title: How to display RefreshIndicator at top with ListView.builder reverse:true
body: <p>I'm building a simple messaging system, where the user will see a list of messages.</p>
  
  <p>I have a ListView.Builder with reverse:true since I want the list to appear at the bottom when they load the messaging page.</p>
  
  <p>When they pull down to scroll all the way to the top I want a refresh indicator to appear so they can load previous messages, like most popular chat applications do.</p>
  
  <p>However due to having reverse:true on the list they have to pull up at the bottom of the screen to load previous messages while using a RefreshIndicator.</p>
  
  <p>Is there a way to make the RefreshIndicator trigger when pulling down rather than up when using reverse:true?</p>