How to animate RecyclerView items when they appear

Question

How can I animate the RecyclerView Items when there are appearing   The default item animator only animates when a data is added or removed after the recycler data has been set  I m new developing applications and don t have any clue where to start   Any ideas how to achieve this

User · Answer

A good place to start is this  https   github com wasabeef recyclerview-animators blob master animators src main java jp wasabeef recyclerview adapters AnimationAdapter java  You don t even need the full library  that class is enough  Then if you just implement your Adapter class giving an animator like this    Override protected Animator   getAnimators View view        return new Animator                ObjectAnimator ofFloat view   translationY   view getMeasuredHeight    0             Override public long getItemId final int position        return getWrappedAdapter   getItemId position       you ll see items appearing from the bottom as they scroll  also avoiding the problem with the fast scroll

User · Answer

Just extends your Adapter like below   public class RankingAdapter extends AnimatedRecyclerView lt RankingAdapter ViewHolder gt     And add super method to onBindViewHolder   Override     public void onBindViewHolder ViewHolder holder  final int position            super onBindViewHolder holder  position     It s automate way to create animated adapter like  Basheer AL-MOMANI   import android support v7 widget RecyclerView  import android view View  import android view ViewGroup  import android view animation Animation  import android view animation ScaleAnimation   import java util Random          Created by eliaszkubala on 24 02 2017      public class AnimatedRecyclerView lt T extends RecyclerView ViewHolder gt  extends RecyclerView Adapter lt T gt           Override     public T onCreateViewHolder ViewGroup parent  int viewType            return null              Override     public void onBindViewHolder T holder  int position            setAnimation holder itemView  position               Override     public int getItemCount             return 0             protected int mLastPosition   -1       protected void setAnimation View viewToAnimate  int position            if  position  gt  mLastPosition                ScaleAnimation anim   new ScaleAnimation 0 0f  1 0f  0 0f  1 0f  Animation RELATIVE TO SELF  0 5f  Animation RELATIVE TO SELF  0 5f               anim setDuration new Random   nextInt 501     to make duration random number between  0 501              viewToAnimate startAnimation anim               mLastPosition   position

User · Answer

Create this method into your recyclerview Adapter  private void setZoomInAnimation View view            Animation zoomIn   AnimationUtils loadAnimation context  R anim zoomin     animation file          view startAnimation zoomIn           And finally add this line of code in onBindViewHolder  setZoomInAnimation holder itemView

User · Answer

You can add a android layoutAnimation   anim rv item animation  attribute to RecyclerView like this    lt android support v7 widget RecyclerView     android layout width  match parent      android layout height  match parent                                              android layoutAnimation   anim layout animation fall down        gt    thanks for the excellent article here  https   proandroiddev com enter-animation-using-recyclerview-and-layoutanimation-part-1-list-75a874a5d213

User · Answer

I created animation from pbm s answer with little modification to make the aninmation run only once   in the other word the Animation appear with you scroll down only    private int lastPosition   -1   private void setAnimation View viewToAnimate  int position           If the bound view wasn t previously displayed on screen  it s animated     if  position  gt  lastPosition            ScaleAnimation anim   new ScaleAnimation 0 0f  1 0f  0 0f  1 0f  Animation RELATIVE TO SELF  0 5f  Animation RELATIVE TO SELF  0 5f           anim setDuration new Random   nextInt 501     to make duration random number between  0 501          viewToAnimate startAnimation anim           lastPosition   position            and in onBindViewHolder call the function    Override public void onBindViewHolder ViewHolder holder  int position     holder getTextView   setText  some text        call Animation function setAnimation holder itemView  position

