I’ve just updated the library that will make your interaction with Shared Preferences easier.
Check it out here: https://github.com/Pulimet/ShPref-Library
P.S. I would be more than glad to receive your feedback. Feel free to write comments featuring questions, requests or bug reports (hopefully none)!
How to distribute your own Android library through jCenter and Maven Central from Android Studio: https://inthecheesefactory.com/blog/how-to-upload-library-to-jcenter-maven-central-as-dependency