DefaultItemAnimator

Kotlin |Java

open class DefaultItemAnimator : SimpleItemAnimator

kotlin.Any
↳	androidx.recyclerview.widget.RecyclerView.ItemAnimator
	↳	androidx.recyclerview.widget.SimpleItemAnimator
		↳	androidx.recyclerview.widget.DefaultItemAnimator

This implementation of RecyclerView.ItemAnimator provides basic animations on remove, add, and move events that happen to the items in a RecyclerView. RecyclerView uses a DefaultItemAnimator by default.

Summary

Inherited constants

From class ItemAnimator Int FLAG_APPEARED_IN_PRE_LAYOUT This ViewHolder was not laid out but has been added to the layout in pre-layout state by the LayoutManager. This means that the item was already in the Adapter but invisible and it may become visible in the post layout phase. LayoutManagers may prefer to add new items in pre-layout to specify their virtual location when they are invisible (e.g. to specify the item should animate in from below the visible area). Int FLAG_CHANGED The Item represented by this ViewHolder is updated. Int FLAG_INVALIDATED Adapter Adapter#notifyDataSetChanged() has been called and the content represented by this ViewHolder is invalid. Int FLAG_MOVED The position of the Item represented by this ViewHolder has been changed. This flag is not bound to Adapter#notifyItemMoved(int, int). It might be set in response to any adapter change that may have a side effect on this item. (e.g. The item before this one has been removed from the Adapter). Int FLAG_REMOVED The Item represented by this ViewHolder is removed from the adapter.

Public constructors
<init>() This implementation of RecyclerView.ItemAnimator provides basic animations on remove, add, and move events that happen to the items in a RecyclerView.

Public methods
open Boolean	animateAdd(holder: RecyclerView.ViewHolder!)
open Boolean	animateChange(oldHolder: RecyclerView.ViewHolder!, newHolder: RecyclerView.ViewHolder!, fromX: Int, fromY: Int, toX: Int, toY: Int)
open Boolean	animateMove(holder: RecyclerView.ViewHolder!, fromX: Int, fromY: Int, toX: Int, toY: Int)
open Boolean	animateRemove(holder: RecyclerView.ViewHolder!)
open Boolean	canReuseUpdatedViewHolder(@NonNull viewHolder: RecyclerView.ViewHolder, @NonNull payloads: MutableList<Any!>) When an item is changed, ItemAnimator can decide whether it wants to re-use the same ViewHolder for animations or RecyclerView should create a copy of the item and ItemAnimator will use both to run the animation (e.g. cross-fade).
open Unit	endAnimation(item: RecyclerView.ViewHolder)
open Unit	endAnimations()
open Boolean	isRunning()
open Unit	runPendingAnimations()

Inherited functions
From class SimpleItemAnimator Boolean animateAppearance(@NonNull viewHolder: RecyclerView.ViewHolder, @Nullable preLayoutInfo: