我想当我点击+按钮时，它会显示下3个容器，在listVeiw中是水平方向。这是我的代码。当我第一次点击它的工作，但它不工作的其他水龙头

import 'package:flutter/material.dart';

class FindCars extends StatefulWidget {
  const FindCars({Key? key}) : super(key: key);

  @override
  State<NewWayToFindCars> createState() => _NewWayToFindCarsState();
}

class _NewWayToFindCarsState extends State<NewWayToFindCars> {
  var pricesListNumber = 10;
  int counter = 1;

  List months = [
    'يناير',
    'فبراير',
    'مارس',
    'ابريل',
    'مايو',
    'يونيو',
    'يوليو',
    'اغسطس',
    'سبتمبر',
    'اكتوبر',
    'نوفمبر',
    'ديسمبر'
  ];

  var currentMonth = new DateTime.now().month;
  var currentDay = new DateTime.now().day;

  late ScrollController _scrollController;

  @override
  void initState() {
    _scrollController = ScrollController();
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    print(months[currentMonth - 1]);
    print(currentDay);
    print(DateTime.now());
    return Container(
      width: MediaQuery.of(context).size.width,
      height: MediaQuery.of(context).size.height,
      child: Directionality(
        textDirection: TextDirection.rtl,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: [
            Text(
              '${months[currentMonth - 1]}  2022',
              style: TextStyle(
                fontSize: 20,
                fontWeight: FontWeight.bold,
                color: Colors.black,
                fontFamily: 'cairo',
              ),
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                InkWell(
                  onTap: () {
                    
                    _scrollController.animateTo(-200,
                        duration: const Duration(milliseconds: 500),
                        curve: Curves.easeInOut);
                  },
                  child: Container(
                    child: Icon(Icons.remove, size: 22),
                    width: 50,
                    height: 50,
                    decoration: BoxDecoration(
                      color: Color(0xFFDCEDC8).withOpacity(0.5),
                      border: Border.all(
                        color: Color(0xFFDDE7DD).withOpacity(0.5),
                        width: 2.5,
                      ),
                      borderRadius: BorderRadius.only(
                        topLeft: Radius.circular(10),
                        bottomLeft: Radius.circular(10),
                      ),
                    ),
                  ),
                ),
                InkWell(
                  onTap: () {
                    _scrollController.animateTo(200,
                        duration: const Duration(milliseconds: 500),
                        curve: Curves.easeInOut);
                  },
                  child: Container(
                    child: Center(child: Icon(Icons.add_sharp, size: 22)),
                    width: 50,
                    height: 50,
                    decoration: BoxDecoration(
                      color: Color(0xFFDCEDC8).withOpacity(0.25),
                      border: Border.all(
                        color: Color(0xFFDDE7DD).withOpacity(0.5),
                        width: 2.5,
                      ),
                      borderRadius: BorderRadius.only(
                        topRight: Radius.circular(10),
                        bottomRight: Radius.circular(10),
                      ),
                    ),
                  ),
                ),
              ],
            ),
            Container(
              width: MediaQuery.of(context).size.width,
              height: MediaQuery.of(context).size.height * 0.1,
              child: ListView(
                controller: _scrollController, // scroll contoller
                scrollDirection: Axis.horizontal,
                children: new List.generate(
                  pricesListNumber,
                  (index) => Padding(
                    padding: const EdgeInsets.all(8.0),
                    child: Container(
                      child: Center(child: Text('${currentDay++}')),
                      decoration: BoxDecoration(
                        boxShadow: [
                          BoxShadow(
                            color: Colors.grey.withOpacity(0.5),
                            spreadRadius: 5,
                            blurRadius: 7,
                            offset: Offset(0, 3), // changes position of shadow
                          ),
                        ],
                        color: Color(0xFFDCEDC8).withOpacity(0.5),
                        border: Border.all(
                          color: Color(0xFFDDE7DD).withOpacity(0.5),
                          width: 2.5,
                        ),
                        borderRadius: BorderRadius.circular(10),
                      ),
                      height: 50,
                      width: MediaQuery.of(context).size.width * 0.25,
                    ),
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

这里是我的代码的UI，现在它只在第一次点击把它不工作，直到最后。你能帮我吗？