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IEventDispatcher null in Model

Kyle's Avatar

Kyle

03 Jul, 2013 11:01 PM

I know this is a pretty common problem (based on the threads I've read thus far), so I'm hoping there is a really simple answer. I've got a model that has the IEventDispatcher injected into it as such:

[Inject]
public var eventDispatcher:IEventDispatcher;

The problem is that when I try to access eventDispatcher, it is null. I have a config file that is mapping my model:

injector.map(GameModel).asSingleton();

...and the config is added to my context:

_context = new Context()
.install(MVCSBundle)
.install(RelaxedEventMapExtension)
.configure(ModelConfig, ViewConfig, CommandConfig, ServiceConfig, EventConfig, StartupConfig)
.configure(new ContextView(this));

StartupConfig also contains a reference to IEventDispatcher, and is successfully using it (i.e. it is being injected correctly). I'm sure there is something ridiculously simple I'm missing here..?

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  1. Support Staff 30 Posted by Ondina D.F. on 11 Jul, 2013 12:13 PM

    Ondina D.F.'s Avatar

    just store the context instance in a property, BEFORE starting the method chaining:

    Yes, that’s already been discussed in the previous posts. [http://knowledge.robotlegs.org/discussions/robotlegs-2/3724-ieventd...]

    it doesn't have anything to do with the context view already being on the stage.

    Ok, then we don’t need the StageSyncExtension at all.
    We could do just this:

    public function MinimalistContext(view:DisplayObjectContainer)
{
     _context = new Context()

     .afterInitializing(afterInitializing)
                            
     .install(ContextViewExtension)
     .install(ViewManagerExtension)

     .configure(ContextViewListenerConfig)
     .configure(new ContextView(view))

    _context.initialize();
}

    Probably we should point this out somewhere in the documentation.

    Oh yes, we should!!!

  2. Support Staff 31 Posted by Shaun Smith on 11 Jul, 2013 12:31 PM

    Shaun Smith's Avatar

    The StageSyncExtension is indeed the culprit here. I've been considering making it wait a frame for ages, I'm just a little concerned with subtle side-effects

  3. Ondina D.F. closed this discussion on 30 Aug, 2013 07:55 AM.

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