Regarding Flex 3, addChild with a Sprite instance as argument does not
work in contrast to what the Flex 3 documentation tells us. One of the
examples taken from the Flex 3 language reference:
public function SpriteExample() {
var child:Sprite = new Sprite();
child.addEventListener(MouseEvent.MOUSE_DOWN,
mouseDownHandler);
child.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
draw(child);
addChild(child);
}
The method signature is public function
addChild(child:DisplayObject):DisplayObject
Clearly the addChild should accept any instance of DisplayObject which
Sprite clearly is. It worries me deeply that a type cast is performed
in the private override mx_internal function
addingChild(child:DisplayObject):void
// Throw an RTE if child is not an IUIComponent.
var uiChild:IUIComponent = IUIComponent(child);
It worries me even more that this slipped through QA. Adobe please
explain why this is.
--- In [email protected], "Brian" <[EMAIL PROTECTED]> wrote:
>
> I tried that - same problem. In Container.addChild(DisplayObject), the
> first thing it does is check to see if the object passed in is an
> IUIComponent.
>
> I just realized I'm still using Flex2. Did this change in Flex 3? Is
> that the problem?
>
> --- In [email protected], Sherif Abdou <sherif626@> wrote:
> >
> > try adding it to a FlexSprite then to a UIComponenet or any of those
> FlexDisplayObject classes
> >
> >
> >
> > ----- Original Message ----
> > From: Brian <briforge@>
> > To: [email protected]
> > Sent: Saturday, March 1, 2008 5:32:13 PM
> > Subject: [flexcoders] Re: How can I add Sprite / MovieClip to stage
> without error of not UIComponent
> >
> > I'm echoing the request for an example here because I'm having the
> > exact same problem. How would you 'add everything meaningfull stuff as
> > child of that UIComponent' , when UIComponent. addChild( ) has the
same
> > restrictions as the original component I tried adding the
MovieClip to?
> >
> > I also tried adding a MovieClip to a TitleWindow for a popUp instead
> > of the stage and had the same error.
> >
> > --- In [EMAIL PROTECTED] ups.com, "helihobby" <helihobby@ ..> wrote:
> > >
> > > Can you post an example please ?
> > >
> > > --- In [EMAIL PROTECTED] ups.com, Jonathan Lee <jlee_lee740304@ >
> > > wrote:
> > > >
> > > > What I did is just add a UIComponent under the container as a
child.
> > > The add everything meaningful stuff as child of that UIComponent.
> > > >
> > > >
> > > >
> > > > helihobby <helihobby@> wrote: This
> > > is the exact error I get:
> > > >
> > > > Main Thread (Suspended: TypeError: Error #1034: Type Coercion
> failed:
> > > > cannot convert flash.display: :MovieClip@ 479b1f1 to
> > > mx.core.IUIComponen t.)
> > > >
> > >
> > mx.core::Container/http://www.adobe. com/2006/ flex/mx/internal
> ::addingChild
> > > >
> > > > mx.core::Container/ addChildAt
> > > > mx.core::Container/ addChild
> > > > TestAS12344/ setFire
> > > > TestAS12344/ onClick
> > > > TestAS12344/ __bb_click
> > > >
> > > > --- In [EMAIL PROTECTED] ups.com, "helihobby" <helihobby@>
wrote:
> > > > >
> > > > >
> > > > > How can I add Sprite / MovieClip to stage without error of not
> > > > > UIComponent ?
> > > > >
> > > > > Everytine I add a Sprite or MC I get the error ... even if I
> try to
> > > > > cast to a DisplayObject ...
> > > > >
> > > > > Any help is greatly appreciated ...
> > > > >
> > > > > Sean.
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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> >
>
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