I found a nice open library on GitHub, I imported it into my Android Studio project using Gradle dependencies, but then I realized I need to make little modifications on it.
I think the accepted answer is outdated. There is actually a really easy way to do this nowadays: jitpack.io
All you need to do is.
add in your root build.gradle
at the end of allprojects repositories:
allprojects { repositories { ... maven { url 'https://jitpack.io' } } }
Add the dependency in your app build.gradle:
dependencies { implementation 'com.github.User:Repo:Tag' }
If you don't have any releases/tags, you can also just do com.github.User:Repo:branchname-SNAPSHOT
to build from the latest commit on that branch.