title: Ionic collection-repeat with date dividers
body: <p>I got a very large list of about 200 items with text and images. <code>ng-repeat</code> is way to slow to render this smoothly. It tried it with this <a href="https://stackoverflow.com/questions/26712458/angular-list-with-ng-repeat-with-date-as-divider">solution</a>. Works nice. But not with collection-repeat. </p>
  
  <p>My web-service return this:</p>
  
  <p><a href="https://i.stack.imgur.com/YHS7S.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YHS7S.png" alt="enter image description here"></a></p>
  
  <p>There are events with specific dates. The events should be grouped by date. So in order to use collection repeat, how is it possible to insert dividers, if you cant use angular.filter groupBy?</p>