ForPlay - Backdrop class
Link to download the class file:
http://prsolucoes.com/downloads/forplay/Backdrop.java
How to use:
Image bgImage = assetManager().getImage("images/background.png");
GroupLayer backLayer = graphics().createGroupLayer();
Backdrop backdrop = new Backdrop(backLayer, bgImage, true, false, 2F);
graphics().rootLayer().add(backLayer);