title: Textview: adjust font size to match parent
body: <p>Is it possible to set <strong>font size</strong> to automatically <code>match_parent</code>?  </p>
  
  <p>My <code>TextView</code> is already <code>width/height="match_parent"</code> but the font size is small and doesn't fit to the parent size.  </p>
  
  <p>How to do that?</p>