Re: [flexcoders] Flex Book

[Phil Krasko]

CreationComplete on component call the httpservice


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-----Original Message-----
From: "Dan Vega" <[EMAIL PROTECTED]>

Date: Fri, 15 Feb 2008 15:55:24 
To:flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Flex Book


Rob,
Great tip on using http instead of xml. The problem I am having now is I think 
the component is trying to load before the service is completed.  I don't think 
the dataSet is filled when the component is setting up. I tried to create the 
component in AS but it would not let me. Any help is appreciated, I am racking 
my brain over this.
 
Dan

[SWF] /********/bin-debug/********.swf - 925,285 bytes after decompression
TypeError: Error #1009: Cannot access a property or method of a null object 
reference.
    at ********/loadContent()[C:\Program 
Files\Apache\htdocs********\src\********.mxml:62]
     at ********/__book_turnEnd()[C:\Program 
Files\Apache\htdocs\********\src\********.mxml:85]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at 
mx.core::UIComponent/dispatchEvent()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\core\UIComponent.as:9041]
     at qs.controls::FlexBook/dispatchEventForPage()[C:\Program 
Files\Apache\htdocs\********\src\qs\controls\FlexBook.as:733]
    at qs.controls::FlexBook/commitProperties()[C:\Program 
Files\Apache\htdocs\********\src\qs\controls\FlexBook.as:777]
     at 
mx.core::UIComponent/validateProperties()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\core\UIComponent.as:5660]
    at 
mx.managers::LayoutManager/validateProperties()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\managers\LayoutManager.as:517]
     at 
mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\managers\LayoutManager.as:637]
    at Function/http://adobe.com/AS3/2006/builtin::apply()
    at 
mx.core::UIComponent/callLaterDispatcher2()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\core\UIComponent.as:8450]
     at 
mx.core::UIComponent/callLaterDispatcher()[E:\dev\flex_3_beta3\sdk\frameworks\projects\framework\src\mx\core\UIComponent.as:8393]




here is my code

<?xml version="1.0" encoding="utf-8"?>
 <mx:Application xmlns:mx="http://www.adobe. <http://www.adobe.com/2006/mxml> 
com/2006/mxml" xmlns:l="*" layout="absolute" 
    xmlns:controls="qs.controls.*"
    creationComplete="initApp();" xmlns:containers="qs.containers.*" 
xmlns:effects="qs.effects.*"
     width="720" height="430">

    <mx:Style>
        FlexBook {        
            color: #000000;
            textRollOverColor:     #000000;        
            border-thickness: 0;
             border-style: none;
            page-slope: .6;
            active-grab-area: page;
            page-shadow-strength: 1;
            curve-shadow-strength: 1;
            auto-turn-duration: 1500;
         }
        
        Application {
            color: #F1F1CC;
            textRollOverColor:     #000;
            backgroundColor: #ffffff;
        }
        
        SuperImage {
            border-thickness: 0;
             border-style: none;            
        }        
    </mx:Style>
    
    <mx:Script>
        <![CDATA[
            import mx.rpc.events.ResultEvent;
            import qs.caching.ContentCache;
             import qs.controls.flexBookClasses.FlexBookEvent;        
            import mx.core.UIComponent;
            
            
            //variables
            private var loader:URLLoader;
            
             private function initApp():void    {
                dataSet.send();
                dataSet.addEventListener(ResultEvent.RESULT,onResult);
            }
            private function onResult(e:Event):void {                
                 var thumbs:XMLList = [EMAIL PROTECTED];
                
                for(var i:int =0;i<thumbs.length();i++)
                {
                    ContentCache.getCache().preloadContent(thumbs[i]);
                 }

            }
            private function loadContent(event:FlexBookEvent):void {
                var page:ImagePage = ImagePage(event.renderer);
                page.load();
            }
             private function next():void {
                if(book.currentPageIndex+1 < book.pageCount)
                    book.turnToPage(book.currentPageIndex + 1);
            }
            private function previous():void {
                 if(book.currentPageIndex > 0)
                    book.turnToPage(book.currentPageIndex -12);
            }

        ]]>
    </mx:Script>
    
    <mx:HTTPService id="dataSet" url="data/images.xml" resultFormat="e4x" />
 
    <controls:FlexBook id="book" width="720" height="430" horizontalCenter="0" 
backgroundColor="#000000"
        animateCurrentPageIndex="true"
        showCornerTease="true"
         edgeAndCornerSize="150"
        itemRenderer="ImagePage"
        content="{dataSet.lastResult..image}"
        turnStart="loadContent(event)"
        animatePagesOnTurn="true"
         turnEnd="loadContent(event)"
        />
                
</mx:Application>


   

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