i want to add a row in listview.builder but it goes blank - flutter

Question

i want to add a row ( list of buttons that do filter the list), i tried wrapping listTile in column, listview.builde in column but it doesn't work. tried wrapping GetBuilder also but it doesn't work.
enter image description here
My Code :-
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:quizzy/data_controller.dart';
import '../models/showQuestion.dart';
class AllQuestionBank extends StatefulWidget {
const AllQuestionBank({Key? key}) : super(key: key);
#override
State<AllQuestionBank> createState() => _AllQuestionBankState();
}
class _AllQuestionBankState extends State<AllQuestionBank> {
final DataController controller = Get.put(DataController());
#override
Widget build(BuildContext context) {
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
controller.getQuestionList();
});
return Scaffold(
appBar: AppBar(
title: const Text(' Question Bank'),
),
body: GetBuilder<DataController>(
builder: (controller) => controller.QuestionList.isEmpty
? const Center(
child: Text('😔 NO DATA FOUND (: 😔'),
)
: ListView.builder(
itemCount: controller.QuestionList.length,
itemBuilder: (context, index) {
return ListTile(
title: showQuestion(controller.QuestionList[index]),
);
}),
),
);
}
}

Answer 1

You could redefine your ListView as:
ListView.builder(
itemCount: controller.QuestionList.length + 1,
itemBuilder: (context, index) {
if (index == 0) {
return WhateverRowYouWant();
}
return ListTile(
title: showQuestion(controller.QuestionList[index - 1]),
);
}),

Answer 2

You can just define the scroll direction to be horizontal.
ListView.builder(
itemCount: controller.QuestionList.length,
scrollDirection: Axis.horizontal, <- added this line
itemBuilder: (context, index) {
return ListTile(
title: showQuestion(controller.QuestionList[index]),
);
}),
You can also find an example from the official docs here

Answer 3

Try this.
physics: NeverScrollableScrollPhysics(), shrinkWrap: true,

Answer 4

To add Row() on top you need Column() widget for sure
After that, you have to wrap ListView.builder() with the Expanded() widget this will help you
Ex.
return Scaffold(
body: SafeArea(
child: Column(
children: [
Row(
children: [
TextButton(
onPressed: () {},
child: Text('Filter'),
),
],
),
Expanded(
child: GetBuilder<DataController>(
builder: (controller) => controller.QuestionList.isEmpty
? const Center(
child: Text('😔 NO DATA FOUND (: 😔'),
)
: ListView.builder(
shrinkWrap: true,
itemCount: controller.QuestionList.length,
itemBuilder: (context, index) {
return ListTile(
title: showQuestion(controller.QuestionList[index]),
);
},
),
),
),
],
),
),
);
Please, try this!!

Answer 5

This is the combination of GetxController and ListView with a top row I use:
class MyController extends GetxController {
var isRunning = true.obs; // set to isRunning.value = false; if done loading QuestionList
RxList<ProductModel> QuestionList = <ProductModel>[].obs;
}
Obx( () => controller.isRunning.isTrue
? 'Loading'
: ListView.builder(
itemCount: controller.QuestionList.length + 1,
itemBuilder: (BuildContext context, int index) {
if (index == 0) {
return Text('TOP ROW');
}
return ListTile(
title: showQuestion(controller.QuestionList[index - 1]),
);
}),
);