title: How to change the font size of selected text in edittext at runtime?
body: <p>I am developing a text editor for my application, in which i want to edit the selected portion of text. And i am almost done with it except one feature, that to decrease the size of selected text.</p>
  
  <p>I could increase the size like : 
  <code>text=editor.getText();
  text.setSpan(new RelativeSizeSpan(2f), start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
  editor.setText(text);</code></p>
  
  <p>But i am stuck with decreasing the size, How the size of text can be decreased ?</p>