How to implement file system output (explorer) to the screen in Fragment in Java (Android)?

Question

Java

Good day, friends! Recently, such a question appeared when developing an application for the Android OS: how to display the directory system, directly, in a Fragment or ListFragment (Tabs)? I re-read several articles on working with the file system in the Android OS, sorted out the sources from github.com and 4pda.ru, but when I'm going to implement my plan personally, something definitely goes wrong, because before that, unfortunately, I had no business with fragments . In general, could you tell me by what method or methods it is possible to implement this?
I will be extremely grateful to you!