Not really sure how to explain this but how can I make 2 fragments look like one is higher than the other as seen in this picture

as you can see the right edge of the listview looks like it is lower than the fragment to the right. How can this be accomplished? I am trying to make my layout not look so one dimensional/flat.
I believe that this is actually done with a simple resource. The right side of the listview on the left has a simple drop shadow graphic attached to it. The graphic is repeated for each row that’s not selected (as you can see it’s replaced with arrow on the row that is) You can just pick a color and use the gradient tool in photoshop (or gimp or what ever). Fade that in over a few pixels and use that as your edge.