I have two views(`A`, `B`) chained vertically in constraintLayout, I want to make `A` a stretch to t...

# android

[AmrJyniat]

I have two views(A, B) chained vertically in constraintLayout, I want to make A a stretch to take all the available space, but maintain its minimum height to wrap_content if there is no space because the height of B is equal to wrap_content and maybe would be there is no space for the A view, any hints?