Flex的基础用法【转】

//获得屏幕的分辨率

var x:Number=Capabilities.screenResolutionX;

var y:Number=Capabilities.screenResolutionY;

Alert.show("x="+x+"y="+y);

第二种方法

Alert.show(stage.fullScreenWidth+"=="+stage.fullScreenHeight);

 

//获得stage（工作区）的宽、高

Alert.show(stage.stageWidth+"=="+stage.stageHeight);

 

//读取xml文件private function readxml2():void

{

var urlrequest:URLRequest=new URLRequest("file/stu.xml");

var urlloader:URLLoader=new URLLoader(urlrequest);

urlloader.addEventListener(Event.COMPLETE, completehandler);

}

 

private function completehandler(event:Event):void

{

var xml:XML=new XML(event.target.data);

// var arr:Array=new Array(xml);

this.dg.dataProvider=xml.children();

this.tree.dataProvider=xml;

this.cb.dataProvider=xml.children();

// this.hlist.dataProvider=xml.children();

}

//flex 获得系统路径

var add:String=ExternalInterface.call("window.location.href.toString",1);

Alert.show(add);

 

//背景颜色不断变化

private function changeBG():void{

var mytime:Timer=new Timer(2000);

mytime.addEventListener(TimerEvent.TIMER,changHandle);

mytime.start();

}

private function changHandle(e:TimerEvent):void{

this.setStyle("backgroundColor",Math.random()* 0xffffff);

}

 

//获得键盘按下的键的值

public function getCode():void

{

btn.addEventListener(KeyboardEvent.KEY_DOWN, keyHandle);

}

 

function keyHandle(event:KeyboardEvent):void

{

Alert.show("你按下了:" + String.fromCharCode(event.charCode));

}

//动态加载不同界面

import commont.Two;

import commont.One;

var t:Two=new Two();

var o:One=new One();

privatefunction showOne():void{

tw.removeAllChildren();

tw.addChild(o);

}

privatefunction showTwo():void{

tw.removeAllChildren();

tw.addChild(t);

}

//flex 绑定图片

[Bindable]

[Embed(source="img/1.jpg")]

publicvar phone1:Class;

 

//日期中文标题

<mx:DateChooser id="dtchoose" x="219" y="83" dayNames="[日,一,二,三,四,五,六]" monthNames="[一月,二月,三月,四月,五月,六月,七月,八月,九月,十月,十一月,十二月]"change="disDate()" minYear="2007"/>

//选择日期 dateChoose

function disDate():void{

txtDate.text=fm.format(dtchoose.selectedDate.toLocaleDateString());

}

 

//flex 中添加html标记

<mx:TextArea id="text" creationComplete="init()" width="248" height="59">

<mx:htmlText>

<![CDATA[

<input type='file'/>

<a href="http://www.baidu.com">你哈!!!</a>

]]>

</mx:htmlText>

</mx:TextArea>

 

//flex 带下划线的链接

this.lblLink.htmlText="<a href='http://www.google.com' target='_blank'>新闻</a>";<mx:Label x="524" y="393" text="Hellollll" id="lblLink" rollOver="focusManager.deactivate()" color="blue" opaqueBackground="#ffffff"

rollOut="focusManager.activate()" styleName="Label"

creationComplete="link()"/>.Label{text-roll-over-color:red; text-decoration:underline; background-color:green; font-size:12px; text-selected-color:red;}

 

//flex 转向 URL

Var url:URLRequest=new URLRequest(“http://www.google.cn”);

navigateToURL(url,”_self”);//在本页打开

navigateToURL(url,”_blank”);//在新的一页打开

 

//弹出对话框---------非模式打开---------

PopUpManager.createPopUp(this,类（界面）的名称);

---------模式打开---------

var ep:Main=newMain ();

PopUpManager.addPopUp(ep,this,true);//界面，打开窗口父类，是否模式

PopUpManager.centerPopUp(ep);//在父类窗口居中

 

//-----Alert的用法

publicfunction test():void

{

var glow:GlowFilter=new GlowFilter();

glow.color=StyleManager.getColorName("blue");//边框颜色

glow.strength=5;

glow.alpha=0.8;

var alert:Alert=Alert.show("是否选择","提示",Alert.YES|Alert.NO,this,alertHandle);

alert.filters=[glow];

