RecyclerView and java lang IndexOutOfBoundsException Inconsistency detected Invalid view holder adapter positionViewHolder in Samsung devices

Question

I have a recycler view that works perfectly on all devices except Samsung  On Samsung  I m get     java lang IndexOutOfBoundsException  Inconsistency detected  Invalid view holder adapter positionViewHolder   when I m going back to the fragment with the recycler view from another activity   Adapter code    public class FeedRecyclerAdapter extends RecyclerView Adapter lt FeedRecyclerAdapter MovieViewHolder gt        public static final String getUserPhoto   APIConstants BASE URL   APIConstants PICTURE PATH SMALL      Movie   mMovies   null      Context mContext   null      Activity mActivity   null      LinearLayoutManager mManager   null      private Bus uiBus   null      int mCountOfLikes   0         Constructor     public FeedRecyclerAdapter Movie   movies  Context context  Activity activity                                 LinearLayoutManager manager            mContext   context          mActivity   activity          mMovies   movies          mManager   manager          uiBus   BusProvider getUIBusInstance               public void setMoviesAndNotify Movie   movies  boolean movieIgnored            mMovies   movies          int firstItem   mManager findFirstVisibleItemPosition            View firstItemView   mManager findViewByPosition firstItem           int topOffset   firstItemView getTop            notifyDataSetChanged            if movieIgnored                mManager scrollToPositionWithOffset firstItem - 1  topOffset             else               mManager scrollToPositionWithOffset firstItem  topOffset                           Create new views  called by layout manager       Override     public MovieViewHolder onCreateViewHolder ViewGroup parent  int viewType            View view   LayoutInflater from parent getContext                     inflate R layout feed one recommended movie layout  parent  false            return new MovieViewHolder view                 Replaced contend of each view  called by layout manager       Override     public void onBindViewHolder MovieViewHolder holder  int position            setLikes holder  position           setAddToCollection holder  position           setTitle holder  position           setIgnoreMovieInfo holder  position           setMovieInfo holder  position           setPosterAndTrailer holder  position           setDescription holder  position           setTags holder  position                 returns item count  called by layout manager       Override     public int getItemCount             return mMovies    null   mMovies length   0             private void setLikes final MovieViewHolder holder  final int position            List lt Reason gt  likes   new ArrayList lt  gt             for Reason reason   mMovies position  reasons                if reason title equals  Liked this movie                      likes add reason                                   mCountOfLikes   likes size            holder likeButton setText mContext getString R string like                Html fromHtml getCountOfLikesString mCountOfLikes             final MovieRepo repo   MovieRepo getInstance            final int pos   position          final MovieViewHolder viewHolder   holder          holder likeButton setOnClickListener new View OnClickListener                  Override             public void onClick View v                    if mMovies pos  isLiked                        repo unlikeMovie AuthStore getInstance                            getAuthToken    mMovies pos  id  new Callback lt Movie gt                               Override                         public void success Movie movie  Response response                                Drawable img   mContext getResources   getDrawable R drawable ic like                               viewHolder likeButton                                  setCompoundDrawablesWithIntrinsicBounds img  null  null  null                               if  --mCountOfLikes  lt   0                                    viewHolder likeButton setText mContext getString R string like                                  else                                   viewHolder likeButton                                      setText Html fromHtml mContext getString R string like                                            getCountOfLikesString mCountOfLikes                                                               mMovies pos  isLiked   false                                                      Override                         public void failure RetrofitError error                                Toast makeText mContext getApplicationContext                                    mContext getString R string cannot like   Toast LENGTH LONG                                   show                                                                        else                       repo likeMovie AuthStore getInstance                            getAuthToken    mMovies pos  id  new Callback lt Movie gt                               Override                         public void success Movie movie  Response response                                Drawable img   mContext getResources   getDrawable R drawable ic liked green                               viewHolder likeButton                                  setCompoundDrawablesWithIntrinsicBounds img  null  null  null                               viewHolder likeButton                                  setText Html fromHtml mContext getString R string like                                        getCountOfLikesString   mCountOfLikes                                 mMovies pos  isLiked   true                              setComments holder  position                                                       Override                         public void failure RetrofitError error                                Toast makeText