Unload an SWF?

I'm trying to unload an SWF that has been loaded by the following code, but can't get it to work.
This code loads the SWF and works fine:
btn1.onRelease=function(){
myContainer.loadMovie("LibraryBooks.swf");
gotoAndStop("35b");
This is the code I'm trying, which doesn't work (the gotoAndStop works but the unload SWF doesn't work)
resetbtn.onRelease=function(){
myContainer.unloadMovie("LibraryBooks.swf");
gotoAndStop("35");
thx-

unloadMovie() takes no parameters:
btn1.onRelease=function(){
myContainer.loadMovie("LibraryBooks.swf");
gotoAndStop("35b");
resetbtn.onRelease=function(){
myContainer.unloadMovie();
gotoAndStop("35");

Similar Messages

Remove / unload external swf file(s) from the main flash file and load a new swf file and garbage collection from memory.

I can't seem to remove / unload the external swf files e.g when the carousel.swf (portfolio) is displayed and I press the about button the about content is overlapping the carousel (portfolio) . How can I remove / unload an external swf file from the main flash file and load a new swf file, while at the same time removing garbage collection from memory?
This is the error message(s) I am receiving: "TypeError: Error #2007: Parameter child must be non-null.
at flash.display::DisplayObjectContainer/removeChild()
at index_fla::MainTimeline/Down3()"
import nl.demonsters.debugger.MonsterDebugger;
var d:MonsterDebugger=new MonsterDebugger(this);
stage.scaleMode=StageScaleMode.NO_SCALE;
stage.align=StageAlign.TOP_LEFT;
stage.addEventListener(Event.RESIZE, resizeHandler);
// loader is the loader for portfolio page swf
var loader:Loader;
var loader2:Loader;
var loader3:Loader;
var loader1:Loader;
// resize content
function resizeHandler(event:Event):void {
    // resizes portfolio page to center
loader.x = (stage.stageWidth - loader.width) * .5;
loader.y = (stage.stageHeight - loader.height) * .5;
// resizes about page to center
loader3.x = (stage.stageWidth - 482) * .5 - 260;
loader3.y = (stage.stageHeight - 492) * .5 - 140;
/*loader2.x = (stage.stageWidth - 658.65) * .5;
loader2.y = (stage.stageHeight - 551.45) * .5;*/
addEventListener(Event.ENTER_FRAME, onEnterFrame,false, 0, true);
function onEnterFrame(ev:Event):void {
var requesterb:URLRequest=new URLRequest("carouselLoader.swf");
loader = null;
loader = new Loader();
loader.name ="carousel1"
//adds gallery.swf to stage at begining of movie
loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
function ioError(event:IOErrorEvent):void {
trace(event);
try {
loader.load(requesterb);
} catch (error:SecurityError) {
trace(error);
addChild(loader);
loader.x = (stage.stageWidth - 739) * .5;
loader.y = (stage.stageHeight - 500) * .5;
// stop gallery.swf from duplication over and over again on enter frame
removeEventListener(Event.ENTER_FRAME, onEnterFrame);
//PORTFOLIO BUTTON
//adds eventlistner so that gallery.swf can be loaded
MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
function Down(event:MouseEvent):void {
// re adds listener for contact.swf and about.swf
MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
//unloads gallery.swf from enter frame if users presses portfolio button in nav
var requester:URLRequest=new URLRequest("carouselLoader.swf");
    loader = null;
loader = new Loader();
loader.name ="carousel"
loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
function ioError(event:IOErrorEvent):void {
trace(event);
try {
loader.load(requester);
} catch (error:SecurityError) {
trace(error);
addChild(loader);
loader.x = (stage.stageWidth - 739) * .5;
loader.y = (stage.stageHeight - 500) * .5;
removeChild( getChildByName("about") );
removeChild( getChildByName("carousel1") );
// remove eventlistner and prevents duplication of gallery.swf
MovieClip(root).nav.portfolio.removeEventListener(MouseEvent.MOUSE_DOWN, Down);
//INFORMATION BUTTON
//adds eventlistner so that info.swf can be loaded
MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
function Down1(event:MouseEvent):void {
//this re-adds the EventListener for portfolio so that end user can view again if they wish.
MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
var requester:URLRequest=new URLRequest("contactLoader.swf");
loader2 = null;
loader2 = new Loader();
loader2.name ="contact"
loader2.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
function ioError(event:IOErrorEvent):void {
trace(event);
try {
loader2.load(requester);
} catch (error:SecurityError) {
trace(error);
addChild(loader2);
loader2.x = (stage.stageWidth - 658.65) * .5;
loader2.y = (stage.stageHeight - 551.45) * .5;
// remove eventlistner and prevents duplication of info.swf
MovieClip(root).nav.info.removeEventListener(MouseEvent.MOUSE_DOWN, Down1);
//ABOUT BUTTON
//adds eventlistner so that info.swf can be loaded
MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
function Down3(event:MouseEvent):void {
//this re-adds the EventListener for portfolio so that end user can view again if they wish.
MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
var requester:URLRequest=new URLRequest("aboutLoader.swf");
loader3 = null;
loader3 = new Loader();
loader3.name ="about"
loader3.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
function ioError(event:IOErrorEvent):void {
trace(event);
try {
loader3.load(requester);
} catch (error:SecurityError) {
trace(error);
addChild(loader3);
loader3.x = (stage.stageWidth - 482) * .5 - 260;
loader3.y = (stage.stageHeight - 492) * .5 - 140;
removeChild( getChildByName("carousel") );
removeChild( getChildByName("carousel1") );
// remove eventlistner and prevents duplication of info.swf
MovieClip(root).nav.about.removeEventListener(MouseEvent.MOUSE_DOWN, Down3);
stop();

