title: How to make scrolling counter in flutter
body: <p>I would like to create a scrolling counter and I'm wondering on how to implement this in flutter.</p>
  
  <p><a href="https://i.stack.imgur.com/lG2Ez.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/lG2Ez.gif" alt="enter image description here"></a></p>