I am a flex programmer but i had nothing to do for handle manage memory in my projects. I think lack of memory management is reason for loading lag of swf file. Can any one help me to how to handle manage memory in flex/ as3 codes.
View 1 RepliesI was recently profiling my application that uses Degrafa States in the skins and noticed that doing so uses more memory than I expected. Between the SetProperty and State, they were using about 10% of the total used application memory.
Would it be better to use css for the state changes and a new skin for each state? or Are there some simple tips to reducing the memory footprint of degrafa?
I'm making an isometric game and I need to know which takes less memory for scrolling, making everything invisible that you can't see? Like if(!this.base.hitTest(worldHitter))this._visible = false; Or would it be better to remove the movieclips unseen and then reattach them when i should see them?
View 2 Repliesthe Flash Virtual Machine relies on garbage collection by using reference counting and mark and sweep (for good coverage of these topics, check out Grant Skinner's article and presentation). And yes, Flash also provides the "delete" operator, which can (unfortunately only) be used to remove the properties of dynamic objects.
What I want to know is how to make it so that Flash programs don't continue to consume CPU and memory while running in the background (save loading content or communicating remotely, for example). The motivation for this question comes in part from Apple's ban on cross compiled applications (in its SDK 4) on the grounds that they do not behave as predicted with the multitasking feature central to iPhone OS 4. My intention is not only to make Flash programs that will 'pass muster' as far as multitasking in iPhone OS 4, but also to simply make better (behaving) Flash programs.
Put another way, how might a Flash application mimic the multitasking feature of iPhone OS 4? Does the Flash API provide the means for a developer to put their applications to 'sleep' while other programs run, and then to 'awaken' them just as quickly?
In our own program, we might do something as crude as detecting when the user has been idle (no mouse motion or key press) for (say) four seconds:
var idle_id:uint = setInterval(4000, pause_program);
var current_movie_clip:MovieClip;
var current_frame:uint;
[code]....
what's the best way to detect that an application should be shelved? And, more importantly, is it possible for Flash Player to detect that some of its running programs are idle, and to similarly shelve them until the user performs an action to resume them?
This blog (and others) state that you should set object references to null inside your dispose() methods when cleaning up objects. However, Actionscript 3 (with Flash Player 9) uses mark and sweep to clear out circular references for you. So I am wondering: is there really any reason to null out your object references?
View 2 RepliesI previously asked about some FLV files that I was loading externally, and having trouble with memory being released. Having sort of solved this, I am having the same problem with loading external resources and then getting them to be cleared out of memory when I'm done with them. I have seen kglad mention more than once that GC in flash 9.0.124.0 is broken, but where does that leave us? I have also tried my project in FP 10, and the memory still continues to go up and up. If I load an external resource - in this case I have a class that builds a VR room with papervision - and then close it, set it's instance to null, my memory never goes down.
This is a total guess, but could it have anything to do with using Tweener in my project? Is there any way that the Tweener class could be keeping some of my objects in memory and keep them from being GC'd? I am using weak references in my listeners, setting any variable I can find to null... I can get over how frustrating this is to just see memory go up and up but find no reason. The class I am using also uses a few subclasses to build itself, but I end up with one instance of my VR on the stage. If I have set that instance to a name - myVR - and then removeChild(myVR) from the stage and set the name to null - that should do it right? Boy, this is frustrating.
I have done a lot of searching / reading to find out how to clear my memory. But I still can't really work out how to clear the memory, it just never seems to come down. I have a few MovieClips that contain other MovieClips with pngs inside them being added to the stage.
As fare as I can tell all Event listeners are removed and refrences I remove the clip, with removeChild I "null" the variable I am using the "LocalConnection()" hack to try and force a clean up, but no movement on the memory count. Are there any examples of a *.png being added and removed from the memory?
I've been trying to figure out how Flash does its memory management regarding object declarations but haven't found anything that describes declarations themselves. [code]Basically I want a pool of declared variables that get instantiated only when a certain type is set. I'd have logic in other functions that figures out what the type is and then does certain things to it, but for now I just wanted to know what kind of memory management Flash does with something like this. Does it do nothing until I actually instantiate it (= new Object()) or will space be set aside once I simply declare it (someObj:Object)?
