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flex custom layout && easy flex skinning

The Matrix — Wed, 25 Nov 2009 04:25:00 GMT

http://www.insideria.com/2009/05/flex-4-custom-layouts.html

http://www.insideria.com/2009/10/easy-flex-skinning-with-firewo.html

The Matrix 2009-11-25 12:25 发表评论

flex中如何用�~�程的方式实现State

The Matrix — Wed, 11 Nov 2009 13:59:00 GMT

在Flash Builder 4 Beta 2版本中，使用mxml方式实现state的切换有了很大改�q�，使用��h��更方便，具体可参见下文：

http://onflex.org/learn/fx4/index.php?page=States

看完�q�篇文章后，惛_��一个问题，如何用编�E�的方式实现切换呢，找了参考资料，实现了一个例子，代码如下�Q?/p>

开发环境：Flash Builder 4 Beta2

xml version="1.0" encoding="utf-8"?>
<s:Application
    xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark"
    creationComplete="creationCompleteHandler(event)">
    <fx:Script>

            import mx.core.UIComponent;
            import mx.events.FlexEvent;
            import mx.states.SetProperty;
            import mx.states.State;

            import spark.components.Label;
            import spark.components.Panel;

            private var stateArray : Array;
            private var state1 : State;
            private var state2 : State;

            protected function creationCompleteHandler(event:FlexEvent):void
            {
                state1 = new State();
                state1.name="state1";

                state2 = new State();
                state2.name="state2";

                var stateArray1:Array = new Array();
                var stateArray2:Array = new Array();

                state1.overrides = stateArray1;
                state2.overrides = stateArray2;

                stateArray = new Array();
                stateArray.push(state1);
                stateArray.push(state2);
                this.states = stateArray;

                var panel:Panel = new Panel();
                group.addElement(panel);
                var label:Label = new Label();
                panel.addElement(label);

                buildStates(stateArray1, stateArray2, panel, label);
                this.currentState = "state1";
            }

            private function buildStates(stateArray1:Array, stateArray2:Array,
                compenent1:UIComponent, compenent2:UIComponent) : void{

                stateArray1.push(makeSetProp(compenent1, "title", "Panel1"));
                stateArray1.push(makeSetProp(compenent2, "text", "One"));

                stateArray2.push(makeSetProp(compenent1, "title", "Panel2"));
                stateArray2.push(makeSetProp(compenent2, "text", "Two"));
            }

            private function makeSetProp(target:UIComponent, name:String, value:*):SetProperty{
                var sp:SetProperty = new SetProperty();
                sp.target = target;
                sp.name = name;
                sp.value = value;
                return sp;
            }
        ]]>
    fx:Script>

    <s:VGroup autoLayout="true" horizontalAlign="center">
        <s:HGroup horizontalCenter="0">
            <s:Button label="One"
                click="this.currentState='state1'"/>
            <s:Button label="Two"
                click="this.currentState='state2'"/>
        s:HGroup>
        <s:HGroup id="group" horizontalCenter="0">
        s:HGroup>
    s:VGroup>

s:Application>

The Matrix 2009-11-11 21:59 发表评论

Flex Clear Toolkit3.1

The Matrix — Sun, 12 Apr 2009 12:57:00 GMT

前两天在InfoQ上看��C��文章：利用Clear Toolkit�q�接Flex与Java开�?/a>�Q�今天下载了说明文档�_�略了翻了一遍，Clear Toolkit包含五个部分�Q�分别是�Q?/p>

Clear Data Builder�Q�这是个Eclipse插�g�Q�可以根据SQL语句或Java数据传输对象为BlazeDS或LCDS自动生成CRUD应用�?

DTO2Fx�Q�该插�g会根据Java�c�d��自动生成对应的ActionScript�c�R�?

Log4Fx是个构徏于Flex logging API之上的Eclipse插�g�Q�它会自动化日志处理�q�且更加灉|��Q�也更加友好�?

Fx2Ant插�g会�ؓFlex Builder��目生成优化的Ant构徏脚本�?

clear.swc是个增强的Flex�l��g库�?

