[Error] When ItemAdapter.Set() get lower item count then before about fastadapter HOT 8 CLOSED

@FabianTerhorst that's how the RecyclerView adapter works.

How have you removed the item?

In general you should call

itemAdapter.remove(int position);

This will not only remove the item at the given position, but it will also notify the adapter about the removed item so it can animate

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@mikepenz when im calling mItemAdapter.notifyDataSetChanged(); it doesn´t crashes too, but when the data comes from a api for example and you get 3 items and before you got 4 items, you couldn´t know that.

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@FabianTerhorst then you should provide this via a new List and not by modifiying the previously set list

This works:

As mentioned this is the way how adapters work with the RecyclerView that's no behavior changed by this lib

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@mikepenz thanks, creating a new ArrayList works.

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@FabianTerhorst to get a bit more into detail:

Yes it may work if we call notifyDataSetChanged(), but that's not true. If you set a list to the ItemAdapter you change all items of this adapter, but this one may isn't the only adapter providing items, and there are other adapters which also host items inside the RecyclerView as this is the case, we want to animate the change of items, so i call

notifyAdapterItemRangeChanged

and make sure the Adapter know how to correclty animate the changed items.

So in case when set is used, it is important that we really set a new list. If we set the previous used list it will cause problems inside the Adapter. If you modify items of the current list, the specific methods for those actions should be used

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Please refer the stackoverflow post

http://stackoverflow.com/questions/35653439/recycler-view-inconsistency-detected-invalid-view-holder-adapter-positionviewh

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@drayan85 that solution is only changes name of the exception. After catching IOOB exception, another exception Added View has RecyclerView as parent but view is not a real child. Unfiltered index:n starts to throw. I managed to fix it by wrapping set/add methods with Handler.postDelayed. But I still get Scrapped or attached views may not be recycled. isScrap:false isAttached:true, if I scroll down fast.

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I had similiar issue, and also this solution has helped me, after I've added new item to my RV:
recyclerView.getRecycledViewPool().clear();
adapter.notifyDataSetChanged();

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