I\'m trying to set my root LinearLayout element (which is set to fill_parent in both dimensions) to have a background image which is always located in the lower left corner
You'll have to create a custom bitmap drawable with your bitmap in an XML file (eg "res/drawables/my_drawable.xml"
And then set this drawable xml as your view's background ("@drawables/my_drawable"). The drawable XML format is very poorly documented in the Android site, though, so it's definitely not an easy problem to figure out how to solve on your own.