flex 图片切换，可自己定义大小和图片路径

<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()" color="#EBF6F8" themeColor="#ECF2F5" borderColor="#EAEFF2" backgroundGradientAlphas="[1.0, 1.0]" backgroundGradientColors="[#FBF6F6, #FBF6F6]"><mx:Script><![CDATA[import mx.controls.Button;import mx.controls.Text;import mx.containers.HBox; import mx.controls.Alert; import mx.controls.Image; private var _width:int;private var _height:int;private var _times:int; //动画间隔//数据源 [Bindable] private var _imageArray:Array=new Array(); //图片系列数组 private var _imageMain:Image=new Image(); //主图片 private var _nextMain:Image=new Image(); //下一个要显示的图片 private var _currentImageNumber:int=0; //当前图片号 private var _imageMax:int=4; //图片总数 private var _time:Timer; //计时器 private var _imageMoveCounter:Number=0; //计数器// private var _imageSpace:int=400; //图片变换的时间间隔 private var _textArray:Array=new Array(); private var _num:int=0; // private var _url:String="http://localhost:8080/testXml/logoImage.xml"; private var _url:String="logoImage.xml";public function initApp():void { ExternalInterface.addCallback("getValite",init); } private function init():void{//this._url=url;try{ var req:URLRequest=new URLRequest(_url); new URLLoader(req) .addEventListener(Event.COMPLETE, function(event : Event) : void { var s:String=event.currentTarget.data; var example:XML = new XML(s); _width=example.@width; _height=example.@height; _times=example.@timer; _imageArray=ElementToAttr2(example.children()); nextInit(); } ); }catch(error:Error){ Alert.show("网络连接出错！"); }}private function nextInit():void{this.width=_width; this.height=_height;_time=new Timer(10,0);_time.start();_imageMain.alpha=1;_nextMain.alpha=0;_time.addEventListener(TimerEvent.TIMER,moveImage); _imageMax=_imageArray.length;_nextMain.x=_imageMain.x=0; _nextMain.y=_imageMain.y=0; _nextMain.width=_imageMain.width=_imageArray[_currentImageNumber].width; _nextMain.height=_imageMain.height=_imageArray[_currentImageNumber].height; _imageMain.source=_imageArray[_currentImageNumber].src; _nextMain.source=_imageArray[_currentImageNumber].src; _imageMain.addEventListener(MouseEvent.CLICK,clickImage); _nextMain.addEventListener(MouseEvent.CLICK,clickImage); this.addChild(_imageMain); this.addChild(_nextMain); var hbox:HBox=new HBox(); hbox.setStyle("verticalAlign","bottom"); hbox.x= _imageMain.x+_imageMain.width-_imageMax*40-10; hbox.y=_imageMain.y+_imageMain.height-20; for(var i:int=1;i<_imageMax+1;i++){ var button:Button=new Button(); button.width=30; button.height=15; button.label=new String(i); button.setStyle("fontWeight","normal"); button.setStyle("cornerRadius","0"); button.setStyle("fontSize","9"); button.setStyle("color","#000000"); button.setStyle("backgroundColor","#ffffff"); button.setStyle("fillColors",["#000000","#000000"]); button.setStyle("fillAlphas",[0.1, 0.1]); if(i==(_currentImageNumber+1)){ button.setStyle("color","#FF0000"); button.setStyle("backgroundColor","#FF0000"); button.setStyle("fillColors",["#FF0000","#FF0000"]); } button.addEventListener(MouseEvent.MOUSE_OVER,checkTextOver); button.addEventListener(MouseEvent.MOUSE_OUT,checkTextOut); _textArray.push(button); hbox.addChild(button); } this.addChild(hbox); } private function checkTextOver(event:MouseEvent):void{ clearTextColor(); _time.stop(); (event.currentTarget as Button).setStyle("color",0xff0000); (event.currentTarget as Button).setStyle("fillColors",["#000000","#FF0000"]); _currentImageNumber= new int((event.currentTarget as Button).label)-1; _imageMain.source=_imageArray[_currentImageNumber].src; _imageMain.alpha=1; var n:int=_currentImageNumber+1; if(n==_imageArray.length)n=0; _nextMain.source=_imageArray[n].src; _nextMain.alpha=0; _num=0; } private function checkTextOut(event:MouseEvent):void{ (event.currentTarget as Button).setStyle("color",0x000000); _currentImageNumber= new int((event.currentTarget as Button).label)-1; _imageMoveCounter=0; _time.start(); } private function clickImage(event:MouseEvent):void{ var request:URLRequest = new URLRequest(_imageArray[_currentImageNumber].url); navigateToURL(request,'_blank'); // navigateToURL(request,'_self'); } private function moveImage(event:Event):void{ _imageMoveCounter++; if(_imageMoveCounter==_times){ _currentImageNumber++; if(_currentImageNumber>=_imageMax)_currentImageNumber=0; if(_imageMain.alpha>_nextMain.alpha){ _nextMain.source=_imageArray[_currentImageNumber].src; }else{ _imageMain.source=_imageArray[_currentImageNumber].src; } _num=_num==0?1:0; _imageMoveCounter=0; clearTextColor(); (_textArray[_currentImageNumber] as Button).setStyle("color",0xff0000); (_textArray[_currentImageNumber] as Button).setStyle("fillColors",["#000000","#FF0000"]); }else if(0<_imageMoveCounter&&_imageMoveCounter<_times/2){ if(_num==0){ _imageMain.alpha-=2.0/_times; _nextMain.alpha+=2.0/_times; }else if(_num==1){ _imageMain.alpha+=2.0/_times; _nextMain.alpha-=2.0/_times; } } else if(_times/2<_imageMoveCounter&&_imageMoveCounter<_times){ if(_num==0){ _nextMain.alpha+=2.0/_times; _imageMain.alpha-=2.0/_times; if(_imageMain.alpha<0) _imageMain.alpha=0; if(_nextMain.alpha>1) _nextMain.alpha=1; }else if(_num==1){ _imageMain.alpha+=2.0/_times; _nextMain.alpha-=2.0/_times; if(_imageMain.alpha>1) _imageMain.alpha=1; if(_nextMain.alpha<0) _nextMain.alpha=0; } } } private function clearTextColor():void{ for(var k:int=0;k<_imageMax;k++){ (_textArray[k] as Button).setStyle("color",0x000000); (_textArray[_currentImageNumber] as Button).setStyle("fillColors",["#000000","#000000"]); } } //属性形式的XML public function ElementToAttr2(results:XMLList):Array { var array:Array=new Array(); for each(var child:XML in results){ var obj:Object=new Object(); var attNamesList:XMLList = child.@*; for(var i:int=0;i<attNamesList.length();i++) { obj[attNamesList[i].name().toString()]=attNamesList[i].toString(); } array.push(obj); } return array; }]]></mx:Script></mx:Application>

 

 

 

 

演示路径：

http://www.lvwlv.com/showModel/logo.html