Flutter best practices

[ctartamella]

What would you say the best usage of this in a Flutter widget is (Stateful or Stateless)? Are we hitting the the AppBootsrapperBuilder.instance.instance().create<IServiceType>() within the method body itself or is there a better solution?

One thing similar packages in .NET (and others I think) is constructor injection. Do you think that would be possible (if it isn't already)?

[aloisdeniel]

IMHO The simplest and recommended way to give access to your containers would be an InheritedWidget.

class ContainerProvider extends InheritedWidget {
  final Container container;

  ContainerProvider({
    Key key,
    Container container,
    Widget child,
  })  : container = container ?? AppBootstrapper.instance.development(),
        super(key: key, child: child);

  @override
  bool updateShouldNotify(InheritedWidget oldWidget) => true;

  static Container of(BuildContext context) => (context.inheritFromWidgetOfExactType(ContainerProvider) as ContainerProvider).container;
}

You can simply instantiate it at the root of you app tree and access it from wherever in the tree from context!

class MyApp extends StatelessWidget
  @override
  Widget build(BuildContext context) {
    return ContainerProvider(child: MaterialApp( ... ));
  }
}

From a widget instantiated in the tree :

@override
  Widget build(BuildContext context) {
    var container = ContainerProvider.of(context);
    return ...;
  }

I will add a full flutter sample in near future, it is a good idea! 👍

[ctartamella]

OK that looks good. It would be awesome if we could get constructor injection, but I thought about what this would look like and I really think we need variable length arguments to make it work. This is probably as good as it gets for now. Thanks!