mContext                                  mContext getString R string cannot like   Toast LENGTH LONG  show                                                                                                             private void setComments final MovieViewHolder holder  final int position            holder likeAndSaveButtonLayout setVisibility View GONE           holder commentsLayout setVisibility View VISIBLE           holder sendCommentButton setOnClickListener new View OnClickListener                  Override             public void onClick View v                    if  holder commentsInputEdit getText   length    gt  0                        CommentRepo repo   CommentRepo getInstance                      repo sendUserComment AuthStore getInstance   getAuthToken    mMovies position  id                          holder commentsInputEdit getText   toString    new Callback lt Void gt                                   Override                             public void success Void aVoid  Response response                                    Toast makeText mContext  mContext getString R string thanks for your comment                                       Toast LENGTH SHORT  show                                    hideCommentsLayout holder                                                               Override                             public void failure RetrofitError error                                    Toast makeText mContext  mContext getString R string cannot add comment                                       Toast LENGTH LONG  show                                                                                else                       hideCommentsLayout holder                                                          private void hideCommentsLayout MovieViewHolder holder            holder commentsLayout setVisibility View GONE           holder likeAndSaveButtonLayout setVisibility View VISIBLE              private void setAddToCollection final MovieViewHolder holder  int position            final int pos   position          if mMovies position  isInWatchlist                holder saveButton                setCompoundDrawablesWithIntrinsicBounds R drawable ic check green  0  0  0                     final CollectionRepo repo   CollectionRepo getInstance            holder saveButton setOnClickListener new View OnClickListener                  Override             public void onClick View v                    if  mMovies pos  isInWatchlist                       repo addMovieToCollection AuthStore getInstance   getAuthToken    0  mMovies pos  id  new Callback lt MovieCollection   gt                                   Override                             public void success MovieCollection   movieCollections  Response response                                    holder saveButton                                      setCompoundDrawablesWithIntrinsicBounds R drawable ic check green  0  0  0                                    mMovies pos  isInWatchlist   true                                                              Override                             public void failure RetrofitError error                                    Toast makeText mContext  mContext getString R string movie not added to collection                                       Toast LENGTH LONG  show                                                                                else                    repo removeMovieFromCollection AuthStore getInstance   getAuthToken    0                          mMovies pos  id  new Callback lt MovieCollection   gt                               Override                         public void success MovieCollection   movieCollections  Response response                                holder saveButton                                  setCompoundDrawablesWithIntrinsicBounds R drawable ic plus  0  0  0                                mMovies pos  isInWatchlist   false                                                      Override                         public void failure RetrofitError error                                Toast makeText mContext                                  mContext getString R string cannot delete movie from watchlist                                   Toast LENGTH LONG  show                                                                                                             private String getCountOfLikesString int countOfLikes            String countOfLikesStr          if countOfLikes    0                countOfLikesStr                 else if countOfLikes  gt  999                countOfLikesStr          countOfLikes 1000     K             else if  countOfLikes  gt  999999               countOfLikesStr          countOfLikes 1000000     M             else               countOfLikesStr         String valueOf countOfLikes                     return   lt small gt     countOfLikesStr     lt  small gt               private void setTitle MovieViewHolder holder  final int position            holder movieTitleTextView setText mMovies position  title           holder movieTitleTextView setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MovieDetailActivity openView mContext  mMovies position  id  true  false                                        private void setIgnoreMovieInfo MovieViewHolder holder  final int position            holder ignoreMovie setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MovieRepo repo   MovieRepo getInstance                    repo hideMovie AuthStore getInstance   getAuthToken    mMovies position  id                      new Callback lt Void gt                               Override                         public void success Void aVoid  Response response                                Movie   newMovies   new Movie mMovies length - 1                               for  int i   0  j   0  j  lt  mMovies length  i    j                                      if  i    position                                        