Adobe Community: Unload and Stop swf from stage

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Unload and Stop swf from stage

Jun 7, 2012 7:31 AM

Tags: #button #3 #actionscript #home #unloadandstop #as

Hi,

I'm a newbie to Flash and Actionscript. I need to give links to around 20 swf files via buttons from the menu.swf. I'm able to give links. But when I come back by clicking HOME button kept at the newly loaded swf the audio files are still being played at the background.

Yes, It has got audio files playing at the back for each slide in the new swfs. When Click on the same link again in menu.swf again the files are being played with the unfinished old file. It's really hectic.

I need to unload it completely from stage when I come back to menu.swf by clicking on HOME button from any of 20 categories.

I used unloadAndStop but it is not doing. I hope that I'm commiting mistakes at somewhere but couldn't predict.

Need some help !

FOR HOME BUTTON:

var _content:Loader = new Loader();

function loadContent(content:String):void {

if (_content != null) {

_content.unloadAndStop(true);

removeChild(_content);

_content = null;

}

var loader:Loader = new Loader();

loader.load(new URLRequest(content)); //---->>>> I don't really know what should be put in this :-(

_content = addChild(loader) as Loader;

}

Home_Button.addEventListener(MouseEvent.CLICK, home);

function home(event:MouseEvent) {

_content.unloadAndStop(true);

var homeSWF:URLRequest = new URLRequest("demo.swf");

_content.load(homeSWF);

addChild(_content);

}

FOR MENU.swf button

var loader:Loader = new Loader();

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {

var Category1SWF:URLRequest = new URLRequest("Category1.swf");

loader.load(Category1SWF);

addChild(loader);

}

3700 Views 28 Replies Latest reply: kglad, Jun 11, 2012 4:40 PM

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62,194 posts
Jul 21, 2002

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1. kglad,

Jun 7, 2012 7:37 AM in reply to kumar0607

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there are some problems with that code. but to start fixing that, how many different swfs do you need to load at any one time?

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2. kumar0607,

Jun 7, 2012 7:45 AM in reply to kglad

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Hi kglad,

Thanks for replying in very short span of time. I'll put in this way.

Approx 20 buttons are on the stage - file named menu.swf. Each button will have link to separate swfs. Come to your valuable question. I need to load only one swf at one time.

The flow of the project is, Each swf will have around 10-12 slides with separate voice over associated with it. When one swf finishes it should automatically load the next swf.

But at any time from any swf the user should be able to come back to menu.swf by clicking on HOME button which is available on each swf.

Hope this sounds clear. Awaiting your valuable reply.

Thanks.

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3. kumar0607,

Jun 8, 2012 11:50 AM in reply to kglad

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Hi kglad,

I'm still awaiting your valuable reply.

Thanks in advance.

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4. kumar0607,

Jun 8, 2012 12:04 PM in reply to kumar0607

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Hi,

I have actually added the bolded lines in both actionscripts. Now the audio gets stopped properly when I come back from category1 swf to menu.swf. But still the category1 swf stays on background.

When I use keyboard TAB key to navigate I can find those invisible buttons of category1 swf and able to click ( using spacebar ) on it even it is invisible. It starts playing the file at the background invisibily.

I found it by hearing the voice over of the slides. Hope you understand. I just want to unload the whatever category I load and come back to menu.swf. Need Help !!!

var _content:Loader = new Loader();

Home_Button.addEventListener(MouseEvent.CLICK, home);

function home(event:MouseEvent) {
    _content.unloadAndStop(true);
    SoundMixer.stopAll();
    var homeSWF:URLRequest = new URLRequest("demo.swf");
    _content.load(homeSWF);
    addChild(_content);
}

FOR MENU.swf button

var loader:Loader = new Loader();

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
    var Category1SWF:URLRequest = new URLRequest("Category1.swf");
    loader.load(Category1SWF);
    SoundMixer.stopAll();
    addChild(loader);

}

Thanks !

