title: How to implement a material design circular progress bar in android
body: <p>I want to make a material design circular progress bar like the one in Inbox by Gmail android app. How do I achieve this (in pre-lollipop devices)?</p>
  <p>Am trying to achieve a similar effect like this.
  <a href="https://drive.google.com/file/d/0B2WfHQxy1J_Ob29NNlpkbFJjaWc/view?usp=sharing" rel="noreferrer">Inbox by Gmail material design circular progress bar</a></p>