What you are showing is the same behavior as the SMS stock application. Search for the code here to see how it’s done.
EDIT:
The code should be in platform_packages_apps_mms. Take a look at the RecipientsEditor class.
What you are showing is the same behavior as the SMS stock application. Search for the code here to see how it’s done.
EDIT:
The code should be in platform_packages_apps_mms. Take a look at the RecipientsEditor class.