Barrier doesn't set to referenceIds in constraint layout?

Question

hey last few days I am exploring about the constraint layout.the concept of barrier I can understand but when i implement I can\'t get the correct output.

I want to set

Answer 1

I had a similar issue when using

implementation 'com.android.support.constraint:constraint-layout:1.1.3'

The same code was working in one project but not in another, both using the same version of the constraint-layout

If it works on device and but not in the layout editor, then try to force refresh the layout in the editor