There should be a PageTransformer for having various effects when PageView's pages are switched #12234
Description
Could be slightly related to #8103.
Android has a notion of PageTransformers (see under "Customize the Animation with PageTransformer" section). PageTransformers allow the developer to customize animations on Android's equivalent of PageViews, ViewPagers.
Here's a sample what kinds of effects developers usually want to do:
