Dynamic chart with Timer

          

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
  initialize="initTimer()">
  <mx:Script>
    import mx.collections.ArrayCollection;
    import flash.utils.Timer;
    import flash.events.TimerEvent;


    [Bindable]
    public var memoryRecording:ArrayCollection = new ArrayCollection();
    public function initTimer():void {

        var myTimer:Timer = new Timer(1000, 0);
        myTimer.addEventListener("timer", timerHandler);
        myTimer.start();
   }

   public function timerHandler(event:TimerEvent):void {
       memoryRecording.addItem({totalMemory:flash.system.System.totalMemory,timePoint:getTimer()});
   }
  </mx:Script>

  <mx:Panel title="Line Chart">
    <mx:LineChart dataProvider="{memoryRecording}" showDataTips="true">
      <mx:series>
        <mx:LineSeries yField="totalMemory" xField="timePoint"
          displayName="Memory Usage" />
      </mx:series>
    </mx:LineChart>
  </mx:Panel>
</mx:Application>

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Dynamic chart with Timer : Line Chart « Chart « Flex

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