What is ConstraintLayout Optimizer? : <p>Google published <strong>ConstraintLayout 1.1.0 beta 6</strong> on March 22, 2018. It has a new constraint known as <strong><em>Optimizer</em></strong>. The documentation of Optimizer at <a href="https://developer.android.com/reference/android/support/constraint/ConstraintLayout.html#Optimizer" rel="noreferrer">https://developer.android.com/reference/android/support/constraint/ConstraintLayout.html#Optimizer</a> does not mention when to use and why to use it. Can someone shed some light about it usage.</p>
