Riverpod_flutter_tuts/lib/widgets/notifier/counter_widget.dart

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")),
    ]
    );
  }
}