newMovies i    mMovies j                                     else                                       if    j  lt  mMovies length                                            newMovies i    mMovies j                                                                                                                                     uiBus post new MoviesChangedEvent newMovies                                setMoviesAndNotify newMovies  true                               Toast makeText mContext  mContext getString R string movie ignored                                   Toast LENGTH SHORT  show                                                        Override                         public void failure RetrofitError error                                Toast makeText mContext  mContext getString R string movie ignored failed                                   Toast LENGTH LONG  show                                                                                           private void setMovieInfo MovieViewHolder holder  int position            String imdp    IMDB             String sources       date          if mMovies position  showtimes    null  amp  amp  mMovies position  showtimes length  gt  0                int countOfSources   mMovies position  showtimes length              for int i   0  i  lt  countOfSources  i                      sources    mMovies position  showtimes i  name                                   sources   sources trim                if sources charAt sources length   - 1                            if sources length    gt  1                        sources   sources substring 0  sources length   - 2                     else                       sources                                                 else               sources                         imdp    mMovies position  imdbRating                  if sources isEmpty                  date   mMovies position  releaseYear            else               date   mMovies position  releaseYear                             holder movieInfoTextView setText imdp   date   sources              private void setPosterAndTrailer final MovieViewHolder holder  final int position            if  mMovies position     null  amp  amp  mMovies position  posterPath    null              amp  amp   mMovies position  posterPath isEmpty                  Picasso with mContext                   load mMovies position  posterPath                error mContext getResources   getDrawable R drawable noposter                    into holder posterImageView             else               holder posterImageView setImageResource R drawable noposter                     holder posterImageView setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MovieDetailActivity openView mActivity  mMovies position  id  false  false                                     if mMovies position     null  amp  amp  mMovies position  trailerLink     null              amp  amp   mMovies position  trailerLink isEmpty                  holder playTrailer setVisibility View VISIBLE               holder playTrailer setOnClickListener new View OnClickListener                      Override                 public void onClick View v                        MovieDetailActivity openView mActivity  mMovies position  id  false  true                                                          private void setDescription MovieViewHolder holder  int position            String text   mMovies position  overview          if text    null    text isEmpty             holder descriptionText setText mContext getString R string no description              else if text length    gt  200                text   text substring 0  196                       holder descriptionText setText text             else               holder descriptionText setText text                     final int pos   position          holder descriptionText setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MovieDetailActivity openView mActivity  mMovies pos  id  false  false                                        private void setTags MovieViewHolder holder  int position            List lt String gt  tags   Arrays asList mMovies position  tags           if tags size    gt  0                CastAndTagsFeedAdapter adapter   new CastAndTagsFeedAdapter tags                  mContext    FragmentActivity  mActivity  getSupportFragmentManager                 holder tags setItemMargin 10               holder tags setAdapter adapter             else               holder tags setVisibility View GONE                           class view holder that provide us a link for each element of list     public static class MovieViewHolder extends RecyclerView ViewHolder           TextView movieTitleTextView  movieInfoTextView  descriptionText  reasonsCountText          TextView reasonText1  reasonAuthor1  reasonText2  reasonAuthor2          EditText commentsInputEdit          Button likeButton  saveButton  playTrailer  sendCommentButton          ImageButton ignoreMovie          ImageView posterImageView  userPicture1  userPicture2          TwoWayView tags          RelativeLayout mainReasonsLayout  firstReasonLayout  secondReasonLayout  reasonsListLayout          RelativeLayout commentsLayout          LinearLayout likeAndSaveButtonLayout          ProgressBar progressBar           public MovieViewHolder View view                super view               movieTitleTextView    TextView view findViewById R id movie title text               movieInfoTextView    TextView view findViewById R id movie info text               descriptionText    TextView view findViewById R id text description               reasonsCountText    TextView view findViewById R id reason count               reasonText1    TextView view findViewById R id reason text 1               reasonAuthor1    TextView view findViewById R id author 1               reasonText2    TextView view findViewById R id reason text 2               