"flutter map key/value" Code Answer's
You're definitely familiar with the best coding language Dart that developers use to develop their projects and they get all their queries like "flutter map key/value" answered properly. Developers are finding an appropriate answer about flutter map key/value related to the Dart coding language. By visiting this online portal developers get answers concerning Dart codes question like flutter map key/value. Enter your desired code related query in the search bar and get every piece of information about Dart code related question on flutter map key/value.
flutter get key from map
String key = values.keys.elementAt(index);
Source: stackoverflow.com
flutter create new map
Map<String, int> map1 = {'zero': 0, 'one': 1, 'two': 2};
Map map2 = {'zero': 0, 'I': 'one', 10: 'X'};
var map3 = {'zero': 0, 'I': 'one', 10: 'X'};
get value from map with key flutter
String value = myMap["mykey"];
flutter map key/value
void main() {
final testMap = {"a": 1, "b": 2, "c": 3, "d": 4, "e": 5};
for (final mapEntry in testMap.entries) {
final key = mapEntry.key;
final value = mapEntry.value;
print('Key: $key, Value: $value'); // Key: a, Value: 1 ...
}
}
flutter List example
//flutter List<Map<String, Object>> example
// this is a simple example to show how you can use a List
// with a number of widgets, ideally you should split your classes into
// separate files in order to trim down you Widget Tree.
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget{
@override
Widget build(BuildContext context){
return MaterialApp(
title: 'Hello Phrases',
home: _MyHomePage(),
);
}
}
class _MyHomePage extends StatefulWidget{
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<_MyHomePage> {
int phraseCount = 0;
final List<Map<String, Object>> myPhraseList = [
{'phrase': 'Phrase 1 some interesting phrase'},
{'phrase': 'Phrase 2 and yet another interesting phrase'}
];
void nextPhrase(){
setState((){
phraseCount += 1;
});
}
void resetPhrase(){
setState((){
phraseCount = 0;
});
}
@override
Widget build(BuildContext context){
return Scaffold(
appBar: AppBar(
title: Text('The Quote App'),
),
body: Container(
padding: EdgeInsets.all(20.0),
child: phraseCount < myPhraseList.length ? PhraseLogic(nextPhrase: nextPhrase, myPhraseList: myPhraseList, phraseCount: phraseCount) : ResetPhrase(resetPhrase: resetPhrase),
),
);
}
}
class PhraseLogic extends StatelessWidget {
final List<Map<String, Object>> myPhraseList;
final int phraseCount;
final Function nextPhrase;
PhraseLogic({this.nextPhrase, this.phraseCount, this.myPhraseList});
@override
Widget build(BuildContext context) {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text(myPhraseList[phraseCount]['phrase']),
SizedBox(height: 20.0),
RaisedButton(
child: Text('Next Phrase'),
onPressed: nextPhrase,
),
],
);
}
}
class ResetPhrase extends StatelessWidget {
final Function resetPhrase;
ResetPhrase({this.resetPhrase});
@override
Widget build(BuildContext context) {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text('All done!!!'),
SizedBox(height: 20.0),
RaisedButton(
child: Text('Reset Phrase'),
onPressed: resetPhrase,
),
],
);
}
}
All those coders who are working on the Dart based application and are stuck on flutter map key/value can get a collection of related answers to their query. Programmers need to enter their query on flutter map key/value related to Dart code and they'll get their ambiguities clear immediately. On our webpage, there are tutorials about flutter map key/value for the programmers working on Dart code while coding their module. Coders are also allowed to rectify already present answers of flutter map key/value while working on the Dart language code. Developers can add up suggestions if they deem fit any other answer relating to "flutter map key/value". Visit this developer's friendly online web community, CodeProZone, and get your queries like flutter map key/value resolved professionally and stay updated to the latest Dart updates.