How to unload a movie clip within a movie clip.

Question

Hi all,
I am trying to unload a movie clip that is on a layer in a
movie clip. After clicking on a button, I would like the movie to
go back to the previous menu without playing a couple of movie
clips that's in the main movie clip.
So at the end of my movie clip I have:
_parent.gotoAndPlay("resources"); // resources is the frame
name in the main movie clip where I would like the movie to restart
from
_parent.vhost_mc.unloadMovie("vhost_mc"); //vhost_mc is a
movie clip in the main movie clip that I want to unload
_parent.videoScreen_mc.unloadMovie();
But the videoScreen_mc doesn't unload. The main movie clip
starts with the videoScreen and I've actually deleted the frames of
videoScreen_mc where the "resources" frame starts, but still it
appears.
I've even tried _parent.videoScreen_mc._visible = false; but
nothing works! I've tried createEmptyMovieClip, but since the
videoScreen_mc is on the main timeline, I don't think it works.
I've even tried putting this function on the "resources" frame:
onEnterFrame = function() {
play();
vhost_mc.unloadMovie("vhost_mc");
vhost_mc.removeMovieClip();
this.videoScreen_mc.unloadMovie();
this.videoScreen_mc.removeMovieClip();
this.mask._visible = false;
But when I do this, the play button loops starting at the
"resources" frame.
Essentially I would like the main movie clip to play without
certain movie clips that's included within the main movie clip.
I hope I'm making sense. Please help, I've been at this for
days!

Answer 1

Olá Felipe, tudo bem com você?
In order to unload content loaded into a Loader object you can use either the unload() method or the unloadAndStop() method. The difference between them is that unloadAndStop() will unload the loaded SWF and try to stop executing any code that it was running including animations, sound and event listeners.
If you wanto to call the unload() or unloadAndStop() methods from the loaded SWF you can use its loaderInfo.loader property to reference the Loader object that loaded it.
It could be someting like this:
this.closeButton.addEventListener(MouseEvent.CLICK, this.handleClose);
protected function handleClose(event:MoueEvent):void {
     this.loaderInfo.loader.unloadAndStop();
You can pass a Boolean parameter to unloadAndStop() to indicate if Flash's garbage collector should be run ont the unloaded SWF in order to free up memory. Considering the size of your SWFs, this could be a good option. The downside is that there is a performance penalty and in my professional experience, CPU is still a resource that is more scarce than memory, so use with care.
Hope this helps.
Abraço,
Rui