Pages not maintaing state while scrolling

I created this multiple pages which has different widgets inside it like TextFormField, DropDown, checkBox etc. I created a widget that selects pages on basis of question type fetch from api. This question selector widget is called inside ListView.builder. I am using cubit to manage state.Each page has it different corresponding cubit. The problem is each time scroll the widget state is lost.

My ListView.builder

 ListView.builder(
    itemCount: state.question[0].groups![0].items!.length,
    itemBuilder: (BuildContext context, int index) {
       return fetchQuestionWidget(
          question: state.question[0].groups![0].items![index],
           hintText: "",
           imageList: imageList ?? [],
           );
     });

My widget selector

Widget fetchQuestionWidget(
{JsonItems? question,
String? collectionId,
String? collectionCode,
String? hintText,
String? optionCode,
List<Options>? options,
bool? isParentWidget,
List<File>? imageList,
PageStorageKey? pageStorageKey}) {
    if (question?.type == QuestionTypeConstant.kText) {
       return TextFieldQuestionWidget(
       question: question!,
       hintText: hintText!,
     );
    } else if (question?.type == QuestionTypeConstant.kDate) {
      return DatePickerQuestionWidget(
      question: question!,
     );
    } else if (question?.type == QuestionTypeConstant.kSelection) {
   
   if (question?.renderType == QuestionTypeConstant.kDropdown &&
    !question!.multiple!) {
   return DropDownQuestionWidget(
    question: question,
    options: options,
    key: pageStorageKey,
  );
  } else if ((question?.renderType == QuestionTypeConstant.kDropdown &&
        question!.multiple!) ||
       question?.renderType == QuestionTypeConstant.kTable) {
       return MultiSelectDropDownQuestionWidget(
       question: question!,
    );
  } else if (question?.renderType == QuestionTypeConstant.kSelectionButton &&
    question?.code != 'active') {
        return SelectionButtonQuestionWidget(
        question: question!,
   );
  } else if (question?.renderType == QuestionTypeConstant.kCheckBox) {
  return QtCheckBox(
    question: question!,
    );
  } else {
    return Text('#${question?.type}');
  }
} else if (question?.type == QuestionTypeConstant.kNumber) {
return NumberTextFieldQuestionWidget(
  question: question!,
);
} else if (question?.type == QuestionTypeConstant.kHeading) {
  return HeadingQuestionWidget(question: question!);
} else if (question?.type == QuestionTypeConstant.kPhoto) {
return PhotosQuestionWidget(
     question: question!,
     imageList: imageList,
    );
    } else {
return Text('#${question?.type}');
   }
}