How to do animation using autolayout in ease in ease out fashion for all screen sizes of iOS?
<p>Using autolayout how can I do animation like ease in, ease out. Should I switch to core-animation for this. 
For animation using constraints I understood from this link <a href="https://stackoverflow.com/questions/12622424/how-do-i-animate-constraint-changes">How do I animate constraint changes?</a></p>

<p>But they are not talking about animating like this.<a href="https://i.stack.imgur.com/USLDm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/USLDm.png" alt="enter image description here"></a></p>

<p>How would I do animation like this, or in a bezier path using bezier function which would look good in all iOS sizes of screens . I searched a lot but I am missing this answer for a long time. A standard practise of doing ease in ease out or along a bezier path using <strong>autolayout</strong> . I understand there is a workaround but again asking for the standard practise?</p>