Flex编程技巧汇总-优快云博客

//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();
private   function showOne(): void {
tw.removeAllChildren();
tw.addChild(o);
}
private   function showTwo(): void {
tw.removeAllChildren();
tw.addChild(t);
}
//flex 绑定图片
[ Bindable ]
[ Embed (source= "img/1.jpg" )]
public   var 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
V ar 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 = new   Main ();
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
public   function 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];
}
private   function 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 Com bo box添加 – 请选择-
private   function 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
private   function 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 " />

private   function changBig(): void {
this .btn.scaleX=1.5;
this .btn.scaleY=1.5
}
private   function 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>
private   function ondragStart(event:MouseEvent): void {
Panel(event.target).startDrag();
}
private   function 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）

A pplication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
private   function 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
private   function checkPlay(): void {
var play:String=Capabilities.playerType;
Alert.show(play);
if (play== "ActiveX" ){
tt.text= " 你的浏览器是 --IE" ;
} else   if (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
private   function 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" )]
public var cur:Class;
private function 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);

转载于:https://my.oschina.net/u/941685/blog/670352

Flex开发各种用法总结