IPhone- marking an icon or button with a number to indicate new activity like mail app
<p>I am wanting to display a number on top of an icon when a user receives a new message, similar to the mail app and sms app when new messages are received (the red number on top of the icon) (btw i want to do it inside my app not on the icon on the home screen)... I know i  can just have a  little image with every number and draw it on top of an icon or button, but i was wondering if there was any built in API that can do this already? </p>

<p>Thanks</p>

<p>Daniel</p>
