title: QT/QML Android: How to keep an app running when the last windows is closed?
body: <p>I am developing a work order app for team works on the field. This app listens to server for work order. </p>
  
  <p>I want this particular processing :</p>
  
  <ul>
  <li>When I close the last window, my app must run in background. </li>
  <li>Then, if my app catches a work order, it should give the user a notification. </li>
  <li>Then the user touches the notification : the program must re-open. </li>
  </ul>
  
  <p>How can I achieve that?</p>