Looping through an arrayCollection

Question

I need to:
1. loop through an array collection,
2. select a specific string from that collection
3. extract a url from that string
4. insert an additional string to the array with that extracted url
The code I am using so far is:
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="1024" minHeight="768">
    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import mx.rpc.events.ResultEvent;
            [Bindable]
            private var resultArrayCollection:ArrayCollection;
            private function doSearch (e:MouseEvent):void
                twitterSearch.url = "http://search.twitter.com/search.atom?q=LDN";
                twitterSearch.send();
            private function onResult (e:ResultEvent):void
                resultArrayCollection = e.result.feed.entry as ArrayCollection;
        ]]>
    </mx:Script>
    <mx:HTTPService id = "twitterSearch"
                    result="onResult(event)" />
the HTTP service pulls in data from Twitter search for example http://search.twitter.com/search.atom?q=LDN.
All help would be greatfully received.

Answer 1

Hi
I use this method to find objects in an ArrayCollection, you could probably modify accordingly.
public function findObjInArry(arryRef:ArrayCollection, objId:int):Object
         if(arryRef.length == 0)
             return null;
         for(var i:int=0; i<arryRef.length; i++)
             var arryObj:Obejct = arryRef.getItemAt(i) as Object;
             if(objId == arryObj.id)
                 return arryObj;
         return null;
Regarding adding items to ArrayCollection you can use the addItem methods.