iOS app image Assets problem

Hello,

I’m trying to develop very simple image portfolio app for iOS using AS3.
I have difficulties to understand how to include image assets for my app.

Due to various resolutions of the devices, I have various files for every image, for example:
image_480.png
image_960.png
image_1024.png
image_1136.png
image_2048.png

Now, depending on the detected device resolution I want app to load appropriate image (“image_” + version + “.png”).
The problem is I don’t know how to include all the images within my app to access them.

My code:


package {        
    import flash.display.Bitmap;    
    import flash.display.Loader;
    import flash.display.MovieClip;
    import flash.events.Event;
    import flash.net.URLRequest;

    public class zeeto extends MovieClip {
        private var image: Bitmap = new Bitmap;
        private var loader: Loader;
        private var stageW: int;
        private var imageW: int;

                         public function zeeto() {
            addEventListener(Event.ADDED_TO_STAGE, init);
        }                

        private function init(e:Event):void {
           removeEventListener(Event.ADDED_TO_STAGE, init);

           // Stage test
           stageW = stage.stageWidth;

                                   if (stageW > 1136)    imageW = 2048;
                                   else if (stageW > 1024) imageW = 1136;
                                   else if (stageW > 960) imageW = 1024;
           else if (stageW > 480) imageW = 960;
           else imageW = 480;

                                   image.smoothing = true;

           loader = new Loader();
           loader.contentLoaderInfo.addEventListener(Event.COMPLETE, displayImage);
           loader.load(new URLRequest("app:/Assets/image_" + imageW + ".png"));
        }

        private function displayImage(e:Event):void {
           image = loader.content as Bitmap;
           image.x = 0 - ((image.width - stage.stageWidth) / 2);
           image.y = 0 - ((image.height - stage.stageHeight) / 2);
           addChild(image);
        }
                 }
}

Structure of the project files:
zeeto.ipa
zeeto.fla
com/zeeto/zeeto.as

Where do I put the “Assets” folder and how to tell the compiler to include it’s content within zeeto.ipa file?

Thank you