title: Is it possible to have the last item in a RecyclerView to be docked to the bottom if there is no need to scroll?
body: <p>I'm building a shopping cart RecyclerView that displays all the items in the cart in a RecyclerView, as well as it has an additional view at the bottom that summarizes the cart (total owing, coupon discount if applicable, etc).</p>
  
  <p>If there's > 3 items in the cart, it looks fine as the user will have to scroll to the bottom to view the "summary view".  However, if there's 1 or 2 items, the first items appear, than the summary view, then whitespace.  I'd rather the first items, then whitespace, then the summary view.  </p>
  
  <p>I've tried adding empty items, however, depending on the device's resolution, it looks inconsistent.</p>
  
  <p>Current appearance if less than 3 items (ie if no scrolling required): </p>
  
  <pre><code>-----------
  |  Item1  |
  | ------- |
  |  Item2  |
  | ------- |
  | Summary |
  | ------- |
  |         |
  |         |
  |         |
  |         |
   ----------
  </code></pre>
  
  <p>Desired appearance: </p>
  
  <pre><code>-----------
  |  Item1  |
  | ------- |
  |  Item2  |
  | ------- |
  |         |
  |         |
  |         |
  |         |
  | ------- |
  | Summary |
   ----------
  </code></pre>