title: is there any android dynamic treeview like c# devExpress treeview
body: <p>I want to create dynamic treeview. But the levels of tree unknown. it's up to database. 
  So expandable listview not work for me, 
  is there any treeview example like below type in android ?</p>
  
  <pre><code>A...
   -&gt;b...
   -&gt;b...
   -&gt;b...
      -&gt;c..
  
  A..
   -&gt;b..
      -&gt;c..
          -&gt;d..
          -&gt;d..
  </code></pre>