Implementation demo for a footer container that sticks to the bottom of the screens accordingly to the size of a listView or any other scrolling view above it.
To see it working, check out the demo right away - http://www.youtube.com/watch?v=7RYDaRa3cjk
Try it in your phone installing it from Google Play - https://play.google.com/store/apps/details?id=com.ugia.listmovingcontainer
If you want further details, check here a brief explanation of the implementation - http://ugiagonzalez.com/2013/03/02/sticky-list-footer-for-android/
Other contributors: Antonio Consuegra, César Valiente, 6Wunderkinder