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

9 votes212 views1 answer
Dart ternary operator multiple
Dart
1 vote208 views1 answer
Flutter floting action button shadow remove
Dart
23 votes243 views4 answers
Flutter dateFormat
Dart
0 vote245 views1 answer
Flutter: How to point to localhost:8000 with the Dart http package in Flutter?
Dart
1 vote211 views1 answer
How to get value from user in dart
Dart
11 votes210 views2 answers
Flutter appbar remove debug
Dart
0 vote232 views1 answer
Iterable.every dart
Dart
0 vote201 views2 answers
Dart string variable stack
Dart
1 vote205 views2 answers
Dart remove from list
Dart
10 votes173 views2 answers
Flutter clickable container
Dart