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: [email protected] [mailto:[EMAIL PROTECTED]
> > On
> > Behalf Of dnk
> > Sent: Sunday, May 25, 2008 11:40 AM
> > To: [email protected]
> > 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: [email protected] [mailto:[EMAIL PROTECTED]
> > > On Behalf Of dnk
> > > Sent: Friday, May 23, 2008 4:48 AM
> > > To: [email protected]
> > > 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
> > >
> > >
> > >
> > >
> >
> > ------------------------------------
> >
> > --
> > Flexcoders Mailing List
> > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
> > Search Archives:
> > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups
> > Links
> >
> >
> >
>
>
> ------------------------------------
>
> --
> Flexcoders Mailing List
> FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
> Search Archives:
> http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups
> Links
>
>
>
>
--
"Therefore, send not to know For whom the bell tolls. It tolls for thee."
:: Josh 'G-Funk' McDonald
:: 0437 221 380 :: [EMAIL PROTECTED]
