notifier_builder 0.1.0-beta

A Flutter Builder for Notifiers

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:notifier_builder/notifier_builder.dart';

class CounterNotifier extends ChangeNotifier {
  int _counter = 0;

  int get counter => _counter;

  void increment() {
    _counter++;
    notifyListeners();
  }
}

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  Widget build(BuildContext context) => NotifierBuilder(
        notifier: () => CounterNotifier(),
        builder: (c, w, n) => Scaffold(
          appBar: AppBar(
            title: Text(title),
          ),
          body: Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                const Text(
                  'You have pushed the button this many times:',
                ),
                Text(
                  '${n.counter}',
                  style: Theme.of(context).textTheme.headlineMedium,
                ),
              ],
            ),
          ),
          floatingActionButton: FloatingActionButton(
            onPressed: n.increment,
            tooltip: 'Increment',
            child: const Icon(Icons.add),
          ),
        ),
      );
}