title: Dynamically Display Categories and sub-Categories onItemClick
body: <p>I'm working on an android application, and now i have to diplay a list of categories, sub-categorie, sub-sub-categorie .... n-sub-categories,  like this:</p>
  
  <p><img src="https://i.stack.imgur.com/9qSYz.jpg" alt="enter image description here"></p>
  
  <p>At the beggining i want to show the root categories -using a ListView-, and onInClick i want to start i new intent to a new layout, that will display the level 1 sub categories, and then when i click on  a itemp from sub-categories level 1, a new intent starts to open a new layout for sub-categories level-2, and so on unitil i have no sub categories to display, </p>
  
  <p><img src="https://i.stack.imgur.com/qw0oA.jpg" alt="enter image description here"></p>