How to make an RSS reader for Android?

Question

Android

Good day!
Essence of the question: There is a personal site with regular visitors. There is a need (many requests) for a simple RSS reader for Android. Where can I find good tutorials on how to create them? And how to bring beauty to the application (your UI)?
The essence of the problem: Front-end developer. I wrote Android applications only from the "Hello, World!" category, but I am ready to spend a lot of time to master the topic.
ps I am aware that you can use ready-made and very convenient RSS readers, rather than write your own, but I am very carried away by this topic and have a great desire to learn new things, please do not throw slippers
Thank you in advance!
Sincerely.

Answer 1

if you really want to do the simplest thing yourself, use retrofit (in the latest version of xmlconverter out of the box)
retrofit
Material design

Answer 2

use the power of open source ;) the whole github is at your disposal!