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

Answer 1

Solution: I'm assuming that you have your toolbar as another xml file, something like this:

toolbar.xml

then using ConstraintLayout use it with FrameLayout like this:

Hope this helps. Please comment if you have any issues with it.