2013-05-14 39 views
0

我写了下面的辅导员,我看到这里 这个代码,其主要目的是从XML导入图像到主舞台,然后和他们一起玩的“拖放功能”UILoader不作为MovieClip拖放;你怎么能做出的UILoader表现得像影片剪辑

当我打开它,一切都很好, 但是当我的图片点击查看“拖放功能” 我得到这个消息

TypeError: Error #1034: Type Coercion failed: cannot convert fl.containers::[email protected] to flash.display.MovieClip. 
    at forgallery_fla::MainTimeline/item_onMouseDown() 
TypeError: Error #1034: Type Coercion failed: cannot convert fl.containers::[email protected] to flash.display.MovieClip. 
    at forgallery_fla::MainTimeline/item_onMouseUp() 

如何来解决这个问题,使UILoader在UILoader的

import fl.containers.UILoader; 
import flash.net.URLLoader; 
import flash.net.URLRequest; 
import flash.events.Event; 

var count:Number = 0; 
//Requires: 
// UILoader control in Library 

var xmlLoader:URLLoader= new URLLoader(); 
var myXML:XML = new XML ; 
var uiLoader:UILoader= new UILoader(); 

xmlLoader.addEventListener(Event.COMPLETE, loadXML); 
xmlLoader.load(new URLRequest("Gallery.xml")); 

function loadXML(e:Event):void 
{ 
    myXML = new XML(e.target.data); 
    trace(myXML) 
    for(var i:int = 0; i <2; i++) 
    { 
    root["pic"+i].source = myXML.pic[i]; 
    } 
} 

var dragArray:Array = [pic0, pic1]; 

for(var i:int = 0; i < dragArray.length; i++) 
{ 
    dragArray[i].buttonMode = true; 
    dragArray[i].addEventListener(MouseEvent.MOUSE_DOWN, item_onMouseDown); 
    dragArray[i].addEventListener(MouseEvent.MOUSE_UP, item_onMouseUp); 
} 

function item_onMouseDown(event:MouseEvent):void { 
    var clip:MovieClip = MovieClip(event.currentTarget); 
    addChild(clip); //bring to the front 
    clip.startDrag(); 
} 
function item_onMouseUp(event:MouseEvent):void { 
    var clip:MovieClip = MovieClip(event.currentTarget); 
    clip.stopDrag(); 
} 

的XML树

<?xml version="1.0" encoding="UTF-8"?> 
<Gallery height="300" width="300" > 
    <pic>p1.jpg</pic> 
    <pic>p2.jpg</pic> 
    <pic>p3.jpg</pic> 


</Gallery> 

回答

0

你不必投你UILoader作为MovieClipstartDragSprite的方法。 UILoaderSprite,而不是MovieClip

function item_onMouseDown(event:MouseEvent):void { 
    var clip:Sprite = Sprite(event.currentTarget); 
    addChild(clip); //bring to the front 
    clip.startDrag(); 
} 

您可能已经在UILoader reference中发现了这一点。