title: Android sidebar
body: <p>I've been using firefox for Android and really like the use of the sidebar to hold shortcut icons and the like.  How would I go about creating a similar bar myself with the following attributes:</p>
  
  <ol>
  <li>progressively revealed as I swipe in one direction </li>
  <li>progressively hides as I swipe in the other direction</li>
  <li>can be a custom width</li>
  <li>I can dynamically inject layout in to it or it can hold static content</li>
  </ol>
  
  <p>Is there any open source code available?  If not, what approach would I use to create this?</p>