Relative Guidelines w/ ConstraintLayouts

Make your custom relative constraint to multiple items.

We all know that ConstraintLayout is a huge improvement in the way we develop UI on Android. The constraint properties and component tools it provides are very handy to position the Views all along the Layout. You can even combine them to make items more responsive according to their parent.

Sometimes, you may want to constraint relatively to a View if it is visible, but also to another View or to the parent Layout if the previous View is NOT…