Using coordinatorLayout anchor's with constraintLayout

Question

I want to design something like this :

as you can see fab is between header and the body.

it's easy to do it with coordinatorLayout with app:anchor and app:anchorGravity attributes

but i want to do it with constraintLayout.

any ideas ?

Answer 1

I've found the answer :))

<FAB
   ...
   app:layout_constraintTop_toBottomOf="@+id/header"
   app:layout_constraintBottom_toTopOf="@id/body"/>