title: Flutter scale-down and scale-up during switch between PageView children
body: <p>In <code>Flutter</code>, I found many animations for <code>PageView</code> children, but I can't find any library for implementing below video in flutter.</p>
  <p>You can see a simple video on <a href="https://imgur.com/a/LFL1Qpy" rel="nofollow noreferrer">this link</a></p>
  <p><a href="https://i.stack.imgur.com/pdLEr.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pdLEr.jpg" alt="enter image description here" /></a></p>
  <p>Which library can I use to achieve that?</p>