How to know which overlayitem is being tapped?
<p>currently I used a map view and placed some overlay items in them</p>

<p>I overiden the onTap function in ItemizedOverlay so that when user tap on the markers icons on the map, some action will perform.</p>

<p>However, I don't know how to know which marker is being tapped so that the related data of the item will be displayed in the screen. How can I do that?</p>

<p>Thanks!!!</p>