Andrei1,
Thank you for the helpful advice. I made the changes as you suggested but I am receiving a #1009 error message even though my site is working the way I wan it to work. I would still like to fix the errors so that my site runs and error free. This is the error I am receiving:
"TypeError: Error #1009: Cannot access a property or method of a null object reference."
I'm sure this is not the best method to unload loaders and I am guessing this is why I am receiving the following error message.
     loader.unload();
     loader2.unload();
     loader3.unload();
I also tried creating a function to unload the loader but received the same error message and my portfolio swf was not showing at all.
     function killLoad():void{
     try { loader.close(); loader2.close; loader3.close;} catch (e:*) {}
     loader.unload(); loader2.unload(); loader3.unload();
I have a question regarding suggestion you made to set Mouse Event to "null". What does this do setting the MouseEvent do exactly? Also, since I've set the MouseEvent to null do I also have to set the loader to null? e.g.
---- Here is my updated code ----
// variable for external loaders
var loader:Loader;
var loader1:Loader;
var loader2:Loader;
var loader3:Loader;
// makes borders resize with browser size
function resizeHandler(event:Event):void {
// resizes portfolio page to center
     loader.x = (stage.stageWidth - loader.width) * .5;
     loader.y = (stage.stageHeight - loader.height) * .5;
// resizes about page to center
     loader3.x = (stage.stageWidth - 482) * .5 - 260;
     loader3.y = (stage.stageHeight - 492) * .5 - 140;
//adds gallery.swf to stage at begining of moviie
     Down();
//PORTFOLIO BUTTON
//adds eventlistner so that gallery.swf can be loaded
     MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
function Down(event:MouseEvent = null):void {
// re adds listener for contact.swf and about.swf
     MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
     MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
//unloads gallery.swf from enter frame if users presses portfolio button in nav
     var requester:URLRequest=new URLRequest("carouselLoader.swf");
     loader = new Loader();
     loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
     function ioError(event:IOErrorEvent):void {
     trace(event);
     try {
     loader.load(requester);
     } catch (error:SecurityError) {
     trace(error);
     this.addChild(loader);
     loader.x = (stage.stageWidth - 739) * .5;
     loader.y = (stage.stageHeight - 500) * .5;
// sure this is not the best way to do this - but it is unload external swfs
     loader.unload();
     loader2.unload();
     loader3.unload();
// remove eventlistner and prevents duplication of gallery.swf
     MovieClip(root).nav.portfolio.removeEventListener(MouseEvent.MOUSE_DOWN, Down);
//INFORMATION BUTTON
     //adds eventlistner so that info.swf can be loaded
     MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
     function Down1(event:MouseEvent = null):void {
     //this re-adds the EventListener for portfolio so that end user can view again if they wish.
     MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
     MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
     var requester:URLRequest=new URLRequest("contactLoader.swf");
     loader2 = null;
     loader2 = new Loader();
     loader2.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
     function ioError(event:IOErrorEvent):void {
     trace(event);
     try {
     loader2.load(requester);
}      catch (error:SecurityError) {
     trace(error);
     addChild(loader2);
     loader2.x = (stage.stageWidth - 658.65) * .5;
     loader2.y = (stage.stageHeight - 551.45) * .5;
loader.unload();
loader2.unload();
loader3.unload();
     // remove eventlistner and prevents duplication of info.swf
     MovieClip(root).nav.info.removeEventListener(MouseEvent.MOUSE_DOWN, Down1);
//ABOUT BUTTON
     //adds eventlistner so that info.swf can be loaded
     MovieClip(root).nav.about.addEventListener(MouseEvent.MOUSE_DOWN, Down3, false, 0, true);
     function Down3(event:MouseEvent = null):void {
     //this re-adds the EventListener for portfolio so that end user can view again if they wish.
     MovieClip(root).nav.portfolio.addEventListener(MouseEvent.MOUSE_DOWN, Down, false, 0, true);
     MovieClip(root).nav.info.addEventListener(MouseEvent.MOUSE_DOWN, Down1, false, 0, true);
     var requester:URLRequest=new URLRequest("aboutLoader.swf");
     loader3 = null;
     loader3 = new Loader();
     loader3.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
     function ioError(event:IOErrorEvent):void {
     trace(event);
     try {
     loader3.load(requester);
}      catch (error:SecurityError) {
     trace(error);
     addChild(loader3);
     loader3.x = (stage.stageWidth - 482) * .5 - 260;
     loader3.y = (stage.stageHeight - 492) * .5 - 140;
     loader.unload();
     loader2.unload();
     loader3.unload();
     // remove eventlistner and prevents duplication of info.swf
     MovieClip(root).nav.about.removeEventListener(MouseEvent.MOUSE_DOWN, Down3);
     stop();

Need help unloading an .swf

I'm using flash CS5, AS3
I'm making a huge module that has a central "Hub" (table of contents) which contains all links to the other slides which are individual .swf files.
The issue is, from the main hub, i click on the link to open a swf and it starts to play. if the button that returns you to the Hub is pushed before the whole .swf plays through, the symbols and tweens from the swf that was just unloaded, still show up on top of the Hub and keep playing. anyone know how i can fix this?
code in frame 1 of all swfs:
this.btn_hub.addEventListener(MouseEvent.CLICK, SWFhub);
var fl_Loader:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad:Boolean = true;
function SWFhub(event:MouseEvent):void
        fl_Loader.unload();
        removeChild(fl_Loader);
        fl_Loader = null;
        fl_Loader = new Loader();
        fl_Loader.load(new URLRequest("Slide HUB.swf"));
        addChild(fl_Loader);
    SoundMixer.stopAll();
any help would be appreciated!
-= Sondax =-

