How to do the new PlayStore parallax effect

Question

Does anyone know how can I achieve the new parallax scrolling effect - you can see the effect when you open an app on the PlayStore and try to scroll down, the content goes

Answer 1

try the ObservableScrollView library

https://github.com/ksoichiro/Android-ObservableScrollView

demo application from play store

https://play.google.com/store/apps/details?id=com.github.ksoichiro.android.observablescrollview.samples2

sample demo,