购物车单击加号减号按钮可以实现数量加减

final   TextView   count_shopCar=viewHolder.textView_count_shopCar;
  viewHolder.textView_jia.setOnClickListener(new OnClickListener() {
   
   @Override
   public void onClick(View v) {
    String s=count_shopCar.getText().toString();
      int count=Integer.parseInt(s)+1;
     
      count_shopCar.setText(count+"");
   }
  }) ;