bloc_provider_package 0.0.1+1

A package for managing state using BlocProvider and MultiBlocProvider.

example/lib/main.dart

import 'package:bloc_provider_package/bloc_provider_package.dart';
import 'package:example/counter_bloc.dart';
import 'package:example/counter_bloc2.dart';
import 'package:flutter/material.dart';

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

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
          useMaterial3: true,
        ),
        home: MultiBlocProvider(
          providers: [
            BlocProvider(
              create: (context) => CounterBloc(),
            ),
            BlocProvider(
              create: (context) => CounterBloc2(),
            ),
          ],
          child: MyHomePage(title: 'Flutter Demo Home Page'),
        ));
  }
}

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

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

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: <Widget>[
              // Title text
              const Text(
                'You have pushed the button this many times:',
                style: TextStyle(
                  fontSize: 24,
                  fontWeight: FontWeight.bold,
                ),
              ),
              const SizedBox(height: 20),

              // First Counter StreamBuilder with Card style
              Card(
                elevation: 5,
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12),
                ),
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: StreamBuilder(
                    stream: context.read<CounterBloc>().counterStream,
                    builder: (context, snapshot) {
                      return Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          const Text(
                            'Counter 1',
                          ),
                          Text(
                            '${snapshot.data ?? 0}',
                          ),
                        ],
                      );
                    },
                  ),
                ),
              ),
              const SizedBox(height: 20),
              ElevatedButton(
                onPressed: context.read<CounterBloc>().incrementCounter,
                style: ElevatedButton.styleFrom(
                  padding:
                      const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(8),
                  ),
                ),
                child: const Text('Increment Counter 1',
                    style: TextStyle(fontSize: 18)),
              ),
              const SizedBox(height: 20),
              // Second Counter StreamBuilder with Card style
              Card(
                elevation: 5,
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12),
                ),
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: StreamBuilder(
                    stream: context.read<CounterBloc2>().counterStream,
                    builder: (context, snapshot) {
                      return Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          const Text(
                            'Counter 2',
                          ),
                          Text(
                            '${snapshot.data ?? 0}',
                          ),
                        ],
                      );
                    },
                  ),
                ),
              ),
              const SizedBox(height: 20),

              // Decrement Button
              ElevatedButton(
                onPressed: context.read<CounterBloc2>().decrementCounter,
                style: ElevatedButton.styleFrom(
                  padding:
                      const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(8),
                  ),
                ),
                child: const Text('Decrement Counter 2',
                    style: TextStyle(fontSize: 18)),
              ),
            ],
          ),
        ),
      ),
    );
  }
}