a few issues... for the code that goes on the loaded swf, the button doesn't return you back to the hub. i changed the first line to "this.btn_hub.addEventListener(MouseEvent.CLICK,unloadF);", but still doesn't work. (btn_hub is name of button that returns you to the hub)
for the hub, when i copy and paste the code to add buttons for the other slides, i get errors of duplicate functions:
Scene 1, Layer 'actions', Frame 1, Line 29
1151: A conflict exists with definition fl_Loader in namespace internal.
Scene 1, Layer 'actions', Frame 1, Line 41
1021: Duplicate function definition.
Scene 1, Layer 'actions', Frame 1, Line 45
1021: Duplicate function definition.
line 29 = var fl_Loader:Loader=new Loader();
line 41 = function completeF(e:Event):void{
line 45 = function unloadF(e:Event):void{
the full code in the hub (just 2 buttons added so far):
stop();
this.btn_62.addEventListener(MouseEvent.CLICK, SWF62);
var fl_Loader:Loader=new Loader();
fl_Loader.contentLoaderInfo.addEventListener(Event.COMPLETE,completeF) ;
function SWF62(event:MouseEvent):void
if(fl_Loader.content){
unloadF(event);
        fl_Loader.load(new URLRequest("Slide6_2.swf"));
        addChild(fl_Loader);
function completeF(e:Event):void{
MovieClip(fl_Loader.content).addEventListener("unload",unloadF);
function unloadF(e:Event):void{
MovieClip(fl_Loader.content).removeEventListener("unload",unloadF);
fl_Loader.unloadAndStop();
this.btn_11.addEventListener(MouseEvent.CLICK, SWF11);
var fl_Loader:Loader=new Loader();
fl_Loader.contentLoaderInfo.addEventListener(Event.COMPLETE,completeF) ;
function SWF11(event:MouseEvent):void
if(fl_Loader.content){
unloadF(event);
        fl_Loader.load(new URLRequest("Slide1_1.swf"));
        addChild(fl_Loader);
function completeF(e:Event):void{
MovieClip(fl_Loader.content).addEventListener("unload",unloadF);
function unloadF(e:Event):void{
MovieClip(fl_Loader.content).removeEventListener("unload",unloadF);
fl_Loader.unloadAndStop();

AS3 Unloading external SWF piling up problem

I have two buttons on main SWF what loads and Unload two external SWFs back and forth.
Also one timer function is calling external Screen saver SWF and unload the existing one when no interaction found.
I am using unloadAndStop() function to unload the external SWFs.
But after loading and unloading external SWFs, I am facing piling up or stack overflow problem.
Any help will be highly appreciated.
Thanks
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.media.Video;
import flash.display.MovieClip;
import caurina.transitions.*;
import flash.utils.Timer;
import flash.events.*;
var myLoader_Map_1:Loader = new Loader();
var myLoader_Map_2:Loader = new Loader();
var myLoader_Screen_Saver:Loader = new Loader();
var Ss:Boolean = false;
var Maps:Boolean = true;
//--------------------Screen Saver---------------------------------
ScreenSaver();
function ScreenSaver():void{
var url:URLRequest = new URLRequest("screensaver.swf");
myLoader_Screen_Saver.load(url);
addChild(myLoader_Screen_Saver);
setChildIndex(myLoader_Screen_Saver, 1);
Maps = false;
Ss = true;
function ScreenSaver_Unload():void{
myLoader_Screen_Saver.unloadAndStop();
//--------------------Map Buttons---------------------------------
function MPstart():void{
Tweener.addTween(MC_Maps_Btns,{alpha:1, x:778.25, y:1070.65, time:1, delay:1, transition:"easeOutCubic"});
setChildIndex(MC_Maps_Btns, 2);
MC_Maps_Btns.Btn_Map_1.visible = true;
MC_Maps_Btns.Btn_Map_2.visible = true;
function MPclose():void{
Tweener.addTween(MC_Maps_Btns,{alpha:0, x:778.25, y:1179.85, time:1, transition:"easeOutCubic"});
//--------------------Map 1 ---------------------------------
MC_Maps_Btns.Btn_Map_1.addEventListener(MouseEvent.CLICK,OpenMap1);
function OpenMap1(e:MouseEvent):void{
var url:URLRequest = new URLRequest("Map_1.swf");
myLoader_Map_1.load(url);
myLoader_Map_1.alpha = 1;
addChild(myLoader_Map_1);
setChildIndex(myLoader_Map_1, 2);
myLoader_Map_2.unloadAndStop();
ScreenSaver_Unload();
Maps = true;
Ss = false;
MC_Maps_Btns.Btn_Map_1.visible = false;
MC_Maps_Btns.Btn_Map_2.visible = true;
//--------------------Map 1 ---------------------------------
MC_Maps_Btns.Btn_Map_2.addEventListener(MouseEvent.CLICK,OpenMap2);
function OpenMap2(e:MouseEvent):void {
var url:URLRequest = new URLRequest("Map_2.swf");
myLoader_Map_2.load(url);
myLoader_Map_2.alpha = 1;
addChild(myLoader_Map_2);
setChildIndex(myLoader_Map_2, 2);
myLoader_Map_1.unloadAndStop();
ScreenSaver_Unload();
Maps = true;
Ss = false;
MC_Maps_Btns.Btn_Map_2.visible = false;
MC_Maps_Btns.Btn_Map_1.visible = true;
//--------------------Timer ---------------------------------
var inactiveTime:int = 10000;
var t:Timer = new Timer(inactiveTime);
stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown1);
t.addEventListener(TimerEvent.TIMER, onTimer);
t.start();
function onMouseDown1(e:MouseEvent):void {
t.reset();
t.start();
trace("Interaction detected");
function onTimer(e:TimerEvent):void {
handleInactivity();
function handleInactivity():void {
trace('You\'re inactive.');
if (Maps == true){
myLoader_Map_1.unloadAndStop();
myLoader_Map_2.unloadAndStop();
else{
trace("No Maps");
if (Ss == false ){
ScreenSaver();
MPclose();
else{
trace("ScreenSaver already loaded");

