title: ConstraintLayout: square views, evenly distributed, autosized
body: <p>How can I use ConstraintLayout to get 5 evenly distributed squares, with <strong>flexible size</strong> depending on screen width?</p>
  
  <p><a href="https://i.stack.imgur.com/Kw9TW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Kw9TW.png" alt="enter image description here"></a></p>