Flex Tree组件Demo
这个DEMO可以创建一个全新的树型结构，让我感到奇怪的是，虽然我用XML而不是XMLListCollection/ArrayCollection作为Tree的数据源，但对XML的更新依然会在Tree中反映出来——这似乎和Flex的文档有冲突，下面是引用Flex文档的一段内容：
Raw objects are often not sufficient if you have data that changes, because the data provider component does not receive a notification of any changes to the base object. The component therefore does not get updated until it must be redrawn due to other changes in the application, or if the data provider is reassigned. At that time, it gets the data again from the updated raw object.
Here is the demo(怎么插入swf文件？用embed标签？)
Source code here:
<?xml version="1.0"?>
<!-- dpcontrols/TreeSimple.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="12">
<mx:Script>
<!--[CDATA[
import mx.collections.ArrayCollection;
import mx.collections.XMLListCollection;
[Bindable]
private var list:XML = <list/>;
public function onBtnAddNodeClick(e:Event):void
{
var newNodeName:String = nodeName.text;
if(newNodeName.length == 0)
return;
var currentNode:XML = XML(tree.selectedItem);
if(currentNode == null || currentNode.@type!=1)
return;
var newNode:XML = <node/>;
newNode.@label = newNodeName;
newNode.@type= 1;
newNode.@isBranch = true;
currentNode.appendChild(newNode);
}
public function onBtnAddTopNodeClick(e:Event):void
{
var newNodeName:String = nodeName.text;
if(newNodeName.length == 0)
return;
var newNode:XML = <node/>;
newNode.@label = newNodeName;
newNode.@type= 1;
newNode.@isBranch = true;
list.appendChild(newNode);
}
public function onBtnDelNodeClick(e:Event):void
{
var currentNode:XML = XML(tree.selectedItem);
if(currentNode == null)
return;
var sibling:X
相关文档：
由于Flex只是一种客户端技术其本身并不能直接同数据库交互，在实际的应用开发过程中Flex提供了如URLRequest、HTTPService、RemoteObject、WebService等类以实现同服务器的通讯和数据交互，下面做一些介绍和实例解析:
1、使用URLRequest向服务器发送请求，使用URLLoader接收服务器返回的数据:
& ......
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
creationComplete="initApp()"
backgroundColor="#FFFFFF">
<mx:Canvas id="paper"
......
概述
游戏开发是个很大的课题，该系列只简单讲述如何使用Flex技术平台搭建一个简单的游戏框架，如何设计能优化游戏的CPU占用，内存等，最后制作一个完整的Flex小游戏(提供源码)。
游戏的呈现
方式1：元件方式
这种方式比较适合小型的游戏，游戏元件数量少的情况。当游戏元件数量大时就不合适了：元件会对游戏图形、音� ......
-----------------ex4_01_solution------------------Creating an event and dispatching the event object
<s:Application ...
creationComplete="employeeService.send()">
会触发：
<!-- Declarations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
& ......
