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TouchControlOverlay is a small utility library that is used to convert touch screen input into other forms of input. The main goal is to provide a convenient way to port applications originally written for other input setups onto a touchscreen device like a PlayBook.
Here's a quick guide on how to use it in your own application.
Check out the source for TouchControlOverlay. The library is effectively standalone and should build as a NDK project.
Create your control descriptor file - This should be created in your application and packaged as an asset.
Add any images that are referenced by the descriptor file as assets.