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Flex中如何利用folderOpenIcon, folderClosedIcon和defaultLeafIcon样式改变默认文件夹和子项目图标的例子

2013年11月01日 ⁄ 综合 ⁄ 共 2067字 ⁄ 字号 评论关闭

接下来的例子演示了Flex中如何利用folderOpenIcon, folderClosedIcon和defaultLeafIcon样式,改变默认文件夹和子项目图标。

让我们先来看一下Demo可以右键View Source或点击这里察看源代码):

 

下面是完整代码(或点击这里察看):

Download: main.mxml<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">
 
    <mx:Script>
        <![CDATA[
            [Bindable]
            [Embed("assets/folder.png")]
            private var myFolderClosedIcon:Class;
 
            [Bindable]
            [Embed("assets/folder_page.png")]
            private var myFolderOpenIcon:Class;
 
            [Bindable]
            [Embed("assets/arrow_right.png")]
            private var myDefaultLeafIcon:Class;
        ]]>
    </mx:Script>
 
    <mx:XML id="dp">
        <mlb>
            <league label="American League">
                <division label="East">
                    <team label="Boston" />
                    <team label="New York" />
                    <team label="Toronto" />
                    <team label="Baltimore" />
                    <team label="Tampa Bay" />
                </division>
                <division label="Central">
                    <team label="Cleveland" />
                    <team label="Detroit" />
                    <team label="Minnesota" />
                    <team label="Chicago" />
                    <team label="Kansas City" />
                </division>
                <division label="West">
                    <team label="Los Angeles" />
                    <team label="Seattle" />
                    <team label="Oakland" />
                    <team label="Texas" />
                </division>
            </league>
        </mlb>
    </mx:XML>
 
    <mx:Tree id="TreeProject"
            dataProvider="{dp.league}"
            labelField="@label"
            showRoot="true"
            defaultLeafIcon="{myDefaultLeafIcon}"
            folderOpenIcon="{myFolderOpenIcon}"
            folderClosedIcon="{myFolderClosedIcon}"
            width="320"
            height="240" />
 
</mx:Application>

 

注:除了以上方法,也可以在CSS文件中通过以下代码实现修改:

defaultLeafIcon: Embed('assets/arrow_right.png');

 

本文转自:http://blog.minidx.com/2008/11/24/1647.html

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