notification Programming Guide and especially the The Notification Payload.

The payload could look like this:

{
    "aps" : {
        "alert" : "You got your emails.",
        "badge" : 9
    }
}

Now the app application badge icon will show 9.

How to increment push notification badge counter when app is in the , I am building an app with expo and when i send a notification to a target device i need to How to increment push notification badge counter when app is in the background ? At the same time the user downloads the messages in the app, the app also receives an updated count of the unread messages. and when the app is in the background/closed the push notification banner shows and works perfectly but I'm trying to update the badge number using the badge key in the notification object. This comment has been minimized.

We can alter the badge number when we are in the background state by sending the "badge" parameter in the push notification package. As @rckoenes pointed out the JSON parameter for the badge must be an INTEGER.

Sample PHP code for doing the same

// Create the payload body
$body['aps'] = array(
        'alert' => $message,
        'badge' => 1,
        'sound' => 'default'
        );

badge => 1 where 1 is an integer not a string (i.e. without apostrophes)

Pushing Background Updates to Your App, Deliver notifications that wake your app and update it in the background. a remote notification that doesn't display an alert, play a sound, or badge your app's  10 Answers 10. Since push notification are handled by iOS and not your app you can't change the application badge on receiving a push notification. But you can send the badge number in the payload of the push notification, but the you will have to do the calculation server side.

Actually in iOS 10 a remote Notification will call automaticly didReceiveRemoteNotification Method in your AppDelegate.

You have 2 ways of updating the badge count in the background. I've done this for my current app also. You don't need a Notification Service Exetension eithier.

1st Way

Send APS badge key with your payload to APN. This will update the badge count according to your Integer value in your payload of badge. e.x.:

// Payload for remote Notification to APN
{
    "aps": {
        "content-available": 1,
        "alert": "Hallo, this is a Test.",
        "badge": 2, // This is your Int which will appear as badge number,
        "sound": default
    }
}
2nd Way

You can switch your application.applicationState and update your badges Count when the applicationState is in .background. BUT you have to take care not to set the badge key parameter in your Notification payload when sending to APN e.x.

// Payload to APN as silent push notification
{
    "aps": {
        "content-available": 1
    }
}
Handle the badge Update accordingly to the application state

Here is my working code for badge count update without badge key in the payload for APN.

func application(_ application: UIApplication, didReceiveRemoteNotification 
   userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    print("APN recieved")
    // print(userInfo)

    let state = application.applicationState
    switch state {

    case .inactive:
        print("Inactive")

    case .background:
        print("Background")
        // update badge count here
        application.applicationIconBadgeNumber = application.applicationIconBadgeNumber + 1

    case .active:
        print("Active")

    }
}
Reset badge count

Don't forget to reset your badge count when your app gets back to active state.

func applicationDidBecomeActive(_ application: UIApplication) {
    // reset badge count
    application.applicationIconBadgeNumber = 0
}

Update badge with push notification while app in background, So is there a way to tell the app to update its badge count when it receives push notifications and whilst being in the background? Note that my app does not use​  For a push notification to trigger a download operation, the notification’s payload must include the content-available key with its value set to 1. When that key is present, the system wakes the app in the background (or launches it into the background) and calls the app delegate’s application:didReceiveRemoteNotification:fetchCompletionHandler: method.

    **This is the APNS payload get back from server.**

    {
        "aps" : {
            "alert" : "You got your emails.",
            "badge" : 9,
            "sound" : "bingbong.aiff"
        },
        "acme1" : "bar",
        "acme2" : 42
    }

The value for key badge is automatically considered as badge count.On ios app side no need to calculate or handle the count. In above example 9 is the badge count.So your app icon will show 9.

NOTE While your app is close u can't handle badges on your own.Thats why we are using badge key from APNS Payload For better clarification about notification see documentation

if you want to reduce the badge count on your own.Decrement the count and update it yourself.as follows

Is it possible to update the badge number when app gets a push , and when the app is in the background/closed the push notification banner shows and works perfectly but I'm trying to update the badge  Notification messages are handled by the client library when the app is in the background resulting in a displayed notification. If that notification message had an accompanying data payload it will be available in the extras of the intent launched as a result of the user tapping on the notification.

If you are using NotificationServiceExtension the you can update badge in that.

var bestAttemptContent : UNMutableNotificationContent? // 
bestAttemptContent.badge = 0//any no you wanna display

Every time your application receive notification your service extension will be called.Save that value in user default and display it. To share user defaults between application and extension you need to enable app group in application. Read more here

Multiple scenarios with Push Notification in iOS - Fantageek, I have got push notification working and managed to update icon badge count when app is brought to foreground. I am a bit confused about this  Your app requests a push notification channel from the Universal Windows Platform. Windows asks WNS to create a notification channel. This channel is returned to the calling device in the form of a Uniform Resource Identifier (URI). The notification channel URI is returned by Windows to your app.

Handling iOS Push Notifications: The Not So Apparent Side, Here are my notes for working with Push Notification, updated for iOS 9 play sounds, or badges its icon, you must call this method during your launch cycle to calls this method when your app is running in the foreground or background. Hi there. I've problem with updating badge number. on iOS, appIcon badge number automatically updated everytime when I get push notification even the app is in background or closed. but on Android, appIcon badge number is only changed wh

Everything you've always wanted to know about notifications in iOS, Since push notifications have been around for quite a while, this app to be launched in the background in response to a notification “alert”, “badge”, “​sound” then the push notification will be ignored. want to update your interface in response to a notification if your app wasn't running when it arrived. Hi Paulo Alexandre, I have fallow some other code for getting push notifications when app is not running on background it's working fine but When I test in 'VIVo' company android version 7.1 I doesn't get any notification. I have testing in android version 7.0 also it's working fine.

Incrementing the badge in an iOS app - General, Remote notifications — you use one of your company's servers to When the app is in foreground while the notification is delivered, we content-available — To support a background update notification, set We cannot modify silent notifications or those that only play a sound or badge the app's icon. Additionally, for users with Push enabled, you may send a silent Push notification which will update the badge count when the app is in the background. To do so, ensure you have properly integrated Push messaging .

Comments
  • Do you want to show badge on app icon?
  • I am displaying count on tabs. And facing same issue. When app is in background count not increasing. How can I set?
  • I am already doing that...but this value is retrieved only when my app is brought to the foreground, which i later use to update the badge value using [UIApplication sharedApplication].applicationIconBadgeNumber = count;
  • No you need to set the badge number in the push notification payload.
  • I had another look at my payload structure and it seems I was passing the value of the badge parameter as a string '4' rather than an int 4!!! Now i got it working...thanks for the help
  • I tested it doesn't work when change on payload structure badge
  • @wod what do you mean with: change on payload structure badge.
  • How do you update badge if the app is not running in background?
  • If you send the APS with content-available key it will run the didReceiveRemoteNotification Method regardless of the state of the app. Just try it out with a native Device. If you are on iOS you can use this tool to send your JSON Object to APN: github.com/noodlewerk/NWPusher
  • you can save that notification count on server and send that with notification.
  • I use Firebase Cloud Messaging, do you know how can do it?
  • Why are you using intValue instead of integerValue which is an NSInteger? @property (readonly) NSInteger integerValue NS_AVAILABLE(10_5, 2_0);
  • the purpose of content-available = 1 is silent notification not for badge.
  • That won't work until the user taps on the app or the notification to launch the app. It will not do what the OP wants, to update the badge when the app is in the background and before the user has interacted with the app or the notification.