暂时用不到这个工��P��记录留待备查�?/p>

The Matrix 2009-04-12 20:57 发表评论

Flex3 + Spring配置

The Matrix — Sat, 09 Aug 2008 15:58:00 GMT

具体�q�程参见�Q�http://coenraets.org/flex-spring/

��要描�q�C��下：
1、首先要�l�承FlexFactory�Q�实现Spring与Flex的集成，上文中已�l�提供了具体实现�Q�下载即可�?br />
2、在web.xml中配�|�Spring�Q�如下：

    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>/WEB-INF/applicationContext.xmlparam-value>
    context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

3、在service-config.xml配置文�g中添�?br />

    <factories>
        <factory id="spring" class="flex.samples.factories.SpringFactory"/>
    factories>

4、修改remote-config.xml中原有的destination配置�Q�原为：

    <properties>
        <source>com.bluesky.flexpsp.PsPDataServicesource>
    properties>

修改为：

    <properties>
        <factory>springfactory>
        <source>pspDataServicesource>
    properties>

The Matrix 2008-08-09 23:58 发表评论

Flex3中数据访问的几种方式

The Matrix — Wed, 30 Jul 2008 04:39:00 GMT

1、��用HTTPService
    使用HTTPService可以直接讉K��ASP.NET、JSP、Servlet、PHP�{�页面，此种方式最为简单直接�?br />
2、��用WebService
    使用WebService可以直接讉K��互联�|�上各大公司提供的WebService服务�Q�该�U�方式对做互联网应用开发可能用的比较多�?br />
3、��用RemoteObject
    此种方式可以直接讉K��Java Class的method�Q�可以采用此�U�方式构�?Flex + Spring + Hibernate的应用�?br />
4、��用Message
    此种方式弥补了WEB应用的缺点，使得��览器和Server端可以进行双向交互，可以用于构徏复杂的C/S方式的企业应用�?br />
不同方式的具体访问方法在BlazeDS的Test中都有样例�?br />
�W�一、第二种方式不需要服务端有特�D�设�|�，只要客户端能够解析服务端�q�回的信息即可�?br /> �W�三、第四种方式需要��用BlazeDS�q�行配置后方可��用，或者��用ColdFusion�?

The Matrix 2008-07-30 12:39 发表评论

Flex - BlazeDS 安装指南

The Matrix — Wed, 30 Jul 2008 04:38:00 GMT

�?http://opensource.adobe.com/ 可以下蝲BlazeDS�Q�下载后解压��x��地�?br />
BlazeDS includes the following Web Application Archive (WAR) files:

blazeds.war - The primary BlazeDS WAR file: use this as a starting point for building your BlazeDS application.
samples.war - Sample BlazeDS applications.
ds-console.war - Simple monitoring application for BlazeDS deployments.

在访问BlazeDS的Sample前，需要首先运行install_root/sampledb目录下的HSQLDB数据库，�q�行方式为启动startdb.bat脚本

然后启动tomcat�Q�即可访问http://localhost:8400/�Q�体验BlazeDS了�?br />
如果没有下蝲tomcat和BlazeDS的整合包�Q�直接安装BlazeDS的话�Q�对于不同的应用服务器需要进行一些额外的配置�Q�具体参见如下链接：

http://opensource.adobe.com/wiki/display/blazeds/Installation+Guide

The Matrix 2008-07-30 12:38 发表评论

ActionScript3中的反射

The Matrix — Fri, 15 Jun 2007 15:16:00 GMT

使用flash.utils.getDefinitionByName()函数可以�Ҏ��c�d��创徏�cȝ��实例�Q�具体可以参照API文档�?

The Matrix 2007-06-15 23:16 发表评论

The Matrix — Tue, 16 Jan 2007 14:35:00 GMT

1、查找数�l�中的元素可以��用ascb.util.ArrayUtilities中的findMatchIndex()�?span class=docEmphasis>findLastMatchIndex()�?span class=docEmphasis>findMatchIndices()�Ҏ��Q�具体参考API�?br>
2、��用splice()�Ҏ��可以�U�除数组中间的元素，使用pop()�Ҏ��U�除数组的最后一个元素，使用shift()�Ҏ��U�除数组的第一个元素。也可以使用splice()�Ҏ��向数�l�中增加元素�?br>
3、将数组转化为String�Q�可以��用join()�Ҏ��?br>例：
var letters:Array = ["a", "b", "c"];
trace(letters.join()); // Displays: a,b,c

The Matrix 2007-01-16 22:35 发表评论

Flex2中的�q�行环境

The Matrix — Sat, 13 Jan 2007 07:42:00 GMT

flash.system.Capabilities�c�L��供了很多静态方法返回运行flash的player、计��机的信息，比如操作�pȝ��、语�a�、声韟뀁视频能力等�?br /> �q�有一些其它的�c�L��?
flash.display.Stage和flash.system.Security允许你控制播攑֙�的右键弹��单和讄��对话框�?br /> flash.display.Stage�q�可以控制播攑֙�播放的视频的�~�放比例和位�|��?br /> flash.system.Capabilities.os �q�回操作�pȝ��信息。代码如下：

    var os:String = System.capabilities.os.substr(0, 3);
    if (os == "Win") {
        // Windows-specific code goes here
    } else if (os == "Mac") {
        // Mac-specific code goes here
    } else {
        // Must be Unix or Linux
    }

