title: Android navigation drawer with a single collapsing item
body: <p>I am using a custom navigation drawer in my application.
  The layout is a custom one.</p>
  
  <p>I have customed the layout this way,</p>
  
  <p><a href="http://www.tutecentral.com/android-custom-navigation-drawer/" rel="nofollow noreferrer">http://www.tutecentral.com/android-custom-navigation-drawer/</a></p>
  
  <p>I have used this link to use the code.</p>
  
  <p>But going forward, I have to customize it more this way, a particular item should have a collapsing tray,
  something like this<img src="https://i.stack.imgur.com/eghUG.png" alt="This app, has a particular item with a collapsing tray"></p>
  
  <p>And my req. is also the same, a particular item should be collapsable, 
  <img src="https://i.stack.imgur.com/Yl5RX.png" alt="This is what I want to acheive"></p>