[flexcoders] Re: Very odd null object RTE on FocusManager
Hi Alex,
Thanks for the help.
The problem is intermittent, perhaps happening one in three times if I have
more than three sub applications being loaded in.
I found the bug was related to an MXML component with two states, which is
being repeated. Only once is the alternate state used (if it's the first item).
I have therefore removed the state from the repeater, and put it before the
repeater. This has stopped the problem, but obviously not resolved the RTE from
potentially happening again somewhere else.
It's interesting what you say about removing the loader. In order to preload
the sub applications, I add them to a hidden container on the stage momentarily
to start them loading (If there is a way to do this in AS only please let me
know). The reference to the sub app swf is still retained for when the user
chooses to see it, and it is then attached to the stage again. The RTE happens
when there loading in, so I assume this supports that theory.
This is a section of the MXML component that preloads the swf
...
private function _preLoadSwf(e:PropertyChangeEvent):void
{
if (!e.newValue)
return;
createChildren();
this.preLoader.removeAllChildren(); // Remove the child once
added
}
override protected function createChildren():void
{
super.createChildren();
if (this.preLoader _ds.preloadSwf)
this.preLoader.addChild(SWFLoader(_ds.preloadSwf));
}
]]
/mx:Script
!-- Display Object used for preloading channels --
mx:Canvas id = preLoader
visible = false/
Obviously this is a bit of a hack to force the swfloader to start loading, but
I assume it's the cause of the problem.
Please let me know how to report the bug, and I can try and see if I can
recreate the issue, but it's a bit of a tricky one to recreate ;)
Ta
Rob
RE: [flexcoders] Re: Very odd null object RTE on FocusManager
If the bug is caused because you're pulling the object off stage as it gets
initialized, I don't think we'll spend too much energy on fixing that. I would
try to make sure every SWF is really done (sent applicationComplete) or only
remove the ones that are done.
I'm not sure what you mean by AS-Only way to preload the SWF. You can add
SWFLoaders in AS to any container, set its includeInLayout=false and
visible=false and they should load.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.http://www.adobe.com/
Blog: http://blogs.adobe.com/aharui
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf
Of rob_mcmichael
Sent: Tuesday, September 15, 2009 12:29 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Very odd null object RTE on FocusManager
Hi Alex,
Thanks for the help.
The problem is intermittent, perhaps happening one in three times if I have
more than three sub applications being loaded in.
I found the bug was related to an MXML component with two states, which is
being repeated. Only once is the alternate state used (if it's the first item).
I have therefore removed the state from the repeater, and put it before the
repeater. This has stopped the problem, but obviously not resolved the RTE from
potentially happening again somewhere else.
It's interesting what you say about removing the loader. In order to preload
the sub applications, I add them to a hidden container on the stage momentarily
to start them loading (If there is a way to do this in AS only please let me
know). The reference to the sub app swf is still retained for when the user
chooses to see it, and it is then attached to the stage again. The RTE happens
when there loading in, so I assume this supports that theory.
This is a section of the MXML component that preloads the swf
...
private function _preLoadSwf(e:PropertyChangeEvent):void
{
if (!e.newValue)
return;
createChildren();
this.preLoader.removeAllChildren(); // Remove the child once added
}
override protected function createChildren():void
{
super.createChildren();
if (this.preLoader _ds.preloadSwf)
this.preLoader.addChild(SWFLoader(_ds.preloadSwf));
}
]]
/mx:Script
!-- Display Object used for preloading channels --
mx:Canvas id = preLoader
visible = false/
Obviously this is a bit of a hack to force the swfloader to start loading, but
I assume it's the cause of the problem.
Please let me know how to report the bug, and I can try and see if I can
recreate the issue, but it's a bit of a tricky one to recreate ;)
Ta
Rob
[flexcoders] Re: Very odd null object RTE on FocusManager
I think that's fair enough.
As in AS only, I mean do I have to add it to stage? Ideally I would like to say
swfLoader.startLoading();
I will look for the applicationComplete though, or perhaps load them into the
view they will eventually be displayed in, and then just show them when
selected. I am not sure if there will be a performance issue there though.
Thanks for your help
Rob
--- In flexcoders@yahoogroups.com, Alex Harui aha...@... wrote:
If the bug is caused because you're pulling the object off stage as it gets
initialized, I don't think we'll spend too much energy on fixing that. I
would try to make sure every SWF is really done (sent applicationComplete) or
only remove the ones that are done.
I'm not sure what you mean by AS-Only way to preload the SWF. You can add
SWFLoaders in AS to any container, set its includeInLayout=false and
visible=false and they should load.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.http://www.adobe.com/
Blog: http://blogs.adobe.com/aharui
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of rob_mcmichael
Sent: Tuesday, September 15, 2009 12:29 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Very odd null object RTE on FocusManager
Hi Alex,
Thanks for the help.
