added in version 22.1.0
belongs to Maven artifact com.android.support:recyclerview-v7:28.0.0-alpha1

Summary: Inherited Constants | Ctors | Methods | Inherited Methods | [Expand All]

DefaultItemAnimator

This package is part of the Android support library which is no longer maintained. The support library has been superseded by AndroidX which is part of Jetpack. We recommend using the AndroidX libraries in all new projects. You should also consider migrating existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library class mappings.

public class DefaultItemAnimator
extends SimpleItemAnimator

java.lang.Object
↳	android.support.v7.widget.RecyclerView.ItemAnimator
	↳	android.support.v7.widget.SimpleItemAnimator
		↳	android.support.v7.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.

See also:

• setItemAnimator(RecyclerView.ItemAnimator)

Summary

Inherited constants

From class android.support.v7.widget.RecyclerView.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 RecyclerView.LayoutManager. int FLAG_CHANGED The Item represented by this ViewHolder is updated. int FLAG_INVALIDATED 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. int FLAG_REMOVED The Item represented by this ViewHolder is removed from the adapter.

Public constructors
DefaultItemAnimator()

Public methods
boolean	animateAdd(RecyclerView.ViewHolder holder) Called when an item is added to the RecyclerView.
boolean	animateChange(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder, int fromX, int fromY, int toX, int toY) Called when an item is changed in the RecyclerView, as indicated by a call to notifyItemChanged(int) or notifyItemRangeChanged(int, int).
boolean	animateMove(RecyclerView.ViewHolder holder, int fromX, int fromY, int toX, int toY) Called when an item is moved in the RecyclerView.
boolean	animateRemove(RecyclerView.ViewHolder holder) Called when an item is removed from the RecyclerView.
boolean	canReuseUpdatedViewHolder(RecyclerView.ViewHolder viewHolder, List<Object> payloads) 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. If the payload list is not empty, DefaultItemAnimator returns true.
void	endAnimation(RecyclerView.ViewHolder item) Method called when an animation on a view should be ended immediately.
void	endAnimations() Method called when all item animations should be ended immediately.
boolean	isRunning() Method which returns whether there are any item animations currently running.
void	runPendingAnimations() Called when there are pending animations waiting to be started.

Inherited methods
From class android.support.v7.widget.SimpleItemAnimator abstract boolean animateAdd(RecyclerView.ViewHolder holder) Called when an item is added to the RecyclerView.