title: Check for navigation bar
body: <p>I am trying to check to see whether the android navigation bar is present on load so that I can adjust a layout accordingly, does anyone have any suggestions?</p>
  
  <p>This is the navigation bar I am trying to detect:
  <img src="https://i.stack.imgur.com/N63wE.png" alt="enter image description here"></p>
  
  <p>P.S. All I have found so far are 'bad' ways to try and remove the bar, which I dont want to do.</p>