RangeError (index): Index out of range: no indices are valid: 0 - Flutter
Question
I'm new to flutter. When I'm trying to add list data to the widget RealAppcard of Text the list data is '${extractRooms[0]}' I'm getting this error RangeError (index): Index out of range: no indices are valid: 0 but without this data added everything is working what am I doing wrong here?
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:gs/card_real_app.dart';
import 'package:gs/homescreen.dart';
import 'package:gs/network.dart';
import 'package:gs/pic_model.dart';
import 'package:gs/reusable_card.dart';
import 'package:dotted_border/dotted_border.dart';
import 'Custom_textfield.dart';
import 'order.dart';
import 'dart:convert' as convert;
import 'package:http/http.dart' as http;
import 'ordertile.dart';
const cardinactiveColor = Color(0xFF0a1529);
const cardActivecolor = Color(0xFFffb700);
var orderData;
// List<Order> orders = <Order>[];
List<Order> OrdersItems = [];
List<dynamic> feedbacks = [];
List<dynamic> pics = [];
late final String? picData;
late final String? statusData;
List<dynamic> filteredOrdersItems = [];
List<dynamic> feedbpics = [];
// final assetController = TextEditingController();
String currentSearch = '';
// String? statusOrder;
// String? picOrder;
// String? myStr = 'shalom';
List<dynamic> extractRooms = [];
List<dynamic> extractStatus = [];
List<dynamic> extractType = [];
List<dynamic> extractMap = [];
dynamic getRooms() {
filteredOrdersItems.forEach((item) {
extractRooms.insert(0, item.rooms);
// print('${item.pic}');
});
}
dynamic getType() {
filteredOrdersItems.forEach((item) {
extractType.insert(0, item.type);
// print('${item.pic}');
});
}
dynamic getSatausData() {
filteredOrdersItems.forEach((item) {
extractStatus.insert(0, item.status);
// print('${item.pic}');
});
}
dynamic getPicData() {
filteredOrdersItems.forEach((item) {
extractMap.insert(0, item.pic);
// print('${item.pic}');
});
}
var data;
var parsedJsonText = jsonDecode(data);
class searchScreen extends StatefulWidget {
// firstScreen({Key? key}) : super(key: key);
@override
State<searchScreen> createState() => _searchScreenState();
}
class _searchScreenState extends State<searchScreen> {
@override
void initState() {
super.initState();
getOrders().then((
OrderItems,
) {
setState(() {
// this.OrderItems = OrderItems;
// filteredOrdersItems = OrderItems;
});
});
}
// void initState() {
// super.initState();
// getOrders().then((
// feedbackItems,
// ) {
// setState(() {
// // this.feedbackItems = feedbackItems;
// // this.filteredFeedbackItems = feedbackItems;
// });
// });
// }
// List<OrderModel> orders = <OrderModel>[];
Color cardColor = cardinactiveColor;
void updateColor() {
if (cardColor == cardinactiveColor) {
cardColor = cardActivecolor;
} else {
cardColor = cardinactiveColor;
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: [
// ignore: prefer_const_literals_to_create_immutables
Container(
height: 400,
color: Color(0xFF0a1529),
child: Column(
children: [
const Icon(
Icons.real_estate_agent_outlined,
color: Colors.white,
size: 80,
),
// data: Icons.real_estate_agent_outlined,
SizedBox(height: 5),
Text(
'ברוכים הבאים לאפליקצית חיפוש נכסים',
style: TextStyle(
fontSize: 20.0,
color: Colors.blue,
),
),
SizedBox(height: 15),
CustomTextField(
data: Icons.search,
// controller: null,
hintText: 'חיפוש נכס',
enabled: true,
// controller: assetController,