flash.system.Capabilities.playerType   不同的类型包�?
    Browser plug-in that runs in web browsers such as Mozilla or Firefox
    ActiveX Control used by Internet Explorer
    Standalone player, which plays .swfs outside of the browser
    External player, which is the player integrated in the Flash IDE

flash.system.capabilities.screenResolutionX �?screenResolutionY获取屏幕分��L率�?
stage.scaleMode属性可以设�|�一个movie如何填充播放器，包括比例�{��?br /> 有四�U�模式，以静态常量的�Ҏ��定义在flash.display.StageScaleMode�c�M��Q�分别�ؓ�Q�EXACT_FIT、NO_BORDER、NO_SCALE、SHOW_ALL�?br />
stage.align属性可以设�|�一个movie的排列方式，也以静态常量的方式定义在flash.display.StageAlign�c�M��?br />     如下�Q?br />                               Vertical   Horizontal
   StageAlign.TOP              Top         Center
   StageAlign.BOTTOM           Bottom      Center
   StageAlign.LEFT             Center      Left
   StageAlign.RIGHT            Center      Right
   StageAlign.TOP_LEFT         Top         Left
   StageAlign.TOP_RIGHT        Top         Right
   StageAlign.BOTTOM_LEFT      Bottom      Left
   StageAlign.BOTTOM_RIGHT     Bottom      Right

flash.system.Capabilities的hasAudio和hasMP3属性可以判断flash player所在设备的音频能力�?br /> stage.showDefaultContextMenu属性设为false�Q�可以隐藏掉一些系�l�默认菜单�?

The Matrix 2007-01-13 15:42 发表评论

flex2中的Dispatching Event

The Matrix — Sat, 13 Jan 2007 07:09:00 GMT

事�g是实现对象通讯的一个重要手�D�，对于构徏一个灵�zȝ��pȝ��来说是非常必要的。在Flash Player 9中，��事件发送机制内建在了flash.events.EventDispatcher�c�M��。所有需要发送事件的�c�都必须�l�承EventDispatcher�c�R�?br>调用EventDispatcher�c�M��的addEventListener( ) and removeEventListener( )�Ҏ��Q�就可以注册或者移除事件监听器。EventDispatcher中还定义了dispatchEvent()�Ҏ��Q�可以��用该�Ҏ��发送事件。dispatchEvent()�Ҏ��臛_��需要一个参敎ͼ�即flash.events.Event对象或者它的子�c�R�?/p>

原文如下�Q?/font>
Events are an important way for objects to communicate. They are essential for creating flexible systems. Flash Player 9, for example, has a built-in event dispatching mechanism in the flash.events.EventDispatcher class. All classes that dispatch events inherit from EventDispatcher (e.g., NetStream and Sprite). If you want to define a class that dispatches events, you can extend EventDispatcher, as follows:

package {
import flash.events.EventDispatcher;
public class Example extends EventDispatcher {

}
}

The EventDispatcher class has public methods called addEventListener( ) and removeEventListener( ) that you can call from any instance of an EventDispatcher subclass to register event listeners. EventDispatcher also defines a protected method called dispatchEvent( ), which you can call from within a subclass to dispatch an event. The dispatchEvent( ) method requires at least one parameter as a flash.events.Event object or a subclass of Event.

The Matrix 2007-01-13 15:09 发表评论

The Matrix — Sat, 13 Jan 2007 06:53:00 GMT

Another option is to use implicit getters and setters. Implicit getters and setters are declared as methods, but they look like properties. The syntax for a getter is as follows:

public function get name( ):Datatype {
}

The syntax for a setter is as follows:

public function set name(value:Datatype):void {
}

�q�样在代码中调用counter.count=5时相当于调用了set count(5)�Ҏ��?br />
Counter�c�d��下：
public class Counter {
    private var _count:uint;
    public function Counter( ) {
        _count = 0;
    }
    public function get count( ):uint {
        return _count;
    }
    public function set count(value:uint):void {
        if(value < 100) {
            _count = value;
        }
        else {
            throw Error( );
        }
    }
}

The Matrix 2007-01-13 14:53 发表评论

拥抱Flex2

The Matrix — Mon, 30 Oct 2006 14:50:00 GMT

刚用Open Laszlo做了几个��目�Q�受够了其无法调试，只能通过Debug��调试信息打印出来再慢慢研究错在哪里�Q�受够了�Q?br />试用了Flex2 Builder�Q�备受其可以Debug的鼓舞，同时也受��C��其Chart�l��g的诱惑，觉得�q�是一个比较有前途的RIA发展方向�Q�决定研�I�一番�?img src ="http://www.aygfsteel.com/robbie/aggbug/78172.html" width = "1" height = "1" />

The Matrix 2006-10-30 22:50 发表评论