Deleting multiple (50+) items from recycler view is throwing exception (Stacktrace attached) #171
Description
The following is the recycler view defined with the animation:
mRecyclerView = rootView.findViewById(R.id.list1);
mRecyclerView.setLayoutManager(new GridLayoutManager(fragmentActivity, 2));
mRecyclerView.setHasFixedSize(true);
mAdapter = new MediaGridAdapter(fragmentActivity, mediaModels);
MyScaleInAnimator animator = new MyScaleInAnimator(mAdapter);
animator.setAddDuration(100);
animator.setRemoveDuration(100);
mRecyclerView.setItemAnimator(animator);
The following is how I remove items from the recycler view:
public void removeData(String fileType, int position, Context context) {
mediaModels.remove(position);
notifyItemRemoved(position);
}
(When I am deleting multiple items, this method is called multiple times iterativey).
Problem:
When I select a small numbers of items from the recycler view, the above delete method functions as expected. But If I select a large number of items(50-100) & delete immediately, the following exception is thrown:
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.akl.alldrive, PID: 26558 java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{f308d5b position=54 id=-1, oldPos=74, pLpos:54 scrap [attachedScrap] tmpDetached no parent} android.support.v7.widget.RecyclerView{7b12cb3 VFED.V... ......I. 0,147-1080,1857 #7f0a0099 app:id/list1}, adapter:jp.wasabeef.recyclerview.adapters.ScaleInAnimationAdapter@780c270, layout:android.support.v7.widget.GridLayoutManager@fb119e9, context:com.akl.alldrive.activities.BaseActivity@2c3cc96 at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:5715) at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5898) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858) at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854) at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230) at android.support.v7.widget.GridLayoutManager.layoutChunk(GridLayoutManager.java:557) at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517) at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612) at android.support.v7.widget.GridLayoutManager.onLayoutChildren(GridLayoutManager.java:171) at android.support.v7.widget.RecyclerView.dispatchLayoutStep1(RecyclerView.java:3875) at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3639) at android.support.v7.widget.RecyclerView.consumePendingUpdateOperations(RecyclerView.java:1888) at android.support.v7.widget.RecyclerView$1.run(RecyclerView.java:407) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:966) at android.view.Choreographer.doCallbacks(Choreographer.java:778) at android.view.Choreographer.doFrame(Choreographer.java:710) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:952) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6798) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #4 Process: com.akl.alldrive, PID: 26558 java.lang.RuntimeException: An error occurred while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:353) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383) at java.util.concurrent.FutureTask.setException(FutureTask.java:252) at java.util.concurrent.FutureTask.run(FutureTask.java:271) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636) at java.lang.Thread.run(Thread.java:764) Caused by: java.lang.IllegalStateException: Cannot call this method while RecyclerView is computing a layout or scrolling android.support.v7.widget.RecyclerView{7b12cb3 VFED.V... ......I. 0,147-1080,1857 #7f0a0099 app:id/list1}, adapter:jp.wasabeef.recyclerview.adapters.ScaleInAnimationAdapter@780c270, layout:android.support.v7.widget.GridLayoutManager@fb119e9, context:com.akl.alldrive.activities.BaseActivity@2c3cc96 at android.support.v7.widget.RecyclerView.assertNotInLayoutOrScroll(RecyclerView.java:2880) at android.support.v7.widget.RecyclerView$RecyclerViewDataObserver.onItemRangeRemoved(RecyclerView.java:5308) at android.support.v7.widget.RecyclerView$AdapterDataObservable.notifyItemRangeRemoved(RecyclerView.java:12032) at android.support.v7.widget.RecyclerView$Adapter.notifyItemRemoved(RecyclerView.java:7231) at com.akl.alldrive.adapters.MediaGridAdapter.removeData(MediaGridAdapter.java:60)
How to get around this issue?