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A mixture between dependency injection and state management, built with widgets for widgets.

3.1.0 #

  • Added Selector, similar to Consumer but can filter unneeded updates
  • improved the overall documentation
  • fixed a bug where ChangeNotifierProvider.value didn't update dependents when the ChangeNotifier instance changed.
  • Consumer can now be used inside MultiProvider
    MultiProvider(
      providers: [
        Provider(builder: (_) => Foo()),
        Consumer<Foo>(
          builder: (context, foo, child) =>
            Provider.value(value: foo.bar, child: child),
        )
      ],
    );
    

3.0.0 #

breaking (see the readme for migration steps): #

  • Provider now throws if used with a Listenable/Stream. This can be disabled by setting Provider.debugCheckInvalidValueType to null.
  • The default constructor of StreamProvider has now builds a Stream instead of StreamController. The previous behavior has been moved to StreamProvider.controller.
  • All XXProvider.value constructors now use value as parameter name.
  • Added FutureProvider, which takes a future and updates dependents when the future completes.
  • Providers can no longer be instantiated using const constructors.

non-breaking: #

  • Added ProxyProvider, ListenableProxyProvider, and ChangeNotifierProxyProvider. These providers allows building values that depends on other providers, without loosing reactivity or manually handling the state.
  • Added DelegateWidget and a few related classes to help building custom providers.
  • Exposed the internal generic InheritedWidget to help building custom providers.

2.0.1 #

  • fix a bug where ListenableProvider.value/ChangeNotifierProvider.value /StreamProvider.value/ValueListenableProvider.value subscribed/unsubscribed to their respective object too often
  • fix a bug where ListenableProvider.value/ChangeNotifierProvider.value may rebuild too often or skip some.

2.0.0 #

  • Consumer now takes an optional child argument for optimization purposes.
  • merged Provider and StatefulProvider
  • added a "builder" constructor to ValueListenableProvider
  • normalized providers constructors such that the default constructor is a "builder", and offer a value named constructor.

1.6.1 #

  • Provider.of<T> now crashes with a ProviderNotFoundException when no Provider<T> are found in the ancestors of the context used.

1.6.0 #

  • new: ChangeNotifierProvider, similar to scoped_model that exposes ChangeNotifer subclass and rebuilds dependents only when notifyListeners is called.
  • new: ValueListenableProvider, a provider that rebuilds whenever the value passed to a ValueNotifier change.

1.5.0 #

  • new: Add Consumer with up to 6 parameters.
  • new: MultiProvider, a provider that makes a tree of provider more readable
  • new: StreamProvider, a stream that exposes to its descendants the current value of a Stream.

1.4.0 #

  • Reintroduced StatefulProvider with a modified prototype. The second argument of valueBuilder and didChangeDependencies have been removed. And valueBuilder is now called only once for the whole life-cycle of StatefulProvider.

1.3.0 #

  • Added Consumer, useful when we need to both expose and consume a value simultaneously.

1.2.0 #

  • Added: HookProvider, a Provider that creates its value from a Hook.
  • Deprecated StatefulProvider. Either make a StatefulWidget or use HookProvider.
  • Integrated the widget inspector, so that Provider widget shows the current value.

1.1.1 #

  • add didChangeDependencies callback to allow updating the value based on an InheritedWidget
  • add updateShouldNotify method to both Provider and StatefulProvider

1.1.0 #

  • onDispose has been added to StatefulProvider
  • BuildContext is now passed to valueBuilder callback
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A mixture between dependency injection and state management, built with widgets for widgets.

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License

MIT (LICENSE)

Dependencies

flutter

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