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5. kglad,

Jun 8, 2012 12:30 PM in reply to kumar0607

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if you only need to load one swf at any one time, use one loader:

var _content:Loader = new Loader();
addChild(_content);

function loadContent(content:String):void {
    if (_content.content != null) {
        _content.unloadAndStop(true);
    }

    _content.load(new URLRequest(content));
}

Home_Button.addEventListener(MouseEvent.CLICK, home);

function home(event:MouseEvent) {

    var homeSWF:URLRequest = new URLRequest("demo.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(homeSWF);
}

FOR MENU.swf button

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
    var Category1SWF:URLRequest = new URLRequest("Category1.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(Category1SWF);

}

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6. kumar0607,

Jun 8, 2012 12:46 PM in reply to kglad

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Hi,

Thanks for your reply. I did replace the code with yours. When I'm on menu.swf I click on Category1.swf button. It plays the file and I can hear the sound but unable to see the display. It still stays on menu.swf and the background music of menu.swf mixes with Category1.swf file sound.

I meant the sound files of menu.swf and Category1.swf gets overlapped. Unable to see the Category1.swf display. I can only see menu.swf display.

Hope you understand.

My 4th reply works fine but Category1.swf stays on background as I told on that reply. Please have a look at and expecting your reply.

Thanks.

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7. kumar0607,

Jun 8, 2012 1:05 PM in reply to kumar0607

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Hi,

I don't really understand that where are we calling loadContent function in the script ? I have placed the below codes for

Home Button:

var _content:Loader = new Loader();
addChild(_content);           //------------------------------------->>>>> What will actually be add as a child here ?

function loadContent(content:String):void {
    if (_content.content != null) {
        _content.unloadAndStop(true);
    }

    _content.load(new URLRequest(content)); //------------------->>>> What content is this ? Default property ? //Why because we never declared this variable anywhere.
}

Home_Button.addEventListener(MouseEvent.CLICK, home);

function home(event:MouseEvent) {

    var homeSWF:URLRequest = new URLRequest("demo.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(homeSWF);
}

For Menu.swf Button:

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
    var Category1SWF:URLRequest = new URLRequest("Category1.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(Category1SWF);

}

My 4th reply works fine but Category1.swf stays on background as I told on that reply. Please have a look at and expecting your reply.

Thanks.

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8. kglad,

Jun 8, 2012 1:05 PM in reply to kumar0607

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use this code:

Home Button:

var _content:Loader = new Loader();
addChild(_content); // _content, a loader with no content is added to this timeline

function loadContent(content:String):void {
    if (_content.content != null) {
        _content.unloadAndStop(true);
    }

    _content.load(new URLRequest(content));
}

Home_Button.addEventListener(MouseEvent.CLICK, home);

function home(event:MouseEvent) {

    var homeSWF:URLRequest = new URLRequest("demo.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(homeSWF);
}

For Menu.swf Button:

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
    var Category1SWF:URLRequest = new URLRequest("Category1.swf");
if(_content.content){
_content.unloadAndStop();
}
    _content.load(Category1SWF);

}

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9. kumar0607,

Jun 8, 2012 1:26 PM in reply to kglad

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Hi,

The same happens what I mentioned in the 6th & 7th reply after did replace the 8th reply's code. I don't see any difference from 5th and 8th reply. Please have a look at and educate me. Thanks for spending your time for me.

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10. kumar0607,

Jun 8, 2012 1:53 PM in reply to kumar0607

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Hi,

Can this thread help us?

http://forums.adobe.com/message/3739886

I have seen you have replied to this. Would this give some idea ? Does this script serve the purpose ? I tried replacing the code with appropriate changes and looking like this.

Home Button:

var swf_loader:Loader = new Loader();

///unload previous swf

swf_loader.unloadAndStop();

removeChild(swf_loader);

////load new swf

swf_loader.load(new URLRequest("menu.swf"));

Home_Button.addEventListener(MouseEvent.CLICK, finishLoading);

function finishLoading(e:Event):void{

if(swf_loader.content){

addChildAt(swf_loader, 0);

    }
}

but getting error as

ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
    at flash.display::DisplayObjectContainer/removeChild()
    at Category1_fla::MainTimeline/frame55()

I think I'm complicating the simple thing.

Thanks.

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11. kglad,

Jun 8, 2012 1:58 PM in reply to kumar0607

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if you are not seeing a loaded swf it is because you are adding other objects to the display list AFTER _content is added and they are covering the loaded swfs.

to remedy, re-execute

addChild(_content);

to move _content to the top of the display list.

