title: Conditional widget visibility in layout XML
body: <p>I'd just like to ask if it's possible for widgets to have conditional visibility within the layout XML?</p>
  
  <p>Specifically, I have 2 layouts that each have a ListView.  I've also implemented a custom layout for the list items.</p>
  
  <p>The custom list item layout has 3 buttons, however, for one of the activities, one of the buttons isn't relevant and must be removed/hidden.</p>
  
  <p>Is it possible to accomplish this in the layout XML?  I'd really rather not create another custom list item layout just to remove one button for one activity.</p>
  
  <p>Thanks in advance.</p>