This is the scenario:
[AS]
// Assuming a lot more properties are added to all objects
var parent:Object = new Object();
var kid:Object = new Object();
var kidToy = new Object();
[code]....
Does making the parent object null recursively release all memory used by all subordinates in the hierarchy?
I don't understand the "heirarchy" of Flash Output Error Messages. For example: TypeError: Error #1009: Cannot access a property or method of a null object reference.
[Code]...
This error shows when I preview a SWF that calls en external swf. All the code listed in the Error Codes is contained in the external swf. In the TypeError -- where do I look for the problem code? bBrand_Gallery is a class description for the externally called swf. The externally called swf runs fine by itself. All functions in the package are declared as public functions. I know that the null object reference means that it's looking for the property of an object that is not yet instantiated. How do I find that object? Would it most likely be a variable that is not delacred publicly?
I believe the ArgumentError has to do with the fact that the DisplayObject in question is not "created" by the function startShow which includes the removeChild statement. How do I resolve that issue?? Is there a reference as to the best way to interpret these error messages?
This might be a dumb question. I think I already know the answer, just clarify. If you declare a object in varible1 and then pass the value into varible2. If you decide to null varible2 would that kill just the reference or the object itself as well. I want to say no, but then again, everything you do to the reference it self, also affects the space in memory.these are the 2 varibles in my class.
private var objects:Array;
private var viewableObjects:Array;
above are class varibles. Later on in my code I add an object to the objects arrayobjects[0][4] = new Enemy1();When i trace i get the following[object Enemy1]I then add it to viewable objects arrayviewableObjects.push(objects[0])
i am slightly confused about the parent and child relationship. lets assume we have several different instances, what would be difference of adding them all as children of the stage and creating a parent-child hierarchy between them(other than the access path).
View 5 RepliesI have a my project that has three frames on the main timeline.
Frame Label MovieClip Instance Name Class file
Intro_Frame -> Intro_symbol -> Intro_Page
Content_Page -> Content_symbol -> Content
[code].....
I have a class linked with a movie clip, and in this movie clip I want to be able to add an event listener that calls a function in the Document class (the class you link with the fla as a whole). How can I do that? Say the name of my document class is KPScript.as. In my GameController.as class, I want to listen for key input and call pageChange() in KPScript.as when it gets called. Would I have to import KPScript.as into the GameController.as? If so, I wouldn't want to create another instance of the KPScript object.
View 1 RepliesI am developing a complete AS3 based corporative website. Everything is nice and cool, except that seems to be impossible to release memory... I have read tons of articles referring memory management on AS3, and applied all the techniques on my code: I'm using weakly referenced listeners, removing them when I am done, setting to null all my objects when I want to release them, using the method unloadAndStop whenever I want to unload one of my external SWF files, disposing my loaded bitmaps using bitmapData.dispose()...
And no way, the memory continues increasing to infinite and beyond... One thing that calls my attention: If I minimize my browser and only on that situation, the memory goes down on my task manager to a reasonable amount.
Let's say I am loading a movieclip from a remote url within another movieclip on another server.
This movieclip now needs to load another child movie clip on the same server as itself.
How can it get its own url and not the url of its parent container so as to load this child ? Because if it refers to "child.swf" it will be relative to the super parent container insted of the first server isn't it ? So it will not be able to load the child correctly if all it can get is the url of the parent.
I have 2 class like following
ActionScript Code:
public class classB {
protected var mc : MovieClip;
public function loadImage() {
mc = new MovieClip();
var myLoader:Loader = new Loader();
[Code] .....
And after complete loading image
ActionScript Code:
objA.releaseMemory();
trace("system memory = " + System.totalMemory);
objA = null;
The memory doesn't reduce.
if I add a clip to the stage as a child and remove the parent and set the parent equal to null, does the child get collected and removed from memory? What if the child has an image loaded into it as its child?
In my application I'm loading a series of png images as overlays that can be tinted for customizing in this app. When I trace my memory, the basic app idles at 64,000 k. The exact second I load those overlay images it goes up to 205,000k. If I remove those clips and "clear" the stage I should go back down to 64,000 k if everything is removed and collected correctly, right? It's not, it's hanging at 215,000 k. Are my images being cached and that is the reason for the memory staying up? If so, how do I prevent that. Or upon removing the parent of the image how can I un-cache the image.
