title: Draw "snake" like count down timer in android application
body: <p>I would like to draw a count down timer in android that looks a little like a growing "snake" (from the Nokia game in the 90s).  I can manage the count down timer side of the code but have no idea where to start with drawing the thin line around the outside of the screen that grows as the time counts down.</p>
  
  <p>I did wonder about making lots of little imageviews and then un-hiding them as the count down happened but that seems a really bad way of achieving what I want.</p>
  
  <p>Sorry for the vague question, but I have no idea where to start at all with this and need a steer in the right direction.</p>
  
  <p>Thanks;</p>
  
  <p>Andy</p>