Nested scrolling support for CoordinatorLayout and behaviors

Add support for nested scrolling to CoordinatorLayout behaviors. A
behavior can elect to handle nested scrolling for an arbitrarily
nested child. This allows other elements in the CoordinatorLayout to
respond to scrolling events from other containers deeper in the
hierarchy, for example by scrolling a toolbar off of the top of the
screen as a user scrolls.

Change-Id: I4c2d0e24d8034e2d9662a025ef31d3976f880868
1 file changed