title: Firebase Android how to handle onChildAdded
body: <p>How to handle onChildAdded event in firebase android. 
  below is my database json structure</p>
  
  <pre><code> {
      message{
              "id"=10;
              "name"="xyz"
             }
   }
  
      public void onChildAdded(DataSnapshot dataSnapshot, String s) {
  
             // how can I handle the particular child that has added
          }
  </code></pre>
  
  <p>this method triggers when a new child is added to my reference node. But how can I get the value for the particular child with out typecasting </p>