title: Expandable Tree View in xamarin forms
body: <p>I want to make expandable tree view in android like below screen short 
  <a href="https://i.stack.imgur.com/mEz4e.png" rel="nofollow noreferrer">Expandable List View</a>.
  I have tried but i want it with explanation.
  Hope will get better solution.</p>
  
  <p>Thanks in advance.</p>