title: Practical usage of ContentLoadingProgressBar
body: <p>I was going through developer site of android and I found a class named <strong><a href="https://developer.android.com/reference/android/support/v4/widget/ContentLoadingProgressBar.html" rel="noreferrer">ContentLoadingProgressBar</a></strong>. By seeing this class I come up with some questions in my mind. It would be great if someone answers my questions.</p>
  
  <ol>
  <li>What is the difference between Normal <code>ProgressBar</code> and <code>ContentLoadingProgressbar</code>?</li>
  <li>What is the practical usage of ContentLoadingProgressBar?</li>
  <li><p>Can we show/hide this progressbar according to our requirement?</p></li>
  <li><p>How can I custom style this progressBar?</p></li>
  </ol>
  
  <p>Thanks for your help in Advance. It would be great if someone explain it using codes and examples. Thank you.</p>