How to Load & Unload File SWF at same time - actionscript-3

Question

I'm an as3 newbie, i have one button as name tombol fuctioning to Loading External swf & going to Specific Frame by clicking buttons, this works fine.
import flash.events.MouseEvent;
tombol.addEventListener(MouseEvent.CLICK, tekan2);
function tekan2 (e:MouseEvent):void {
function loadSWF(swfURL){
var myLoader:Loader = new Loader();
var mySWF:URLRequest = new URLRequest(swfURL);
myLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
myLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
myLoader.load(mySWF);
}
function onCompleteHandler(loadEvent:Event){
addChild(loadEvent.currentTarget.content);
loadEvent.currentTarget.content.gotoAndStop(swfFrame);
}
function onProgressHandler(myProgress:ProgressEvent){
var percent:Number = Math.round(myProgress.bytesLoaded/myProgress.bytesTotal*100);
trace(percent+"% loaded");
}
var swfFrame:Number=2;
loadSWF("2.swf");
}
This file save as 1.swf and loading file 2.swf go to frame 2, but file 1.swf still loading, so this script loading 2 file swfs(file 2.swf frame 2 loading with file 1.swf appears). How to file 1.swf can unloading same time when I click the button, so just file 2.swf frame appears on stage.

Answer 1

Generally you can cancel a Loader's load operation by using the command close(). Before cancelling you need to make sure that the Loader actually loads data, otherwise an Error will be thrown:
if (myLoader.contentLoaderInfo.bytesLoaded > 0 &&
myLoader.contentLoaderInfo.bytesLoaded < myLoader.contentLoaderInfo.bytesTotal)
{
myLoader.cancel();
}
EDIT:
You can access the loader of 1.swf by root.loaderInfo.
In your function loadSWF you can add the following code to prevent 1.swf from loading further:
if (root.loaderInfo.loader && root.loaderInfo.bytesLoaded > 0 &&
root.loaderInfo.bytesLoaded < root.loaderInfo.bytesTotal)
{
root.loaderInfo.loader.cancel();
}
However, I'm not completely sure if you really can cancel the loading process of 1.swf (I have never tried out something like this). Architecture-wise, it would make sense to have a third SWF file, which is your Main SWF, and loads your other SWF files (1.swf and 2.swf, ...). In your main SWF you would need to define the Loader as class variable and not as a local variable as you are currently doing. Whenever you load a SWF, check if another loading operation is in progress and cancel it in that case. Ideally, you would place the button tombol in the Main SWF.