View 2 RepliesIn AS3, after I've removed a display object container B from another display object container A and deleted all the references to B in A, does that mean that all memories previously held in B will all be released too or do I have to manually delete all the references to objects in B before I can delete B in A in order to free all the memory space held?One more question. I was kind of confused of when to use the delete statement and when to set a variable to null.
View 1 RepliesHi guys, I'm wondering whether any of you have any opinions on whether you instantiate a Loader into an instance variable, or whether you declare a local variable to hold the Loader object.
I'm coming at this from a memory management / garbage collection perspective.
I only need the Loader object to load the file and register the event listeners. So I don't really want an object-wide instance variable to hold this loader object (which is what Adobe does in most of their examples), since I can always access the loader.data through the event's target property.
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I'm developing an AS3 application which has some memory leaks I can't find, so I'd like to ask some newbie questions about memory management.Imagine I have a class named BaseClass, and some classes that extend this one, such as ClassA, ClassB, etc.I declare a variable:
myBaseClass:BaseClass = new ClassA();
After a while, I use it to instantiate a new object:
myBaseClass = new ClassB(); some time after
myBaseClass = new ClassC();
and the same thing keeps happening every x millis, triggered by a timer.Is there any memory problem here? Are the unused instances correctly deleted by the garbage collector?
My AS3 application basically does the following (pseudo code from main application class) 3 or 4 times by adding custom objects to stage:
_movieClipClassVariable = new MyCustomSpriteSubclass();
_movieClipClassVariable.addEventListener(MyEvents.READY, function(event:Event):void {
_hideLoading();
mcHolder.addChild(_movieClipClassVariable);});
_movieClipClassVariable.addEventListener(MouseEvent.CLICK, myClickHandler);
private function coverClickHandler(event:Event):void {
}
What is the right way to allow Garbage Collector to recycle _movieClipClassVariable after it is not necessary? Assign null to it? Remove all listeners? Use weak reference for listeners?
I have a question regarding AS3 memory management. Supposing I created an instance variable for a Class, in this case or type Sound:
public class SoundStore extends Sprite{
var s:Sound;
Then within various class functions I referenced this variable multiple times, each time I wanted to load in a new sound:
s = new Sound();
Am I correct in thinking that each time I created a new Sound I would be overwriting the previous allocated memory?
my understanding is that primitive types (uint, string, Number, etc.) of a class do not need to be set to null for garbage collection.
for example, i am not required to write this dispose() method in the following class:
package
{
//Imports
import flash.display.Shape;
[Code]....
if this is true, which i believe it is, what is the difference between objects of primitive types and objects of non primitive types concerning memory allocation?
I am planning to build a giant management system in Flex 4.0, and I just wanted to know what are some pros and cons of using 4.0 (or 4.2) over 3.5? Lighter components? Faster pipelines? What are some things I can look forward to when using Flex 4.0?
View 2 RepliesI wrote an application in flash AS3, and when I trace from flash the total memory usage of the total application is only about 9MB, But at the same time Task Manager Shows the memory usage as 110MB. Around 100MB difference.Flash Trace Method System.totalMemory difference of the Trace from the Beginning of the application to end of the application.
View 2 RepliesIs there any content management system (such as Joomla or Drupal) for Flash/ FLex websites?
View 1 RepliesIs there any content management system (such as Joomla or Drupal) for Flash/ FLex websites?
View 2 RepliesIs there any program or setting for "pointing" flash programs at my graphics card rather than leaving it to the processor and RAM alone? I am running a specific frontend software that is a flash executable- unfortunately it lags heavily on execution despite the fact that I have a very nice video card installed.
View 3 RepliesHaving installed Amara flash slideshow builder it failed to run stating my flash was not installed or out of date. I knew this was not the case but uninstalled and re-installed flash anyway. I tested it on the adobe site, all ok and also tested it on a couple of sites using flash. All ok. Same problem with Amara tho', not recognised.So downloaded SWF 'n slide, another slideshowmaker. It also failed to recognise any flash installed (with dialog).Following some research I downloaded SubInACL from microsoft and ran it to ensure all my permissions were ok, but seems they were ok as it hasn't changed anything. What do I do now? I'm kind of stuck, I really need a flash slideshow builder, but seems they won't run, why?
