added in version 24.1.0
belongs to Maven artifact com.android.support:recyclerview-v7:28.0.0-alpha1

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

SimpleItemAnimator

public abstract class SimpleItemAnimator
extends RecyclerView.ItemAnimator

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

Known Direct Subclasses

DefaultItemAnimator

A wrapper class for ItemAnimator that records View bounds and decides whether it should run move, change, add or remove animations. This class also replicates the original ItemAnimator API.

It uses RecyclerView.ItemAnimator.ItemHolderInfo to track the bounds information of the Views. If you would like to extend this class, you can override obtainHolderInfo() method to provide your own info class that extends RecyclerView.ItemAnimator.ItemHolderInfo.

Summary

Inherited constants

From class


    android.support.v7.widget.RecyclerView.ItemAnimator

Public constructors
`SimpleItemAnimator()`

Public methods
`abstract boolean`	`animateAdd(RecyclerView.ViewHolder holder)` Called when an item is added to the RecyclerView.
`boolean`	`animateAppearance(RecyclerView.ViewHolder viewHolder, RecyclerView.ItemAnimator.ItemHolderInfo preLayoutInfo, RecyclerView.ItemAnimator.ItemHolderInfo postLayoutInfo)` Called by the RecyclerView when a ViewHolder is added to the layout.
`abstract boolean`	`animateChange(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder, int fromLeft, int fromTop, int toLeft, int toTop)` Called when an item is changed in the RecyclerView, as indicated by a call to `notifyItemChanged(int)` or `notifyItemRangeChanged(int, int)`.
`boolean`	`animateChange(RecyclerView.ViewHolder oldHolder, RecyclerView.ViewHolder newHolder, RecyclerView.ItemAnimator.ItemHolderInfo preInfo, RecyclerView.ItemAnimator.ItemHolderInfo postInfo)` Called by the RecyclerView when an adapter item is present both before and after the layout and RecyclerView has received a `notifyItemChanged(int)` call for it.
`boolean`	`animateDisappearance(RecyclerView.ViewHolder viewHolder, RecyclerView.ItemAnimator.ItemHolderInfo preLayoutInfo, RecyclerView.ItemAnimator.ItemHolderInfo postLayoutInfo)` Called by the RecyclerView when a ViewHolder has disappeared from the layout.
`abstract boolean`	`animateMove(RecyclerView.ViewHolder holder, int fromX, int fromY, int toX, int toY)` Called when an item is moved in the RecyclerView.
`boolean`	`animatePersistence(RecyclerView.ViewHolder viewHolder, RecyclerView.ItemAnimator.ItemHolderInfo preInfo, RecyclerView.ItemAnimator.ItemHolderInfo postInfo)` Called by the RecyclerView when a ViewHolder is present in both before and after the layout and RecyclerView has not received a `notifyItemChanged(int)` call for it or a `notifyDataSetChanged()` call.
`abstract boolean`	`animateRemove(RecyclerView.ViewHolder holder)` Called when an item is removed from the RecyclerView.
`boolean`	`canReuseUpdatedViewHolder(RecyclerView.ViewHolder viewHolder)` 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.
`final void`	`dispatchAddFinished(RecyclerView.ViewHolder item)` Method to be called by subclasses when an add animation is done.
`final void`	`dispatchAddStarting(RecyclerView.ViewHolder item)` Method to be called by subclasses when an add animation is being started.
`final void`	`dispatchChangeFinished(RecyclerView.ViewHolder item, boolean oldItem)` Method to be called by subclasses when a change animation is done.
`final void`	`dispatchChangeStarting(RecyclerView.ViewHolder item, boolean oldItem)` Method to be called by subclasses when a change animation is being started.
`final void`	`dispatchMoveFinished(RecyclerView.ViewHolder item)` Method to be called by subclasses when a move animation is done.
`final void`	`dispatchMoveStarting(RecyclerView.ViewHolder item)` Method to be called by subclasses when a move animation is being started.
`final void`	`dispatchRemoveFinished(RecyclerView.ViewHolder item)` Method to be called by subclasses when a remove animation is done.
`final void`	`dispatchRemoveStarting(RecyclerView.ViewHolder item)` Method to be called by subclasses when a remove animation is being started.
`boolean`	`getSupportsChangeAnimations()` Returns whether this ItemAnimator supports animations of change events.
`void`	`onAddFinished(RecyclerView.ViewHolder item)` Called when an add animation has ended on the given ViewHolder.
`void`	`onAddStarting(RecyclerView.ViewHolder item)` Called when an add animation is being started on the given ViewHolder.
`void`	`onChangeFinished(RecyclerView.ViewHolder item, boolean oldItem)` Called when a change animation has ended on the given ViewHolder.
`void`	`onChangeStarting(RecyclerView.ViewHolder item, boolean oldItem)` Called when a change animation is being started on the given ViewHolder.
`void`	`onMoveFinished(RecyclerView.ViewHolder item)` Called when a move animation has ended on the given ViewHolder.
`void`	`onMoveStarting(RecyclerView.ViewHolder item)` Called when a move animation is being started on the given ViewHolder.
`void`	`onRemoveFinished(RecyclerView.ViewHolder item)` Called when a remove animation has ended on the given ViewHolder.
`void`	`onRemoveStarting(RecyclerView.ViewHolder item)` Called when a remove animation is being started on the given ViewHolder.
`void`	`setSupportsChangeAnimations(boolean supportsChangeAnimations)` Sets whether this ItemAnimator supports animations of item change events.

Inherited methods