Need an example about RecyclerView.Adapter.notifyItemChanged(int position, Object payload)

Question

According to RecyclerView documentation about medthod notifyItemChanged(int position, Object payload)

Notify any registered observers th

Answer 1

If you want to update not all holder View but just part of it, this method is what you need.

Image that you have following ViewHolder

public class ViewHolder extends RecyclerView.ViewHolder {
        public final TextView tvPlayer;
        public final TextView tvScore;

        public ViewHolder(View view) {
            super(view);
            tvPlayer = (TextView) view.findViewById(R.id.tv_player);
            tvScore = (TextView) view.findViewById(R.id.tv_score);
        }

    }

And somewhere in your code you call adapter to update single TextView - tvScore

mRecyclerViewAdapter.notifyItemChanged(position, new Integer(4533));

[...]

onBindViewHolder(ViewHolder holder, int position, List payloads) catches callback at first. If payloads doesn't match your requirements you have to obligatory call super class super.onBindViewHolder(holder,position, payloads); which trigger onBindViewHolder(ViewHolder holder, int position) for other cases.

     // Update only part of ViewHolder that you are interested in
     // Invoked before onBindViewHolder(ViewHolder holder, int position)
        @Override
        public void onBindViewHolder(ViewHolder holder, int position, List