riverpod 1.0.0-dev.1 changelog

1.0.0-dev.1 #

Add missing exports (see #532)

1.0.0-dev.0 #

ref.watch now support myProvider.select((value) => ...). This allows filtering rebuilds:

final userProvider = StateNotifierProvider<UserController, User>(...);

final anotherProvider = Provider((ref) {
  // With this syntax, the Consumer will not rebuild if `userProvider`
  // emits a new User but its "name" didn't change.
  bool userName = ref.watch(userProvider.select((user) => user.name));
});

Breaking: Family.overrideWithProvider now must create a provider:

final family = Provider.family<State, Arg>(...);

family.overrideWithProvider(
  (Arg arg) => Provider<State>((ref) => ...)
);

Breaking: ProviderObserver.didUpdateProvider now receives both the previous and new value.
Breaking: ProviderObserver.mayHaveChanged is removed.

Added ref.listen, used to listen to another provider without recreating the provider state:

final counter = StateNotifierProvider<Counter, int>(...);

final anotherProvider = Provider<T>((ref) {
  ref.listen<int>(counter, (count) {
    print('counter change: $count');
  });
});

ProviderReference is deprecated in favor of ProviderRefBase.
All providers now receive a custom subclass of ProviderRefBase as parameter:
```
Provider<T>((ProviderRef<T> ref) {...});
FutureProvider<T>((FutureProviderRef<T> ref) {...});
StateProvider<T>((StateProviderRef<T> ref) {...});
```
That allows providers to implement features that is not shared with other providers.
- Provider, FutureProvider and StreamProvider's ref now have a state property, which represents the currently exposed value. Modifying it will notify the listeners:
```
Provider<int>((ref) {
  ref.listen(onIncrementProvider, (_) {
    ref.state++;
  });

  return 0;
});
```
- StateProvider's ref now has a controller property, which allows the provider to access the StateController exposed.
Breaking: ProviderReference.mounted is removed. You can implement something similar using onDispose:
```
Provider<T>((ref) {
  var mounted = true;
  ref.onDispose(() => mounted = false);
});
```
Breaking: ProviderContainer.debugProviderValues and ProviderContainer.debugProviderElements are removed. You can now instead use ProviderContainer.getAllProviderElements.
StreamProvider.last, StreamProvider.stream and FutureProvider.future now expose a future/stream that is independent from how many times the associated provider "rebuilt":
- if a StreamProvider rebuild before its stream emitted any value, StreamProvider.last will resolve with the first value of the new stream instead.
- if a FutureProvider rebuild before its future completes, FutureProvider.future will resolve with the result of the new future instead.
You can now override any provider with any other provider, as long as the value that they expose matches. For example, it is possible to override a StreamProvider<Model> with a Provider<AsyncValue<Model>>.
ref.onDispose now calls the dispose function as soon as one of the provider's dependency is known to have changed
Providers can now call ref.refresh to refresh a provider, instead of having to do ref.container.refresh.
Providers no longer wait until their next read to recompute their state if one of their dependency changed and they have listeners.
Added ProviderContainer.pump, an utility to easily "await" until providers notify their listeners or are disposed.
fixed an issue when using both family and autoDispose that could lead to an inconsistent state

0.14.0+3 #

Removed an assert that could cause issues when an application is partially migrated to null safety.

0.14.0+1 #

Re-added StateProvider.overrideWithValue/StateProvider.overrideWithProvider that were unvoluntarily removed.

0.14.0 #

BREAKING CHANGE The Listener/LocatorMixin typedefs are removed as the former could cause a name conflict with the widget named Listener and the latter is not supported when using Riverpod.

BREAKING CHANGE The syntax for using StateNotifierProvider was updated. Before:

class MyStateNotifier extends StateNotifier<MyModel> {...}

final provider = StateNotifierProvider<MyStateNotifier>((ref) => MyStateNotifier());

...
Widget build(context, watch) {
  MyStateNotifier notifier = watch(provider);
  MyModel model = watch(provider.state);
}

After:

class MyStateNotifier extends StateNotifier<MyModel> {...}

final provider = StateNotifierProvider<MyStateNotifier, MyModel>>((ref) => MyStateNotifier());

...
Widget build(context, watch) {
  MyStateNotifier notifier = watch(provider.notifier);
  MyModel model = watch(provider);
}

See also https://github.com/rrousselGit/river_pod/issues/341 for more information.