This is how I applied
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.media.Video;
import flash.display.MovieClip;
import caurina.transitions.*;
import flash.utils.Timer;
import flash.events.*;
var myLoader_Map_1:Loader = new Loader();
var myLoader_Map_2:Loader = new Loader();
var myLoader_Screen_Saver:Loader = new Loader();
var Ss:Boolean = false;
var Maps:Boolean = true;
//--------------------Screen Saver---------------------------------
function unloadAllF():void{
if(myLoader_Screen_Saver.content){
myLoader_Screen_Saver.unloadAndStop();
trace("ss unloaded");
if(myLoader_Map_1.content){
myLoader_Map_1.unloadAndStop();
trace("map_1 unloaded");
if(myLoader_Map_2.content){
myLoader_Map_2.unloadAndStop();
trace("map_2 unloaded");
//etc
ScreenSaver();
function ScreenSaver():void{
var url_ss:URLRequest = new URLRequest("screensaver.swf");
unloadAllF();
myLoader_Screen_Saver.load(url_ss);
addChild(myLoader_Screen_Saver);
setChildIndex(myLoader_Screen_Saver, 1);
Maps = false;
Ss = true;
function ScreenSaver_Unload():void{
myLoader_Screen_Saver.unloadAndStop();
//--------------------Map Buttons---------------------------------
function MPstart():void{
Tweener.addTween(MC_Maps_Btns,{alpha:1, x:778.25, y:1070.65, time:1, delay:1, transition:"easeOutCubic"});
setChildIndex(MC_Maps_Btns, 2);
MC_Maps_Btns.Btn_Map_1.visible = true;
MC_Maps_Btns.Btn_Map_2.visible = true;
function MPclose():void{
Tweener.addTween(MC_Maps_Btns,{alpha:0, x:778.25, y:1179.85, time:1, transition:"easeOutCubic"});
//--------------------Map 1 ---------------------------------
MC_Maps_Btns.Btn_Map_1.addEventListener(MouseEvent.CLICK,OpenMap1);
function OpenMap1(e:MouseEvent):void{
var url_map_1:URLRequest = new URLRequest("Map_1.swf");
unloadAllF();
myLoader_Map_1.load(url_map_1);
myLoader_Map_1.alpha = 1;
addChild(myLoader_Map_1);
setChildIndex(myLoader_Map_1, 2);
myLoader_Map_2.unloadAndStop();
ScreenSaver_Unload();
Maps = true;
Ss = false;
MC_Maps_Btns.Btn_Map_1.visible = false;
MC_Maps_Btns.Btn_Map_2.visible = true;
//--------------------Map 1 ---------------------------------
MC_Maps_Btns.Btn_Map_2.addEventListener(MouseEvent.CLICK,OpenMap2);
function OpenMap2(e:MouseEvent):void {
var url_map_2:URLRequest = new URLRequest("Map_2.swf");
unloadAllF();
myLoader_Map_2.load(url_map_2);
myLoader_Map_2.alpha = 1;
addChild(myLoader_Map_2);
setChildIndex(myLoader_Map_2, 2);
myLoader_Map_1.unloadAndStop();
ScreenSaver_Unload();
Maps = true;
Ss = false;
MC_Maps_Btns.Btn_Map_2.visible = false;
MC_Maps_Btns.Btn_Map_1.visible = true;
//--------------------Timer ---------------------------------
var inactiveTime:int = 10000;
var t:Timer = new Timer(inactiveTime);
stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown1);
t.addEventListener(TimerEvent.TIMER, onTimer);
t.start();
function onMouseDown1(e:MouseEvent):void {
t.reset();
t.start();
trace("Interaction detected");
function onTimer(e:TimerEvent):void {
handleInactivity();
function handleInactivity():void {
trace('You\'re inactive.');
if (Maps == true){
myLoader_Map_1.unloadAndStop();
myLoader_Map_2.unloadAndStop();
else{
trace("No Maps");
if (Ss == false ){
ScreenSaver();
MPclose();
else{
trace("ScreenSaver already loaded");

Transition_Manager and unloading external swf problems

Hi there
I´m having a few problems with my project which i although it work it has some unpleasant bugs that i´m trying to solve for days.
When i load external swf´s they show up on top of the Menu button.Maybe because the button i´m pressing is inside the same movieclip as the Menu.
Explaining better here´s a little diagram of my site:
con2 MC (Instance of Menu) ---> cont3 MC (Instance of subMenu) and mainButton MC (Instance of Main)
Here´s the general code which is inside the Painel.as
package {
    import com.greensock.TweenLite;
    import com.greensock.TweenMax;
    import com.greensock.*;
    import com.greensock.easing.*;
    import flash.display.*;
    import flash.events.*;
    import flash.display.MovieClip;
    import fl.transitions.*;
    import fl.transitions.easing.*;
    import flash.net.URLRequest;
    import flash.display.Loader;
    import flash.events.Event;
    import flash.events.ProgressEvent;
    public class Painel3 extends MovieClip
        private var inFocus:MovieClip;
        public function Painel3():void
            setupClips();
            addEventListener(Event.ENTER_FRAME, loop);
        private function setupClips():void
        con2.mainButton.addEventListener(MouseEvent.ROLL_OVER, onOver);
        con2.mainButton.addEventListener(MouseEvent.ROLL_OUT, onOut);
        con2.mainButton.addEventListener(MouseEvent.CLICK, onClick);
            var len:int = con2.cont3.numChildren;
            for(var i:int=0; i<len; i++)
                var mc:MovieClip = MovieClip(con2.cont3.getChildAt(i));
                mc.buttonMode = true;
                mc.loc = [mc.x, mc.y];
                mc.addEventListener(MouseEvent.CLICK, onClick);
                con2.cont3.visible = false;
        private function onOver(e:MouseEvent):void
        private function onOut(e:MouseEvent):void
        private function onClick(e:MouseEvent):void
            con2.cont3.visible = true;
TransitionManager.start(con2.cont3, {type:Wipe, direction:Transition.IN, duration:1, easing:None.easeNone, startPoint:5} );
        private function loop(e:Event):void
            var distx:Number = mouseX / 1400;
            var disty:Number = mouseY / 1400;
            TweenLite.to(con2, 2, {
                        rotationY:(-70 +(145*distx)),
                        rotationX:(70 -(145*disty)),
                        ease:Expo.easeOut
And then inside the subMenu.as class for the movieclip subMenu i have the buttons that load the external swf´s:
package {
    import com.greensock.TweenLite;
    import com.greensock.TweenMax;
    import com.greensock.*;
    import com.greensock.easing.*;
    import flash.display.*;
    import flash.events.*;
    import flash.display.MovieClip;
    import flash.net.URLRequest;
    import flash.display.Loader;
    import flash.events.Event;
    import flash.events.ProgressEvent;
    import fl.transitions.*;
    import fl.transitions.easing.*;
    public class subMenu extends MovieClip {
        public function subMenu() {
            // constructor code
            menu1.buttonMode = true;
            menu2.buttonMode = true;
            menu3.buttonMode = true;
            menu4.buttonMode = true;
             menu1.addEventListener(MouseEvent.CLICK,link1);
             menu2.addEventListener(MouseEvent.CLICK,link2);
             menu3.addEventListener(MouseEvent.CLICK,link3);
             menu4.addEventListener(MouseEvent.CLICK,link4);
        function link1(e:MouseEvent) {
           function startLoad()
            var mLoader:Loader = new Loader();
            var mRequest:URLRequest = new URLRequest("AugmentedReality_v1.swf");
            mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
            mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
            mLoader.load(mRequest);
function onCompleteHandler(e:Event):void {
var swf:DisplayObject = e.target.content;
swf.x = -400;
swf.y = -300;
addChild(swf);
function onProgressHandler(mProgress:ProgressEvent)
       var percent:Number = mProgress.bytesLoaded/mProgress.bytesTotal;
       trace(percent);
startLoad();
        function link2(e:MouseEvent) {
            function startLoad()
            var mLoader:Loader = new Loader();
            var mRequest:URLRequest = new URLRequest("Fotos.swf");
            mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
            mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
            mLoader.load(mRequest);
function onCompleteHandler(e:Event):void {
var swf:DisplayObject = e.target.content;
swf.x = -400;
swf.y = -300;
addChild(swf);
function onProgressHandler(mProgress:ProgressEvent)
       var percent:Number = mProgress.bytesLoaded/mProgress.bytesTotal;
       trace(percent);
startLoad();
        function link3(e:MouseEvent) {
        function link4(e:MouseEvent){
            function startLoad()
            var mLoader:Loader = new Loader();
            var mRequest:URLRequest = new URLRequest("Texto.swf");
            mLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
            mLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
            mLoader.load(mRequest);
function onCompleteHandler(e:Event):void {
var swf:DisplayObject = e.target.content;
swf.x = -400;
swf.y = -300;
addChild(swf);
function onProgressHandler(mProgress:ProgressEvent)
       var percent:Number = mProgress.bytesLoaded/mProgress.bytesTotal;
       trace(percent);
startLoad();
Like i said the swf´s show up on top of the Menu and i need it to dissapear.
Also i want to unload the swf currently in scene so that when i load another one they don´t pile on top of each other.
Pls help. Thanks

