com.facebook.litho.widget

Interface RecyclerRangeTraverser

public interface RecyclerRangeTraverser

An interface for generating traversing order for a range.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	RecyclerRangeTraverser.Processor

Field Summary

Fields

Modifier and Type	Field and Description
static RecyclerRangeTraverser	BACKWARD_TRAVERSER
static RecyclerRangeTraverser	BIDIRECTIONAL_TRAVERSER A more optimized range traverser that expands from the center for the visible range so that items adjacent to the visible ones are traversed first.
static RecyclerRangeTraverser	FORWARD_TRAVERSER

Method Summary

Modifier and Type	Method and Description
void	traverse(int rangeStart, int rangeEnd, int firstVisible, int lastVisible, RecyclerRangeTraverser.Processor processor) Traverse the given range.

Field Detail

FORWARD_TRAVERSER

static final RecyclerRangeTraverser FORWARD_TRAVERSER

BACKWARD_TRAVERSER

static final RecyclerRangeTraverser BACKWARD_TRAVERSER

BIDIRECTIONAL_TRAVERSER

static final RecyclerRangeTraverser BIDIRECTIONAL_TRAVERSER

A more optimized range traverser that expands from the center for the visible range so that items adjacent to the visible ones are traversed first.

Method Detail

traverse

void traverse(int rangeStart,
              int rangeEnd,
              int firstVisible,
              int lastVisible,
              RecyclerRangeTraverser.Processor processor)

Traverse the given range.

Parameters:

rangeStart - Start of the range, inclusive

rangeEnd - End of the range, exclusive

firstVisible - Index of the first visible item

lastVisible - Index of the last visible item

handler - Handler that will perform job for each index in the range and determines if we need to stop