multi_animated_builder 0.1.0

multi_animated_builder: ^0.1.0 copied to clipboard

example/main.dart

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

class Counter extends ChangeNotifier {
  int _count = 0;

  int get count => _count;

  void increment() {
    _count++;
    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(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const 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> {
  final counter1 = Counter();
  final counter2 = Counter();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
        child: MultiAnimatedBuilder(
          animations: [counter1, counter2],
          builder: (context) {
            return Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                const Text(
                  'You have pushed the buttons this many times:',
                ),
                Text(
                  '${counter1.count} + ${counter2.count}',
                  style: Theme.of(context).textTheme.headlineMedium,
                ),
              ],
            );
          },
        ),
      ),
      floatingActionButton: Row(
        children: [
          FloatingActionButton(
            onPressed: counter1.increment,
            tooltip: 'Increment 1',
            child: const Icon(Icons.add),
          ),
          FloatingActionButton(
            onPressed: counter2.increment,
            tooltip: 'Increment 2',
            child: const Icon(Icons.add),
          ),
        ],
      ),
    );
  }
}