Flex 例子

http://blog.csdn.net/sjz168/article/details/6980892

1，设置鼠标样式

//设置鼠标为忙：cursorManager.setBusyCursor();//设置鼠标为手：useHandCursor="true"  buttonMode="true"mouseChildren="false" 

2，引入外部字体：

[Embed(source="verdana.ttf", fontName='rotateFont', mimeType='application/x-font')] private var rotateFont:Class;

3，获取外部穿参：

public function getApplicationVariable(key:String):String{var returnValue:String = "";if (Application.application.parameters.hasOwnProperty(key)){returnValue = Application.application.parameters[key];}return returnValue;}

4，从浏览器URL获取参数：

public static function getQueryParameters():Object{<span style="white-space:pre"></span>var queryString:String;<span style="white-space:pre"></span>try{<span style="white-space:pre"></span>queryString= ExternalInterface.call("window.location.search.substring");<span style="white-space:pre"></span>}catch(error:Error)<span style="white-space:pre"></span>{<span style="white-space:pre"></span>logger.error("Error while getting query string", error);<span style="white-space:pre"></span>}<span style="white-space:pre"></span>if( queryString)<span style="white-space:pre"></span>{<span style="white-space:pre"></span>if( queryString.charAt(0) == '?' )<span style="white-space:pre"></span>queryString = queryString.substr(1);<span style="white-space:pre"></span>var loc = queryString.indexOf("#");<span style="white-space:pre"></span>if( loc >=0 )<span style="white-space:pre"></span>queryString = queryString.substr(0, loc);<span style="white-space:pre"></span>queryNameValue = URLUtil.stringToObject(queryString, "&");<span style="white-space:pre"></span>}<span style="white-space:pre"></span>else<span style="white-space:pre"></span>queryNameValue = new Object();<span style="white-space:pre"></span>return queryNameValue;}

5，String和Object互转：

var s:String = "name=Alex&age=21";var o:Object = URLUtil.stringToObject(s, "&", true);
Returns the object: { name: "Alex", age: 21 }

var o:Object = { name: "Alex", age: 21 };var s:String = URLUtil.objectToString(o,"&",true);trace(s);
Prints "name=Alex&age=21" to the trace log.
6，判断是否是上线，还是本地调试：
public static function isOnServer():Boolean{var url:String;try{url= ExternalInterface.call("window.location.href.toString");}catch (error:Error){logger.error("Error while getting launch url", error);}if(url){var server:String = URLUtil.getServerName(url);return (server != "localhost") ? false : true;}elsereturn false;}

7，获取浏览器地址：
var url:String = Application.application.systemManager.stage.loaderInfo.url;

8，异步访问解耦：
var responder:IResponder = new Responder(success, fault);var asyncToken:AsyncToken = httpService.send();asyncToken.addResponder(responder);
9，confirm弹出框：
Alert.show("提示内容","提示标题",Alert.OK|Alert.CANCEL,null,function(e:CloseEvent):void{    if(e.detail == Alert.OK)    {        Alert.show("你点击了确定");    }    else if(e.detail == Alert.CANCEL)    {        Alert.show("你点击了取消");    }});
flags属性可以以下类型的任意一种：1- Alert.YES2- Alert.NO3- Alert.YES | Alert.NO4- Alert.OK5- Alert.OK | Alert.YES6- Alert.OK | Alert.NO7- Alert.OK | Alert.YES | Alert.NO8- Alert.CANCEL9- Alert.YES | Alert.CANCEL10- Alert.NO | Alert.CANCEL11- Alert.YES | Alert.NO | Alert.CANCEL12- Alert.OK | Alert.CANCEL13- Alert.OK | Alert.YES | Alert.CANCEL14- Alert.OK | Alert.NO | Alert.CANCEL15- Alert.OK | Alert.YES | Alert.NO | Alert.CANCEL16- Alert.OK （和4一样）如果不填写flags，默认为4，即只有“确定”按钮
10，调用JS
通过ExternalInterface.call可以调用js中的对象，如dom对象，如：
var log : String = ExternalInterface.call("function(){return navigator.appVersion+'-'+navigator.appName;}") +"\n";

11， 日志
tracePanelTarget = new TracePanelTarget();tracePanelTarget.filters=["dcs.*", "components.*", "com.*", "util.*"];  //"flex-iframe",//tracePanelTarget.level = isProduction?LogEventLevel.INFO:LogEventLevel.ALL;tracePanelTarget.level =0;tracePanelTarget.includeDate = true;tracePanelTarget.includeTime = true;tracePanelTarget.includeCategory = true;tracePanelTarget.includeLevel = true;Log.addTarget(tracePanelTarget);Log.getLogger('components.custom.logger.LoggerConfig').info("Logging initialized.");

12，item render
public class SomeRenderer extends Label {private var _adg:AdvancedDataGrid;private var _column:AdvancedDataGridColumn;AdvancedDataGridpublic function HotLinkItemRenderer(){this.addEventListener(MouseEvent.CLICK, hotLinkClick);}protected function hotLinkClick(event:MouseEvent):void{if(this.text != "0" && _column){var hotLinkClickEvent:HotLinkClickEvent = new HotLinkClickEvent(HotLinkClickEvent.type);hotLinkClickEvent.advancedDataGridColumn = AdvancedDataGridColumn(_column);hotLinkClickEvent.rowIndex = this.listData.rowIndex;hotLinkClickEvent.columnIndex = this.listData.columnIndex;hotLinkClickEvent.text = this.text;hotLinkClickEvent.rowData = this.data;this._adg.dispatchEvent(hotLinkClickEvent);}}override public function set listData(value:BaseListData):void {  if(value){super.listData = value;_adg = AdvancedDataGrid(listData.owner);_column = listData ? AdvancedDataGrid(listData.owner).columns[listData.columnIndex] : null;}}  override public function set data(value:Object):void{super.data = value;if(this.text != "0"){this.setStyle('textDecoration','underline');this.useHandCursor = true;this.buttonMode = true;this.mouseChildren=false; }else{this.setStyle('textDecoration','none');this.useHandCursor = false;this.buttonMode = false;this.mouseChildren=true; }}}}