You can set badge count that shows the current number of unread notifications. The badge will appear on top right of the app icon on iOS. On Android it needs to be supported by OEMs. You can read more about badge counts on OneSignal website

You can set the badge count manually using the following Median JavaScript badge function

↔️Median JavaScript Bridge

JavaScript

median.onesignal.badge.set(2);

// this removes the badge
median.onesignal.badge.set(0);

🚧

Legacy Support

This method is not available on the legacy OneSignal plugin. To learn more about it see Legacy Mode

Frequently Asked Questions

How do I clear the push notification badge count on iOS?

App Groups capability is required for OneSignal to communicate with your app for clearing push notification badge count. You must add the App Groups capability to Main App Target and OneSignalNotificationServiceExtension Target.

For both Targets, set the App Groups container to be group.YOUR_BUNDLE_IDENTIFIER.onesignal where YOUR_BUNDLE_IDENTIFIER is the same as your Main Application "Bundle Identifier".

Detailed steps with screenshots are available on OneSignal's website at https://documentation.onesignal.com/docs/ios-sdk-setup#3-add-app-groups.