Hello everyone.

Im developing application for an iPad in Flash Builder 4.6 SDK 4.6.0 AIR 3.1 and i have a serious problem with making smooth animations, even with some simple objects that are not sprites. All i get is 5-10 fps while elements are moving. Normal it sticks to 60 fps.

I was trying to set renderMode to GPU with no luck.

My sample Main.xml looks like this (based on http://coenraets.org/blog/2011/04/scrollable-and-touch-friendly-flex-c harts/ ):

<?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"
                                 creationComplete="completeHandler()" cacheAsBitmap="true" cacheAsBitmapMatrix = "{new Matrix()}" frameRate="35">
  
  <fx:Script>
                    <![CDATA[
                              protected var lastX:Number = 0;
  
                              [Bindable] protected var viewportMax:Number = 10;
  
                              [Bindable]
                              private var frames:int,curTimer:int,prevTimer:int;
  
                              [Bindable]
                              private var framerate:String;
  
                              protected function completeHandler():void
                              {
                                        setInterval(updateFrameRate,1);
  
  // Simulate values
                                        var results:Array = [];
                                        for (var i:int=0; i<50; i++)
                                        {
                                                  results[i] = Math.random() * 100;
                                        }
                                        chart.dataProvider = results;
                              }
  
                              protected function mouseDownHandler(event:MouseEvent):void
                              {
                                        lastX = event.stageX;
                                        systemManager.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
                                        systemManager.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
                              }
  
                              protected function mouseMoveHandler(event:MouseEvent):void
                              {
                                        var delta:Number = (lastX - event.stageX) / chart.width * viewportMax;
                                        if (hAxis.minimum + delta < 0)
                                        {
                                                  hAxis.minimum = 0;
                                                  hAxis.maximum = viewportMax;
                                        }
                                        else if (hAxis.maximum + delta  > chart.dataProvider.length - 1)
                                        {
                                                  hAxis.maximum = chart.dataProvider.length - 1;
                                                  hAxis.minimum = hAxis.maximum - viewportMax;
                                        }
                                        else
                                        {
                                                  hAxis.minimum += delta;
                                                  hAxis.maximum += delta;
                                        }
                                        lastX = event.stageX;
                              }
  
                              protected function mouseUpHandler(event:MouseEvent):void
                              {
                                        systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
                                        systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseUpHandler);
                              }
  
                              private final function updateFrameRate():void
                              {
                                        frames+=1;
  
                                        curTimer=getTimer();
  
                                        if(curTimer-prevTimer>=1000){
  
                                                  framerate = String(Math.round(frames*1000/(curTimer-prevTimer)));
  
                                                  prevTimer=curTimer;
  
                                                  frames=0;
  
                                        }
  
                                        memBox.text="MEM in MB: "+ String(Math.round(1000*System.totalMemory/1048576)/1000);
  
                              }
  
                    ]]>
  </fx:Script>
  
          <mx:ColumnChart id="chart" top="100" left="10" width="400" height="250"
                                                  mouseDown="mouseDownHandler(event)" cacheAsBitmap="true" cacheAsBitmapMatrix = "{new Matrix()}">
  <mx:series>
  <mx:ColumnSeries />
  </mx:series>
  
  <mx:horizontalAxis>
                              <mx:LinearAxis id="hAxis" minimum="0" maximum="{viewportMax}"/>
  </mx:horizontalAxis>
  
  </mx:ColumnChart>
  <s:VGroup>
                    <s:Label text="FPS: {framerate}" />
                    <s:Label text="" id="memBox" />
                    <s:Label text="test" id="storedLang" />
  </s:VGroup>
</s:Application>

i'll be thankful for any help

TIA