title: android edittext onchange listener
body: <p>I know a little bit about <code>TextWatcher</code> but that fires on every character you enter. I want a listener that fires whenever the user finishes editing. Is it possible? Also in <code>TextWatcher</code> I get an instance of <code>Editable</code> but I need an instance of <code>EditText</code>. How do I get that?</p>
  
  <p><em><strong>EDIT</em></strong>: the second question is more important. Please answer that.</p>