title: how do I get an Android view to take up "remaining" space?
body: <p>I have an activity that has a header at the top of the screen, some button elements at the bottom of the screen and then I'd like to devote the middle (whatever is left over) to a scroll view.</p>
  
  <p>I know how to do everything except for how to assign a height to the ScrollView that would take into account what is above and below it and then take residence in between.</p>
  
  <p>Would love to see an XML sample for how to accomplish this effect.</p>
  
  <p>TIA</p>