title: SAPUI5 get the current screen size
body: <p>At a specific point of my application I need to determine the current <a href="https://sapui5.hana.ondemand.com/#/api/sap.m.ScreenSize/properties" rel="nofollow noreferrer">screen size</a> (Desktop or Tablet). At least I would need the screen width but the sap.m.ScreenSize would be better. </p>
  
  <p>How can I do that? Thanks in advance! </p>