How do I get a ListView to draw over its list items?

How do I get a ListView to draw over its list items?

I have extended ListView such that I can have a fast scroller. In the
onDraw method I draw a rectangle with lettering along the right edge of
the list, and if you are actively sliding your finger up and down I render
the current letter in the center of the view. The problem is the list
items render on top. Not idea. I am looking for the best way to render my
background, then my list items, then my foreground.