http://stackoverflow.com/questions/6789283/set-text-over-an-imageview
http://stackoverflow.com/questions/5777749/how-to-set-text-over-an-imageview
http://stackoverflow.com/questions/5242951/android-text-over-image
http://stackoverflow.com/questions/2739971/overlay-two-images-in-android-to-set-an-imageview
http://stackoverflow.com/questions/11658437/android-best-way-to-overlay-an-item-in-an-imageview