最初将index设置为-1，当您单击该项时，它将更改特定项的颜色

index=-1;

public void onBindViewHolder(final ViewHolder holder, final int position) {
      

        holder.view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                index=position;
                notifyDataSetChanged();
            }
        });
        if(index==position){
            holder.view.setBackgroundColor(Color.parseColor("#567845"));
            holder.tv1.setTextColor(Color.parseColor("#ffffff"));
        }
        else
        {
            holder.view.setBackgroundColor(Color.parseColor("#ffffff"));
            holder.tv1.setTextColor(Color.parseColor("#000000"));
        }

    }