title: How can a view detect when it's being attached to its parent?
body: <p>I have a View that needs to detect when it's being attached to its parent view. </p>
  
  <p>In a <code>ViewGroup</code> I have the <code>OnHierarchyChangeListener</code> which allows me to know when a child view is being added / removed, but I need the opposite thing.</p>