another option is just keep the assets as SVG's and use a library to do the conv...

seltzered on May 27, 2015 | parent | context | favorite | on: Drawscript – convert Illustrator shapes into code

another option is just keep the assets as SVG's and use a library to do the conversion (ios/osx specifically, I personally use SVGKit - https://github.com/SVGKit/SVGKit )