remove this child and add new child AS3

Question

i've been stuck on this for quite a while, i'm working with a Main.as and LivrmScreen.as and basically LivrmScreen.as is a game screen with other movieclip actions going on... then i have a button on LivrmScreen that i wish to remove LivrmScreen itself and show homeScreen (all the homeScreen functions are in Main.as)

var homeScreen: HomeScreen;
public function LivrmScreen() {

        backhomeBtn.addEventListener(MouseEvent.CLICK, onBackhomeBtnClicked);

    }
function onBackhomeBtnClicked(evt:MouseEvent) {

        homeScreen = new HomeScreen();


        stage.addChild(homeScreen);
        parent.removeChild(this);

    }

this is what i have right now, i added parent.removeChild because it won't remove when it is just removeChild ... and because of that i added stage.addChild so that home screen will show up properly.

but then when homeScreen shows up the button's don't actually work ... so its just showing a dead movieclip. why is that???

i also tried to put the onBackhomeBtnClicked function in main.as thinking so that all the homeScreen functions are there and maybe the buttons will work... but in that case i cant even get the screens to remove and add properly

Where are you adding `LivrmScreen`? That is, what is the parent of `LivrmScreen`? — puggsoy, Aug 10 '13 at 01:15

score 1 · Answer 1 · answered Aug 10 '13 at 06:24

There's a flaw in your code logics. I don't want to go too deep into the OOP principles or tell you to use frameworks that takes care of these kind of things.

Here's a cheap and fast way out:

in Main.as

private function goToLivrScreen(e:Event = null):void
{
    var livrScreen:LivrScreen = new LivrScreen();
    livrScreen.addEventListener("onClose", onLivrScreenClose);
    addChild(livrScreen);
}
private function onLivrScreenClose(e:Event = null):void
{
    removeChild(e.currentTarget as DisplayObject);
    // add code to show main menu or whatever you wanted
}

in LivrScreen.as

backhomeBtn.addEventListener(MouseEvent.CLICK, onBackhomeBtnClicked);

and handler

private function onBackhomeBtnClicked(evt:MouseEvent):void
{
    // remove all listeners from all object that you have so your LivrScreen could be garbage collected
    // when done just dispatch the Event that Main.as is waiting for
    dispatchEvent(new Event("onClose"));
}

This is a pretty crude way to do it and there can be many improvements, but it will make your code a little cleaner and hopefully, more scalable in case you want to add new screen or change some implementation.

if this answers your question, please mark the question as answered and vote it up so others with same problem could see the solution. Glad I could help, good luck ;) — Creative Magic, Aug 11 '13 at 01:26

remove this child and add new child AS3

1 Answers1