java.lang.IllegalArgumentException: Called attach on a child which is not detached: ViewHolder{40e612c0 position=2 id=-1, oldPos=-1, pLpos:-1 no parent} about recyclerview-animators HOT 8 CLOSED

I add a headview for RecyclerView and use notifyItemRangeChanged(0, mDatas.size()) in adapter,this problem appeared. finally, I fixed it by change notifyItemRangeChanged(0, mDatas.size()) to notifyItemRangeChanged(1, mDatas.size()), it worked fine.

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Smooth scrolling before animation finishes randomly causes this crash.

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@ypresto Hello, I can see that your fix is included in library version 2.2.6, but I'm using version 2.2.7 of the library and can still see this issue happening.
I'm not using any headers or footers, just a homogeneous list.
When replacing data, I always clear all the items like this in my adapter:

  data.clear();
  data.addAll(newData);

Where data is a List of items.
I do use smoothScrollToPosition after updating the items.

I also use DiffUtil to calculate changes in my adapter and usually, everything works fine, but in very rare cases it crashes with java.lang.IllegalArgumentException: Called attach on a child which is not detached. I have no how to reproduce it, I only see a few % of users getting this on my crash reporting tool.

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I also use header with Recyclerview. when i app item at 1 position because at 0 position header is present but when i add item at 1 position .i get new data added at 2 position instead of 1 position in recyclerview. so i try to add item at 0 position and notifyItemRangeChanged to start from 1. still my app crash.

if (!userInfoList.contains(peopleDetailInfo)) {
userInfoList.add(0,peopleDetailInfo);
notifyItemInserted(0);
notifyItemRangeChanged(1,userInfoList.size());
}

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Hi @wasabeef , Can you show the code? If your code is on gitHub and open, share repo link.

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Hi,

Sorry I can't, I put together a sample app to show the crash, but it does happen so I guess something else is going on in our code.

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Related, with a repro case. Can't promise it's the same issue, but the symptom is the same.

https://code.google.com/p/android/issues/detail?id=172416

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@xiong-it thanks

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