main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Button Toggle Switch',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Button Toggle Switch'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  // toggles
  List<bool> toggleSelected = [false, false, false];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'Choose the extras...',
              style: TextStyle(
                  color: Colors.blueGrey,
                  fontSize: 20,
                  fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 10),
            const Text(
              'only one',
              style: TextStyle(
                  color: Colors.blue,
                  fontSize: 16,
                  fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 20),
            ToggleButtons(
              isSelected: toggleSelected,
              onPressed: (int index) {
                setState(() {
                  for (int buttonIndex = 0;
                      buttonIndex < toggleSelected.length;
                      buttonIndex++) {
                    if (buttonIndex == index) {
                      toggleSelected[buttonIndex] = true;
                    } else {
                      toggleSelected[buttonIndex] = false;
                    }
                  }
                });
              },
              color: Colors.pink,
              selectedColor: Colors.white,
              fillColor: Colors.pink,
              borderRadius: BorderRadius.circular(12),
              selectedBorderColor: Colors.pink[300],
              children: const <Widget>[
                Icon(Icons.free_breakfast),
                Icon(Icons.wifi),
                Icon(Icons.local_parking),
              ],
            ),
            const SizedBox(height: 20),
            ElevatedButton(
              onPressed: () {
                debugPrint('Element 0: ${toggleSelected[0]}');
                debugPrint('Element 1: ${toggleSelected[1]}');
                debugPrint('Element 2: ${toggleSelected[2]}');
              },
              style: ButtonStyle(
                  padding: MaterialStateProperty.all(
                    const EdgeInsets.symmetric(vertical: 20, horizontal: 60),
                  ),
                  foregroundColor:
                      MaterialStateProperty.all<Color>(Colors.white),
                  backgroundColor:
                      MaterialStateProperty.all<Color>(Colors.black45),
                  shape: MaterialStateProperty.all<RoundedRectangleBorder>(
                      RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(24),
                          side: const BorderSide(color: Colors.black38)))),
              child: const Text(
                "Accept",
                style: TextStyle(color: Colors.white),
              ),

            ),
          ],
        ),
      ),
    );
  }
}