Text Highlighting
<p>I have created an expandable list successfully. Now I want to highlight the text/item that is clicked.When an item/text is clicked , it should change it's color.For example, on android developer site, when you go to API Guides, on the left sidepane ,when you click on any text/item , it's color changes.I want same thing for my expandable list.</p>

<p>Any help will be appreciated.</p>

<p>Thanks</p>
