picker-app/androidx.picker.adapter/DiffUtilCallback

DiffUtilCallback

class DiffUtilCallback(oldList: List<ViewData>, newList: List<ViewData>) : DiffUtil.Callback(source)

A DiffUtil.Callback for calculating the difference between two lists of ViewData.

This class is used to efficiently update a RecyclerView adapter when the underlying data changes.

Parameters

oldList

The old list of ViewData.

newList

The new list of ViewData.

Constructors

DiffUtilCallback

constructor(oldList: List<ViewData>, newList: List<ViewData>)

Functions

areContentsTheSame

open override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean

areItemsTheSame

open override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean

getChangePayload

open override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any?

open override fun getNewListSize(): Int

open override fun getOldListSize(): Int