title: Play & pause a Flutter animation
body: <p>I was trying to add a button to this page that will (play or pause) the waves animation in the background.
  code link: <a href="https://github.com/apgapg/flutter_profile/blob/master/lib/page/intro_page.dart" rel="noreferrer">https://github.com/apgapg/flutter_profile/blob/master/lib/page/intro_page.dart</a></p>
  
  <p>I've tried many things but since I still bad with flutter animations I still without result.</p>
  
  <p>Thanks in advance.</p>