title: Knowing when Edit text is done being edited
body: <p>How do I know when my edit text is done being edited? Like when the user selects the next box, or presses the done button on the soft keyboard.</p>
  
  <p>I want to know this so I can clamp the input. It looks like text watcher's afterTextChanged happens after each character is entered. I need to do some calculations with the input, so I would like to avoid doing the calculation after each character is entered.</p>
  
  <p>thanks</p>