),
SizedBox(height: 15),
DottedBorder(
color: Color(0xFFffb700),
strokeWidth: 1,
child: Card(
color: Colors.transparent,
elevation: 0,
child: Container(
width: 400,
height: 140,
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: const [
Padding(
padding: EdgeInsets.all(10.0),
child: Icon(
FontAwesomeIcons.crown,
// Icons.workspace_premium,
color: Color(0xFFffb700),
),
),
Padding(
padding: EdgeInsets.all(10.0),
child: Text(
'מיוחדים',
style: TextStyle(
color: Colors.white,
),
),
),
],
),
Text(
'מוזמנים להתנסות במערכת הנפלאה',
style: TextStyle(
color: Color(0xFF8d8e98),
),
),
SizedBox(height: 20),
Row(
mainAxisAlignment: MainAxisAlignment.end,
crossAxisAlignment: CrossAxisAlignment.end,
children: [
GestureDetector(
onTap: () {},
child: Card(
color: cardColor,
child: Container(
child: Row(
children: [
ButtonTheme(
minWidth: 30.0,
height: 15.0,
child: RaisedButton(
color: Colors.amber,
child: Text(
'בצעו חיפוש',
style: TextStyle(
fontSize: 20,
),
),
onPressed: () async {
feedbacks = await getOrders();
// pics = await getPic();
// feedbpics =
// pics.where((element) {
// return element.id ==
// currentSearch;
// }).toList();
// print(feedbpics);
print(feedbacks);
filteredOrdersItems =
feedbacks.where((element) {
return element.address ==
currentSearch;
}).toList();
filteredOrdersItems
.forEach((item) {
print('${item.pic}');
});
// picData = getStatus();
// statusData = getPic();
// print('pic $picData');
// print('status $statusData');
// getPic();
getPicData();
getType();
getSatausData();
getRooms();
print(
'checking ${filteredOrdersItems[0]}');
print(
'list map${filteredOrdersItems}');
print('list $extractMap');
print(extractMap[0]);
print(
'status ${extractStatus[0]}');
print(
'rooms ${extractRooms[0]}');
// print(
// 'status ${extractMapStatus}');
setState(() {});
}),
),
// Text(
// 'בדקו עכשיו',
// style: TextStyle(
// color: Colors.white,
// ),
// ),
Icon(
FontAwesomeIcons.arrowRight,
// Icons.workspace_premium,
color: Color(0xFFffb700),
),
],
),
),
),
)
],
),
],
),
),
),
),
],
),
),
Card(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(24),
),
color: Colors.white,
elevation: 5,
child: Container(
width: 500,
height: 500,
decoration:
BoxDecoration(borderRadius: BorderRadius.circular(25)),
child: Column(
children: [
// Text('${feedbpics[0]}'),
if (filteredOrdersItems.isEmpty) ...{
Text(
"לא נמצאו תוצאות נסו שנית",
style: TextStyle(
fontSize: 20,
),
),
} else ...{
Text(
'${extractType[0]}',
style: TextStyle(
fontSize: 20,
),
),
SizedBox(height: 20),
Card(
elevation: 8,
child: Image.network(
'${extractMap[0]}',
width: 200,
height: 100,
),
),
},
// SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'כתובת מלאה',
style: TextStyle(
fontSize: 15,
fontWeight: FontWeight.bold,
color: Color(0xFFA435F0),
),
),
Text('ניקוד נכס'),
],
),
// SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
realAppCard(
text: 'חדרים',
quantity: '${extractRooms[0]}',
),
realAppCard(
text: 'גודל דירה',
quantity: '120',
),
realAppCard(
text: 'מחיר',
quantity: '1.5',
),
],
),
SizedBox(height: 10),
Card(
color: Colors.green,
elevation: 10,
child: Container(
width: 100,
height: 30,
child: Text(
'status',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20,
),
),
),
),
SizedBox(height: 5),
Center(
child: Text(
'''
הרשות פרסמה את ממצאי התחקיר שערכה על הרג כתבת אל ג'זירה,
ממנו עולה שהחיילים ירו בה בכוונה, למרות שראו שמדובר בעיתונאית.