reasonAuthor2    TextView view findViewById R id author 2               commentsInputEdit    EditText view findViewById R id comment input               likeButton    Button view findViewById R id like button               saveButton    Button view findViewById R id save button               playTrailer    Button view findViewById R id play trailer button               sendCommentButton    Button view findViewById R id send button               ignoreMovie    ImageButton view findViewById R id ignore movie imagebutton               posterImageView    ImageView view findViewById R id poster image               userPicture1    ImageView view findViewById R id user picture 1               userPicture2    ImageView view findViewById R id user picture 2               tags    TwoWayView view findViewById R id list view feed tags               mainReasonsLayout    RelativeLayout view findViewById R id reasons main layout               firstReasonLayout    RelativeLayout view findViewById R id first reason               secondReasonLayout    RelativeLayout view findViewById R id second reason               reasonsListLayout    RelativeLayout view findViewById R id reasons list               commentsLayout    RelativeLayout view findViewById R id comments layout               likeAndSaveButtonLayout    LinearLayout view                  findViewById R id like and save buttons layout               progressBar    ProgressBar view findViewById R id centered progress bar                       Exception   java lang IndexOutOfBoundsException  Inconsistency detected  Invalid view holder adapter positionViewHolder 42319ed8 position 1 id -1  oldPos 0  pLpos 0 scrap tmpDetached no parent   at android support v7 widget RecyclerView Recycler validateViewHolderForOffsetPosition RecyclerView java 4166   at android support v7 widget RecyclerView Recycler getViewForPosition RecyclerView java 4297   at android support v7 widget RecyclerView Recycler getViewForPosition RecyclerView java 4278   at android support v7 widget LinearLayoutManager LayoutState next LinearLayoutManager java 1947   at android support v7 widget GridLayoutManager layoutChunk GridLayoutManager java 434   at android support v7 widget LinearLayoutManager fill LinearLayoutManager java 1322   at android support v7 widget LinearLayoutManager onLayoutChildren LinearLayoutManager java 556   at android support v7 widget GridLayoutManager onLayoutChildren GridLayoutManager java 171   at android support v7 widget RecyclerView dispatchLayout RecyclerView java 2627   at android support v7 widget RecyclerView onLayout RecyclerView java 2971   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android support v4 widget SwipeRefreshLayout onLayout SwipeRefreshLayout java 562   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget FrameLayout layoutChildren FrameLayout java 453   at android widget FrameLayout onLayout FrameLayout java 388   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android support v4 view ViewPager onLayout ViewPager java 1626   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget LinearLayout setChildFrame LinearLayout java 1677   at android widget LinearLayout layoutVertical LinearLayout java 1531   at android widget LinearLayout onLayout LinearLayout java 1440   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android support v4 view ViewPager onLayout ViewPager java 1626   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget LinearLayout setChildFrame LinearLayout java 1677   at android widget LinearLayout layoutVertical LinearLayout java 1531   at android widget LinearLayout onLayout LinearLayout java 1440   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget FrameLayout layoutChildren FrameLayout java 453   at android widget FrameLayout onLayout FrameLayout java 388   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget LinearLayout setChildFrame LinearLayout java 1677   at android widget LinearLayout layoutVertical LinearLayout java 1531   at android widget LinearLayout onLayout LinearLayout java 1440   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget FrameLayout layoutChildren FrameLayout java 453   at android widget FrameLayout onLayout FrameLayout java 388  07-30 12 48 22 688    9590-9590 com Filmgrail android debug W System err  at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget LinearLayout setChildFrame LinearLayout java 1677   at android widget LinearLayout layoutVertical LinearLayout java 1531   at android widget LinearLayout onLayout LinearLayout java 1440   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android widget FrameLayout layoutChildren FrameLayout java 453   at android widget FrameLayout onLayout FrameLayout java 388   at android view View layout View java 15746   at android view ViewGroup layout ViewGroup java 4867   at android view ViewRootImpl performLayout ViewRootImpl java 2356   at android view ViewRootImpl performTraversals ViewRootImpl java 2069   at android view ViewRootImpl doTraversal ViewRootImpl java 1254   at android view ViewRootImpl TraversalRunnable run ViewRootImpl java 6630   at android view Choreographer CallbackRecord run Choreographer java 803   at android view Choreographer doCallbacks Choreographer java 603   at android view Choreographer doFrame Choreographer java 573   at android view Choreographer FrameDisplayEventReceiver run Choreographer java 789   at android os Handler handleCallback Handler java 733   at android os Handler dispatchMessage Handler java 95   at android os Looper loop Looper java 136   at android app ActivityThread main ActivityThread java 5479   at java lang reflect Method invokeNative Native Method   at java lang reflect Method invoke Method java 515   at com android internal os ZygoteInit MethodAndArgsCaller run ZygoteInit java 1283   at com android internal os ZygoteInit main ZygoteInit java 1099   at dalvik system NativeStart main Native Method    How can I fix this

