Flutter RadioListTile – Example

Flutter RadioListTile Widget

Flutter RadioListTile widget displays a material design radio button with a label.

Sample Code

enum Fruit { apple, banana }

Fruit? _fruit = Fruit.apple;

RadioListTile<Fruit>(
  title: const Text('Apple'),
  value: Fruit.apple,
  groupValue: _fruit,
  onChanged: (Fruit? value) {
    setState(() {
      _fruit = value;
    });
  },
)

RadioListTile<Fruit>(
  title: const Text('Banana'),
  value: Fruit.banana,
  groupValue: _fruit,
  onChanged: (Fruit? value) {
    setState(() {
      _fruit = value;
    });
  },
)

Example

Flutter Application with two RadioListTile widgets.

Fruit Enum is used to select one of the Enum values using Radio buttons.

main.dart

import 'package:flutter/material.dart';

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

/// main application widget
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Application';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: const MyStatefulWidget(),
      ),
    );
  }
}

/// stateful widget that the main application instantiates
class MyStatefulWidget extends StatefulWidget {
  const MyStatefulWidget({Key? key}) : super(key: key);

  @override
  State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}

enum Fruit { apple, banana }

/// private State class that goes with MyStatefulWidget
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
  Fruit? _fruit = Fruit.apple;
  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        children: <Widget>[
          RadioListTile<Fruit>(
            title: const Text('Apple'),
            value: Fruit.apple,
            groupValue: _fruit,
            onChanged: (Fruit? value) {
              setState(() {
                _fruit = value;
              });
            },
          ),
          RadioListTile<Fruit>(
            title: const Text('Banana'),
            value: Fruit.banana,
            groupValue: _fruit,
            onChanged: (Fruit? value) {
              setState(() {
                _fruit = value;
              });
            },
          ),
        ],
      ),
    );
  }
}

Video