I have a problem with my flash application because after a while that it is running, it eventually starts to slow down. My application involves something that needs to be replicated with the addChild() method. I've read some info on the internet which states that the cause of the slowing down or the lag in the application is that the removeChild() does not remove the child from the memory
View 2 RepliesI am trying to improve the performance of a mobile application and I am trying to trouble shot what part of my code/application is causing a performance problem on some mobile/tablet devices. The application has several frames, with anywhere from 3 to 15 event listeners in a frame. At first I was not removing an event listeners. Now I am removing the event listeners as the user leaves the page.[code]I was wondering could removing too many event listeners cause performance issues? Also, is there a an easier, more efficient way to remove event listeners?
View 1 RepliesI was just wondering is it faster and better practice to remove stuff that is invisible from the displayList.
e.g if i have 100 objects that sometimes are visible, sometimes are not. would removing the objects from stage give any speed boost compared to simply setting them visible=false;
I have a lot of the following warnings:Duplicate variable definition.variable 'elem' has no type declaration.Illogical comparison with null. Variables of type Boolean cannot be null.Will they affect the performance of my flash application? Will they affect the compiling time?
View 1 RepliesWe have an AIR application running on an Apple iPad, that occasionally experiences sudden drop in its performance. The frame rate drops from 60fps to 2fps and it never recovers from that. this is only reproducible on iOS 4, but never on iOS 5 - we've checked that on two identical iPads (generation 1)the performance drops occasionally, but always happens when we switch between apps - from our app to another and back very rarely, the performance drop also happens on first start of the app this performance issue does not happen in renderMode=CPU, but this mode doesn't work for us, because the rendering is ugly, especially on rotated bitmaps.
View 1 RepliesI have a flash application which consist of Grid Components, Button, Label, and Combo-box Components. All these components are used more than 70 times(simultaneously) with in the application. So Its takes too much of memory. So How can I test the memory usage of each component at the time of running. Is there any plug-in available for browsers to find the memory usage. I'm using flash CS3 and ActionScript 3.0. The application suppose to run in browsers.
View 4 RepliesI get a working application in Flash made that lets the user click to create blocks which subsequently gravitate towards the mouse. I made the exact same thing in Processing too, just to compare speeds.However, when I run the Flash version and add around 15-20 blocks, the framerate drops to 5-10 FPS.In the Processing version I can add ~60 with no noticeable slowdown. What's the deal, Flash?
Links to each version's source:
Flash version
Processing version
Here is the source for each in case you are a wizard and can help just by glowering at the code sternly and telling it to behave:
Flash version:
blocks.fla
import flash.events.Event;
import flash.display.MovieClip;
[code]....
I'm preparing to reorganize & refactory a Flash Builder application. The goals of the reorg are 1.) keep compile times for the part of the project I'm working on as fast as possible, 2.) keep the unrelated parts separate for code reuse. Goal #1 trumps goal #2 if there's a trade-off.
Currently, the app has assets in one project, core functionality AS3 in another project, and the MXML in a third project that links to the other two.
Would moving resources/code into swc libraries help compile time? What about compiling assets into an swf and embedding that into the main application?
I am using a custom Flex skin to create an active blur/frosted glass effect on the background of floating Panels, TitleWindows, and other containers (similar to http:url....). There is a background image in the Application skin, and potentially any number of other components above and below the active blur component. Here's some relevant code within the skin:
public static const BLUR_FILTER :BlurFilter = new BlurFilter(16, 16, BitmapFilterQuality.HIGH);
private var _bitmapFill :BitmapFill = new BitmapFill;
private var _matrix :Matrix = new Matrix;[code]....
Unfortunately, the performance of this when the component is being resized, and especially when moved, is poor. There is noticeable drag delay and overall slowdown, and this is with only one popped-up TitleWindow in the test application. There is especially poor performance when components inside the TitleWindow are changed (button hover states, etc.)I've attempted to optimized a little bit by avoiding reinstantiation of the blur filter, bitmap fill, and matrix, but this has had little or no effect. I removed the blur at one point, just drawing the Application to a bitmap, and the performance is still poor, so it's clear that it's mostly the BitmapData.draw() call.
I've read about using scrollRect and cacheAsBitmap, but I'm not sure where to apply these properties (or other optimizations I'm not aware of) within the Application or its components.
We have a typical Flash+J2EE application that makes multiple requests from client to server (over Flex remoting), which is taking quite a long time on some client systems (and hence results in poor application performance on such systems).
Now, suspecting issues with network connectivity (latency) on such client system(s), we need to identify how far does it contribute to the slow response of the application (rather than performance issues in the application itself).
