Re: [flexcomponents] Weird error when creating Custom Component

[Firdosh Tangri]

that is very weird
i get  nothing on the screen and it keeps tracing the two trace statements
in the init function
and another strange bug is I added a count property to see how many times
its calling the function
so it increments it only once but keeps tracing it out, I think it might be
a flex builder bug more then
the frameworks, i`ll try tracing it out using the command line

heres a screenshot of what i get
http://seas.mgmt.purdue.edu/~firdosh/flex/flex.jpg<http://seas.mgmt.purdue.edu/%7Efirdosh/flex/flex.jpg>

firdosh


On 11/29/06, Alex Harui <[EMAIL PROTECTED]> wrote:

   Yeah, then addChild put on one the screen.


 ------------------------------

*From:* flexcomponents@yahoogroups.com [mailto:flexcompone
[EMAIL PROTECTED] *On Behalf Of *Firdosh Tangri
*Sent:* Tuesday, November 28, 2006 11:12 PM
*To:* flexcomponents@yahoogroups.com
*Subject:* Re: [flexcomponents] Weird error when creating Custom Component



so just using
var c:NumericSlider=new NumericSlider();
calls the trace in the constructor ??

I dont think it doesnt return but it keeps calling the same function again
and again
like a setInterval function call...

firdosh

 On 11/29/06, *Alex Harui* <[EMAIL PROTECTED]> wrote:

Hmm.  It worked for me.  Are you saying it never returns from addChild?


 ------------------------------

*From:* flexcomponents@yahoogroups.com [mailto:[EMAIL PROTECTED]
*On Behalf Of *Firdosh Tangri
*Sent:* Tuesday, November 28, 2006 8:03 PM
*To:* flexcomponents@yahoogroups.com
*Subject:* [flexcomponents] Weird error when creating Custom Component



Hey all,
            I am trying to create a custom component by extending the
UIComponent class [ AS3 only ] . I followed it pretty much from the
documents on flex.org. But here is the wierd part. If I add the component
using just mxml it works fine
traces out the statement in the constructor , shows the component. But if
I create the component using just as3 then it doest call the constructor.
Further more if I add the component it goes into a infinite loop.



cheers :)
firdosh





//MAIN MXML CLASS

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx=" http://www.adobe.com/2006/mxml";
layout="absolute"  creationComplete="init(event);" xmlns:FComponents="
org.fcomponents.*">
    <mx:Script>
        <![CDATA[
            import org.fcomponents.Test;
            import mx.containers.Panel;
            import org.fcomponents.NumericSlider;
            import flash.events.Event;

            private function init(evt:Event):void{
                trace("add");
                var c:NumericSlider=new NumericSlider();

                trace("call");

                //addChild(c);  // UNCOMMENT THIS FOR INFINITE LOOP
                //this.addChild(new NumericSlider());
                //<FComponents:NumericSlider />  IF YOU ADD THIS
STATETMENT BELOW IT WORKS FINE
            }

        ]]>
    </mx:Script>

</mx:Application>





//CUSTOM COMPONENT CLASS

package org.fcomponents
{
    import mx.core.UIComponent;
    import mx.controls.Button;
    import mx.controls.VSlider;
    import mx.controls.NumericStepper;
    import flash.events.Event;

    [Event (name="change" ,type="flash.events.Event") ]

    public class NumericSlider extends UIComponent
    {
        private var $stepper:NumericStepper;
        private var $slider:VSlider;
        private var $showSlider:Button;
        private var $valueChanged:Boolean;
        private var $value:Number=0;

        public function NumericSlider(){

            super();
            trace("NS Constructor");
            $valueChanged=false;
        }

        override protected function createChildren():void{
            super.createChildren();
            if(!$stepper){
                $stepper=new NumericStepper();
                addChild($stepper);
            }
        }

        override protected function commitProperties():void{
            super.commitProperties();
            if($valueChanged){
                $valueChanged=false;
                $stepper.value=$value;
                invalidateDisplayList();
            }
        }

        override protected function measure():void{
            super.measure();
            $stepper.width=100;
            $stepper.height=22;
        }

        override protected function
updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void{
            super.updateDisplayList (unscaledWidth,unscaledHeight);

        }
    }
}