title: view - looking for an event like on(View)Destroyed
body: <p>Is there any way to listen to such an event?</p>
  
  <p>I have a custom EditText, which shows a FragmentDialog if it is clicked to pick a time, distance or a number, depending on the EditText setup...</p>
  
  <p>Now I'm using event bus based FragmentDialogs in my whole application and I want to register the view on the bus and unregister it, if the view is destroyed...</p>
  
  <p>But I don't know, where I could unregister it...</p>