Репозиторий с примерами анимаций:
https://github.com/android/animation-samples

Motions layout примеры
https://developer.android.com/training/constraint-layout/motionlayout/examples

Lottie
https://airbnb.design/lottie/
https://lottiefiles.com/

Shapeshifter
https://shapeshifter.design/

Get animated (Android Dev Summit '18)
https://www.youtube.com/watch?v=N_x7SV3I3P0

Introduction to animations
https://developer.android.com/training/animation/overview

Секрет свойства animatelayoutchanges
https://proandroiddev.com/the-little-secret-of-android-animatelayoutchanges-e4caab2fddec

(На 36:35 слайде)
Set Pager transformation
https://www.youtube.com/watch?v=mZats9mHIYE&t=361s
Coordinator layout+ collapsing toolbar example
https://www.youtube.com/watch?v=llle9e4IPss&t=2325s