title: Add extra space to bottom of a GridView or ListView
body: <p>Is it possible to add extra space (kinda like an empty row) to the bottom of a GridView? </p>
  
  <p>I would like it so when you scroll down to the bottom of a GridView, there will be an extra 50dp of empty space. I tried setting <code>paddingBottom</code> to 50dp, but it didn't seem to change anything.</p>