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12. kumar0607,

Jun 8, 2012 2:08 PM in reply to kglad

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Hi,

I could understand what you're saying but could you tell me where exactly the code should be readded ?

Where we actually calling loadContent function in the script?

Thanks.

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13. kumar0607,

Jun 8, 2012 2:39 PM in reply to kumar0607

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Hi,

I have added that line in menu.swf button and plays the Category1.swf with menu.swf's BGM overlapping. When I click on Home button it comes back to menu.swf with Category1.swf voice over still plays at the background. The same thing happens as I mentioned in opening of thread.

For Menu.swf Button:

var _content:Loader = new Loader();
addChild(_content);

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
var Category1SWF:URLRequest = new URLRequest("Category1.swf");
if(_content.content){
_content.unloadAndStop();
}
_content.load(Category1SWF);

}

This might be a simple thing. But I'm complicating this.

Please need some help !

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14. kglad,

Jun 8, 2012 4:30 PM in reply to kumar0607

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are you publishing for fp 10 or better?

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15. kumar0607,

Jun 9, 2012 1:03 AM in reply to kglad

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Hi,

I'm publishing it for fp 10 & 10.1 . Hope all functions would be recoginizable by the later versions of fp 10. I couldn't figure out what is happening...

Thanks.

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16. kumar0607,

Jun 9, 2012 2:15 AM in reply to kumar0607

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Hi,

I think, I'm wasting your precious time. The suggested code by me on this thread opening makes us tangled. Let me put the things very clearly. You please review the below requirements and
Educate me with your OWN CODE suggestion or Whatever !

Hope this makes sense.

Requirements:

For instance, I have two swfs.

1. menu.swf
2. Category1.swf

Both files are put in one folder to call eachother.
menu.swf will have 20 buttons in which Category1.swf button is one of them and has link to open it.
menu.swf has background music
Category1. swf has slides and voice over running behind.
Category1.swf has 4 buttons as of now.
          1. Previous ---- Works
          2. Next ---- Works
          3. Replay --- Works
          4. HOME --- Doesn't work ( Which points to menu.swf )

I just want to unload (including background music) menu.swf when go to Category1.swf and vice versa when clicking HOME button on Category1.swf

Please review this and advice.

Thanks in advance !

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17. kumar0607,

Jun 9, 2012 7:37 AM in reply to kumar0607

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Hi,

I'm awaiting your reply.

Thanks.

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18. kumar0607,

Jun 9, 2012 11:31 AM in reply to kumar0607

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Hi,

I'm still expecting your valuable solution to this issue.

Thanks.

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19. kglad,

Jun 9, 2012 12:01 PM in reply to kumar0607

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which is your main swf?

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20. kumar0607,

Jun 9, 2012 12:50 PM in reply to kglad

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Hi,

Thanks for replying me.

menu.swf which has 20 buttons is main swf.

Category 1
:
:
:
Category 20

are 20 sub swfs will have similar functionalities. User can click on any one of the 20 buttons in menu.swf --- main swf to go to appropriate Category swfs.

Thanks.

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21. kglad,

Jun 9, 2012 4:54 PM in reply to kumar0607

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then from the main timeline in category1.swf, use:

Category1_Button.addEventListener(MouseEvent.CLICK, category1);

function category1(event:MouseEvent):void {
var menu:URLRequest = new URLRequest("menu.swf");
if(MovieClip(parent)._content.content){
MovieClip(parent)._content.unloadAndStop();
}
MovieClip(parent)._content.load(menu);

}

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22. kumar0607,

Jun 10, 2012 4:20 AM in reply to kglad

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Hi,

Thank you so much for spending your time with me for writing and correctind codes. But The above code doesn't work for this project.

I don't have any movie clips anywhere in this project. I have all 21 swfs ( including menu.swf ) kept in one folder in the Operating System. I didn't keep any swf inside another or pasted in Timeline. No Movie clips. I want to keep menu.swf running initially. From there we can go to all 20 categories and come back to menu.swf by clicking on home button which is available on all 20 categories.

Awaiting your workable solution. To be honest I really appreciate your help. I hope we can sort out this issue in just couple of mins, If we are in chat or something related to that.

Thanks.

