How can I select only one checkbox in Recyclerview and notifydataset changed

Question

In my code I have create recyclerview with check box and default one item selected already. now I want when select other item checkbox so deselect all other items mean one i

Answer 1

You can use below code; it will surely help you guys,

int selectedPosition=0;

 if (selectedPosition == position) {
            holder.itemView.setSelected(true); //using selector drawable


            GradientDrawable drawable = (GradientDrawable) holder.ll_portal.getBackground();
            drawable.setColor(getResources().getColor(R.color.darkorange));
            holder.tvPortalName.setTextColor(Color.parseColor("#FFFFFF"));


        } else {
            holder.itemView.setSelected(false);
            GradientDrawable drawable = (GradientDrawable) holder.ll_portal.getBackground();
            drawable.setColor(getResources().getColor(R.color.white));
            holder.tvPortalName.setTextColor(Color.parseColor("#000000"));
        }

        final int finalPosition = position;
        holder.ll_portal.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                totalDineInOrder= String.valueOf(gallaryModels.get(position).getDineInTotalOrder());
                totalPickupOrder= String.valueOf(gallaryModels.get(position).getPickupTotalOrder());
                selectedPosition= finalPosition;
                notifyDataSetChanged();
            }
        });