Chip
sample.packages.flutter.lib.src.material.chip.222.
This sample shows how to use [onDeleted] to remove an entry when the delete button is tapped.
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
@override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const Center(
child: MyStatefulWidget(),
),
),
);
}
}
class Actor {
const Actor(this.name, this.initials);
final String name;
final String initials;
}
class CastList extends StatefulWidget {
const CastList({Key? key}) : super(key: key);
@override
State createState() => CastListState();
}
class CastListState extends State {
final List _cast = [
const Actor('Aaron Burr', 'AB'),
const Actor('Alexander Hamilton', 'AH'),
const Actor('Eliza Hamilton', 'EH'),
const Actor('James Madison', 'JM'),
];
Iterable get actorWidgets {
return _cast.map((Actor actor) {
return Padding(
padding: const EdgeInsets.all(4.0),
child: Chip(
avatar: CircleAvatar(child: Text(actor.initials)),
label: Text(actor.name),
onDeleted: () {
setState(() {
_cast.removeWhere((Actor entry) {
return entry.name == actor.name;
});
});
},
),
);
});
}
@override
Widget build(BuildContext context) {
return Wrap(
children: actorWidgets.toList(),
);
}
}
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
@override
State createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State {
@override
Widget build(BuildContext context) {
return const CastList();
}
}
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