Android: sliding and size-changing images?
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I am developing a photo library app on Android.  I want to add a feature that enables to **re-size** and **re-position** the images with **clicks and/or drag-and-drop**.  Yahoo! Finance App for iOS implements similar  feature, except that they are showing the [stock quotes with stock price, graphs, news, etc][1], rather than images.

Is the API for this feature available? Could any one of you show me the source code?

Thanks!




  [1]: http://www.appsnews.org/wp-content/uploads/2010/07/yahoo-finance1.jpg