Just had a look at the demo app of new Android support design library. It\'s provided by Chris Banes on github. Throught the app, CoordinatorLayout is used Heav
An additional point to note. Since OP specifically asked
Also, many of the support design libabry classes like FloatingActionButton, SnackBar, AppBarLayout etc. behaves differently when used inside CoordinatorLayout.
And I guess it is because of this.
CoordinatorLayout is a super-powered FrameLayout.
FAB Button, SnackBar works on the concept of FrameLayout, and since CoordinatorLayout itself has functionality of FrameLayout, it might make other views to behave differently!.