com.timehop.stickyheadersrecyclerview

Interface StickyRecyclerHeadersAdapter<VH extends android.support.v7.widget.RecyclerView.ViewHolder>

public interface StickyRecyclerHeadersAdapter<VH extends android.support.v7.widget.RecyclerView.ViewHolder>

Method Summary

Modifier and Type	Method and Description
long	getHeaderId(int position) Get the ID of the header associated with this item.
int	getItemCount()
void	onBindHeaderViewHolder(VH holder, int position) Binds an existing ViewHolder to the specified adapter position.
VH	onCreateHeaderViewHolder(android.view.ViewGroup parent) Creates a new ViewHolder for a header.

Method Detail

getHeaderId

long getHeaderId(int position)

Get the ID of the header associated with this item. For example, if your headers group items by their first letter, you could return the character representation of the first letter. Return a value < 0 if the view should not have a header (like, a header view or footer view)

Parameters:

position - the position of the view to get the header ID of

Returns:

the header ID

onCreateHeaderViewHolder

VH onCreateHeaderViewHolder(android.view.ViewGroup parent)

Creates a new ViewHolder for a header. This works the same way onCreateViewHolder in Recycler.Adapter, ViewHolders can be reused for different views. This is usually a good place to inflate the layout for the header.

Parameters:

parent - the view to create a header view holder for

Returns:

the view holder

onBindHeaderViewHolder

void onBindHeaderViewHolder(VH holder,
                            int position)

Binds an existing ViewHolder to the specified adapter position.

Parameters:

holder - the view holder

position - the adapter position

getItemCount

int getItemCount()

Returns:

the number of views in the adapter