User · Answer

I am using a Cursor so I can not use the DiffUtils as proposed in the popular answers. In order to make it work for me I am disabling animations when the list is not idle. This is the extension that fixes this issue:

 fun RecyclerView.executeSafely(func : () -> Unit) {
        if (scrollState != RecyclerView.SCROLL_STATE_IDLE) {
            val animator = itemAnimator
            itemAnimator = null
            func()
            itemAnimator = animator
        } else {
            func()
        }
    }

Then you can update your adapter like that

list.executeSafely {
  adapter.updateICursor(newCursor)
}

User · Answer

I ran into the same problem    My app uses Navigation components with a fragment containing my recyclerView  My list displayed fine the first time the fragment was loaded     but upon navigating away and coming back this error occurred   When navigating away the fragment lifecycle went only through onDestroyView and upon returning it started at onCreateView  However  my adapter was initialized in the fragment s onCreate and did not reinitialize when returning   The fix was to initialize the adapter in onCreateView   Hope this may help someone

User · Answer

According to this issue  the problem has been resolved and was likely released some time near the beginning of 2015  A quote from that same thread   It is specifically related to calling notifyDataSetChanged        Btw  I strongly advice not using notifyDataSetChanged because it kills animations and performance  Also for this case  using specific notify events will work around the issue   If you are still having issues with a recent version of the support library  I would suggest reviewing your calls to notifyXXX  specifically  your use of notifyDataSetChanged  inside your adapter  to make sure you are adhering to the  somewhat delicate obscure  RecyclerView Adapter contract  Also be sure to issue those notifications on the main thread

User · Answer

In my case the problem was that I used notifyDataSetChanged when amount of newly loaded data was less than initial data  This approach helped me   adapter notifyItemRangeChanged 0  newAmountOfData   1   adapter notifyItemRangeRemoved newAmountOfData   1  previousAmountOfData

User · Answer

I got this error because i was calling  notifyItemInserted  twice by mistake

User · Answer

I ran into the same problem when I have both removed and updated items in the list    After days of investigating I think I finally found a solution   What you need to do is first do all the notifyItemChanged of your list and only then do all the notifyItemRemoved in a descending order  I hope this will help people that are running into the same issue

User · Answer

In my case  I was getting this problem because of getting data updates from server  I am using Firebase Firestore  and while the first set of data is being processed by DiffUtil in the background  another set of data update comes and causes a concurrency issue by starting another DiffUtil    In short  if you are using DiffUtil on a Background thread which then comes back to the Main Thread to dispatch the results to the RecylerView  then you run the chance of getting this error when multiple data updates come in short time   I solved this by following the advice in this wonderful explanation  https   medium com  jonfhancock get-threading-right-with-diffutil-423378e126d2  Just to explain the solution is to push the updates while the current one is running to a Deque  The deque can then run the pending updates once the current one finishes  hence handling all subsequent updates but avoiding inconsistency errors as well   Hope this helps because this one made me scratch my head

User · Answer

I had a similar problem   Problem in error code below   int prevSize   messageListHistory size       some insert adapter notifyItemRangeInserted prevSize - 1  messageListHistory size   -1     Solution   int prevSize   messageListHistory size       some insert adapter notifyItemRangeInserted prevSize  messageListHistory size   -prevSize

User · Answer

another reason this problem happens is when you call these methods with wrong indexes  indexes which there has NOT happened insert or remove in them   -notifyItemRangeRemoved   -notifyItemRemoved  -notifyItemRangeInserted  -notifyItemInserted  check indexe parameters to these methods and make sure they are precise and correct

User · Answer

In my case I ve had more then 5000 items in the list  My problem was that when scrolling the recycler view  sometimes the  onBindViewHolder  get called while  myCustomAddItems  method is altering the list   My solution was to add  synchronized  syncObject     to all the methods that alter the data list  This way at any point at time only one method can read this list

User · Answer

In my case every time when I call notifyItemRemoved 0   it crashed  Turned out that I set setHasStableIds true  and in getItemId I just returned the item position   I ended out updating it to return the item s hashCode   or self-defined unique id  which solved the issue

User · Answer

New answer  Use DiffUtil for all RecyclerView updates  This will help with both performance and the bug above   See Here  Previous answer  This worked for me  The key is to not use notifyDataSetChanged   and to do the right things in the correct order   public void setItems ArrayList lt Article gt  newArticles          get the current items     int currentSize   articles size          remove the current items     articles clear          add all the new items     articles addAll newArticles         tell the recycler view that all the old items are gone     notifyItemRangeRemoved 0  currentSize         tell the recycler view how many new items we added     notifyItemRangeInserted 0  newArticles size

