Toolbar will not collapse with Scrollview as child of CoordinatorLayout

Question

I am trying to follow the Google Docs on using the CoordinatorLayout but i am having an issue with the ScrollView inside the CoordinatorLayout. Basically, the Toolbar normal

Answer 1

The actual answer should be that CoordinatorLayout doesn't work with ScrollView, because ScrollView is not implementing NestedScrollingChild interface. NestedScrollView is a ScrollView with NestedScrollingChild implementation. If you want to learn more about nested scrolling I made a blog post about it.