控制器：

List<TextEditingController> areaController = [];

代码：

Column(
      children: [
        ListView.builder(
          shrinkWrap: true,
          itemCount: 5,
          itemBuilder: (context, index) {
            areaController.add(TextEditingController());
            return TextField(
              controller: areaController[index],
              keyboardType: TextInputType.number,
              onChanged: (text) {},
              decoration: const InputDecoration(
                labelText: "Area",
              ),
            );
          },
        ),
        const SizedBox(
          height: 30,
        ),
        ElevatedButton(
          child: const Text('Submit'),
          onPressed: () {
            //get the value of every index textfield
          },
        ),
      ],
    ),

如何在Listview中设置flutter textfield并在提交时获取每个textfield的值