com.facebook.litho.widget

Interface LayoutHandlerFactory

public interface LayoutHandlerFactory

A Factory used to create RunnableHandlers in RecyclerBinder.

Method Summary

Modifier and Type	Method and Description
RunnableHandler	createLayoutCalculationHandler(RenderInfo renderInfo)
boolean	shouldUpdateLayoutHandler(RenderInfo previousRenderInfo, RenderInfo newRenderInfo)

Method Detail

createLayoutCalculationHandler

RunnableHandler createLayoutCalculationHandler(RenderInfo renderInfo)

Returns:

a new RunnableHandler that will be used to compute the layouts of the children of the RecyclerSpec.

shouldUpdateLayoutHandler

boolean shouldUpdateLayoutHandler(RenderInfo previousRenderInfo,
                                  RenderInfo newRenderInfo)

Returns:

If true, RunnableHandler of ComponentTree that's being updated by update operation of RecyclerBinder will be replaced by new RunnableHandler returned from createLayoutCalculationHandler(RenderInfo), otherwise keep using existing RunnableHandler created during item insertion.