title: How to use ConstraintSet for animation in Android with Java?
body: <p>I find that there is a quick way to create animation with <code>ConstraintSet</code> for <code>ConstrainLayout</code> Activity. Faster than use <code>TransitionManager</code> for <code>RelativeLayout</code></p>
  
  <p><code>ConstraintSet</code> use two xml file for an Activity. One for the first position and next one for the destination.</p>
  
  <p>I want to create something like this:</p>
  
  <p><a href="https://media.giphy.com/media/2UwXdWEoLWe9iQMFIY/giphy.gif" rel="noreferrer">https://media.giphy.com/media/2UwXdWEoLWe9iQMFIY/giphy.gif</a></p>
  
  <p>But there is no clearly instruction show how to use it in Java. Anyone had done this can show me the source code or link to some post like that.</p>
  
  <p>Thanks for reading the post.</p>