לטענת התובע, הקליע, שהשימוש בו לא היה חוקי
''',
textAlign: TextAlign.center,
),
),
SizedBox(height: 5),
Card(
elevation: 2,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.only(
bottomRight: Radius.circular(10),
topRight: Radius.circular(10)),
side: BorderSide(width: 1, color: Colors.blueGrey)),
child: ListTile(
leading: Icon(Icons.message_outlined),
trailing: Text('משה כהן'),
title: Text('052-3567104'),
),
),
SizedBox(height: 5),
ElevatedButton(
onPressed: null,
child: Text('שליחת ווטסאפ'),
),
],
)),
// Center(
// child: Container(
// width: 300,
// child: TextField(
// decoration: const InputDecoration(
// border: OutlineInputBorder(), hintText: 'הקלידו הזמנה'),
// onChanged: (String newstr) {
// currentSearch = newstr;
// // print('first: ${currentSearch}');
// // print(newstr);
// // feedbackItems.forEach((element) {
// // print(element.status);
// // });
// },
// ),
// ),
// ),
// SizedBox(height: 20),
// ButtonTheme(
// minWidth: 200.0,
// height: 30.0,
// child: RaisedButton(
// color: Colors.amber,
// child: Text(
// 'בצעו חיפוש',
// style: TextStyle(
// fontSize: 20,
// ),
// ),
// onPressed: () async {
// feedbacks = await getOrders();
// print(feedbacks);
// filteredOrdersItems = feedbacks.where((element) {
// return element.id == currentSearch;
// }).toList();
// print(filteredOrdersItems);
// setState(() {});
// }),
// ),
// SizedBox(height: 10),
// ignore: sdk_version_ui_as_code
)
],
),
);
}
}
Future<List<dynamic>> getOrders() async {
String url =
'https://script.google.com/macros/s/AKfycbyT3xsBV2nrxgCotCA8-hyZ1DNTNt1ET0wuKilQZr29ac8pbpXMk7nMrCnz2_7NPW1j/exec';
var response = await http.get(Uri.parse(url));
var jsonData = convert.jsonDecode(response.body) as List;
String data = response.body;
// var parsedJson = json.decode(response.body);
// var orderModel = jsonDecode(data)[0]['pic'];
// print('this is my natun ${orderModel}');
// print('response body ${data}');
// print(jsonData);
return jsonData.map((json) => Order.fromJson(json)).toList();
// for (var order in jsonData) {
// OrdersItems.add(Order(order['id'], order['name'], order['status']));
// OrdersItems.forEach((element) {
// print("id : ${element.id}");
// });
// }
// // filteredOrdersItems =
// // OrdersItems.where((ord) => ord['id'] == 'test').toList();
// print(OrdersItems[1].id);
// print(OrdersItems);
// print(filteredOrdersItems);
// return OrdersItems;
}
// Future<List<dynamic>> getPic() async {
// String url =
// 'https://script.google.com/macros/s/AKfycbz12UnYLSmxvwGdeUH2EI7VQ8AnLMACE6IEy3bl3TcmhnyWa0Wmfxxr17swWWXCoXqd/exec';
// var response = await http.get(Uri.parse(url));
// var jsonData = convert.jsonDecode(response.body) as List;
// // print(jsonData);
// return jsonData.map((json) => Pic.fromJson(json)).toList();
// }
1 answers
solution1
0 ACCPTED 2022-05-29 07:02:48
if you getting the error, it means one of the extractRoom throwing this is empty, so what you can do it check if the extractRoom is not empty before displaying its content.
realAppCard(
text: 'מחיר',
quantity: extractRoom.isNotEmpty ? extractRoom[0] : '0.0',
),
this will do the work
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.
Related Question
"RangeError (index): Invalid value: Valid value range is empty: 2" with flutter carousel
ItemList: RangeError (index): Invalid value: Valid value range is empty: 0
RangeError (index): Invalid value: Not in range 0..7, inclusive: 8
Index 0 out of range [0...0]
Index 2 out of range JSON
Index out range SwiftUI
JSON index 2 out of range exception
JSONException Index out of range [0..1)
Index 1 out of range [0..1) image
Android Index 2 out of range JSON
Related Tags