User · Answer

I got this error because I was mistakenly calling a method to remove a specific row from my recyclerview multiple times  I had a method like   void removeFriends         final int loc   data indexOf friendsView       data remove friendsView       notifyItemRemoved loc       I was accidentally calling this method three times instead of once  so the second time loc was -1 and the error was given when it tried to remove it  The two fixes were to ensure the method was only called once  and also to add a sanity check like this   void removeFriends         final int loc   data indexOf friendsView       if  loc  gt  -1            data remove friendsView           notifyItemRemoved loc

User · Answer

I ran into the same problem when I have update data while the RecyclerView is scrolling  And I fixed it with the following solution   Stop scroll our RecyclerView before update data  Custom layout manager likes with the preceding answer  Use DiffUtils to ensure updating data is correct

User · Answer

This happens when you specify the incorrect position for the notifyItemChanged    notifyItemRangeInserted etc For me    Before    Erroneous   public void addData List lt ChannelItem gt  list      int initialSize   list size      mChannelItemList addAll list     notifyItemRangeChanged initialSize - 1  mChannelItemList size           After    Correct    public void addData List lt ChannelItem gt  list      int initialSize   mChannelItemList size      mChannelItemList addAll list     notifyItemRangeInserted initialSize  mChannelItemList size  -1     Correct position

User · Answer

I had the same problem   It was caused because I delayed notification for adapter about item insert   But ViewHolder tried to redraw some data in it s view and it started the RecyclerView measuring and recounting children count - at that moment it crashed  items list and it s size was already updated  but the adapter was not notified yet

User · Answer

If your data changes a lot  you can use   mAdapter notifyItemRangeChanged 0  yourData size       or some single items in your data set changes  your can use   mAdapter notifyItemChanged pos     For detailed methods usage  you can refer the doc  in a way  try not to directly use mAdapter notifyDataSetChanged

User · Answer

This is an example for refreshing data with completely new content  You can easily modify it to fit your needs  I solved this in my case by calling   notifyItemRangeRemoved 0  previousContentSize     before   notifyItemRangeInserted 0  newContentSize     This is the correct solution and is also mentioned in this post by an AOSP project member

User · Answer

Reasons caused this issue    An internal issue in Recycler when item animations are enabled Modification on Recycler data in another thread Calling notify methods in a wrong way   SOLUTION   -----------------SOLUTION 1---------------   Catching the exception  Not recommended especially for reason  3    Create a custom LinearLayoutManager as the following and set it to the ReyclerView      public class CustomLinearLayoutManager extends LinearLayoutManager                  Generate constructors               Override             public void onLayoutChildren RecyclerView Recycler recycler  RecyclerView State state                     try                        super onLayoutChildren recycler  state                      catch  IndexOutOfBoundsException e                         Log e TAG   Inconsistency detected                                                 Then set RecyclerVIew Layout Manager as follow   recyclerView setLayoutManager new CustomLinearLayoutManager activity      -----------------SOLUTION 2---------------   Disable item animations  fixes the issue if it caused de to reason  1     Again  create a custom Linear Layout Manager as follow       public class CustomLinearLayoutManager extends LinearLayoutManager                  Generate constructors                Override              public boolean supportsPredictiveItemAnimations                      return false                             Then set RecyclerVIew Layout Manager as follow   recyclerView setLayoutManager new CustomLinearLayoutManager activity      -----------------SOLUTION 3---------------   This solution fixes the issue if it caused by reason  3  You need to make sure that you are using the notify methods in the correct way  Alternatively  use DiffUtil to handle the change in a smart  easy  and smooth way  Using DiffUtil in Android RecyclerView   -----------------SOLUTION 4---------------   For reason  2  you need to check all data access to recycler list and make sure that there is no modification on another thread

User · Answer

This problem is caused by RecyclerView Data modified in different   thread   Can confirm threading as one problem and since I ran into the issue and RxJava is becoming increasingly popular  make sure that you are using  observeOn AndroidSchedulers mainThread    whenever you re calling notify whatever changed    code example from adapter   myAuxDataStructure getChangeObservable   observeOn AndroidSchedulers mainThread    subscribe new Observer lt AuxDataStructure gt                       Override     public void onNext AuxDataStructure o             notify here

User · Answer

This bug is still not fixed in 23 1 1  but a common workaround would be to catch the exception

