How to connect these UI libraries to Android Studio?

Question

Java

Good evening.
Yesterday I came across on Github a library of various Android Studio gizmos.
I liked them and decided to use them.
But I'm just starting to study android, and apparently I don't understand something.
It says that you need to connect via Gradle, well, I connect, but it still doesn't work.
Please explain to me how to connect them and start using them, because I can't follow the author's instructions. I do not understand something.
Here are the files: click

Answer 1

This is not a library, but a list of libraries.
You need to follow the link of the required library and read its description. In most cases, there is an installation instruction, which almost always looks like writing a single line in gradle.