问题
Possible Duplicate:
android multitouch image zooming?
how to implement pinch zooming on a Imageview, programmatically created in android ?
回答1:
See this : http://vivin.net/2011/12/04/implementing-pinch-zoom-and-pandrag-in-an-android-view-on-the-canvas/
and How can I get zoom functionality for images?
also see : http://androidtrainningcenter.blogspot.se/2012/04/pinching-zoom-in-android-image-view-or.html
and : http://www.mysecretroom.com/www/programming-and-software/android-multi-touch-handling
来源：https://stackoverflow.com/questions/11049264/how-to-implement-pinch-zooming-on-a-programmatically-created-imageview-in-andro