Flash Builder Rss Feed有效,但必须将每篇文章链接到其原始网页。怎么样?

时间:2012-06-10 10:21:54

标签: actionscript-3 flex rss flash-builder flex4.5

以下是我的Flash Builder 4.5项目中提供RSS-feed的代码。 Feed正确显示,但我在链接每篇新闻文章时遇到一些问题。因此,当您单击文章标题时,它应链接到相应的网页。我已经能够为每篇文章(数据网格中的第3列)提取网址,并且我还创建了一个基本功能,当您单击数据网格时链接到谷歌。我需要的是当你点击一行时,你会转到相应的网页。欢迎任何帮助!

<?xml version="1.0" encoding="utf-8"?>
<s:NavigatorContent xmlns:fx="http://ns.adobe.com/mxml/2009" 
                xmlns:s="library://ns.adobe.com/flex/spark" 
                xmlns:mx="library://ns.adobe.com/flex/mx"
                creationComplete="runningrssfeedstart(event)">
<fx:Declarations>
    <s:HTTPService id="runningrssfeed"
                   url="{rss_request}"
                   result="runningrssfeed_resultHandler(event)"
                   fault="runningrssfeed_faultHandler(event)"/>

    <s:ArrayCollection id="myAc"/>
</fx:Declarations>

<fx:Script>
    <![CDATA[

        //imported classes
        import mx.collections.XMLListCollection;
        import mx.controls.Alert;
        import mx.core.mx_internal;
        import mx.events.FlexEvent;
        import mx.formatters.DateBase;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;
        import mx.utils.object_proxy;

        [Bindable]
        public var rss_request:String;


        //parameters voor rss-feed + opdracht de httpservice te starten
        public function runningrssfeedstart(event:FlexEvent):void
        {
            rss_request = 'http://www.coolrunning.com/engine/affiliate/rssLatest.rss';
            runningrssfeed.send();
        }

        //Als rss werkt, neem dan info van volgende pad
        protected function runningrssfeed_resultHandler(event:ResultEvent):void
        {
            myAc = event.result.rss.channel.item;
        }

        //Als rss functie mislukt, toon dan alert mat fault string
        protected function runningrssfeed_faultHandler(event:FaultEvent):void
        {
            Alert.show(event.fault.faultString);
        }

        //opent site van nieuwsbericht hoe google veranderen in juiste url?
        public function openRss(event:MouseEvent):void
        {
            navigateToURL(new URLRequest("http://www.google.com"), "_blank");
        }

    ]]>
</fx:Script>
<mx:DataGrid click="openRss(event)" left="105" top="45" width="450" height="380" dataProvider="{myAc}" headerStyleName="headerBold">
    <mx:columns>
        <mx:DataGridColumn id="rssTitel" width="320" headerText="Artikel" dataField="title"/>
        <mx:DataGridColumn headerText="Datum" dataField="pubDate"/>
        <mx:DataGridColumn headerText="url" dataField="link"/>
    </mx:columns>
</mx:DataGrid>

1 个答案:

答案 0 :(得分:2)

如果您使用Spark DataGrid而不是mx DataGrid(我可以认为没有理由不这样做),您可以简单地使用它的'gridClick'事件处理程序:< / p>

<s:DataGrid dataProvider="{dp}" gridClick="openRssAt(event.rowIndex)">      
    <s:columns>
        <s:ArrayList>
            <s:GridColumn dataField="title" />
            <s:GridColumn dataField="pubDate" />
            <s:GridColumn dataField="link" />
        </s:ArrayList>
    </s:columns>
</s:DataGrid>

public function openRssAt(index:int):void {
    var url:String = dp.getItemAt(index).link;
    navigateToURL(new URLRequest(url), "_blank");
}

但是,如果您希望坚持使用mx DataGrid,则可以完全相同的方式使用itemClick事件处理程序:

<mx:DataGrid dataProvider="{dp}" itemClick="openRssAt(event.rowIndex)">
    <mx:columns>
        <mx:DataGridColumn dataField="title"/>
        <mx:DataGridColumn dataField="pubDate"/>
        <mx:DataGridColumn dataField="link"/>
    </mx:columns>
</mx:DataGrid>