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POCan't get a working progress bar for file download AS3
 

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  1. POCan't get a working progress bar for file download AS3
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    <p>I'm currently enrolled in an ActionScript course, and cannot seem to get my progress bar to work correctly. We were tasked with creating a simple image loader application, which would access externally hosted images (through use of a PHP proxy script), and then spit the image onto the user's screen (with a progress event and progress bar to track the image's download progress).</p> <p>However, when I run it, I get these mysterious black graphical glitches everywhere, as well as a non-functioning progress bar. In some browsers I get the following error: "ArgumentError: Error #2109: Frame label NaN not found in scene NaN. at flash.display.MovieClip/gotoAndStop() at Document/imageLoadProgress().</p> <p>Here is my code - I cant for the life of me figure out what is wrong. I figure it has something to do with the imageLoadProgress() function, or my progress bar (which is just a simple 100-frame movie clip with a motion tween and a "stop()" command at the beginning).</p> <pre><code>public function loadImage() { var imageURL:String = imageArray[currentImageIndex]; if(loaderInfo.url.substr(0,4) == "http") { trace("we're online"); //use the proxy script //escape() will replace spaces in file names with %20 imageURL = "./image_proxy.php?filename=" + escape(imageArray[currentImageIndex]); } var imageRequest:URLRequest = new URLRequest(imageURL); this.imageLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, this.imageIOError); this.imageLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, this.imageLoadProgress); this.imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, this.imageLoadComplete); this.imageLoader.load(imageRequest); //end loadImage } public function imageIOError(e:Event) { trace("ImageIOError called. Error=" + e); //end imageIOError } public function imageLoadProgress(e:ProgressEvent) { var percentLoaded:Number = e.bytesLoaded/e.bytesTotal; percentLoaded = Math.round(percentLoaded * 100); //this.progress_mc.scaleY = percentLoaded; if (percentLoaded &lt; 1) { this.progressBar.gotoAndStop(1); } else { this.progressBar.gotoAndStop(percentLoaded); } //end imageLoadProgress } </code></pre>
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