title: How to get length of first line in Edittext android?
body: <p>I have a multi lines Edittext with a text (don't content "\n"), a font size (sp) 
  and the length of text > Edittext.width().
  I want to get length of the first line in EditText.
  How can I do it?</p>
  
  <p><a href="http://i.stack.imgur.com/qGktV.png" rel="nofollow">You can see the photo</a></p>