[СлаваRa]

Main

package {
	import flash.display.Sprite;
 
	[SWF(width = "800", height = "600", frameRate = "30")]
 
	/**
	 * @author SlavaRa
	 */
	[Frame(factoryClass="Preloader")]
	public final class Main extends Sprite {
 
		public function Main():void {
			super();
		}
	}
}

Preloader

package {
	import flash.display.DisplayObject;
	import flash.display.MovieClip;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.Event;
	import flash.events.IOErrorEvent;
	import flash.events.ProgressEvent;
	import flash.utils.getDefinitionByName;
 
	/**
	 * @author SlavaRa
	 */
	public class Preloader extends MovieClip {
 
		public function Preloader() {
			super();
			this.configureStage();
			this.addListeners();
			//TODO: this.showAsset();
		}
 
		private function configureStage():void {
			super.stage.scaleMode = StageScaleMode.NO_SCALE;
			super.stage.align = StageAlign.TOP_LEFT;
		}
 
		private function addListeners():void {
			super.addEventListener(Event.ENTER_FRAME, this.onSuperEnterFrame);
			super.loaderInfo.addEventListener(IOErrorEvent.IO_ERROR, this.onIoError);
			super.loaderInfo.addEventListener(ProgressEvent.PROGRESS, this.onProgress);
		}
 
		private function onSuperEnterFrame(event:Event):void {
			if (super.currentFrame == super.totalFrames) {
				super.currentFrame;
				super.stop();
				this.removeListeners();
				//TODO: this.hideAsset();
				this.startup();
			}
		}
 
		private function onIoError(event:IOErrorEvent):void {
			trace("error:", event.text);
		}
 
		private function onProgress(event:ProgressEvent):void {
			//TODO: this.updateAsset();
		}
 
		private function removeListeners():void {
			super.removeEventListener(Event.ENTER_FRAME, this.onSuperEnterFrame);
			super.loaderInfo.removeEventListener(IOErrorEvent.IO_ERROR, this.onIoError);
			super.loaderInfo.removeEventListener(ProgressEvent.PROGRESS, this.onProgress);
		}
 
		private function startup():void {
			const c:Class = getDefinitionByName("Main") as Class;
			super.addChild(DisplayObject(new c()));
		}
	}
}