How to update listview in flutter

// Assuming you've extended the StatefulWidget, you must call setState 
// everytime you change the state. Ex:

setState(() { propList.add('text'); });

// Quick Example

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) => MaterialApp(home: MyList());
}

class MyList extends StatefulWidget {
  @override
  _MyListState createState() => _MyListState();
}

class _MyListState extends State<MyList> {
  List<String> propList = [];
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('My List'),
      ),
      body: ListView.builder(
        itemCount: propList.length,
        scrollDirection: Axis.horizontal,
        shrinkWrap: true,
        itemBuilder: (context,index)=> Text(propList[index]),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () => setState(() => propList.add('text')),
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

Source: stackoverflow.com

Similar codes

12 votes318 views2 answers
Height appbar flutter
Dart
0 vote296 views1 answer
Dart floor
Dart
0 vote342 views1 answer
Dart The instance member 'user' can't be accessed in an initializer.Try replacing the reference to the instance member with a different expression
Dart
0 vote318 views1 answer
Flutter stuck at syncing files to device chrome
Dart
1 vote287 views1 answer
Text field make screen goes white flutter
Dart
1 vote308 views1 answer
Convert a list to string in flutter
Dart
11 votes312 views2 answers
Flutter appbar remove debug
Dart
0 vote298 views1 answer
Upload zip file to ec2
Dart
-2 votes289 views1 answer
How to get theme color inside the widget in Flutter
Dart
0 vote344 views1 answer
Dart convert int string leading zeros
Dart