Track totalMemory property in a LineChart control in real time : Line Chart « Chart « Flex

1. Flex
2. Chart
3. Line Chart

Track totalMemory property in a LineChart control in real time

       

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    <!-- charts/MemoryGraph.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
    initialize="initTimer()" height="600">
    <fx:Script> 
        import flash.utils.Timer; 
        import flash.events.TimerEvent; 
        import mx.collections.ArrayCollection; 
        [Bindable] 
        public var memoryUsage:ArrayCollection = new ArrayCollection(); 
        public function initTimer():void { 
            /* The first parameter in the Timer constructor 
            is the interval, in milliseconds. The second 
            parameter is how many times to run (0 is 
            infinity). */ 
            var myTimer:Timer = new Timer(1000, 0); 
            /* Add the listener for the timer event. */ 
            myTimer.addEventListener("timer", timerHandler); 
            myTimer.start(); 
        } 
        public function timerHandler(event:TimerEvent):void { 
            var o:Object = new Object(); 
            /* Get the number of milliseconds since Flash 
            Player started. */ 
            o.time = getTimer(); 
            /* Get the total memory Flash Player is using. */ 
            o.memory = flash.system.System.totalMemory; 
            /* Add new object to the ArrayCollection, which 
            is bound to the chart's data provider. */ 
            memoryUsage.addItem(o); 
        } 
      </fx:Script>
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <s:Panel id="p1" title="Memory Usage">
        <s:layout>
            <s:VerticalLayout />
        </s:layout>
        <mx:LineChart id="chart" dataProvider="{memoryUsage}"
            showDataTips="true">
            <mx:horizontalAxis>
                <mx:LinearAxis />
            </mx:horizontalAxis>
            <mx:verticalAxis>
                <mx:LinearAxis minimum="5000000" />
            </mx:verticalAxis>
            <mx:series>
                <fx:Array>
                    <mx:LineSeries yField="memory" />
                </fx:Array>
            </mx:series>
        </mx:LineChart>
    </s:Panel>
</s:Application>

   
    
    
    
    
    
    
  

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