r2layout2 is a GUI layout system abstraction framework both for designers and for programmers. The UI components built on r2layout2, can run gracefully on any platform r2layout supports.
- Use r2layout to mockup a technical proof of concept.
- Use r2layout to give an evolution to the prototype so it become a well designed product.
The deprecated predecessor, r2layout, was a layout classes library for Android 4.0.