public abstract class SimpleItemAnimator
extends RecyclerView.ItemAnimator

   ↳ androidx.recyclerview.widget.RecyclerView.ItemAnimator
     ↳ androidx.recyclerview.widget.SimpleItemAnimator

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 RecyclerView.ItemAnimator.obtainHolderInfo() method to provide your own info class that extends RecyclerView.ItemAnimator.ItemHolderInfo.


Inherited constants

Public constructors


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.