Flex4 自带组件添加的 柱状图、饼状图等图表

1.添加一个最简单的柱状图

<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> 
    <s:layout> 
        <s:BasicLayout/> 
    </s:layout> 
    <fx:Declarations> 
        <!-- 将非可视元素（例如服务、值对象）放在此处 --> 
    </fx:Declarations> 
    <fx:Script> 
        <![CDATA[ 
            [Bindable] 
            private var arr:Array = [{id:1,city:'北京',money:1000,pay:300},{id:2,city:'上海',money:1200,pay:500},{id:3,city:'天津',money:800,pay:200}]; 
              
        ]]> 
    </fx:Script> 
    <mx:BarChart x="110" y="27" id="barchart1" dataProvider="{arr}" showDataTips="true" selectionMode="single"> 
        <mx:series> 
            <mx:BarSeries displayName="收入" xField="money" /> 
            <mx:BarSeries displayName="支出" xField="pay" /> 
        </mx:series> 
        <mx:verticalAxis> 
            <mx:CategoryAxis categoryField="city" /> 
        </mx:verticalAxis> 
    </mx:BarChart> 
    <mx:Legend dataProvider="{barchart1}"/> 
</s:Application>

这个例子使用Array做为数据源，柱状图使用mx:BarChart组件。

2.在上面例子的基础上，添加一个特效，就是图表默认是半透明的，在鼠标移到图标上时渐变为不透明，移开时渐变为半透明

<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> 
    <s:layout> 
        <s:BasicLayout/> 
    </s:layout> 
    <fx:Declarations> 
        <!-- 将非可视元素（例如服务、值对象）放在此处 --> 
    </fx:Declarations> 
    <fx:Script> 
        <![CDATA[ 
            [Bindable] 
            private var arr:Array = [{id:1,city:'北京',money:1000,pay:300},{id:2,city:'上海',money:1200,pay:500},{id:3,city:'天津',money:800,pay:200}]; 
              
        ]]> 
    </fx:Script> 
    <mx:BarChart alpha="0.5" x="110" y="27" id="barchart1" dataProvider="{arr}" showDataTips="true" selectionMode="single"> 
        <mx:series> 
            <mx:BarSeries displayName="收入" xField="money" /> 
            <mx:BarSeries displayName="支出" xField="pay" /> 
        </mx:series> 
        <mx:verticalAxis> 
            <mx:CategoryAxis categoryField="city" /> 
        </mx:verticalAxis> 
        <mx:rollOverEffect> 
            <s:Fade alphaFrom="0.5" alphaTo="1" duration="1000" /> 
        </mx:rollOverEffect> 
        <mx:rollOutEffect> 
            <s:Fade alphaFrom="1" alphaTo="0.5" duration="1000" /> 
        </mx:rollOutEffect> 
    </mx:BarChart> 
    <mx:Legend dataProvider="{barchart1}"/> 
</s:Application>

3.添加一个最简单的饼状图

<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> 
    <s:layout> 
        <s:BasicLayout/> 
    </s:layout> 
    <fx:Script> 
        <![CDATA[ 
            [Bindable] 
            private var arr:Array = [{id:1,city:'北京',money:1000,pay:300},{id:2,city:'上海',money:1200,pay:500},{id:3,city:'天津',money:800,pay:200}]; 
              
        ]]> 
    </fx:Script>   
    <fx:Declarations> 
        <!-- 将非可视元素（例如服务、值对象）放在此处 --> 
    </fx:Declarations> 
    <mx:PieChart x="110" y="51" id="piechart1" dataProvider="{arr}" showAllDataTips="true" selectionMode="single"> 
        <mx:series> 
            <mx:PieSeries displayName="Series 1" field="money" labelPosition="callout" labelField="city" nameField="city" /> 
        </mx:series> 
    </mx:PieChart> 
    <mx:Legend dataProvider="{piechart1}" direction="horizontal" labelPlacement="right"  /> 
</s:Application>

这里需要说明一下mx:PieSeries标签里面的几个属性：labelField和labelPosition分别是指饼图每块显示的内容和位置，nameField是指图例Legend显示的内容.

4.添加一个竖版柱状图

<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> 
    <s:layout> 
        <s:BasicLayout/> 
    </s:layout> 
    <fx:Script> 
        <![CDATA[ 
            [Bindable] 
            private var arr:Array = [{id:1,city:'北京',money:1000,pay:300},{id:2,city:'上海',money:1200,pay:500},{id:3,city:'天津',money:800,pay:200}]; 
              
        ]]> 
    </fx:Script> 
    <fx:Declarations> 
        <!-- 将非可视元素（例如服务、值对象）放在此处 --> 
    </fx:Declarations> 
    <mx:ColumnChart x="100" y="90" id="columnchart1" dataProvider="{arr}" showDataTips="true" selectionMode="single"> 
        <mx:horizontalAxis> 
            <mx:CategoryAxis categoryField="city" /> 
        </mx:horizontalAxis> 
        <mx:series> 
            <mx:ColumnSeries displayName="收入" yField="money"/> 
            <mx:ColumnSeries displayName="支出" yField="pay"/> 
        </mx:series> 
    </mx:ColumnChart> 
    <mx:Legend dataProvider="{columnchart1}"/> 
</s:Application>

跟第一个例子非常相似，只是使用的组件是mx:ColumnChart