title: Refresh Elements ListView QML
body: <p>Does anyone know how to force a refresh ListView in QML.
  The problem when I execute my program on a real device, I have buttons that multiply and I have to move the scroll barr so that they disappear.</p>
  
  <p>Yet I do not have this problem when I execute the program on Kdev.</p>
  
  <p>Thank you.</p>