title: ListView with headers (LongListSelector) for Xamarin.Forms
body: <p>I'm looking for a view known as <code>LongListSelector</code> on the Windows Phone. It's a list view with group headers. Tapping a group header displays only a list of groups. Tapping a group on the list of groups hides the list of groups and scrolls the view to the selected group. It's a very useful way of groupping long lists with easy navigation between groups. If there are alternatives fit for the same purpose that would be also great.</p>
  
  <p><img src="https://i.stack.imgur.com/gj7ZW.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/NikV8.png" alt="enter image description here"></p>