Will a DisplayObject be garbage collected if the only reference keeping it in memory is set to null, but it's not removed from the display list?
View 1 Repliescan a loader get removed (garbage collected) whilst its still loading? does it have to be added to the stage or to an array?
View 3 RepliesI was thinking about Flash GC the other day and came up with a question about how reference counting would work in the following 4 class scenario (assume GuiMain is the movie's document class):
[Code]...
I just noticed a strange behaviour while looking at my application in the Flash Profiler. When I click a button in my TitleWindow then the TitleWindow doesn't get garbage collected after it is removed. I have no idea why that is happening.[code]...
View 2 RepliesI have checked and rechecked, and I do not know why these "buckets" aren't being killed when I run the reset menu function, a fresh set of eyes could really help.
Code:
package com.Views {
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.events.Event;
[Code]...
i'm sure there are a lot of problems, but the only one I care about is destroying those buckets. inside the buckets, I have a listener for "removed from stage", and that kills all the listeners, etc, inside the buckets.
there is a Class A, it has a timer which updates its x position periodically. So all the instance of Class A will update their own x position. There is another Class B which extends Class A and overrides the function which updates position to change y position and call the trace function.
Now what I do now is create two instance alpha1, alpha2 of Class A and other two instance beta1, beta2 of Class B.
- alpha1 is only instantiated, but not added to the stage.
- alpha2 is instantiated, and there after added to the stage.
- beta1 is only instantiated, but not added to the stage.
- beta2 is instantiated, and there after added to the stage.
- let say after few seconds, I remove alpha2 and beta2 from stage.
Now suppose the GC fires collection, who all would be collected ?
Does the impact of event listeners on resources persist after their targets are temporarily removed from the display list? What about when mouseChildren is set to false for their container?
View 1 RepliesI have that function in the class:
private function fireItemCreated(data: ByteArray): void {
setTimeout(function(): void {
var event: ItemCreatedEvent = new ItemCreatedEvent(data);
dispatchEvent(event);
}, 1000);
}
This function called to dispatch item created event when image thumbnail created.But it delays event on some time to prevent user interface freezes. And I'm guessing what could be happen if garbage collector executes after fireItemCreated function call but before timer event. Does the closure will be removed or it stays until it will be executed?
I'm trying to set up a test that will tell me whether a variable exists in memory or not. I'm running into the problem of my nested function preserving the local variable it uses, called "shouldBeDead". Here's my best effort, which doesn't work for me because the "shouldBeDead" variable is still alive[code]...
View 4 RepliesI recently posted on here about tweening in alphas of thumbnails that I was adding to a movieclip. It seems that the tween is getting garbage collected because not all of the thumbs fade in all the way. I have the tween defined outside of the function, but it is tweening a loader that is created within the function. Could this cause the tween to get garbage collected? if so, how do I fix it?
Here is the pertinent code:
var thumbTween:Tween;
var my_thumb:Loader;
function thumbLoaded(e:Event):void{
[code]...
I have had a few complications with syncing the notes coming down, then I realized tweens would be the best way to go, so I chose them.The problem is; the notes come down the screen. If there is any lag in performance, any note that is on the screen freezes on the spot, and the new notes come down, and stay in sync.This is telling me it's something to do with the tweens. The timeOuts I have set work fine for spawning notes at the right time, but the tweens are freezing on occasion, Im guessing because the timer for the tween keeps going, but flash does not notice it.Here is the code for adding the notes:
Code:
var myTween:Tween;
var timeWindow = 1;
[code].....
If you're removing a MovieClip from the display list, and that MovieClip in turn has child MovieClips which have their own event listeners, is it necessary to remove ALL listeners from the child MovieClips? or just the parent MovieClip that is being directly removed from the display list?
View 2 RepliesConsider the following segment of code:
[Code]...
Do not worry about the syntax of this code. Here is my concern - The loader object which is used to send the HTTP request and which has the onLoadComplete event registered to is not referenced from outside the loadSomeContent() function. Is there a possibility that the loader object will be garbage collected and loadCompleteHandler() will never be called?
i've list-based components. when i no longer require them, i just use removeChild() method. i've applied setStyle() method to them. i'm a bit consufed, do i really need to use clearStyle() method or without doing it, flash will take them in garbage collection?
View 2 RepliesThe REMOVED_FROM_STAGE event is fired before the object is actually removed from the stage. I'm looking for a performant way to know when the object is finally removed.
View 3 Repliesafter strolling through the internet looking for garbage collecting of dynamic movieclips i conceded and justified to myself i should make a forum post.I'm making a small game, with many many explosions. Explosions are random swfs which i cache before using them. Problem is that although i did everything to make them ready for garbage collecting, they seem to overflow the memory.my code:
Code:
package
{
import flash.display.MovieClip;[code]....
the last line, 'e.target.parent=null ', is the way i know how to make movieclips ready for garbage collecting. But if i uncomment the line, I get this error:
Code:
ReferenceError: Error #1074: Illegal write to read-only property parent on example03_fla.MainTimeline.
at Explosions/::doneHandler()
at flash.events::EventDispatcher/
example03_fla is the timeline of the supposed movieclip i'm trying to delete, not the document fla.
