FLEX实践—动态切换应用皮肤

     在同一个Application中动态切换主题，这里采用的是动态引用不同的CSS文件。

      具体步骤如下：

     1）创建CSS文件
   

skyTheme.css
      /* CSS file */
.backgroudSkin
{
   backgroundColor: #89caec;
   fontWeight:bold;
 fontSize:12;
}
.applicationBar
{
    cornerRadius:20; 
    stype:solid;
    fillAlphas:0.42, 0.42;
} 
 treeTheme.css
/* CSS file */
.backgroudSkin
{
   backgroundColor: #bee38a;
   fontWeight:bold;
 fontSize:12;
}
.applicationBar
{
    cornerRadius:5; 
    fillAlphas:0, 0;
}

2）将每一个CSS文件右键选择"Compile CSS to SWF"

   3）创建ThemeTest.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" styleName="backgroudSkin">
 <mx:Script>
   <![CDATA[
     import mx.styles.StyleManager;
     private var style:String;
     
     private function changeTheme(theme:String):void{      //切换CSS文件
      StyleManager.loadStyleDeclarations(theme, true); 
      
     }
   ]]>
 </mx:Script>
 <mx:ArrayCollection id="skinCollection">
      <mx:Object label="SkyTheme" data="theme/skyTheme.swf"/>
      <mx:Object label="TreeTheme" data="theme/treeTheme.swf"/>
    </mx:ArrayCollection>
 <mx:ApplicationControlBar x="10" y="10" width="100%" height="50" styleName="applicationBar">
  <mx:ComboBox id="skinSelector" dataProvider="{skinCollection}" prompt="Choose a theme"
  change="{changeTheme(skinSelector.selectedItem.data);}" width="124"/>
 </mx:ApplicationControlBar>
 <mx:RichTextEditor x="237.5" y="143" title="Title" width="693" height="378">
 </mx:RichTextEditor> 
</mx:Application>

应用效果：

1）切换皮肤前

2）skyTheme.css

3）treeTheme.css