How to set a view's height match parent in ConstraintLayout?

Question

I am creating a layout.I want to set my custom toolbar(Which is another layout) to the top of layout and the FrameLayout just below the toolbar. But the FrameLayout should get rest of the layout's height (match_parent). How to achieve this using constraint layout ?

Answer 1

Use 0dp that is match_contraint in ConstraintLayout.

Like android:layout_height="0dp"