Flex Gumbo中如何自定义HSlider数据Tip样式的例子

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原文链接：http://www.cnblogs.com/TsengYuen/archive/2010/11/13/1876760.html

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#大数据

本文介绍如何在FlexGumbo中使用skinClass属性来自定义HSlider的数据Tip样式。通过创建CustomHSliderSkin皮肤类，并定义其中的dataTip组件来实现外观定制。此方法适用于希望进一步个性化UI组件视觉效果的开发者。

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接下来的Flex Gumbo中如何通过skinClass样式，自定义HSlider数据Tip样式。

下面是main.mxml：<?xml version="1.0" encoding="utf-8"?> 
<s:Application name="Spark_HSlider_skinClass_dataTip_test" 
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/halo"> 
  
    <s:HSlider id="slider" 
            skinClass="skins.CustomHSliderSkin" 
            horizontalCenter="0" 
            verticalCenter="0" /> 
  
</s:Application>

下面是Skin类Skins/CustomHSliderSkin.mxml的代码：<?xml version="1.0" encoding="utf-8"?> 
<s:SparkSkin name="CustomHSliderSkin" 
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        minHeight="11" minWidth="100" 
        alpha.disabled="0.5"> 
    <s:states> 
        <s:State name="normal" /> 
        <s:State name="disabled" /> 
    </s:states> 
  
    <fx:Metadata> 
        <![CDATA[ 
            [HostComponent("spark.components.HSlider")] 
        ]]> 
    </fx:Metadata> 
  
    <fx:Script> 
        /* Define the skin elements that should not be colorized. 
           For slider, the skin itself is colorized but the individual parts are not. */ 
        static private const exclusions:Array = ["track", "thumb"]; 
  
        override public function get colorizeExclusions():Array {return exclusions;} 
    </fx:Script> 
  
    <fx:Declarations> 
    <!--- Defines the appearance of the the Slider's DataTip. To customize the DataTip's appearance, create a custom HSliderSkin class. --> 
        <fx:Component id="dataTip"> 
           <s:MXMLComponent minHeight="24" minWidth="40" y="-34"> 
              <s:Rect top="0" left="0" right="0" bottom="0"> 
                    <s:fill> 
                        <s:SolidColor color="haloBlue" alpha="0.9"/> 
                    </s:fill> 
                    <s:filters> 
                        <s:DropShadowFilter angle="90" color="0x999999" distance="3"/> 
                    </s:filters> 
                </s:Rect> 
                <s:SimpleText id="labelElement" text="{data}" 
                         horizontalCenter="0" verticalCenter="1" 
                         left="5" right="5" top="5" bottom="5" 
                         textAlign="center" verticalAlign="middle" 
                         fontWeight="normal" color="black" fontSize="11" /> 
            </s:MXMLComponent> 
       </fx:Component> 
    </fx:Declarations> 
  
    <!--- Defines the skin class for the HSliderSkin's track. The default skin class is HSliderTrackSkin. --> 
    <s:Button id="track" left="0" right="0" top="0" bottom="0" 
              skinClass="spark.skins.default.HSliderTrackSkin" /> 
    <!--- Defines the skin class for the HSliderSkin's thumb. The default skin class is HSliderThumbSkin. --> 
    <s:Button id="thumb" top="0" bottom="0" width="11" height="11" 
              skinClass="spark.skins.default.HSliderThumbSkin" /> 
  
</s:SparkSkin>