And don't forget to add:
import mx.core.Application;
Up the top :)
On Mon, May 26, 2008 at 2:11 PM, Josh McDonald <[EMAIL PROTECTED]>
wrote:
Ok mate, here's the problem:
public function FlexbController()
{
//turn the key, start it up....
addEventListener( FlexEvent.CREATION_COMPLETE, onInit );
trace("Controller");
}
What you need, is this:
public function FlexbController()
{
//turn the key, start it up....
Application
.application.addEventListener( FlexEvent.CREATION_COMPLETE, onInit );
trace("Controller");
}
The reason for this, is the way CREATION_COMPLETE is dispatched -
which is from the bottom of your display tree upward. It has to be
this way, because it's dispatched only after all the children of a
component have already had CREATION_COMPLETE dispatched. So first it
is dispatched on all instantiated UIComponents that don't have any
children. Then (probably on the next frame, but ask Alex) it's
dispatched on their container components, and so on and so forth
until finally (as far as we care) it's dispatched on your root
Application. It might be then dispatched on a few containers up to
the systemManager, but again Alex would know better than me.
Now what happens in your case, CREATION_COMPLETE is dispatched on
your FlexbController, and then you're dispatching the GET_NEWS_EVENT
immediately. But, the current instance of FlexbController is not yet
part of the displayTree, because it hasn't been completely added to
the Application's children yet. So the event has nowhere to bubble
to - and never reaches the Application, or the SystemManager.
But, if you defer onInit() until CREATION_COMPLETE is dispatched on
the Application itself, you know that the display tree is complete
(in its initial layout at least), and you can safely dispatch the
event and have it bubble all the way to the top of the tree at
SystemManager.
-J
On Mon, May 26, 2008 at 1:35 PM, dnk <[EMAIL PROTECTED]> wrote:
Yeah that is what I thought.
my onInit is called in my constructor with:
addEventListener( FlexEvent.CREATION_COMPLETE, onInit );
The requests for data are usually called after other adding of the
events, but within the same function (onInit).
I think I will just ad my addEventListener calls direct in my
constructor and see what happens there.
dnk
On 25-May-08, at 2:08 PM, Alex Harui wrote:
> Timers are normally not necessary. You need to have a clear
> understanding of the application lifecycle and its events. I don't
> know
> when your onInit is getting called, but if it is after a request for
> data has been sent, that's too late, you need to do it before the
> request.
>
> -----Original Message-----
> From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
> On
> Behalf Of dnk
> Sent: Sunday, May 25, 2008 11:40 AM
> To: flexcoders@yahoogroups.com
> Subject: Re: [flexcoders] custom event not added - almost solved.
>
> Ok, I might be onto something here.... I added trace statements in
all
> handlers and contructors, etc....
>
> And the order my traces come back are:
>
> Controller
> getNewsData
> onInit
>
> The order my traces SHOULD come back are:
>
> Controller
> onInit
> getNewsData
>
> Since my event listeners are setup in my onInit, and if they are
being
> added after my initial dispatchEvent is sent... well obviously they
> will not be called.....
>
> So as a test I changed my onInt from:
>
> private function onInit( event:Event ):void
> {
> //setup event listeners
> /*systemManager is where event listener hangs
> out defines the
> relationship between event and handler*/
>
> systemManager.addEventListener(
> GetNewsEvent.GET_NEWS_EVENT,
> handler_GetNewsEvent );
> systemManager.addEventListener(
> AddNewsEvent.ADD_NEWS_EVENT,
> handler_AddNewsEvent );
>
>
systemManager.addEventListener( NewsDataLoadedEvent.NEWS_LOADED_EVENT,
> handler_NewsLoadedEvent );
> getNewsData();
>
> trace("onInit");
>
> }
>
> To:
>
> private function onInit( event:Event ):void
> {
> //setup event listeners
> /*systemManager is where event listener hangs
> out defines the
> relationship between event and handler*/
>
> systemManager.addEventListener(
> GetNewsEvent.GET_NEWS_EVENT,
> handler_GetNewsEvent );
> systemManager.addEventListener(
> AddNewsEvent.ADD_NEWS_EVENT,
> handler_AddNewsEvent );
>
>
systemManager.addEventListener( NewsDataLoadedEvent.NEWS_LOADED_EVENT,
> handler_NewsLoadedEvent );
> //getNewsData();
> //dispatchEvent(new
> GetNewsEvent(GetNewsEvent.GET_NEWS_EVENT));
>
> // Set a timer since the below function does not
> seem to get fired.
> var myTimer:Timer = new Timer(1, 1);
> myTimer.addEventListener("timer", getNewsData);
> myTimer.start();
>
> trace("onInit");
>
> }
>
> So I essentially setup a timer object to fire once like a second
> later, and it works.
>
> So now this does in fact work as expected, but the method does not
> seem "proper" to me.
>
> How would others get around this? Just do it the way I did? Or is
> there a more "proper" and "elegant" solution for this?
>
> DNK
>
> On 24-May-08, at 9:09 PM, Alex Harui wrote:
>
> >
> > Who's dispatching and how?
> >
> >
> >
> > When does the control get instantiated? Could it be after
> > creationComplete?
> >
> >
> >
> > If the controller is not a UIComponent, it will not get a
> > creationComplete.
> >
> >
> >
> > From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com
]
> > On Behalf Of dnk
> > Sent: Friday, May 23, 2008 4:48 AM
> > To: flexcoders@yahoogroups.com
> > Subject: [flexcoders] custom event not added
> >
> >
> >
> > Hi there,
> >
> > I have a controller that is adding my custom event listeners, but
> for
> > some reason my event handler was not being fired.
> >
> > My original code was (snippet):
> >
> > (in controler)
> >
> > //constructor
> > public function FlexbController()
> > {
> > //turn the key, start it up....
> > addEventListener( FlexEvent.CREATION_COMPLETE, onInit );
> > }
> >
> > private function onInit( event:Event ):void
> > {
> > //setup event listeners
> > /*systemManager is where event listener hangs out defines the
> > relationship between event and handler*/
> >
> > systemManager.addEventListener( GetNewsEvent.GET_NEWS_EVENT,
> > handler_GetNewsEvent );
> > systemManager.addEventListener( AddNewsEvent.ADD_NEWS_EVENT,
> > handler_AddNewsEvent );
> >
> >
>
systemManager.addEventListener( NewsDataLoadedEvent.NEWS_LOADED_EVENT,
> > handler_NewsLoadedEvent );
> > getNewsData();
> >
> > }
> >
> > And I had trace statements in all of my handlers... this is how i
> > noticed things were not working as they should.
> >
> > SO I added a simple check like (in my FlexbController
constructor):
> >
> > if (systemManager.addEventListener( GetNewsEvent.GET_NEWS_EVENT,
> > handler_GetNewsEvent ))
> > {
> > trace("true");
> > } else {
> > trace("false");
> > }
> >
> > And I obviously am getting "false".
> >
> > Ideas?
> >
> > dnk
> >
> >
> >
> >
>
> ------------------------------------
>
> --
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>
------------------------------------
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--
"Therefore, send not to know For whom the bell tolls. It tolls for
thee."
:: Josh 'G-Funk' McDonald
:: 0437 221 380 :: [EMAIL PROTECTED]
--
"Therefore, send not to know For whom the bell tolls. It tolls for
thee."
:: Josh 'G-Funk' McDonald
:: 0437 221 380 :: [EMAIL PROTECTED]