Oh btw, i´m having an error 1069 Property TransitionManager not found in subMenu and there is no default value
at fl.transitions::TransitionManager$/start()
    at Painel3/onClick()
This doesn´t happen when i uncheck the Export for actionscript in the subMenu class but i can´t do that or else the buttons wont work.

Unloading external swf problem - deadline approaching

Hi,
We bought a component, and the developers are not real
helpful so I thought I would try here. We have the well-known AS 3
problem of events continuing to run even after you've unloaded a
swf. Here is what we got:
a main swf loads one of 7 secondary swfs, based on a button
click. each of the secondary swfs contains the component (a 3D
wall) that we purchased. we don't seem to have access to the code.
we unload one swf load the next, and then after we do this a few
times we get the following crash (output way below).
The component does have a closeWall() function, which i'm
assuming cleans things up. The problem is I don't know how to call
a function on an externally loaded swf? Is that possible? In other
words I want to say:
var loader:Loader;
function loadSwf(){
loader = new Loader();
var urlRequest:URLRequest = new URLRequest ("vidSub.swf");
loader.load(urlRequest);
addChildAt(loader, getChildIndex(holder));
function unloadSwf(){
// hey swf, close properly, before I unload you
loader.closeWall();//or something like this
loader.unload();
Thanks so much if you can help.
Doug
Crash output:
Error: Error #2094: Event dispatch recursion overflow.
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.display::Stage/dispatchEvent()
at
org.papervision3d.core.utils.virtualmouse::VirtualMouse/::handleUpdate()
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at
org.papervision3d.core.utils.virtualmouse::VirtualMouse/update()
at
org.papervision3d.core.utils.virtualmouse::VirtualMouse/setLocation()
at
org.papervision3d.core.utils::InteractiveSceneManager/org.papervision3d.core.utils:Intera ctiveSceneManager::handleMouseMove()
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.display::Stage/dispatchEvent()
at org.papervision

I feel for you...
You may want to try to instantiate the thing not through
adding loader to display list but accessing application domain and
creating an instance of its class. Some application will not do a
thing if you just add them to display list and accessing their
interfaces (I love doing that for one :-). In any case - I am not
sure it is such a good idea to add the loader directly - not within
INIT event listener.
You may want to try accessing their application domain and
loop through its properties to see which ones are enumerable. In
the error stack you can see some their classes so you know already
what to access. For instance there is
org.papervision3d.core.utils.InteractiveSceneManager class.
I don't say anything new but it looks like there is the same
event flying around which is dispatched by some listener causing
recursion. Can it be that your custom events have the same type as
theirs? Try to listen to their events through making listener
listen in capture phase by setting third parameter to true:
blah.addEventListener("eventType", eventHandler, true) - you may be
able to explicitly remove their event listener if you know which
one. Or, perhaps, this is your mouse event that conflicts with
theirs...
Sorry I cannot be more helpful.

How to unload/load swf

I have a Flash movie that automatically opens another Flash movie inside it. The main swf has a "Start" button at the bottom. When I click the Start button I want to unload the swf that loaded automatically (as a placeholder) and load a new Flash video swf. I'm doing this to create a placeholder for the video. I don't know what code I need to use on the button to unload the automatic swf and load the new swf video.

if you don't need to stop any loaded streams (like sound/video), you can just reuse the same loader to load the next swf. otherwise, apply unloadAndStop() to your loader before loading the next swf.

