title: Change size of rectangle by dragging its corners in Android?
body: <p><a href="http://farm3.anhso.net/upload/20110221/12/o/anhso-121531_example.jpg" rel="nofollow noreferrer">http://farm3.anhso.net/upload/20110221/12/o/anhso-121531_example.jpg</a></p>
  
  <p>Here is the examples, when you drag A or B , the size of rectangle will be changed</p>
  
  <p>How can i do it?</p>