BREAKING CHANGE It is no-longer possible to override StreamProvider.stream/last and FutureProvider.future.
feat: Calling ProviderContainer.dispose multiple time no-longer throws. This simplifies the tear-off logic of tests.
feat: Added ChangeNotifierProvider.notifier and StateProvider.notifier They allow obtaining the notifier associated to the provider, without causing widgets/providers to rebuild when the state updates.
fix: overriding a StateNotifierProvider/ChangeNotifierProvider with overrideWithValue now correctly listens to the notifier.

0.13.1 #

Fixed a bug where overriding a FutureProvider with an error value could cause tests to fail (see https://github.com/rrousselGit/river_pod/issues/355)

0.13.0 #

stable null-safety release
ProviderObserver can now have a const constructor
Added the mechanism for state-inspection using the Flutter devtool
loosened the version constraints of freezed_annotation
deprecated import 'riverpod/all.dart'. Now everything is available with riverpod/riverpod.dart.
Fixed a but where listening to StreamProvider.last could result in a StateError (#217)

0.13.0-nullsafety.3 #

deprecated import 'riverpod/all.dart'. Now everything is available with riverpod/riverpod.dart.

0.13.0-nullsafety.1 #

Fixed a but where listening to StreamProvider.last could result in a StateError (#217)

0.13.0-nullsafety.0 #

Migrated to null-safety

0.12.2 #

Exported AutoDisposeProviderRefBase

0.12.1 #

Fixed an remaining memory leak related to StreamProvider (see also https://github.com/rrousselGit/river_pod/issues/193)

0.12.0 #

Breaking FutureProvider and StreamProvider no-longer supports null as a valid value.
Fixed a memory leak with StreamProvider (see also https://github.com/rrousselGit/river_pod/issues/193)

0.11.2 #

Fixed a bug where providers (usually ScopedProviders) did not dispose correctly (see also https://github.com/rrousselGit/river_pod/issues/154).

0.11.0 #

package:riverpod/riverpod.dart now exports StateNotifier
Marked the providers with @sealed so that the IDE warns against implementing/subclassing providers.
Fix mistakes in AsyncValue.guard's documentation (thanks @mono0926)
Loosened the version constraints of freezed_annotation to support 0.12.0

0.10.0 #

Fixed a bug where the state of a provider may be disposed when it shouldn't be disposed.
Added a way to import the implementation class of providers with modifiers, such as AutoDisposeProvider.

This is useful if you want to use Riverpod with the lint always_specify_types:
```
import 'package:riverpod/all.dart';

final AutoDisposeStateProvider<int> counter = StateProvider.autoDispose<int>((ProviderRefBase ref) {
  return 0;
});
```
If you do not use this lint, prefer using the default import instead, to not pollute your auto-complete.

0.8.0 #

Renamed ProviderContainer.debugProviderStates to ProviderContainer.debugProviderElements
Fixed a bug where updating ProviderScope.overrides may cause an exception for no reason (see https://github.com/rrousselGit/river_pod/issues/107)

0.7.0 #

ref.watch on non ".autoDispose" providers can no-longer read ".autoDispose" providers.

For more info, see http://riverpod.dev/docs/concepts/modifiers/auto_dispose#the-argument-type-autodisposeprovider-cant-be-assigned-to-the-parameter-type-alwaysaliveproviderbase

ScopedProvider now accepts null as a function:

final example = ScopedProvider<int>(null);

Which is equivalent to:

final example = ScopedProvider<int>((watch) => throw UnimplementedError(''));

Fixed a bug where context.refresh may not work properly if the widget tree contains multiple ProviderScope.

0.6.1 #

Fixed a bug where when disposing ProviderContainer, providers may be disposed in an incorrect order.
Improved the performances of reading providers by 25%

0.6.0 #

Merged Computed and Provider. Now, all providers have the ability to rebuild their state when one of the object they listen changed.

