画像パス指定で読み込み完了をコールバックしてくれるクラス。

imageloader.as

package hrkd {
	import flash.display.Sprite;
	import flash.display.Bitmap;
	import flash.display.BitmapData;

	import flash.events.*;
	import flash.net.*;
	import flash.display.Loader;

	public class imageloader {
		//ビットマップデータ
		public var _bmp:Bitmap;
		public var _resultImg:Sprite = new Sprite();

		var _complate:Function;

		private var myRequest:URLRequest;
		public var _myLoader:Loader = new Loader();

		public function imageloader(url:String, complate:Function):void {
			// constructor code

			_myLoader.load(new URLRequest(url));
			_complate = complate;
			configureListeners(_myLoader.contentLoaderInfo);
		}

		function configureListeners(dispatcher:IEventDispatcher):void {
			dispatcher.addEventListener(Event.COMPLETE, completeHandler);
			dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
			dispatcher.addEventListener(Event.INIT, initHandler);
			dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
			dispatcher.addEventListener(Event.OPEN, openHandler);
			dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler);
			dispatcher.addEventListener(Event.UNLOAD, unLoadHandler);
		}

		function configureListeners_remove(dispatcher:IEventDispatcher):void {
			dispatcher.removeEventListener(Event.COMPLETE, completeHandler);
			dispatcher.removeEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
			dispatcher.removeEventListener(Event.INIT, initHandler);
			dispatcher.removeEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
			dispatcher.removeEventListener(Event.OPEN, openHandler);
			dispatcher.removeEventListener(ProgressEvent.PROGRESS, progressHandler);
			dispatcher.removeEventListener(Event.UNLOAD, unLoadHandler);
		}

		private function completeHandler(event:Event):void {
			configureListeners_remove(_myLoader.contentLoaderInfo);

			//画像配置
			_resultImg.addChild(_bmp);
			_complate();
		}

		private function httpStatusHandler(event:HTTPStatusEvent):void {
		//trace("httpStatusHandler: " + event);
		}

		private function initHandler(event:Event):void {
			//trace("initHandler: " + event);
			//trace("MIME :" + event.target.contentType);
		}

		private function openHandler(event:Event):void {
			// trace("openHandler: " + event);
		}

		private function progressHandler(event:ProgressEvent):void {
			//trace("progressHandler: bytesLoaded=" + event.bytesLoaded + " bytesTotal=" + event.bytesTotal);
		}

		private function unLoadHandler(event:Event):void {
			// trace("unLoadHandler: " + event);
		}

		private function ioErrorHandler(event:IOErrorEvent):void {
			//trace("ioErrorHandler: " + event);
		}
	}
}