title: Circular Progress with a floating action button
body: <p>I`m studing the new material design and I'm having some problems.</p>
  
  <p>I would like to know if some of you know how can I do a progress bar with the floating action button like this
  <a href="https://dribbble.com/shots/1644982-Animated-circle-loader-FAB-with-integration-gif">https://dribbble.com/shots/1644982-Animated-circle-loader-FAB-with-integration-gif</a></p>
  
  <p>Is there any api on Android L for this?</p>
  
  <p>Thanks</p>