title: How to implement this time picker UI in Flutter?
body: <p>I am been trying to implement this time picker UI. I used SingleChildScrollView() to implement the scrolling but I am not getting it how to retrieve the data which user selects.</p>
  <p>I used NotificationListener() but it is only notifying me where user is starting and ending the scrolling.</p>
  <p>I want to retrieve the value where user stops. How to do that ? Click link to view UI.</p>
  <p><a href="https://i.stack.imgur.com/BmdNB.gif" rel="nofollow noreferrer">enter image description here</a></p>