User · Answer

This problem is caused by RecyclerView Data modified in different thread  The best way is checking all data access  And a workaround is wrapping LinearLayoutManager   Previous answer  There was actually a bug in RecyclerView and the support 23 1 1 still not fixed    For a workaround  notice that backtrace stacks  if we can catch this Exception in one of some class it may skip this crash  For me  I create a LinearLayoutManagerWrapper and override the onLayoutChildren   public class WrapContentLinearLayoutManager extends LinearLayoutManager             constructor      Override     public void onLayoutChildren RecyclerView Recycler recycler  RecyclerView State state            try               super onLayoutChildren recycler  state             catch  IndexOutOfBoundsException e                Log e  TAG    meet a IOOBE in RecyclerView                        Then set it to RecyclerView   RecyclerView recyclerView    RecyclerView findViewById R id recycler view    recyclerView setLayoutManager new WrapContentLinearLayoutManager activity  LinearLayoutManager HORIZONTAL  false      Actually catch this exception  and seems no any side-effect yet    Also  if you use GridLayoutManager or StaggeredGridLayoutManager you must create a wrapper for it   Notice  The RecyclerView may be in a wrong internal state

User · Answer

My problem was that even though i clear both the array list containing the data model for the recycler view  i did not notify the adapter of that change  so it had stale data from previous model  Which caused the confusion about the view holder position  To Fix this always notify the adapter that the data-set as changed before updating again

User · Answer

I got the same problem and I have read that this happened in Samsung phones only   But the reality showed that this happens in a lot of brands   After testing I realized that this happens only when you scroll fast the RecyclerView and then you go back either with the back button or the Up button  So I put inside Up button and onBackpressed the below snippet   someList   new ArrayList lt  gt     mainRecyclerViewAdapter   new MainRecyclerViewAdapter this  someList  this   recyclerViewMain setAdapter mainRecyclerViewAdapter   finish      With this solution you just load a new Arraylist to the adapter and new adapter to recyclerView and then you finish activity   Hope it helps someone

User · Answer

Thanks to  Bolling idea I have implement to support to avoid any nullable from List public void setList ArrayList lt ThisIsAdapterListObject gt   newList          get the current items     if  ThisIsAdapterList    null            int currentSize   ThisIsAdapterList size            ThisIsAdapterList clear              tell the recycler view that all the old items are gone         notifyItemRangeRemoved 0  currentSize              if   newList    null            if  ThisIsAdapterList    null                ThisIsAdapterList   new ArrayList lt ThisIsAdapterListObject gt                       ThisIsAdapterList addAll  newList             tell the recycler view how many new items we added         notifyItemRangeInserted 0   newList size

User · Answer

The error can be caused by your changes being inconsistent with what you are notifying  In my case   myList set position  newItem   notifyItemInserted position     What I of course had to do   myList add position  newItem   notifyItemInserted position

User · Answer

If the problem occurs after multi touch you can disable multi touch with  android splitMotionEvents  false     in layout file

User · Answer

In my case I was changing the data previously inside a thread with mRecyclerView post new Runnable     and then again later changed data in the UI thread  which caused inconsistency

User · Answer

In my case  adapter data changed  And i was wrongly use notifyItemInserted   for these changes  When i use notifyItemChanged  the error has gone away

User · Answer

I faced this issue once  and I solved this by wrapping the LayoutManager and disabling predictive animations   Here an example   public class LinearLayoutManagerWrapper extends LinearLayoutManager      public LinearLayoutManagerWrapper Context context        super context          public LinearLayoutManagerWrapper Context context  int orientation  boolean reverseLayout        super context  orientation  reverseLayout          public LinearLayoutManagerWrapper Context context  AttributeSet attrs  int defStyleAttr  int defStyleRes        super context  attrs  defStyleAttr  defStyleRes           Override   public boolean supportsPredictiveItemAnimations         return false          And set it to RecyclerView   RecyclerView LayoutManager mLayoutManager   new LinearLayoutManagerWrapper context  LinearLayoutManager VERTICAL  false

User · Answer

Problem occured for me only when   I created the Adapter with an empty list  Then I inserted items and called notifyItemRangeInserted   Solution   I solved this by creating the Adapter only after I have the first chunk of data and initialzing it with it right away  The next chunk could then be inserted and notifyItemRangeInserted called with no problem

[android] RecyclerView and java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder in Samsung devices

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