title: Long click to begin selecting items in a ListView?
body: <p>My question is simple: How do I use long click to let the users select items from the <code>ListView</code> ? So far, I only know how to detect 'short' clicks and take appropriate actions.  </p>
  
  <p>Also, I would like to display a check mark on the selected item. How can that be done ?</p>