shard 0.0.2

shard: ^0.0.2 copied to clipboard

example/lib/main.dart

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

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

/// Simple counter shard example
class CounterShard extends Shard<int> {
  CounterShard() : super(0);

  void increment() => emit(state + 1);
  void decrement() => emit(state - 1);
  void reset() => emit(0);
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Shard Counter Example',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: ShardProvider<CounterShard>(
        create: () => CounterShard(),
        child: const CounterScreen(),
      ),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Shard Counter Example'),
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ShardBuilder<CounterShard, int>(
              builder: (context, count) {
                return Text(
                  '$count',
                  style: Theme.of(context).textTheme.displayLarge,
                );
              },
            ),
            const SizedBox(height: 24),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                ElevatedButton(
                  onPressed: () => context.read<CounterShard>().decrement(),
                  child: const Icon(Icons.remove),
                ),
                const SizedBox(width: 16),
                ElevatedButton(
                  onPressed: () => context.read<CounterShard>().reset(),
                  child: const Text('Reset'),
                ),
                const SizedBox(width: 16),
                ElevatedButton(
                  onPressed: () => context.read<CounterShard>().increment(),
                  child: const Icon(Icons.add),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}