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23. kglad,

Jun 10, 2012 7:00 AM in reply to kumar0607

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i think there's a terminology issue.

your main swf is the swf that is embedded by your html page. it is the first swf to be displayed and it cannot be unloaded using actionscript.

it should contain loader, the only Loader instance you need.

that main swf may or may not be main.swf.

in your main swf, you should use:
/////////////////////////////////
var loader:Loader = new Loader();
addChild(loader);

function loadF(fileS:String):void {
    if(loader.content){
        loader.unloadAndStop();
    }
    loader.load(new URLRequest(fileS));
    addChild(loader);
}
function unloadF():void{
if(loader.content){
loader.unloadAndStop();
}
}
/////////////////////////////////////////

don't change anything between the ////// lines
----------------------------------------------------
from your main swf, if you want to load "catgoryxyz.swf", use:

loadF("categoryxyz.swf"); // this argument in this line you can and will change

from you main swf, if you want to unload whatever's been loaded (and appear to return to your main swf), use:

unloadF();
---------------------------------------------------
from the main timeline of any loaded swf (like categoryxyz.swf), if you want to load "categoryabc.swf", use:

MovieClip(this.parent.parent).loadF("categoryabc.swf"); // the argument in this line you can and will change

if you want a swf to unload itself (and appear to return to your main swf), use:

MovieClip(this.parent.parent).unloadF();
-----------------------------------------------------------------

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24. kumar0607,

Jun 10, 2012 11:35 AM in reply to kglad

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Hi,

First of all, I'm so grateful for your help. You are spending so much time on this issue. I did the same thing you told on the above reply. It took me 4 hours to work around But still crazy issues are happening.

As you have told menu file is still sitting at background. Even I can hear the Background music even after I clicked on some category's button. menu.swf's BGM is playing 31 secs ( time limit i've set in Timeline ) and stops playing it. After I'm on any category, using KEYBOARD KEYS I can still choose the menu.swf buttons which are staying at background invisibily.

We are going to release this on CD-ROM + HTML version.

Some crazy issues are also there which I couldn't document here. What shall we do? Are there some possibilities for you have a look at the .fla files? Are there possibilities for you to come on chat ? We can sort out this issue then and there?

Need some help !

Thanks.

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25. kglad,

Jun 10, 2012 5:01 PM in reply to kumar0607

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is "menu file" your main swf? ie, the first one that appears when your application starts?

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26. kumar0607,

Jun 10, 2012 11:25 PM in reply to kglad

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Hi,

Yes my dear flash grand master.

menu.swf is the first opening file. From here user can go to all 20 categories by clicking buttons which are available on menu.swf.

From any 20 categories they can come back to menu.swf by clicking home button.

Next category should be AUTOPLAYED, if they don't click on HOME button.

Please suggest me good ActionScript tutorial also.

Awaiting your reply.

Thanks.

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27. kumar0607,

Jun 11, 2012 12:23 PM in reply to kumar0607

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Hi Grand Master ( kglad ),

As you had told in 23rd reply the initially loaded file can be unloaded using Actionscript I did little trick in order to get this work done. I have kept the intial swf as just a background with the same stage color of all other swfs (All swfs are going to have same stage color) without anything controls in it. I just added the loadF and unloadF functions in that.

I consider this as parent. I load menu.swf from this using loadF();

From menu.swf I call other categories by clicking buttons using

MovieClip(this.parent.parent).loadF("categoryabc.swf");

It seems to work right now. Let me complete this project and let you know.

I want to know one thing that would there be any memory overloading issue arise as one swf is always staying at back? But there is no controls in it. I even checked it and it doesn't exhaust machine's memory.

Thanks for your great and timely help. You really rock.

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28. kglad,

Jun 11, 2012 4:40 PM in reply to kumar0607

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one swf (the main one or menu.swf in your situation) always remains loaded. you can stop all sounds in it (SoundMixer.stopAll() ) and you can position a stage colored and sized rectangle over everything in your main swf so it "appears" to be unloaded but you can't unload it.

and no, one swf will not overload memory unless it is creating more and more objects. you can use System.totalMemory in an enterframe loops (for example) to check whether you have a memory leak.

p.s. please mark helpful/correct responses, if there are any.

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