Preloading several files, showing one combined "% loaded" value

[maguskrool]

Hello everyone.

For this website I'm developing I need to preload several files (images, xml, css and the main .swf). I have a preloader and I want it to show the total % loaded of the sum of all those files. From what I've learned so far, I need a ProgressEvent instance and its _bytesTotal and _bytesLoaded properties. I've managed to calculate the sum of all the file sizes (see code, perhaps there are simpler ways), but I'm puzzled as how to obtain a sum of all the files' _bytesLoaded. I thought of using a similar counter to the one I created for the sum of the _bytesTotal (_nTotalBytes), but I'm not sure how to reset it when I need to provide a new sum and even if the way the files are loaded (is there a coherent order I can depend on?) allows me to use this sort of approach.

Any thoughts on this are appreciated, thanks!

//will hold the sum of all files' bytesTotal
private var _nTotalBytes:Number = 0;

//slightly different for xml or css
var myFile = new Loader();
myFile.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, _allBytesTotal);
myFile.load(new URLRequest("content.swf");

//event handler
private function _allBytesTotal (evt:ProgressEvent):void {
evt.target.removeEventListener(ProgressEvent.PROGRESS, _allBytesTotal);
_nTotalBytes += evt.target.bytesTotal;
}

http://www.vivoeusebio.com

 

[kennethkawamoto]

Put URLs in an Array and load sequencially, so that you can accumulate completed bytes.

You may find Arthur Debert's Class interesting:

http://code.google.com/p/bulk-loader/

Kenneth Kawamoto

http://www.materiaprima.co.uk