title: Creating Xamarin App with overlay over other Applications
body: <p>I'm trying to create a xamarin android app which should have a small overlay window which is displayed above other apps.</p>
  <p>I have not found sample code or documentation whatsoever unfortunately.</p>
  <p>What I am trying to achieve is something similar to the Apple Control Dot, the Facebook chat-dot or the google maps navigation overlay.</p>
  <p>I also have a simple makro recorder app installed on my phone which can do this given the accessibility permission &quot;Draw on top of other Apps&quot; is enabled.
  <a href="https://i.stack.imgur.com/a3OyP.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a3OyP.jpg" alt="sample overlay window" /></a></p>
  <p>In the above screenshot you can see the small recording control on the right. The control overlay can be dragged around the screen, settings opened etc.</p>
  <p>Anyone an Idea on how to do that?</p>
  <p>Best regards,</p>
  <p>Julian</p>