litho-widget-kotlin/com.facebook.litho.widget.collection/CollectionUpdateCallback

CollectionUpdateCallback

class CollectionUpdateCallback<T>(val prevData: List<T>?, val nextData: List<T>?, renderer: (index: Int, model: T) -> RenderInfo) : ListUpdateCallback

This class aims to generate the changeset between two lists of data and create the corresponding RenderInfo for later use.

Constructors

CollectionUpdateCallback

constructor(prevData: List<T>?, nextData: List<T>?, renderer: (index: Int, model: T) -> RenderInfo)

Properties

val nextData: List<T>?

val prevData: List<T>?

Functions

open override fun onChanged(position: Int, count: Int, payload: Any?)

open override fun onInserted(position: Int, count: Int)

open override fun onMoved(fromPosition: Int, toPosition: Int)

open override fun onRemoved(position: Int, count: Int)