View 3 RepliesI am trying to learn Flash Professional from the CS5 Design Premium programs. I have the Adobe CS5 Design Premium Digital Classroom to go along with the programs. One of the classroom projects is to add TLF text to your graphics. But it doesn't work. I can get the Classic Text to work but this is no use to other lessons when most refer to the TLF text. Even one lesson file you open has the completed work that you are to refer to and the text is not showing up in it. I have Windows 7, Flashplayer 10, and ActionScript 3.0.
View 6 Repliesim new to CS5 but alot of my Action Script 3 tutorials and books require me to install it, (namely to create MovieClip files). My question is I intend to write software using flash that I can then sell commercially but im confused as to what licence I would need to do that? or if my CS5 licence would need to be valid for as long as I sell my software..... so far I have the trial version of CS5 Pro to continue coding but after reading this part of the user agreement (see below) it suggests that I cannot sell software with any 'output' files I produce during the 30 day trial... is this correct? what licence, if any, do I need to sell my flash programs created using CS5 Pro and will I need to keep it renewed once the program development is finished?
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I have a NetStream set up and it's supposed to listen for DRMAuthenticateEvent.DRM_Authenticate. When I give it an encrypted file (encrypted using software from drm-x.com), no DRMAuthenticateEvenet seems to be dispatched. The code looks like this:
[Code]...
I have both proxy and drm authentication types in there because drm was not working for me so I decided to try proxy. Am I doing something wrong? I got this stuff off of the Adobe reference pages, is there an easier/smarter way of going about DRM in Flex?
Can anyone explain me the difference of all and also an another question does Zend AMF support all these.
View 1 Repliesthe difference of all and also an another question does Zend AMF support all these.
View 2 RepliesI'm trying to develop a "virtual" video driver based on ViVi project example. It's virtual since it doesn't interact with any camera. It gets a video stream from a user program (C++) and also it acts as video driver for another user program (Flash) which displays the video stream.
So, if I have a /dev/video0. One program needs write frame to it and another reads one from. Is that possible? I need this because Flash doesn't recognize this camera, so I use a virtual driver as a bridge from my grabber (which uses the real driver) and Flash.
I am new to Flex. I am just wondering how to manage session and cookies for logging in, logging off in Flex? I am using Flex HttpService and Java servlet.
View 1 RepliesThis is somewhat of an unusual topic, but hopefully you guys will have a reply that will allow me to go on. I am working on a 2D game following an unusual workflow that is very much 3D based. The workflow is 3D based but the game is flat! This is very important: Graphics are flat images.
Here's the general question. I need a Flash library that loads and is able to deal with 3D models, orient them and convert them in various ways to 2D BitmapDatas. Do you know anything that can do this? To elaborate, I was thinking of the best possible workflows for myself and artists' needs and there is one that I would really enjoy but need serious help to break through. Here it is: Import a textured 3D model from 3DS Max or other similar tools, into Flash At runtime, orient the model the way I want and draw it to BitmapData as a flat 2D colored image. This image is what is supposed to be displayed ultimately. Ideally there shouldn't be a need to display the model at all; just like you can draw MovieClips into BitmapDatas without adding them to the display list. The 3D model is non existent to the user, it's only a workflow convenience for developers, it's a data holder as well as a means to reduce file size.
- Still at runtime, I have to be able to generate a height map: Basically a BitmapData entirely black with, instead of the real texture, a gradient along the 3D Y axis that would have the same 2D shape as the model under its current orientation (i.e. it overlaps perfectly with the flat 2D colored image we made earlier; let's call colored images diffuse maps.) Remember it's along the 3D model's Y axis: If it's a character and its orientation makes the model's shoulder have the lowest Y 3D coordinate while his hips are the highest, the gradient will start from the shoulder. (i.e. it's not always "feet to head", depends on the model's orientation.)
my friend and I are trying to make a GUI for a CD that autoruns when you pop it in your computer. Now my friend can write the batch files to autorun the swf, but i guess what I'm actually asking is how to run programs or batch files from flash by clicking on a button. We tried just useing the getURL AS to link it but it doesn't run it (kinnda makes sense now...).
View 2 RepliesHow do you know if your compiled SWF file has a memory leak?
Are there tools, a firebug setting, etc... to see if there is a problem? I cannot find much in the debug Flash player besides file size and loading time.
I have a large Flash application that I maintain and suspect that is using way too much memory so I wanted to measure the amount of RAM being used while it executes to find key areas to optimize.