To migrate, change:

final provider = Provider(...);
final example = Computed((watch) {
  final value = watch(provider);
  return value;
});

into:

final provider = Provider(...);
final example = Provider((ref) {
  final value = ref.watch(provider);
  return value;
});

Computed (now Provider) no-longer deeply compare collections to avoid rebuilds. Comparing the content of lists is quite expensive and actually rarely useful. Now, a simple == comparison is used.
Renamed ProviderStateOwner to ProviderContainer
Renamed ProviderStateOwnerObserver to ProviderObserver
It is no-longer possible to override a provider anywhere in the widget tree. Providers can only be overriden in the top-most ProviderContainer.
Providers can now read values which may change over time using ref.read and ref.watch. When using ref.watch, if the value obtained changes, this will cause the provider to re-create its state.
It is no-longer possible to add ProviderObserver anywhere in the widget tree. They can be added only on the top-most ProviderContainer.
Added ProviderContainer.refresh(provider). This method allows forcing the refresh of a provider, which can be useful for things like "retry on error" or "pull to refresh".

ref.read(StreamProvider<T>) no-longer returns a Stream<T> but an AsyncValue<T> Before:

final streamProvider = StreamProvider<T>(...);
final example = Provider((ref) {
  Stream<T> stream = ref.read(streamProvider);
});

After:

final streamProvider = StreamProvider<T>(...);
final example = Provider((ref) {
  Stream<T> stream = ref.watch(streamProvider.steam);
});

ref.read(FutureProvider<T>) no-longer returns a Future<T> but an AsyncValue<T>

Before:

final futureProvider = FutureProvider<T>(...);
final example = Provider((ref) {
  Future<T> future = ref.read(futureProvider);
});

After:

final futureProvider = FutureProvider<T>(...);
final example = Provider((ref) {
  Future<T> future = ref.watch(futureProvider.future);
});

Removed ref.dependOn. You can now use ref.read/ref.watch to acheive the same effect.

Before:

final streamProvider = StreamProvider<T>(...);
final example = Provider((ref) {
  Future<T> last = ref.dependOn(streamProvider).last;
});

After:

final streamProvider = StreamProvider<T>(...);
final example = Provider((ref) {
  Future<T> last = ref.watch(streamProvider.last);
});

Provider.readOwner(ProviderStateOwner) is changed into ProviderContainer.read(Provider)

Provider.watchOwner(ProviderStateOwner, (value) {}) is changed into:

ProviderContainer container;
final provider = Provider((ref) => 0);

final subscription = container.listen(
  provider,
  mayHaveChanged: (sub) {},
  didChange: (sub) {}.
);

subscription.close();

MyProvider.family.autoDispose now correctly free both the arguments and the associated providers from memory when the provider is no-longer listened.

Added ScopedProvider, a new kind of provider that can be overriden anywhere in the widget tree. Normal providers cannot read a ScopedProvider.

0.5.1 #

Fixed the documentation of StateNotifierProvider incorrectly showing the documentation of StreamProvider.
Improve the documentation of StateProvider.

0.5.0 #

Changed ComputedFamily into Computed.family
Added [AsyncValue.guard](https://pub.dev/documentation/riverpod/latest/riverpod/AsyncValue/guard.html to simplify transforming a Future into an AsyncValue.
Improved the documentation of the different providers

0.4.0 #

Changed the syntax of "AutoDispose*" and "*Family" to use a syntax similar to named constructors instead.

Before:

final myProvider = AutoDisposeStateNotifierProviderFamily<MyStateNotifier, int>((ref, id) {
  return MyStateNotifier(id: id);
});

After:

final myProvider = StateNotifierProvider.autoDispose.family<MyStateNotifier, int>((ref, id) {
  return MyStateNotifier(id: id);
});

The behavior is the same. Only the syntax changed.

0.3.0 #

Added AsyncValue.whenData, syntax sugar for AsyncValue.when to handle only the data case and do nothing for the error/loading cases.
Fixed a bug that caused [Computed] to crash if it stopped being listened then was listened again.

0.2.1 #

Computed now correctly unsubscribe to a provider when their function stops using a provider.

0.2.0 #

ref.read is renamed as ref.dependOn
Deprecated ref.dependOn(streamProvider).stream and ref.dependOn(futureProvider).future in favor of a universal ref.dependOn(provider).value.
added ref.read(provider), syntax sugar for ref.dependOn(provider).value.

0.1.0 #

Initial release

riverpod 1.0.0-dev.1
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