Unload movieclip /swf

Hi there.
I have the index.swf and I want to open another swf (called about.swf). I have some buttons in the index, including the "home" button to unload.
I also created a movielip, that has buttons inside it that let the person click to navigate to another swf.
In the index I have the following code:
var aboutURL:URLRequest = new URLRequest("about.swf");
var contentor:Loader = new Loader();
addChild(contentor);
contentor.x = 92;
contentor.y = 95;
about_btn.addEventListener(MouseEvent.CLICK, openAbout);
function openAbout (e:MouseEvent)
contentor.load(aboutURL);
This code lets me click on the about_btn and load the about.swf. I also have a home_btn to unload the "contentor" (which I dont show in this code).
Inside the movieclip I added an actions layer and put the following code:
var aboutURL:URLRequest = new URLRequest("about.swf");
var portfolioURL:URLRequest = new URLRequest("portfolio.swf");
var contentor:Loader = new Loader();
MovieClip(parent).addChild(contentor);
contentor.x = 92;
contentor.y = 95;
aboutmc_btn.addEventListener(MouseEvent.CLICK, openAbout);
function openAbout (e:MouseEvent)
contentor.load(aboutURL);
In this code I created a button called "aboutmc_btn" inside the movieclip that, when clicked, shows the same about.swf. The problem is that when I click on the "home" button (which is on the index and not inside the movieclip) the .swf "contentor" remains there and the movieclip continues there.
What should I do to unload both the movieclip and the about.swf after I click in the aboutmc_button?
Thanks a lot!!!

The curious thing is that if the button is outside of the movieclip and opens a new swf, when i click on the home button to unload the swf it works. but if the swf is opened by clicking on the button that is inside of the movieclip, and then i click on the home button to unload the swf, the swf remains in the stage. i think i have to include something like a remove ... in the home button to kill the URLRequest called by the button inside the movieclip no? I just don't know what to add..

Loading/Unloading a .swf that adds event listeners to the Stage

Hi all,
Disclaimer
Apologies if I suck so bad at using forum search that the answer to this is on page 1 somewhere; I tried...
Question
I am loading and unloading a .swf to which I do not have source code access. This .swf places several event listeners on the stage, as far as I can tell. When the .swf is unloaded, the event listeners placed upon the stage still seem to be in effect. Using unloadAndStop doesn't seem to do it, and I have to target Flash Player 9, anyway, so can't really use it. Is there any other way I can keep this external .swf from holding onto my main movie's stage?
Additional info
All eventListeners and references being set by my code are removed.
I've managed a little contact with the author of the .swf:
I've requested he provide a dispose() method I can call to get all the listeners removed, and send an updated .swf.
He's suggested that I should be able to avoid the problem by loading into a unique ApplicationDomain. I'm not terribly familiar with this, but have given it a try without much success. Is this a valid solution - can I really protect my 'stage' by properly using ApplicationDomains - or do I need to persist in trying to get a public dispose() method built in?
Thanks in advance!
Cheers, John

thanks for reply sir
sir actually, i have not any problem with loading any file but i need to go back to intro.swf file when i click on clsbtn of main.swf, i want unload the main.swf file and panel.swf file
actually i did was, i have intro.swf file and there is button by clicking load main.swf file (where is timeline controling butons) and in the main file automatically load panel.swf file ( where is all animation)
its all play gud , no problem
but my problem is there is a clsbtn in main.swf file and when i click on that button everything should be unload and it should return on the previous position in intro.swf
i hope u understand what i am trying to say

Unable to unload external swf which is using runtime sharing

Unable to unload external swf which is using runtime sharing of some symbols and classes.
Due to this problem i am unable to load another swf or the same for the second time and getting errors at runtime.
It works fine when the swf is opened in IE.
Can anyone please help me in solving the issue.

thank you
i have tried to use   this.parent.Click_To_Close but it gives compilation error
i checked the tutorial about custom events i think its little complex for me now to understand the typeriter app.
also i cheked the similer thread and tried to test that code myself..i found that the last block of main movie does not works and does not unload the loader2. however all the trace are showing in the output windows that i added to check the code but last trace from the main movie is not showig...
trace("child removed from Main Movie")
so if this can work somehow i will use this method of event dispatch in my application that i am working...
Thank you
-----main movie ---------
var loader1:Loader = new Loader();
var loader2:Loader = new Loader();
loader1.contentLoaderInfo.addEventListener(Event.COMPLETE, assignMovie1Listener);
loader1.load(new URLRequest("movie_1.swf"));
loader2.load(new URLRequest("movie_2.swf"));
addChild(loader1);
addChild(loader2);
function assignMovie1Listener(evt:Event):void {
      MovieClip(evt.currentTarget.content).addEventListener("eventTriggered", removeLoader2);
            trace("listner is listning..")
function removeLoader2(evt:Event):void {
      loader2.unloadAndStop();
      removeChild(loader2);
         loader2 = null;
            trace("child removed from Main Movie")
//------------- movie_1.swf code:
removeMovie2_btn.addEventListener(MouseEvent.CLICK , removeMovie2);
function removeMovie2(event:MouseEvent):void
      dispatchEvent(new Event("eventTriggered"));
            trace("event triggered form Child Movie-1");
as u can see when i click close button its triggering the trace from movie-1 but its not unloadign the movie2

Unload external swf from flv component

Please help.
Is it possible to add action script to the flv player
componet buttons?
I am trying to unload an external swf file (voice over) if
the viewer chooses to play one of the many videos in the
presentation. Currently I am using an invisible button over the flv
component play button which unloads the swf. This works but would
rather assign the action directly to the flv play button on press.
Any suggestions? Thank you

I've created a empty movieclip at x : 0, y : 0 instanced as "container"
i've got working like this,
but now i 'm trying to call a function in root, directly from child.
luca.swf (back button_
box.bt_voltar.addEventListener(MouseEvent.CLICK,onClosed);
function onClosed(e:MouseEvent):void {
          if(this.parent) {
                     if(this.parent is Loader && this.parent.parent)
                      this.parent.parent.removeChild(this.parent);
                     else
                      this.parent.removeChild(this);
          var p:MovieClip = this.parent.parent as MovieClip;
          p.traceEntrada();
and main.swf
function lucaHandler(e:MouseEvent):void
                    limpaHome();
                    bt_luca.visible = false;
                    bt_conheca.visible = false;
                    bt_jogo.visible = false;
                                var ldrLuca:Loader=new Loader();
                              ldrLuca.load(new URLRequest("luca.swf"));
                              ldrLuca.contentLoaderInfo.addEventListener(Event.COMPLETE, onCompleteHandler);
                              addChild(ldrLuca);
                    function onCompleteHandler(loadEvent:Event):void{
                              container.addChild(loadEvent.currentTarget.content);
function traceEntrada():void{
               trace("called from B.swf");
Now, as you can see, how can i call a function in parent from the loaded swf.
how can i call this trace function from the external loaded swf?
    var p:MovieClip = this.parent.parent as MovieClip;
     p.traceEntrada();
ps, im not using classes