If a user switches between models and loads several different items then the application actually crashes the Flash environment because of too much memory usage. It also does the same to browsers.
The app is basically an animated character that sits on screen and moves around doing stupid little animations. Each animation (Talking, Dancing, Jumping, etc) is an individual Movie Clip made up of around 50 or so PNGs in sequence. I'm using CS3 to create the clips, and exported them as SWCs for use in Flex. When I addChild() the MovieClip to stage, memory usage increases, which makes sense. However when I use removeChild() on the same clip, and then add another clip, memory increases, and this goes on with every new clip... essentially leaving 10 clips in memory even if they aren't being played.
Now, first thing you are going to think is I've got a reference to the clip somewhere and it's not garbage collecting. Well, I'm using weak listeners everywhere, and I'm pretty sure I've killed every reference by NULLing out the objects. I understand Garbage Collection doesn't happen right away... but it never seems to happen. As a test, I wrote a really bare-bones app to attach and remove a clip to see if the memory ever frees. I've left the app running for a half hour after removing the clip from stage, and memory usage stays the same:
[Code]...
I created a Sponsorbar which dynamically adds sponsors according a XML script.
ActionScript Code:
for each( var imgPath2:XML in xdata.img )
{[code]...........
Im creating a simple flash presentation and i have created four buttons, what i want to now do is make each button go to a differant frame on the timeline, im guessing this is go to and stop? But i cant figure it out [URL]
View 1 Repliesmaking a scrollbar invisible until a button is pressed. (in actionscript)
View 2 RepliesI have searched on the Internet and didn't find any clue on how to do so, any idea ? I don't want flex only flash (my objects are not visual components).
View 3 RepliesIn Actionscript 3 is there any way to determine the precise display object hierarchy an event will traverse through when dispatched from a given object? The object is not necessarily a display object.Although I could imagine this actually being useful somehow, in my particular case it is a learning exercise. I'm trying to master the event system in flash and have some locations where I'm very curious what path an event will take when I dispatch it.
View 2 RepliesIf I set an Object = null, does that remove all references to the Object's variables assuming there are no external references to said variables? Or do I have to manually set all said variables = null?
View 4 RepliesI'm making a rather large flash project and so I'm concerned about memory usage. At the end of each section of the application I remove the overarching parent element that holds the content. Although this remove the parent, does this also free up the memory for each of the children contained within this, or should I run an iteration to remove those prior to removing the parent?
I'll give a little more explanation in-case I'm not expressing what I want:
addChild(movie1);
movie1.addChild(movie2);
movie1.addChild(movie3);
By using this code:
removeChild(movie1);
Does it remove movie2 and movie3 from memory or are they still stored, just unlinked?
the script i wrote is working fine. but the script attached to the flash player which i have no control over is throwing a script error (im using IE8).how can i fix this? if i run it locally there is no error.
'null' is null or not an object
try { document.getElementById("").SetReturnValue(__flash__toXML(function() { return document.location.hostname; }()) ); } catch (e) { document.getElementById("").SetReturnValue("<undefined/>"); }
but this is from flash script and i dont have control over it. it just say JScript - script block.
I have the following piece of code(part of a much bigger program). I this code I am re-using a motion that has been previously used successfully. The trace stmts are used to identify the exact location of the error and the error conditions as best I can.[code]
View 4 RepliesWhen you cast null to an object using Object(null), the result is an object.When you cast undefined to an object using Object(undefined), the result is an object.But saying null as Object or undefined as Object remains null.Why is this? I can't find anything in the documentation about this.
The objects that result from these casts can have properties set on and read from them. It's as if the cast created information, or removed whatever special information the null and undefined values have. But there's no indication in the AS3 documentation that the null and undefined special types are actually objects.
[code]...
and I dont mean this: (which removes the parent)
i found this scroller class but it has problems when the .swf started in a small size. in short.. it doesn't have any resize function. i would like to reload it but the parent is always null.
[Code]...
I am creating an object pool to cache some recyclable objects in memory at the outset of my application in order to avoid (as much as possible) the performance issues caused by GC running; if possible I'd like to minimize the memory my object pool reserves, so I'm attempting to pool generic forms of the objects (with no methods) and then casting the generic variants to more specific and complex object types which extend the generic form when I actually want them on the stage.
