Open source code modified and saved as a Jar

Job ID: 33808344

Budget: $10 – $30 USD

Looking to have some open source code modified and saved as a Jar (aar maybe?) file so that I can add it to my Android Studio project. The open source is here https://github.com/nambicompany/expandable-fab and I'm just looking to modify 1 function within the FabOption.kt file (line 338). I know what code needs to go there I just don't know how to go about recompiling the library and creating a Jar (aar) from that. Possibly pretty simple implementation to a knowable Android developer.

It would be great if you could show me the steps in doing this for future code I may need to modify.