title: Receiving FlexEvent.SHOW events in a ViewStack's grandchildren
body: <p>The direct children of a <code>ViewStack</code> receive a <code>FlexEvent.SHOW</code> once the respective child view is shown. Unfortunately, the event information is lost at deeper child levels so that the grandchildren of the <code>ViewStack</code> do not receive the <code>SHOW</code> event.</p>
  
  <p>Which approach would be advisable to tap into the <code>SHOW</code> events received by a <code>ViewStack</code>'s direct children from a grandchild or grand-grand-child?</p>
  
  <p>Using <code>parent.parent.[...].addEventListener(FlexEvent.SHOW, [...])</code> would be possible, of course, but is kind of ugly as it will break as soon as the number of hierarchy levels between the two components changes.</p>
  
  <p>Are there other events that are better suited?</p>
  
  <p>The background of my question is that I would like to reload the grandchildren's content when it becomes visible again.</p>