title: How to hide android's bottom navigation bar in flutter
body: <p>I'm really new in flutter and also in Android dev, but is it possible to hide the bottom navigation bar (see which item do i mean below) programmatically?</p>
  
  <p><a href="https://i.stack.imgur.com/GrhI3.png" rel="noreferrer"><img src="https://i.stack.imgur.com/GrhI3.png" alt="enter image description here"></a></p>