bolter_flutter 6.6.1

based on bolter library extensions for manage widgets and state

example/lib/main.dart

import 'package:bolter_flutter/bolter_flutter.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class MyPresenter extends Presenter<MyPresenter> {
  var _value = 0;

  void increment() {
    runAndUpdate(action: () {
      _value++;
    });
  }

  ValueStream<int> get valueStream => stream(() => _value);
}

void main() async {
  runApp(
    PresenterProvider(
      presenter: MyPresenter(),
      child: Builder(
        builder: (ctx) {
          return MaterialApp(
            home: Scaffold(
              body: Center(
                child: Column(
                  children: [
                    ValueStreamBuilder(
                      stream: ctx.presenter<MyPresenter>().valueStream,
                      builder: (BuildContext context, int value) {
                        return Text(value.toString());
                      },
                    ),
                    Padding(
                      padding: EdgeInsets.only(top: 16),
                      child: ElevatedButton(
                        child: Text("Increment"),
                        onPressed: () {
                          ctx.presenter<MyPresenter>().increment();
                        },
                      ),
                    )
                  ],
                ),
              ),
            ),
          );
        },
      ),
    ),
  );
}