本文和大家重點(diǎn)討論一下多樣化Flex餅圖樣式，主要包括顏色漸變，點(diǎn)擊分離和環(huán)形等，相信通過本文的介紹你對Flex餅圖的樣式一定會有新的認(rèn)識。

Flex多樣化餅圖樣式

創(chuàng)建一個簡單的環(huán)形Flex餅圖，通過PieChart的innerRadius屬性進(jìn)行設(shè)置實(shí)現(xiàn)環(huán)形效果：

Xml代碼
 

<?xmlversionxmlversion="1.0"encoding="utf-8"?> 
<mx:Applicationxmlns:mxmx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"layout="absolute"> 
<mx:Script> 
<![CDATA[  
importmx.collections.ArrayCollection;  
importmx.charts.HitData;  
[Bindable]  
publicvarchengjiPie:ArrayCollection=newArrayCollection([  
{classs:"60分以下",num:5},  
{classs:"60~70分",num:4},  
{classs:"70~80分",num:5},  
{classs:"80~90分",num:4},  
{classs:"90分以上",num:3}]);  
 
privatefunctiondisplayGold(data:Object,field:String,index:Number,percentValue:Number):String{  
vartemp:String=(""+percentValue).substr(0,6);  
returndata.classs+":"+'\n'+temp+"%";  
}  
 
]]> 
 
</mx:Script> 
 
<mx:SolidColoridmx:SolidColorid="sc1"color="0xE46899"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc2"color="0xAAD71A"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc3"color="0xFFE30E"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc4"color="0xFDB500"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc5"color="0x4CD0EF"alpha=".6"/> 
 
 
<mx:Strokeidmx:Strokeid="callouts"weight="2"color="0x999999"alpha=".8"caps="square"/> 
<mx:Strokeidmx:Strokeid="radial"weight="1"color="0xFFFFCC"alpha=".3"/> 
<mx:Strokeidmx:Strokeid="pieborder"color="0x000000"weight="2"alpha=".5"/> 
 
 
<mx:Panelheightmx:Panelheight="100%"width="100%"layout="absolute"fontSize="12"> 
 
<mx:PieChartidmx:PieChartid="chart"showDataTips="true"width="100%"height="100%"  
dataProvider="{chengjiPie}"innerRadius=".3"horizontalCenter="0"verticalCenter="0"> 
 
<mx:series> 
<mx:Array> 
<mx:PieSeriesnameFieldmx:PieSeriesnameField="classs"labelPosition="callout"field="num" 
labelFunction="displayGold"> 
 
</mx:PieSeries> 
</mx:Array> 
</mx:series> 
 
</mx:PieChart> 
<mx:LegenddataProvidermx:LegenddataProvider="{chart}"right="0"bottom="0"/> 
</mx:Panel> 
 
</mx:Application> 
 
<?xmlversionxmlversion="1.0"encoding="utf-8"?> 
<mx:Applicationxmlns:mxmx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"layout="absolute"> 
<mx:Script> 
<![CDATA[  
importmx.collections.ArrayCollection;  
importmx.charts.HitData;  
[Bindable]  
publicvarchengjiPie:ArrayCollection=newArrayCollection([  
{classs:"60分以下",num:5},  
{classs:"60~70分",num:4},  
{classs:"70~80分",num:5},  
{classs:"80~90分",num:4},  
{classs:"90分以上",num:3}]);  
 
privatefunctiondisplayGold(data:Object,field:String,index:Number,percentValue:Number):String{  
vartemp:String=(""+percentValue).substr(0,6);  
returndata.classs+":"+'\n'+temp+"%";  
}  
 
]]> 
 
</mx:Script> 
 
<mx:SolidColoridmx:SolidColorid="sc1"color="0xE46899"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc2"color="0xAAD71A"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc3"color="0xFFE30E"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc4"color="0xFDB500"alpha=".6"/> 
<mx:SolidColoridmx:SolidColorid="sc5"color="0x4CD0EF"alpha=".6"/> 
 
 
<mx:Strokeidmx:Strokeid="callouts"weight="2"color="0x999999"alpha=".8"caps="square"/> 
<mx:Strokeidmx:Strokeid="radial"weight="1"color="0xFFFFCC"alpha=".3"/> 
<mx:Strokeidmx:Strokeid="pieborder"color="0x000000"weight="2"alpha=".5"/> 
 
 
<mx:Panelheightmx:Panelheight="100%"width="100%"layout="absolute"fontSize="12"> 
 
<mx:PieChartidmx:PieChartid="chart"showDataTips="true"width="100%"height="100%"  
dataProvider="{chengjiPie}"innerRadius=".3"horizontalCenter="0"verticalCenter="0"> 
 
<mx:series> 
<mx:Array> 
<mx:PieSeriesnameFieldmx:PieSeriesnameField="classs"labelPosition="callout"field="num" 
labelFunction="displayGold"> 
 
 </mx:PieSeries> 
</mx:Array> 
</mx:series> 
 
</mx:PieChart> 
<mx:LegenddataProvidermx:LegenddataProvider="{chart}"right="0"bottom="0"/> 
</mx:Panel> 
 
</mx:Application> 

◆在這個簡單Flex餅圖的基礎(chǔ)上進(jìn)行一些改動就可以實(shí)現(xiàn)多樣化：

1添加Flex餅圖上顏色塊的漸變效果，用到RadialGradient標(biāo)簽.

2實(shí)現(xiàn)鼠標(biāo)點(diǎn)擊，該塊分離的效果，對PieSeries進(jìn)行相關(guān)屬性設(shè)置，explodeRadius:分離程度。PerWedgeExplodeRadius:數(shù)組規(guī)定出每一塊的分離值。

3添加動態(tài)效果，點(diǎn)擊時的彈動變化。showDataEffect標(biāo)簽處添加Elastic.easeOut震動效果。

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