title: Retrieve Key and Value From Firebase
body: <p>I have a Firebase database structure as shown. I am able to fetch value of key. But I want both key and value say displayed in Recyclerview.  </p>
  
  <pre><code> "itemprice" : {
  "-KJWAtjsgvjqaa9Xnb1R" : {
    "half" : "100",
    "one" : "200"
  },
  "-KJWBAihYrjaH5zJe62i" : {
    "half" : "50",
    "one" : "200"
  }  
  </code></pre>
  
  <p>Now I want to retrieve and show both key and its value (For example I want half and 100 to be retrieved. Also one and 200). How can I show it in my activity?</p>