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POCan not able to download image from web in flex mobile app
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  1. POCan not able to download image from web in flex mobile app
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    copied!<p>I want to download an image from <code>URL</code> to my <code>Mobile</code> using <code>Flex Mobile</code>. I have found <a href="http://blog.flexexamples.com/2007/07/28/downloading-files-in-flex-using-the-filereference-class/" rel="nofollow">This</a> and tried this: </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;s:View xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" title="HomeView"&gt; &lt;fx:Declarations&gt; &lt;!-- Place non-visual elements (e.g., services, value objects) here --&gt; &lt;fx:Model id="fileRefModel"&gt; &lt;file&gt; &lt;creationDate&gt;{""}&lt;/creationDate&gt; &lt;creator&gt;{""}&lt;/creator&gt; &lt;modificationDate&gt;{""}&lt;/modificationDate&gt; &lt;name&gt;{""}&lt;/name&gt; &lt;size&gt;{""}&lt;/size&gt; &lt;type&gt;{""}&lt;/type&gt; &lt;/file&gt; &lt;/fx:Model&gt; &lt;/fx:Declarations&gt; &lt;fx:Script&gt; &lt;![CDATA[ import mx.collections.ArrayCollection; import flash.net.FileReference; [Bindable] private var arrColl:ArrayCollection; // URL of the file to download. private const FILE_URL:String = "http://www.thebiblescholar.com/android_awesome.jpg"; private var fileRef:FileReference; private var urlReq:URLRequest; private function init():void { // Initialize the array collection to an empty collection. arrColl = new ArrayCollection(); // Set up the URL request to download the file specified by the FILE_URL variable urlReq = new URLRequest(FILE_URL); // Define file reference object and add a bunch of event listeners. fileRef = new FileReference(); fileRef.addEventListener(Event.CANCEL, doEvent); fileRef.addEventListener(Event.COMPLETE, doEvent); fileRef.addEventListener(Event.OPEN, doEvent); fileRef.addEventListener(Event.SELECT, doEvent); fileRef.addEventListener(HTTPStatusEvent.HTTP_STATUS, doEvent); fileRef.addEventListener(IOErrorEvent.IO_ERROR, doEvent); fileRef.addEventListener(ProgressEvent.PROGRESS, doEvent); fileRef.addEventListener(SecurityErrorEvent.SECURITY_ERROR, doEvent); } private function doEvent(evt:Event):void { // Create shortcut to the FileReference object. var fr:FileReference = evt.currentTarget as FileReference; // Add event order and type to the DataGrid control. arrColl.addItem({data:arrColl.length+1, type:evt.type, eventString:evt.toString()}); try { // Update the Model. fileRefModel.creationDate = fr.creationDate; fileRefModel.creator = fr.creator; fileRefModel.modificationDate = fr.modificationDate; fileRefModel.name = fr.name; fileRefModel.size = fr.size; fileRefModel.type = fr.type; // Display the Text control. //txt.visible = true; } catch (err:*) { // uh oh, an error of sorts. } } private function downloadSourceCodeZip():void { // Clear existing array collection. arrColl = new ArrayCollection(); fileRef.download(urlReq); // Here it gives me Exception &gt;&gt; (Suspended: TypeError: Error #1009: Cannot access a property or method of a null object reference.) } ]]&gt; &lt;/fx:Script&gt; &lt;s:Button label="Download" click="downloadSourceCodeZip()"/&gt; </code></pre> <p> but I'm getting <code>Suspended: TypeError: Error #1009: Cannot access a property or method of a null object reference.</code> how to make this code work for me></p>
 

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