UNLOAD External SWF on Mouseclick

All of my buttons load their respective external swf files. However, they load on top of each other. How do I set each button to UNLOAD the external swf's that have already been loaded by the previous buttons.
Here is what I have now:
movieClip_1.addEventListener(MouseEvent.CLICK, fl_ClickToLoadUnloadSWF);
var fl_Loader:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad:Boolean = true;
fl_ClickToLoadUnloadSWF(null); // load the swf at the start
function fl_ClickToLoadUnloadSWF(event:MouseEvent):void
    if(fl_ToLoad)
        fl_Loader = new Loader();
        fl_Loader.load(new URLRequest("album1.swf"));
        addChild(fl_Loader);
        fl_ToLoad = false;
    else
        fl_Loader.unload();
        removeChild(fl_Loader);
        fl_Loader = null;
        fl_ToLoad = true;
movieClip_2.addEventListener(MouseEvent.CLICK, fl_ClickToLoadUnloadSWF_2);
var fl_Loader_2:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad_2:Boolean = true;
function fl_ClickToLoadUnloadSWF_2(event:MouseEvent):void
    if(fl_ToLoad_2)
        fl_Loader_2 = new Loader();
        fl_Loader_2.load(new URLRequest("album2.swf"));
        addChild(fl_Loader_2);
    else
        fl_Loader_2.unload();
        removeChild(fl_Loader_2);
        fl_Loader_2 = null;
    // Toggle whether you want to load or unload the SWF
    fl_ToLoad_2 = !fl_ToLoad_2;
movieClip_3.addEventListener(MouseEvent.CLICK, fl_ClickToLoadUnloadSWF_3);
var fl_Loader_3:Loader;
//This variable keeps track of whether you want to load or unload the SWF
var fl_ToLoad_3:Boolean = true;
function fl_ClickToLoadUnloadSWF_3(event:MouseEvent):void
    if(fl_ToLoad_3)
        fl_Loader_3 = new Loader();
        fl_Loader_3.load(new URLRequest("album3.swf"));
        addChild(fl_Loader_3);
    else
        fl_Loader_3.unload();
        removeChild(fl_Loader_3);
        fl_Loader_3 = null;
    // Toggle whether you want to load or unload the SWF
    fl_ToLoad_3 = !fl_ToLoad_3;

Your code is too much bad , sorry to say.
Please try the following code that I have made for you.
Here the code is much too smaller than yours and also hope it will solve your problem.
import flash.events.MouseEvent;
import flash.display.Loader;
movieClip_1.addEventListener(MouseEvent.CLICK, loadUnloadSWF);
movieClip_2.addEventListener(MouseEvent.CLICK, loadUnloadSWF);
movieClip_3.addEventListener(MouseEvent.CLICK, loadUnloadSWF);
var fl_ToLoad:Boolean = true;
var fl_Loader:Loader;
var previous_btn:String;
loadUnloadSWF(null);
function loadUnloadSWF(event:MouseEvent):void
    try{
    var str:String = event.target.name.split("_")[1];
    }catch(e:Error){str="1";}
    try{
    fl_Loader.unload();
    }catch(e:Error){}
    if(previous_btn != str)
        fl_Loader = new Loader();
        fl_Loader.load(new URLRequest("album"+str+".swf"));
        addChild(fl_Loader);
    previous_btn = str;
Regards
Sazzad Ahmmed Mohon

[svn:fx-3.x] 12301: Clean up lastSystemManager reference when SWFLoader unloads a SWF.

Revision: 12301
Revision: 12301
Author:   [email protected]
Date:     2009-11-30 14:52:14 -0800 (Mon, 30 Nov 2009)
Log Message:
Clean up lastSystemManager reference when SWFLoader unloads a SWF.
When SWFLoader unloads itself null out SystemManager.lastSystemManager reference if the reference is the content it loaded. This will prevent SWFLoader leak reports when simply loading and unloading a swf.
Move the removeInitSystemManagerCompleteListener() code before we unload because the contentLoaderInfo is destroyed by the time we get the unload message.
Add code to prevent double loading.
QE notes: None.
Doc notes: None.
Bugs: SDK-18076
Reviewer: Alex
Tests run: checkintests, MarshallPlan, components/SWFLoader
Is noteworthy for integration: no
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-18076
Modified Paths:
    flex/sdk/branches/3.x/frameworks/projects/framework/src/mx/controls/SWFLoader.as

Hello,
using that page as guide:
http://help.adobe.com/en_US/FlashPlatform/beta/reference/actionscript/3/flash/events/Uncau ghtErrorEvent.html#includeExamplesSummary
(last sample on where to insert handlers) what about:
<s:SWFLoader id="swfLoader" init="swfLoaderInitHandler(event)" source="B.swf"/>
and:
protected function swfLoaderInitHandler(event:Event):void
     if(!swfLoader.content) return;
     swfLoader.content.loaderInfo.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAU GHT_ERROR,
          uncaughtErrorHandler);
protected function uncaughtErrorHandler(errorEvent:UncaughtErrorEvent):void
     if(errorEvent.error is Error)
          var e:Error = errorEvent.error as Error;
          // my error is 1009 - it is expected here
          const NULL_ERROR:uint = 1009;
          if(e.errorID == NULL_ERROR)
               errorEvent.preventDefault();
               Alert.show(e.errorID+" "+e.message);
          // else fall through
     // else fall through
B is supposed to fail:
private var emptyObject:Object = null;
public function B()
     flash.utils.setTimeout(throwErrorNow, 100);
protected function throwErrorNow():void
     emptyObject.numericValue();
regards,
Peter

