import 'package:flutter/material.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; import 'counter.dart'; class CounterWidget extends ConsumerWidget { const CounterWidget({super.key}); @override Widget build(BuildContext context, WidgetRef ref) { // TODO: implement build var counter = ref.watch(counterNotifierProvider); return Column( children: [ Center( child: switch (counter) { AsyncData(:final value ) => Text( 'data: $value' ), AsyncError() => const Text('Oops, something unexpected happened'), _ => const CircularProgressIndicator(), }), ElevatedButton(onPressed:() { ref.read(counterNotifierProvider.notifier).plus(); }, child: const Text("plus")), ElevatedButton(onPressed: () { ref.read(counterNotifierProvider.notifier).minus(); }, child: const Text("minus")), ] ); } }