User · Answer

EDIT    According to the ItemAnimator documentation       This class defines the animations that take place on items as changes are made to the adapter    So unless you add your items one by one to your RecyclerView and refresh the view at each iteration  I don t think ItemAnimator is the solution to your need   Here is how you can animate the RecyclerView items when they appear using a CustomAdapter    public class CustomAdapter extends RecyclerView Adapter lt CustomAdapter ViewHolder gt        private Context context          The items to display in your RecyclerView     private ArrayList lt String gt  items         Allows to remember the last item shown on screen     private int lastPosition   -1       public static class ViewHolder extends RecyclerView ViewHolder               TextView text             You need to retrieve the container  ie the root ViewGroup from your custom item layout             It s the view that will be animated         FrameLayout container           public ViewHolder View itemView                        super itemView               container    FrameLayout  itemView findViewById R id item layout container               text    TextView  itemView findViewById R id item layout text                        public CustomAdapter ArrayList lt String gt  items  Context context                this items   items          this context   context              Override     public CustomAdapter ViewHolder onCreateViewHolder ViewGroup parent  int viewType                View v   LayoutInflater from parent getContext    inflate R layout custom item layout  parent  false           return new ViewHolder v               Override     public void onBindViewHolder ViewHolder holder  int position                holder text setText items get position                Here you apply the animation when the view is bound         setAnimation holder itemView  position                         Here is the key method to apply the animation             private void setAnimation View viewToAnimate  int position                   If the bound view wasn t previously displayed on screen  it s animated         if  position  gt  lastPosition                        Animation animation   AnimationUtils loadAnimation context  android R anim slide in left               viewToAnimate startAnimation animation               lastPosition   position                      And your custom item layout would look like this     lt FrameLayout     android id    id item layout container      xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  wrap content  gt        lt TextView         android id    id item layout text          android layout width  match parent          android layout height  wrap content          android textAppearance   android attr textAppearanceListItemSmall          android gravity  center vertical          android minHeight   android attr listPreferredItemHeightSmall   gt    lt  FrameLayout gt    For more information about CustomAdapters and RecyclerView  refer to this training on the official documentation   Problems on fast scroll  Using this method could cause problems with fast scrolling  The view could be reused while the animation is been happening  In order to avoid that is recommendable to clear the animation when is detached        Override     public void onViewDetachedFromWindow final RecyclerView ViewHolder holder                  CustomViewHolder holder  clearAnimation            On CustomViewHolder       public void clearAnimation                 mRootLayout clearAnimation            Old answer    Give a look at Gabriele Mariotti s repo  I m pretty sure you ll find what you need  He provides simple ItemAnimators for the RecyclerView  such as SlideInItemAnimator or SlideScaleItemAnimator

User · Answer

Made Simple with XML only Visit Gist Link res anim layout animation xml  lt  xml version  quot 1 0 quot  encoding  quot utf-8 quot   gt       lt layoutAnimation xmlns android  quot http   schemas android com apk res android quot          android animation  quot  anim item animation fall down quot          android animationOrder  quot normal quot          android delay  quot 15  quot    gt   res anim item animation fall down xml  lt set xmlns android  quot http   schemas android com apk res android quot      android duration  quot 500 quot  gt        lt translate         android fromYDelta  quot -20  quot          android toYDelta  quot 0 quot          android interpolator  quot  android anim decelerate interpolator quot            gt        lt alpha         android fromAlpha  quot 0 quot          android toAlpha  quot 1 quot          android interpolator  quot  android anim decelerate interpolator quot            gt        lt scale         android fromXScale  quot 105  quot          android fromYScale  quot 105  quot          android toXScale  quot 100  quot          android toYScale  quot 100  quot          android pivotX  quot 50  quot          android pivotY  quot 50  quot          android interpolator  quot  android anim decelerate interpolator quot            gt    lt  set gt   Use in layouts and recylcerview like   lt androidx recyclerview widget RecyclerView     android id  quot   id recycler view quot      android layout width  quot match parent quot      android layout height  quot wrap content quot      android layoutAnimation  quot  anim layout animation quot      app layout behavior  quot  string appbar scrolling view behavior quot    gt

User · Answer

I think  is better to use it like this   in RecyclerView adapter override just a one method   override fun onViewAttachedToWindow holder  ViewHolder        super onViewAttachedToWindow holder       setBindAnimation holder      If You want every attach animation there in RV

