Convert ios photo(mediapromise) into byteArray ?

Question

hello
I'm trying to convert ios photo into bytearray. Because I want send the photo from iphone to AIR in laptop.
I've found some tutorial looks great and should work:
http://forums.adobe.com/post!input.jspa?container=4434&containerType=14
the method is to use "mediaPromise.open()" and get the byte data.
but I always got an error blow:
ArgumentError: Error #1063: Argument count mismatch on Main/selectHandler(). Expected 0, got 1.
dose anyone bump into the same error as me?
my code is below:
package
          import flash.display.Sprite;
          import flash.events.Event;
          import flash.events.IEventDispatcher;
          import flash.events.MediaEvent;
          import flash.events.MouseEvent;
          import flash.media.CameraRoll;
          import flash.media.MediaPromise;
          import flash.utils.ByteArray;
          import flash.utils.IDataInput;
          public class Main extends Sprite
                    public var dataSource:IDataInput;
                    public var cameraRoll:CameraRoll=new CameraRoll();
                    public var but_select:Sprite=new Sprite()
                    public function Main()
                              super();
                              but_select.graphics.beginFill(0xFF0000)
                              but_select.graphics.drawCircle(stage.stageWidth / 2, stage.stageHeight / 2, 50)
                              addChild(but_select)
                              but_select.addEventListener(MouseEvent.CLICK, selectHandler)
                    public function selectHandler():void
                              if (CameraRoll.supportsBrowseForImage)
                                        cameraRoll.addEventListener(MediaEvent.SELECT, imageSelected);
                                        cameraRoll.browseForImage();
                               else
                                trace("Image browsing is not supported on this device.");
                    private function imageSelected(event:MediaEvent):void
                            trace("Media selected...");
                              var imagePromise:MediaPromise=event.data;
                              dataSource=imagePromise.open();
                              if (imagePromise.isAsync)
                              trace("Asynchronous media promise.");
                                        var eventSource:IEventDispatcher=dataSource as IEventDispatcher;
                                        eventSource.addEventListener(Event.COMPLETE, onMediaLoaded);
                               else
                                          trace("Synchronous media promise.");
                                        readMediaData();
                    private function onMediaLoaded(event:Event):void
                              trace("Media load complete");
                              readMediaData();
                    private function readMediaData():void
                              var imageBytes:ByteArray=new ByteArray();
                              dataSource.readBytes(imageBytes);
                              trace("imageBytes= " + imageBytes)

Answer 1

it's wierd but the code below is working:
package
          import flash.desktop.NativeApplication;
          import flash.display.Loader;
          import flash.display.Sprite;
          import flash.display.StageAlign;
          import flash.display.StageScaleMode;
          import flash.display.graphics;
          import flash.events.ErrorEvent;
          import flash.events.Event;
          import flash.events.IEventDispatcher;
          import flash.events.IOErrorEvent;
          import flash.events.MediaEvent;
          import flash.events.MouseEvent;
          import flash.media.CameraRoll;
          import flash.media.MediaPromise;
          import flash.utils.ByteArray;
          import flash.utils.IDataInput;
          public class Main extends Sprite
                    private var cameraRoll:CameraRoll = new CameraRoll();
                    public var ball:Sprite=new Sprite()
                    private var dataSource:IDataInput;
                    private var eventSource:IEventDispatcher;
                    public function Main()
                              this.stage.align = StageAlign.TOP_LEFT;
                              this.stage.scaleMode = StageScaleMode.NO_SCALE;
                              ball.graphics.beginFill(0xFF0000)
                              ball.graphics.drawCircle(stage.stageWidth/2,stage.stageHeight/2,50)
                              addChild(ball)
                              ball.addEventListener(MouseEvent.CLICK,selectHander)
                    private function selectHander(e:MouseEvent):void
                              if( CameraRoll.supportsBrowseForImage )
  trace( "Initializing app..." );
                                        cameraRoll.addEventListener( MediaEvent.SELECT, imageSelected );
                                        cameraRoll.addEventListener( Event.CANCEL, browseCanceled );
                                        cameraRoll.addEventListener( ErrorEvent.ERROR, mediaError );
                                        cameraRoll.browseForImage();
  else
  trace( "Image browse is not supported.");
                    private function imageSelected( event:MediaEvent ):void
  trace( "Media selected..." );
                              var imagePromise:MediaPromise = event.data;
                              dataSource = imagePromise.open();
                              if( imagePromise.isAsync )
  trace( "Asynchronous media promise." );
                                        eventSource = dataSource as IEventDispatcher;
                                        trace( eventSource );
                                        eventSource.addEventListener( Event.COMPLETE, onDataComplete );               
  else
  trace( "Synchronous media promise." );
                                        readMediaData();
                    private function onDataComplete( event:Event ):void
  trace("Data load complete");
                              readMediaData();
                    private function browseCanceled( event:Event ):void
  trace( "Media select canceled." );
                              NativeApplication.nativeApplication.exit();
                    private function readMediaData():void
  trace("Main.readMediaData()");
                              var imageBytes:ByteArray = new ByteArray();
                              dataSource.readBytes( imageBytes );
                              trace("imageBytes= "+imageBytes)
  //the rest of this is just testing what we actually read
//                              trace(imageBytes.length);
//                              imageBytes.position = 0;
//                              var string:String = imageBytes.readUTFBytes( 300 );
//                              trace( string );
                    private function mediaError( error:ErrorEvent ):void
                              trace( "Error:" + error.text );
                              NativeApplication.nativeApplication.exit();