class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        View view;
        TextView title,phone;
        LinearLayout contact_select_layout;
        ViewHolder(@NonNull View itemView) {
            super(itemView);
            view = itemView;
            title= itemView.findViewById(R.id.contact_name);
            phone= itemView.findViewById(R.id.contact_phone);
            contact_select_layout=itemView.findViewById(R.id.contact_select_layout);
        }

        @Override
        public void onClick(View v) {
            list.setSelected(!list.isSelected());
            v.setBackgroundColor(
                    list.isSelected()? Color.parseColor("#FF5722"):
                            Color.parseColor("#070707"));
        }
    }