The trouble is that to do this requires the generic variant class to import/extend MovieClip (because the more complicated objects are themselves MovieClips and make use of DisplayObject methods)-- does simply importing and/or extending a class add to the memory an object takes up when instantiated even if it never uses methods from the inherited class? It makes sense that it would, and some light profiling seems to suggest that it does, but I'm not 100% certain. About how large should an 'empty' MovieClip instance be in bytes?
I am trying to add an EventListener to a MC, but I am getting the 1009 error. My script is referencing a MC that does exist. I have verified that my code is typed correctly, and that my instance names are correct.I am creating a portfolio site. On the first frame I have my main navigation (well, it's actually not the first frame. I alpha-fade everything in so it's really the 6th or 7th, but I'm not sure how pertinent that is). The main navigation works fine (5 movie clips, fyi). Clicking them will move to a different frame, and the information and sub navigation for the frame will fade up. It is the sub navigation that I am having trouble with.[code]
As you can see, it doesn't even get to the function before it gets thrown off. I have verified that the instance names are correct. The script and the MC I am trying to add it too [I/]are[I/] in the same frame, which is what's stumping me. Normally you get 1009 when the object you're trying to reference is not there, but mine is!!Obviously there is something wrong with my EventListener. I am not sure what else do; there is a gap in my understanding of AS.
I have a flex application with two objects: a parent widget (called an IBaseWidget) and a child widget (called a HelperWidget2).When the user clicks on a help link, a helper widget is loaded into the list of base widgets and then displayed for the user.However, when I try to access this child widget by casting the base widget in the collection to the child widget type,the child widget returns null and I am unable to work with the widget.The following snippet correctly returns the widget ID of the newly added widget and dispatches an event to load the widget:
var id:Number = WidgetManager.getInstance().getWidgetId("Helper");
ViewerContainer.dispatchEvent(new AppEvent(AppEvent.WIDGET_RUN, id, openQuickQueryCanvas));[code].........
The problem is that helperWidget above always returns null, meaning the cast isn't successful.
I have a movieclip with a class attached to it, so obviously i can acces it with commands of the kind this.* What i want to do, is delete the movieclip after some time (it's a bullet from a tank and I want it to be gone after explosion). I can removeChild it, but the code "this = null" doesn't work.Is there any way to get it out of my memory? Because now my application slows down and in 5 minutes it's unplayable...
View 6 RepliesI have a number of tabs which can be dragged around the screen.. I've constrained the movement to a rectangle using startDrag(false, rectangleName) but when I ROLL_OUT or MOUSE_UP outside of the constrain rectangle the tab does not register it, thus defining itself a new startX and startY once clcked on a second time..
private function tabOver(event:MouseEvent):void { event.currentTarget.scaleX = 1.05; event.currentTarget.scaleY = 1.05;}private function tabClick(event:MouseEvent):void { event.currentTarget.scaleX = 1.05;
[code].....
I'm currently having some trouble with referencing objects that turn out null on export. Basically I want the Document Class to run the code of another class that is the class of a MovieClip without having Error 1009 popping up everywhere in my output panel.
[Code]...
I declare this tween...
ActionScript Code:
private var _tweenX:Tween;
private var _tweenY:Tween;
I even fire it off it when the player hits a corresponding button...
ActionScript Code:
museumGuy.gotoAndPlay("Walk");
_tweenX = new Tween(museumGuy, "x", Regular.easeOut, museumGuy.x,categoryPaintings.x, 40, false);
_tweenY = new Tween(museumGuy, "y", Regular.easeOut, museumGuy.y,categoryPaintings.y, 40, false);
_resetAnimation = true;
As you can see I have some animation stuff in there. I need to stop the museumGuy from doing his walk animation when the tween is over so I have this on the EventEnterFrame function I set up.
ActionScript Code:
if (_tweenX.isPlaying == false && _tweenY.isPlaying == false && _resetAnimation == true)
{
museumGuy.gotoAndPlay("Idle");
[code]...
how I can stop that? In my Init() I tried to state...
ActionScript Code:
_tweenX.isPlaying = false
but it doesnt like that either.I could fire off a tiny tween as soon as the app starts that doesn't last long enough to notice,but I really want to get a hold of how to control it.