User · Answer

Animating items in the recyclerview when they are binded in the adapter might not be the best idea as that can cause the items in the recyclerview to animate at different speeds  In my case  the item at the end of the recyclerview animate to their position quicker then the ones at the top as the ones at the top have further to travel so it made it look untidy   The original code that I used to animate each item into the recyclerview can be found here   http   frogermcs github io Instagram-with-Material-Design-concept-is-getting-real   But I will copy and paste the code in case the link breaks   STEP 1  Set this inside your onCreate method so that you ensure the animation only run once   if  savedInstanceState    null        pendingIntroAnimation   true      STEP 2  You will need to put this code into the method where you want to start the animation   if  pendingIntroAnimation        pendingIntroAnimation   false      startIntroAnimation        In the link  the writer is animating the toolbar icons  so he put it inside this method    Override public boolean onCreateOptionsMenu Menu menu        getMenuInflater   inflate R menu menu main  menu       inboxMenuItem   menu findItem R id action inbox       inboxMenuItem setActionView R layout menu item view       if  pendingIntroAnimation            pendingIntroAnimation   false          startIntroAnimation              return true      STEP 3  Now write the logic for the startIntroAnimation     private static final int ANIM DURATION TOOLBAR   300   private void startIntroAnimation         btnCreate setTranslationY 2   getResources   getDimensionPixelOffset R dimen btn fab size         int actionbarSize   Utils dpToPx 56       toolbar setTranslationY -actionbarSize       ivLogo setTranslationY -actionbarSize       inboxMenuItem getActionView   setTranslationY -actionbarSize        toolbar animate                translationY 0               setDuration ANIM DURATION TOOLBAR               setStartDelay 300       ivLogo animate                translationY 0               setDuration ANIM DURATION TOOLBAR               setStartDelay 400       inboxMenuItem getActionView   animate                translationY 0               setDuration ANIM DURATION TOOLBAR               setStartDelay 500               setListener new AnimatorListenerAdapter                      Override                 public void onAnimationEnd Animator animation                        startContentAnimation                                                  start        My preferred alternative   I would rather animate the whole recyclerview instead of the items inside the recyclerview   STEP 1 and 2 remains the same   In STEP 3  as soon as your API call returns with your data  I would start the animation   private void startIntroAnimation         recyclerview setTranslationY latestPostRecyclerview getHeight         recyclerview setAlpha 0f       recyclerview animate                translationY 0               setDuration 400               alpha 1f               setInterpolator new AccelerateDecelerateInterpolator                 start        This would animate your entire recyclerview so that it flys in from the bottom of the screen

User · Answer

I animated fading in of Recyclerview items when they first appear as shown in the code below  Perhaps this will be of use to someone   private final static int FADE DURATION   1000    FADE DURATION in milliseconds   Override public void onBindViewHolder ViewHolder holder  int position         holder getTextView   setText  some text            Set the view to fade in     setFadeAnimation holder itemView                  private void setFadeAnimation View view        AlphaAnimation anim   new AlphaAnimation 0 0f  1 0f       anim setDuration FADE DURATION       view startAnimation anim       You can also replace setFadeAnimation   with the following setScaleAnimation   to animate appearance of items by scaling them from a point   private void setScaleAnimation View view        ScaleAnimation anim   new ScaleAnimation 0 0f  1 0f  0 0f  1 0f  Animation RELATIVE TO SELF  0 5f  Animation RELATIVE TO SELF  0 5f       anim setDuration FADE DURATION       view startAnimation anim       The code above has some warts in so far as when you scroll the RecyclerView items always fade or scale  If you wish you can add code to just allow the animation to happen when the fragment or activity containing the RecyclerView is first created  e g  get the system time on creation and only allow animation for the first FADE DURATION milliseconds

User · Answer

In 2019  I would suggest putting all the item animations into the ItemAnimator   Let s start with declaring the animator in the recycler-view   with view recycler view    adapter   Adapter   itemAnimator   CustomAnimator       Declare the custom animator then   class CustomAnimator     DefaultItemAnimator           override fun animateAppearance         holder  RecyclerView ViewHolder         preInfo  ItemHolderInfo          postInfo  ItemHolderInfo   Boolean      declare  what happens when a item appears on the recycler view       override fun animatePersistence         holder  RecyclerView ViewHolder         preInfo  ItemHolderInfo         postInfo  ItemHolderInfo   Boolean       declare animation for items that persist in a recycler view even when the items change      Similar to the ones above there is one for disappearance animateDisappearance  for add animateAdd  for change animateChange and move animateMove    One important point would be to call the correct animation-dispatchers inside them

[android] How to animate RecyclerView items when they appear

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