riverpod_state 0.0.1

Add idle state to async provider, support code generation

Flutter Riverpod extension adds an extra state for async value (Idle)

Features

• ✅ new state AsyncIdle
• ✅ support code generation

Getting started

riverpod_state: ^0.0.1

Usage

mixin your notifier with AutoDisposeAsyncNotifierMixin and provide your call in buildAsync method

provider:

@riverpod
class AddProduct extends _$AddProduct with AutoDisposeAsyncNotifierMixin {
  @override
  Future<AsyncDataValue<Product>> build() async => const AsyncDataValue.idle();

  Future<void> addProduct(int product) => updateState(() async { ... });
}

ui:

class AddProduct extends ConsumerWidget {
  const AddProduct({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final addProduct = ref.watch(addToCartProvider);

    return Scaffold(
      body: Column(
        children: [
          if (addProduct.hasIdleValue) const Text("Idle"),
          
          TextButton(
            onPressed: () async {
              await ref.read(addToCartProvider.notifier).addToCart(1);

              ref.read(addToCartProvider).whenDataOrError(data: (value) {
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text("Added to cart"),
                  ),
                );
              }, error: (error, stackTrace) {
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text("Error"),
                  ),
                );
              });
            },
            child: const Text("Add to cart"),
          ),
        ],
      ),
    );
  }
}

Additional information

• updateState is a helper method to update the state of the notifier with data