https://gist.github.com/gabrielemariotti/4c189fb1124df4556058?permalink_comment_id=2638995
A SimpleSectionedRecyclerViewAdapter: use this class to realize a simple sectioned...
A SimpleSectionedRecyclerViewAdapter: use this class to realize a simple sectioned `RecyclerView.Adapter`. - Readme.md
use thisclassrealizesimplesectioned