Image viewer with drag/zoom and operations on the image?

[HaoZhe Xu]

Hi, I need to display an image(a map), and allow users to drag and zoom, also, when user clicks on an area on the map, information of that area is displayed. I wonder is there any standard way(such like imageview wrapped in an activity) of doing this, or do I have to create an activity that has imageview in it? I searched and read some of others questions/answers, found that WebView is a good way to display image, but I need to do some operations on the image(map) like I said, is it possible for WebView?

Thanks!