Remember the olden days of Android development? There were times when including a library in a project meant relative links to source, or using Maven. Fortunately for us, those days are long gone now with the introduction of Gradle.
Gradle has made developing and consuming libraries for Android amazingly simple, and has spurred a new boom in library development for Android. We’ve always had a large, open, inclusive community to boast of, but over the past year or two it has only gotten better as the community has matured.