title: Creating a menu overlay in Xamarin Forms
body: <p>I'm relatvively new to xaml and xamarin forms. So far, I find it pretty powerful but my lack of experience and inability to find some samples of what I'm trying to do is bringing me here.</p>
  
  <p>So I have a listview, when "tapping" the item, I would like to have a "popup" listing me available options (maybe having the options in an other listview).</p>
  
  <p>What would be the best approach, either in code or xaml, to get a control to show on top a current listview and allow user to select an option?</p>
  
  <p>The challenge is obviously not to reacting to selecting an option (I know how to do that). The challenge is to have a control appearing on top of another control until it is dismissed, or clicked outside. I know there is the picker control that does something a little similar but it doesn't offer control on the content as well as positioning (unless I missed something).</p>
  
  <p>My listview, over which I want the list of options to appear, is inside a stack layout, that is inside a simple content page.</p>
  
  <p>Thanks for your help.</p>