Difference between "ConstraintLayout for android" and "Solver for ConstraintLayout" in android studio SDK tools : <p>There is two option in android studio SDK tools for ConstraintLayout.One is <code>ConstraintLayout for android</code> and another is <code>Solver for ConstraintLayout</code>.</p>

<p>Here is the screenshot:
<a href="https://i.stack.imgur.com/i5hRh.png" rel="noreferrer"><img src="https://i.stack.imgur.com/i5hRh.png" alt="enter image description here"></a></p>

<p>What is the difference between these two option?</p>
