how to scroll search widget along with the list view result flutter - flutter

Question

How to scroll the search widget along with the list view result flutter whenever I use singlechildscrollview it gives an error.Help me to solve the issue.
How to scroll the search widget along with the list view result flutter whenever I use singlechildscrollview it gives an error.Help me to solve the issue
import 'package:coronavirus_app/Services/states_services.dart';
import 'package:coronavirus_app/resources/sizeconfig.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:shimmer/shimmer.dart';
import '../Modal/world_countries_modal.dart';
import '../resources/colormanager.dart';
import '../resources/routesmanager.dart';
class CountriesListScreen extends ConsumerStatefulWidget {
const CountriesListScreen({Key? key}) : super(key: key);
#override
ConsumerState<CountriesListScreen> createState() =>
_CountriesListScreenState();
}
class _CountriesListScreenState extends ConsumerState<CountriesListScreen> {
final TextEditingController searchcontroller = TextEditingController();
#override
Widget build(BuildContext context) {
SizeConfig().init(context);
StatesServices services = StatesServices();
final countrydata = ref.watch(countrydataProvider);
return Scaffold(
appBar: AppBar(
elevation: 0,
backgroundColor: Theme.of(context).scaffoldBackgroundColor,
),
body: countrydata.when(
error: (err, stack) => Text('Error: ${err.toString()}'),
loading: () => Shimmer.fromColors(
baseColor: ColorManager.grey,
highlightColor: ColorManager.lightGrey,
child: ListView.builder(
itemCount: 5,
itemBuilder: ((context, index) {
return Column(
children: [
ListTile(
title: Container(
height: getProportionateScreenHeight(20),
width: getProportionateScreenWidth(89),
color: ColorManager.white,
),
leading: SizedBox(
height: getProportionateScreenHeight(100),
width: getProportionateScreenWidth(50),
child: Container(
color: ColorManager.white,
)),
subtitle: Container(
height: getProportionateScreenHeight(20),
width: getProportionateScreenWidth(89),
color: ColorManager.white,
),
)
],
);
})),
),
data: ((data) {
List<WorldCountriesModal> countrieslist =
data.map((e) => e).toList();
return Column(children: [
SizedBox(
height: getProportionateScreenHeight(50),
width: double.infinity,
child: TextFormField(
controller: searchcontroller,
onChanged: (value) {
setState(() {});
},
decoration: InputDecoration(
contentPadding:
const EdgeInsets.symmetric(vertical: 10),
hintText: 'Search with country name',
prefixIcon: const Icon(Icons.search),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(50))),
),
),
Expanded(
child: ListView.builder(
itemCount: countrieslist.length,
itemBuilder: ((context, index) {
var data = countrieslist[index];
var countrydata = countrieslist[index].country;
if (searchcontroller.text.isEmpty) {
return Column(
children: [
InkWell(
onTap: (() {
FocusScope.of(context).unfocus();
Navigator.pushNamed(context, Routes.detail,
arguments: data);
}),
child: ListTile(
title: Text(data.country.toString()),
leading: SizedBox(
height: getProportionateScreenHeight(100),
width: getProportionateScreenWidth(50),
child: Image(
image: Image.network(data
.countryInfo!.flag
.toString())
.image),
),
subtitle: Text(data.cases.toString()),
),
)
],
);
} else if (countrydata!
.toLowerCase()
.contains(searchcontroller.text.toLowerCase())) {
return Column(
children: [
InkWell(
onTap: (() {
FocusScope.of(context).unfocus();
Navigator.pushNamed(context, Routes.detail,
arguments: data);
}),
child: ListTile(
title: Text(data.country.toString()),
leading: SizedBox(
height: getProportionateScreenHeight(100),
width: getProportionateScreenWidth(50),
child: Image(
image: Image.network(data
.countryInfo!.flag
.toString())
.image),
),
subtitle: Text(data.cases.toString()),
),
)
],
);
} else {
return Container(
height: 0,
);
}
})),
),
]);
})
}
}

Answer 1

ListView.builder(
shrinkWrap: true,
primary: false

Answer 2

Hey If you want to use singlechildscrollview then you need to assign
ListView.builder(
shrinkWrap: true
to your ListView.builder.
Because you can't assign the 2 scroll views to your screen at a time.

Answer 3

Put your widgets in SingleChildScrollView widget as the following example:
return Scaffold(
appBar: AppBar( ..........) ,
body: Container(
margin: const EdgeInsets.only(top: 15, right: 10),
alignment: Alignment.topRight,
width: double.infinity,
height: double.infinity,
==> child:SingleChildScrollView(
scrollDirection: Axis.vertical,
child: .......