You can use this class to realize a simple sectioned RecyclerView.Adapter without changing your code.
The RecyclerView should use a LinearLayoutManager.
You can use this code also with the TwoWayView with the ListLayoutManager (https://github.com/lucasr/twoway-view)
This is a porting of the class SimpleSectionedListAdapter provided by Google
Example:
| // StickyHeadersCollectionViewFlowLayout | |
| // | |
| // A subclass of UICollectionViewFlowLayout which has UITableView style sticky headers. | |
| // | |
| // This code is based on Evadne Wu's code^1, with the following changes: | |
| // | |
| // * Fixes a crash for sections with zero items | |
| // * Adds support for UIScrollView's contentInset | |
| // * Adds support for UICollectionViewFlowLayout's sectionInset | |
| // |
