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:[EMAIL PROTECTED]
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
--
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
* To visit your group on the web, go to:
http://groups.yahoo.com/group/flexcoders/
* Your email settings:
Individual Email | Traditional
* To change settings online go to:
http://groups.yahoo.com/group/flexcoders/join
(Yahoo! ID required)
* To change settings via email:
mailto:[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED]
* To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
* Your use of Yahoo! Groups is subject to:
RE: [flexcoders] custom event not added - almost solved.
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:[EMAIL PROTECTED]
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
--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Search Archives:
http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups
Re: [flexcoders] custom event not added - almost solved.
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:[EMAIL PROTECTED]
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
--
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
Re: [flexcoders] custom event not added - almost solved.
In this code:
private function onInit( event:Event ):void
{
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);
}
You're calling getNewsData before you do the trace from your init() method,
so you're getting the order you want but it looks otherwise. Whenever I've
using this sort of trace statement to debug a process execution, I make it
the first line of the method, and I suggest it's a good habit to have :)
When you call addEventListener, it has an immediate effect. But when you
call dispatchEvent, it sits in a queue until all other processing for this
frame is completed. Alex can tell you whether it's run in the last part of
this frame, or the first part of the next, but it's neither here nor there.
If you're adding a handler, and then calling the code that dispatches that
event, you should still be receiving the event in your handler, leaving me
to believe that something else is the cause of your woes.
How big is your project? If it's a reasonable size (and doesn't contain any
business secrets or anything), zip it up and upload it somewhere, and I'll
download the whole thing and have a look- I'm sure I'll be able to figure
out what you're doing wrong.
-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:[EMAIL PROTECTED]
On Behalf Of dnk
Sent
Re: [flexcoders] custom event not added - almost solved.
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
Re: [flexcoders] custom event not added - almost solved.
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
Re: [flexcoders] custom event not added - almost solved.
Dude, you rule!
Thanks s much!
Dnk
On 25-May-08, at 9:12 PM, Josh McDonald wrote:
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
Re: [flexcoders] custom event not added - almost solved.
No probs mate, it was pissing me off not know what the problem was, too :)
-J
On Mon, May 26, 2008 at 2:22 PM, dnk [EMAIL PROTECTED] wrote:
Dude, you rule!
Thanks s much!
Dnk
On 25-May-08, at 9:12 PM, Josh McDonald wrote:
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
Re: [flexcoders] custom event not added - almost solved.
Yeah this one was a bit of a mind [EMAIL PROTECTED]@!#. Much appreciated.
DNK
On 25-May-08, at 9:26 PM, Josh McDonald wrote:
No probs mate, it was pissing me off not know what the problem was,
too :)
-J
On Mon, May 26, 2008 at 2:22 PM, dnk [EMAIL PROTECTED] wrote:
Dude, you rule!
Thanks s much!
Dnk
On 25-May-08, at 9:12 PM, Josh McDonald wrote:
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
