PPartisan

/**
 * SparseBooleanArray that is also Parcelable. Had to put this together so I could pass this to a
 * {@code Fragment} bundle.
 */
public class ParcelableSparseBooleanArray extends SparseBooleanArray implements Parcelable {

    public ParcelableSparseBooleanArray(){
        super();
    }

gabrielemariotti

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: