NotificationContent.Badge
From Xojo Documentation
Property (As Integer )
aNotificationContent.Badge = newIntegerValue
or
IntegerValue = aNotificationContent.Badge
New in 2020r2
Supported for all project types and targets.
or
IntegerValue = aNotificationContent.Badge
New in 2020r2
Supported for all project types and targets.
The number that should appear on the app icon when the notification is presented.