The problem is intermittent, perhaps happening one in three times if I have
more than three sub applications being loaded in.
I found the bug was related to an MXML component with two states, which is
being repeated. Only once is the alternate state used (if it's the first
item). I have therefore removed the state from the repeater, and put it
before the repeater. This has stopped the problem, but obviously not resolved
the RTE from potentially happening again somewhere else.
It's interesting what you say about removing the loader. In order to preload
the sub applications, I add them to a hidden container on the stage
momentarily to start them loading (If there is a way to do this in AS only
please let me know). The reference to the sub app swf is still retained for
when the user chooses to see it, and it is then attached to the stage again.
The RTE happens when there loading in, so I assume this supports that theory.
This is a section of the MXML component that preloads the swf
...
private function _preLoadSwf(e:PropertyChangeEvent):void
{
if (!e.newValue)
return;
createChildren();
this.preLoader.removeAllChildren(); // Remove the child once added
}
override protected function createChildren():void
{
super.createChildren();
if (this.preLoader _ds.preloadSwf)
this.preLoader.addChild(SWFLoader(_ds.preloadSwf));
}
]]
/mx:Script
!-- Display Object used for preloading channels --
mx:Canvas id = preLoader
visible = false/
Obviously this is a bit of a hack to force the swfloader to start loading,
but I assume it's the cause of the problem.
Please let me know how to report the bug, and I can try and see if I can
recreate the issue, but it's a bit of a tricky one to recreate ;)
Ta
Rob
RE: [flexcoders] Re: Very odd null object RTE on FocusManager
Flex SWFs must be loaded on stage. I wouldn't even load them up front if you
don't have to. Everything costs somewhere.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.http://www.adobe.com/
Blog: http://blogs.adobe.com/aharui
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf
Of rob_mcmichael
Sent: Tuesday, September 15, 2009 1:19 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Very odd null object RTE on FocusManager
I think that's fair enough.
As in AS only, I mean do I have to add it to stage? Ideally I would like to say
swfLoader.startLoading();
I will look for the applicationComplete though, or perhaps load them into the
view they will eventually be displayed in, and then just show them when
selected. I am not sure if there will be a performance issue there though.
Thanks for your help
Rob
--- In flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com, Alex
Harui aha...@... wrote:
If the bug is caused because you're pulling the object off stage as it gets
initialized, I don't think we'll spend too much energy on fixing that. I
would try to make sure every SWF is really done (sent applicationComplete) or
only remove the ones that are done.
I'm not sure what you mean by AS-Only way to preload the SWF. You can add
SWFLoaders in AS to any container, set its includeInLayout=false and
visible=false and they should load.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.http://www.adobe.com/
Blog: http://blogs.adobe.com/aharui
From: flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com] On
Behalf Of rob_mcmichael
Sent: Tuesday, September 15, 2009 12:29 PM
To: flexcoders@yahoogroups.commailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Re: Very odd null object RTE on FocusManager
Hi Alex,
Thanks for the help.
The problem is intermittent, perhaps happening one in three times if I have
more than three sub applications being loaded in.
I found the bug was related to an MXML component with two states, which is
being repeated. Only once is the alternate state used (if it's the first
item). I have therefore removed the state from the repeater, and put it
before the repeater. This has stopped the problem, but obviously not resolved
the RTE from potentially happening again somewhere else.
It's interesting what you say about removing the loader. In order to preload
the sub applications, I add them to a hidden container on the stage
momentarily to start them loading (If there is a way to do this in AS only
please let me know). The reference to the sub app swf is still retained for
when the user chooses to see it, and it is then attached to the stage again.
The RTE happens when there loading in, so I assume this supports that theory.
This is a section of the MXML component that preloads the swf
...
private function _preLoadSwf(e:PropertyChangeEvent):void
{
if (!e.newValue)
return;
createChildren();
this.preLoader.removeAllChildren(); // Remove the child once added
}
override protected function createChildren():void
{
super.createChildren();
if (this.preLoader _ds.preloadSwf)
this.preLoader.addChild(SWFLoader(_ds.preloadSwf));
}
]]
/mx:Script
!-- Display Object used for preloading channels --
mx:Canvas id = preLoader
visible = false/
Obviously this is a bit of a hack to force the swfloader to start loading,
but I assume it's the cause of the problem.
Please let me know how to report the bug, and I can try and see if I can
recreate the issue, but it's a bit of a tricky one to recreate ;)
Ta
Rob
