title: How to randomize(or shuffle) order of Radio Buttons
body: <p>I want to randomize my radio buttons whenever I reopen my app.</p>
  
  <p>For example my layout is like below:</p>
  
  <pre><code>RBtn1
  Rbtn2
  Rbtn3
  Rbtn4
  </code></pre>
  
  <p>Now I want to shuffle them whenever I open that particular activity. How can I do this?</p>