Problem with loading and unloading external swfs

Hello Forum,
I'm pretty new to as3, and it's giving me a great challenge. I have a large number of captivate files that I want to play inside a simple container built in CS5.5... but switching back and forth between all the movies hogs the memory like crazy, so I need something to clean it up. All code is in a single frame on the main timeline. First, I create the loader:
var FlashLoader:Loader = new Loader();
var flashUrl:URLRequest = new URLRequest("placeholder.swf");
FlashLoader.load(flashUrl);
addChild(FlashLoader);
The actual movies are located via an XML... but as I said the memory problem is huge, so I tried to build something to get rid of that. Ideally, I want the loader to clean up everything and start life anew with a single mouse click, like so:
function _mouseClickHandler2(event:MouseEvent):void {
          FlashLoader.unloadAndStop();
          FlashLoader.parent.removeChild(FlashLoader);
          FlashLoader = null;
          var flashUrl:URLRequest = new URLRequest(event.target.href);
          var FlashLoader:Loader = new Loader();
          addChild(FlashLoader);
          FlashLoader.load(flashUrl);
          FlashLoader.x = 120;
          setChildIndex(FlashLoader,0);
          trace(FlashLoader.parent.numChildren);
//          System.gc();
//          System.gc();
//          try {
//                    new LocalConnection .connect('gc');
//                    new LocalConnection .connect('gc');
//          } catch (e: * ) {
//          trace(getMemory ());
//trace(event.target.href);
//trace(event.target.text);
Upon clicking on the menu (and thus switching movies), I get the following error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
          at Treeview_working_fla::MainTimeline/_mouseClickHandler2()
And this doesn't make sense to me. The FlashLoader is given a placeholder swf at the beginning, so why would the FlashLoader inside the function be recognized as having a null object reference?
Thanks in advance

In my quest to tackle this problem, I've decided to try and isolate the problem, and have made a simple "click to load, click to unload" when I stumbled upon a curious problem. The movie loads fine, and the UNLOAD function upon mouseclick also works perfectly. However, upon clicking again to activate RELOAD, it gives the error "No active security context" and refuses to load the same exact swf with the same exact path that successfully loaded the first time!
import flash.events.MouseEvent;
import flash.display.Loader;
import flash.net.URLRequest;
var FlashLoader:Loader = new Loader();
var flashUrl:URLRequest = new URLRequest("folder/subfolder/movie.swf");
FlashLoader.x = 120;
FlashLoader.load(flashUrl);
stage.addChild(FlashLoader);
stage.addEventListener(MouseEvent.CLICK, UNLOAD);
function UNLOAD(event:MouseEvent) {
          flashUrl = null;
          stage.removeChild(FlashLoader);
          FlashLoader.unloadAndStop();
          stage.removeEventListener(MouseEvent.CLICK, UNLOAD);
          stage.addEventListener(MouseEvent.CLICK, RELOAD);
function RELOAD(event:MouseEvent) {
          var FlashLoader:Loader = new Loader();
          var flashUrl:URLRequest = new URLRequest("folder/subfolder/movie.swf");
          FlashLoader.x = 120;
          FlashLoader.load(flashUrl);
          stage.addChild(FlashLoader);
          stage.removeEventListener(MouseEvent.CLICK, RELOAD);
          stage.addEventListener(MouseEvent.CLICK, UNLOAD);

Loading and Unloading of swf files in SWF Loader

Hi all,
I have a doubt reg. SWF Loader.
I have created two mxml files A & B.
A. local.mxml
B. SwfSample.mxml
i have two labels and a button in A file and i have set values to those labels and have a method to handle the click event of the button. In B file i have loaded this A file and accessed the labels and methods using SystemManager Component and changed the values of the A file's label and accessed data from A file to B file.
Here comes the problem,
I have two buttons named LoadAgain and Unload
When i click the Unload button, the SWF Loader unloads its content by the method i handled for the Unload button, after that i have clicked on the LoadAgain button to load the same content of A's mxml to the SWF Loader, it loads succesfully,but i was not able to access its Label or Method from the B mxml. Please help me to solve the issue.
local.mxml
<?xml version="1.0" encoding="utf-8"?><mx:Application
xmlns:mx=http://www.adobe.com/2006/mxml layout="absolute">
<mx:Script>
    <![CDATA[
Bindable]
    public var varOne:String = "This is a public variable";
    public function setVarOne(newText:String):void
          varOne = newText;
    ]]>
</mx:Script>
<mx:Label id="lblOne" text="I am here" x="28" y="88"/>
<mx:Label text="{varOne}" x="166" y="88"/>
<mx:Button label="Nested Button" click="setVarOne('Nested Button Pressed');" x="28" y="114"/>
SwfSample.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx=http://www.adobe.com/2006/mxml layout="absolute">
    <mx:Script>
    <![CDATA[
          import mx.controls.Alert;
          import mx.managers.SystemManager;
          import mx.controls.Label;
Bindable]
          public var loadedSM:SystemManager;
          private function initNestedAppProps():void
              loadedSM = SystemManager(myLoader.content);
          public function updateLabel():void
              lbl.text = loadedSM.application[
"lblOne"].text;
          public function updateNestedLabels():void
              loadedSM.application[
"lblOne"].text = "I was just updated" ;
              loadedSM.application[
"varOne"] = "I was just updated";
          public function updateNestedVarOne():void
               local(loadedSM.application).setVarOne(
"Updated varOne");
          public function unload():void
               myLoader.content.loaderInfo.loader.unload();
          public function loadAgain():void
               myLoader.load(
"../bin-debug/local.swf");
        ]]>
     </mx:Script>
<mx:Label id="lbl" x="72" y="47"/>
<mx:SWFLoader id="myLoader" width="438" source="../bin-debug/local.swf" creationComplete="initNestedAppProps();" y="73" height="238" x="72" alpha="1.0"/>
<mx:Button label="Update Label Control in Outer Application" click="updateLabel();" x="72" y="319"/>
<mx:Button label="Update Nested Controls" click="updateNestedLabels();" x="72" y="349"/>
<mx:Button label="Update Nested varOne" click="updateNestedVarOne();" x="72" y="379"/>
<mx:Button label="Unload" click="unload();" x="72" y="409"/>
<mx:Button label="Load Again" click="loadAgain();" x="72" y="439"/>
</mx:Application>
Thanks & regards,
Sathish.K

creationComplete only fires once when the SWFLoader is created. Therefore you never reset your variables to point to the new sub-app. On a slow network, creationComplete may fire before the sub-app loads. It is best to use the COMPLETE event.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui

Unload an SWF?

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