AS工程中的Loading应用

今天又来介绍Loading...(-_-!!!...好像整天都介绍Loading..希望没误导各位...)

首先..由于AS工程没有帧..所以不能用常用的方法来做Loading..

这里介绍的方法使用元标签Frame(应该是元标签吧?还是叫元数据标签)

网上对Frame的介绍是...使用指定的类替换文档类...

并把其它的东西都丢到了该类的第二帧...

概念就不多说了...英文好的可以看看这个文章...http://www.bit-101.com/blog/?p=946

先看看效果..(PS...Load完以后有CD的＊＊喔...~~xixi);

放代码
Preloader类

package{import flash.display.DisplayObject;import flash.display.MovieClip;import flash.display.StageScaleMode;import flash.events.Event;import flash.events.ProgressEvent;import flash.text.TextField;import flash.text.TextFormat;import flash.utils.getDefinitionByName;/** * 加载类,由于原内容会放到此类的第二帧~所以需要使用MovieClip; * @author L4cd.Net */public class Preloader extends MovieClip{[Embed(source="l4cd_48_48.jpg")]private var LogoClass:Class;private var text:TextField;public function Preloader(){//不多说了stage.scaleMode = StageScaleMode.NO_SCALE;stage.showDefaultContextMenu = false;//显示一张图片..非必要with(addChild(new LogoClass())){x=(500-48)/2;y=(380-48)/2;}//加一个textField显示进度text = addChild(new TextField()) as TextField;with(text){defaultTextFormat = new TextFormat("宋体",12,0,null,null,null,null,null,"center");mouseEnabled = false;height = 16;x = (500-100)/2;y = 35+(380-15)/2;}//重要~侦听~loaderInfo.addEventListener(ProgressEvent.PROGRESS,progress);loaderInfo.addEventListener(Event.COMPLETE,complete);}//显示进度private function progress(e:ProgressEvent):void{text.text = (e.bytesLoaded/e.bytesTotal*100).toFixed(2)+"% Loaded";}private function complete(e:Event):void{//重要..加载完后...我们跳转到第二帧gotoAndStop(2);//获取文档类...然后显示,对于此步操作..有多种方法..有人习惯直接把原文档类addChild到此类当中..var mainClass:Class = Class(getDefinitionByName("AsProjectLoadingExample"));stage.addChild(new mainClass() as DisplayObject);//删除此类destroy();}private function destroy():void{loaderInfo.removeEventListener(ProgressEvent.PROGRESS,progress);loaderInfo.removeEventListener(Event.COMPLETE,complete);parent.removeChild(this);}}}

AsProjectLoadingExample类

package {import flash.display.Bitmap;import flash.display.BitmapData;import flash.display.Sprite;import flash.geom.Matrix;[SWF(width="500",height="380",backgroundColor="#FFFFFF",frameRate="24")]//注意此行,Preloader为类名[Frame(factoryClass="Preloader")]public class AsProjectLoadingExample extends Sprite{[Embed(source="CD＊＊.png")]private var ImageClass:Class;//嵌入一个2M的文件以显示加载效果[Embed(source="something.wma",mimeType="application/octet-stream")]private var SomeClass:Class;public function AsProjectLoadingExample(){//马赛格ing...var bmp:Bitmap = new ImageClass();var bit:BitmapData = new BitmapData(bmp.width/10,bmp.height/10,true,0);bit.draw(bmp,new Matrix(.1,0,0,.1));with (addChild(new Bitmap(bit))){scaleX = scaleY = 10;}}}}

我们也可以先用Flash做好loading效果..然后再嵌入到AS工程里..(下面的loading来自Pretty Loaded)