I have begun on a list: My reference is null!Stage is null! Convert this code from as 2 to as 3 for me! Crossdomain policies are in the way of my cool idea Dynamic property names I need to use stuff on the parent! I don't want my children to scale when I scale the parent! Classes vs instances. Mod note: I do not want this topic pinned, we will use a fresh topic once we have agreed to the content.
View 9 RepliesIf you have a variable that is a MovieClip, Sprite, String, Number, int, uint, or a Boolean, do you remove it's reference by adding:
myVariable = null;
OR delete(myVariable);
I have a question about garbage collection in AS3. Let's say that I create a simple class, Item and link a movieclip in my library to this class. Now, in my main program, I create an array of Item's as follows:
Code:
var problemArray:Array = new Array();
function myTest()[code]....
Have the three references in the array that point to the three objects been deleted??? I made sure to set weak referencing on the event listeners that I attached, so I would think they would be marked for garbage collection. I am used to working in C++ so I usually delete all of the items myself and use a destructor in my classes, but since flash uses the garbage collection, I can't even seem to see what the reference count is to even know if my objects are marked for garbage collection. My thought is that an array is just a space in memory and if I set it to null, that space should be deleted, but I'm not sure if it is truly deleting these references or not.
Will a self reference prevent garbage collection?
eg:
Code:
public class Foo
{
private var _self:Foo;
[code]...
Will the instantiation of Foo be garbage collected after f is set to null, or will it's self-reference keep it in memory?
I am implementing garbage collection within an AS3 app. In one part, several display objects are created within a loop like so:
for(var i:uint = 0; i <= this._exampleVector.length - 1; i++)
{
this._customText = new CustomTextObject(this._exampleVector[i].playlistText), this._customTextWidth);
[Code].....
When I try to make the _customText within the _customTextVector null, this does not work. It only makes the index inside the Vector null. how to do this or another method to garbage collect?
I have an issue with Spark Lists whereby I am trying to ensure that an item is always selected and ensure that the GUI displays this to the user.
The application (full code below) creates a List, a Label and a Button. The Label states what is selected in the List. The button removes the selected item. Changing the selection, updates the text in the Label. Important: The List has "requireSelection" set to true to ensure that an item is always selected.
If I select the first item in the List, the selection is correctly reflected in the label. Clicking "Remove" removes the item and the next item is selected. This is all working correctly.[code]...
I read some articles about ActionScript's weak references. There are two types.
Trick with Dictionary class.
EventDispatcher class.
I expected weakly referenced object to be disappeared immediately when last strong reference removed.(regardless of GC behavior) But those tricks didn't work like that. The object referenced only weakly still live a while, and looks disappear when next GC time.Removing all of strong references didn't make weakly referenced object to be disappeared from object graph.(I know it'll not be deleted immediately)
I have some MXML elements which i would like to remove and add to a parent element. Unfortunately I am constrained to removing the MXML object as this is handled by the custom component. So is there any way to reinstate a removed MXML element back into the display list?
View 1 RepliesI'm developing a touchscreen application in AS3, and I havesome problems because the applications reaches 1,5 Gigabyte ofmemory if it's keep running for an hour.this memory size is because I show some videos in streaming,one after another (not in the same), and then they are not garbagecollected: I set the references to the videos to null and I removethe listeners, but flash seems to keep them in memory. I tried todelete the code section about the videos, and I have no problemswith memory (I also load some external images with the videos), soI'm pretty sure they're guilty in some way...I read that there's a bug in flash so displayobjects are notgarbage collected even if you remove the pointers to them: is it
View 1 RepliesI've been in a trouble with "removeChild" for a while. I know there must be some great discussion around but just could not find some nice posts in details.
View 2 RepliesAnyone know if there's a way to check for objects in memory that have been removed from a display object but not set to null?
View 1 RepliesI have tried to fix this error but I just cant get it to work.
View 2 RepliesI am using this collapsible panel - link. Unfortunately, I have a problem using it with application states. I have a state where this panel is visible, when I switch to this state, this panel shows, when I click on it, it opens and its content shows. If I switch to another state (this panel is removed from display), and then switch back to the previous state, the collapsible panel stays open, but its content disappears. In other words, the collapsible panel's content doesn't persist through states. Anyone know what the problem is? Or is there another collapsible panel that can work around this issue?
View 2 Repliesif i have a movie clip with an even listener attached to it, is the event listener being removed automatically when the movie clip is removed from the stage or should i always remove the event listeners manually?
View 4 Replies