Updating iOS Badge Without Push Notifications

Update badge with push notification while app in background

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.

Updating iOS badge without push notifications

Try this

[[UIApplication sharedApplication] setApplicationIconBadgeNumber:1];

To do this through local notifications you have to set the value in applicationIconBadgeNumber

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
localNotification.applicationIconBadgeNumber = 1;// set here the value of badge

Is it possible to update badge number on app icon without openining app on push notification in iOS?

You need to set a value for the badge key in your push notification payload. Payload Notification

The payload contains information about how you want to notify the user, such as using an alert, badge or sound. It can also contain custom data that you define.

To remove the badge, set the value of this property to 0.

iOS Push Notifications - update badge without alert?

You can do it.
It is possible to send a push notification without an alert.
You can even register your application just to badge notifications, in which case the provider server won't even be able to send alerts or sounds.

The Notification Payload

Each push notification carries with it a payload. The payload
specifies how users are to be alerted to the data waiting to be
downloaded to the client application. The maximum size allowed for a
notification payload is 256 bytes; Apple Push Notification Service
refuses any notification that exceeds this limit. Remember that
delivery of notifications is “best effort” and is not guaranteed.

For each notification, providers must compose a JSON dictionary object
that strictly adheres to RFC 4627. This dictionary must contain
another dictionary identified by the key aps. The aps dictionary
contains one or more properties that specify the following actions:

An alert message to display to the user

A number to badge the application icon with

A sound to play

Note that it says one or more of the properties. The alert property is optional. You can even send a notification with an empty aps dictionary (i.e. send only custom properties).

Example 5. The following example shows an empty aps dictionary;
because the badge property is missing, any current badge number shown
on the application icon is removed. The acme2 custom property is an
array of two integers.

{

    "aps" : {

    },

    "acme2" : [ 5,  8 ]

}

The only alert the user will see it the alert that asks him/her whether to allow push notifications. That alert will only be displayed the first time the app is launched after installation.

In this example you register to non alert notifications (badges and sounds only) :

Listing 2-3  Registering for remote notifications

- (void)applicationDidFinishLaunching:(UIApplication *)app {

   // other setup tasks here....

    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];

}



// Delegation methods

- (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)devToken {

    const void *devTokenBytes = [devToken bytes];

    self.registered = YES;

    [self sendProviderDeviceToken:devTokenBytes]; // custom method

}



- (void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err {

    NSLog(@"Error in registration. Error: %@", err);

}

All quotes are taken from the Apple Local and Push notifications programming guide.

How IOS apps like Gmail update(decrement) badge counter without push notificatons

On iOS it doesn't matter if the app is killed or not to receive a push notification (btw, that's why they are push notifications). In order to update the badge number, you can send the Background Notification (silent notification), which wakes your app so that your app can update, fetch new content.

Read the Docs

application badge icon not updated when push notification arrives

Finally this issue is solved. It is true that no one action triggered when app is in background. so didReceiveRemoteNotification method in appDelegate also not triggered when app is in background.

The application badge icon is set by iOS when any new push notification arrives in the device. The payload is same as @rahulPatel says. I do little change in that as BADGE_COUNT is fetched from database, though it is INTEGER but consider as string and string is not taken by iOS thats why my app's badge icon is not updated when notification arrives. Now my code from server side becomes like this :

$badges=(int)$cntmsg;

$body['aps'] = array(
                'alert' => $message,
                'sound' => 'default',
                'badge' => $badges
                //'msg_id'=> $msg_id
            );

so By changing count msg as (int) it solved my issue. Thanks.

Reset or clear iOS app badge without any app interactions like open the app or push notification

You can schedule local notification for end of day with badge count equal 0. Check this out Updating iOS badge without push notifications

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