}

privatefunction alertHandle(event:CloseEvent):void{

if(event.detail==Alert.YES){

lbl.text="是";

}else{

lbl.text="否";

}

}

 

<mx:Button x="62" y="80" label="Button" click="test()"/>

<mx:Label x="62" y="37" text="Label" width="65" id="lbl"/>

 

//flex Combobox添加 –请选择-

privatefunction loadCB(){

var arr:Array=new Array("-请选择-");

for(var i:int=1;i<10;i++){

arr[i]=i;

}

this.cb.dataProvider=arr;

}

 

 

//combobox 选择的值和下标

privatefunction selected():void{

Alert.show(cb.selectedItem.toString()+"下标:"+cb.selectedIndex);

}

<mx:ComboBox x="194" y="80" id="cb" creationComplete="loadCB()"change="selected()">

 

//鼠标移动变大，Button加图片，变手型

<mx:Button x="72" y="80" label="Button" click="test()" mouseMove="changBig()" mouseOut="changSmall()" id="btn" height="52" icon="@Embed(source='img/3.jpg')"

labelPlacement="bottom" width="67" useHandCursor="true" buttonMode="true"/>

 

privatefunction changBig():void{

this.btn.scaleX=1.5;

this.btn.scaleY=1.5

}

privatefunction changSmall():void{

this.btn.scaleX=1;

this.btn.scaleY=1;

}

 

//flex panel 拖动效果

<mx:Panel x="194" y="125" width="192" height="121" layout="absolute" id="panel" mouseDown="ondragStart(event)" mouseUp="ondragStop(event)">

</mx:Panel>

privatefunction ondragStart(event:MouseEvent):void{

Panel(event.target).startDrag();

}

privatefunction ondragStop(event:MouseEvent):void{

Panel(event.target).stopDrag();

}

 

//写入共享数据

share=SharedObject.getLocal("username");

share.data.userName=txtUser.text;

share.flush();

 

//读取共享数据

var share:SharedObject=SharedObject.getLocal("username");

Alert.show(share.data.userName);

 

 

 

 

 

 

 

//jsp/html文件嵌入到flex中（需要把flexiframe.swc放在项目的flex_libs下）

 

Application标签内xmlns:code=http://code.google.com/p/flex-iframe/

 

<mx:HDividedBox x="0" y="10" width="100%" height="500">

<mx:Panel width="30%" height="500" layout="absolute">

 

</mx:Panel>

<mx:Panel width="70%" height="500" layout="absolute">

<code:IFrame id="frm" source="file/万年历.html" height="100%" width="100%"/><!-这是最重要的-à

</mx:Panel>

</mx:HDividedBox>

 

//检查使用的操作系统

privatefunction checkOS():void{

var os:String=Capabilities.os;

tt.text="你的操作系统是:--"+os;

}

 

//检查所使用的浏览器

privatefunction checkPlay():void{

var play:String=Capabilities.playerType;

Alert.show(play);

if(play=="ActiveX"){

tt.text="你的浏览器是--IE";

}elseif(play=="PlugIn"){

tt.text="你的浏览器是--Mozilla-Firefox";

}else{

tt.text="你的浏览器是--其他";

}

}

 

//检查player的版本和使用的语言

privatefunction other():void{

var v:String=Capabilities.version;

var l:String=Capabilities.language;

tt.text="你的flayer版本号：--"+v+

"/r/n你的语言是：--"+l;

}

 

//改变鼠标样式

[Bindable]

[Embed(source="img/157.jpg")]

publicvar cur:Class;

privatefunction initCursor(event:Event){

CursorManager.setCursor(cur);

}

 

//设置AdvancedDataGrid的表头竖线为空

headerSortSeparatorSkin="mx.skins.ProgrammaticSkin"

 

 

 

 

 

//获得鼠标坐标

var cx:Number=CursorManager.currentCursorXOffset;

var cy:Number=CursorManager.currentCursorYOffset;

var id:int=CursorManager.currentCursorID;

Alert.show("x:="+cx+"y:="+y+"id="+id);