/Java/Collapse recycler view on new item click

Collapse recycler view on new item click

holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            final boolean visibility = holder.details.getVisibility()==View.VISIBLE;

            if (!visibility)
            {
                holder.itemView.setActivated(true);
                holder.details.setVisibility(View.VISIBLE);
                if (prev_expanded!=-1 && prev_expanded!=position)
                {
                    recycler.findViewHolderForLayoutPosition(prev_expanded).itemView.setActivated(false);
                    recycler.findViewHolderForLayoutPosition(prev_expanded).itemView.findViewById(R.id.cpl_details).setVisibility(View.GONE);
                }
                prev_expanded = position;
            }
            else
            {
                holder.itemView.setActivated(false);
                holder.details.setVisibility(View.GONE);
            }
            TransitionManager.beginDelayedTransition(recycler);              
        }
});

Source: stackoverflow.com

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