Android - RecyclerView notifyDatasetChanged not updating layout view

Question

I have an Adapter for a RecyclerView. The adapter has a property size, that can be either SMALL or LARGE.

Depending on the property, the layouts loaded for viewholders will be different.

I have a button to change this property, however after I set it, and if I call notifyDataSetChanged() the views are not updated.

I have also tried requestLayout and invalidate without success. This is, onCreateViewHolder is never called again.

@htafoya Please share your code so we can help you out. If you are update particular record use notifyitemchanged() instead of notifyDataSetChanged(). — Andy Developer, Jul 11 '17 at 07:20

score 0 · Answer 1 · answered Jul 11 '17 at 07:14

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notifyDataSetChanged() call onBindViewHolder() when using RecyclerView.It doesnot call onCreateViewHolder. You can try setAdapter() for the above problem.

answered Jul 11 '17 at 07:14

GAGAN BHATIA

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taug · Answer 2 · 2017-07-11T07:33:02.277

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One way to do is like calling

recyclerView.setAdapater(new YourCustomRecylcerViewAdapter(yourProperty, listToUpdate))

whenever you change the property. This will invoke the onCreateViewHolder() of adapter.

edited Jul 11 '17 at 07:33

answered Jul 11 '17 at 07:16

taug

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score 0 · Answer 3 · answered Jul 11 '17 at 07:37

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Well I got it, it was because before onCreateViewHolder, getItemViewType is called.

If no new view is set then it won't be called. So I had to create a new viewType for each of the small views and problem solved :).

answered Jul 11 '17 at 07:37

htafoya

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Android - RecyclerView notifyDatasetChanged not updating layout view

3 Answers3