So, what are the best way(s) to diagnose this on a client system (Windows)?
Note that we have tried profiling our application, which does not indicate bottlenecks there, so we just need to clearly identify the possible network issues.
I have a setup where I'm handling the enterFrame event of my application. In the handler, I draw two rectangles (one fullscreen, one small orbiting one) using the graphics member of an mx.containers.Canvas object.
After a few minutes of execution, the app slows down substantially. Given enough time, it will come to a lowly crawl. I get the same result regardless of release/debug build on chrome, IE, and Firefox using Flash Player 10.1. Presented below is the Flex project in question:
ActionScript Code:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="..." [code].....
I had to replace namespace URIs (with "...") since i can't post URLs yet.
I am almost finished with this flash game, but when I test it the game slows down overtime. I've read the script over and over. Tried to comment parts out of the script, but it still slows down.[code]...
View 1 RepliesWhy flash slows down while drawing API(?) Is there a way to avoid it from slowing down. Heres just a random script of what i mean.[code]...
View 3 RepliesI am using the Camera on Flash, but when I finish to use, now can I "destroy" the camera object for improve the application performance?
private var camera_atual:Camera = Camera.getCamera();
private var video_camera:Video = new Video(820, 546);
camera_atual.setQuality(0,100);
camera_atual.setMode(550,480,30,true);
video_camera.attachCamera(camera_atual);
this.palco_mc.addChild(video_camera);
I am working on an Adobe AIR (2.0) application that contains a feature to allow users to print documents (such as salary slips). Those documents are originally in PDF format. Due to circumstances we cannot directly display those PDFs in the AIR application (for example using flash.html.HTMLLoader). Therefore we convert the PDFs to SWFs (using the pdf2swf tool, see The SWFs are loaded into the application using a mx.controls.SWFLoader, like so:
<mx:SWFLoader
id="salarySlipImage"
loaderContext="{someLoaderContext}"
[code].....
this is what i'm trying to accomplish; With a click on a movieclip (cannon_mc)a shot is being fired (ball_mc)
The longer mouse is down, the speed of wich the ball is fired with should increase.My question to you is;
What is the most efficient way to accomplish this? With a timer or something like this;
[Code]...
Im having a problem with .mov files. When i export my flash into a .fla file, it runs fine, but when I export it as a .mov file, the video sequence gets much longer, slower, and seems to be missing a lot of frames in between. It's all out of sync with my music and it makes me very frustrated.
View 1 RepliesI'm devloping some library classes for flocking/steering behaviours on large numbers of objects (2000+). I'm finding that at < 500 instances, performance is reasonable. As the numbers increase, framerate bogs down.
I've seen remarkable performance with libraries such as Flint or Box2D with ridiculous #'s of particles / objects, so it should be possible to optimize / refactor my code to be a bit better.
I'm aware of the basic optimizations, such as bitwise operations and optimized for loops. Are there any more fundamental approaches I should be considering? For example, currently each instance is a vector-based MovieClip. Would working with BitmapData be more efficient?
Will I take a big hit in performance using nested ViewStacks? Should I strive to handle all navigation in one ViewStack and push children manually or will the affected performance be negligible?
eg.
<viewstack>
<tabnavigator />
<tabnavigator />
<tabnavigator />
</viewstack>
We have a medium size Flex 3.6 application that contains around 20 different page views (managed via a single lazy ViewStack) each having multiple components. Most use custom renderers.All model data is loaded at startup and changes to model instances are communicated via binding and/or collection change events.Once the user has viewed each page at least once, all page views are instantiated and happily listen to update events.Which in effect means that each time a model instance changes, all interested views receive that event and compute derived data or trigger item-renderers.I have tested and confirmed this behaviour in a proof-of-concept application. Even when setting a list to being invisible, it still listens to collection change events and invalidates any renderer affected.What would you do?
View 1 RepliesI have flash cs4 and when I am typing code in the editor. It appears that the more code I add to my .as document, the more sluggish it gets. When typing, it appears to be a delay for when my text actually appears on screen. does anyone know what this could be.
View 4 RepliesI'm trying to build a conditional statement that will addChild and removeChild at different Timer Delays. Before I go any further, I thought, I should mention that I'm usinig TweenMax to ease the alpha of ease Child from 1 to 0 and back during the process to imitate a fade-in/out.
I'm getting issue with only one line - inside a conditional statement.It's running "OK". The movie runs as I want it, but the remove/addChild transitions are not at the speed I want it at. I am getting an error message in the output, but other than that, the movie runs fine.
stop();
import com.greensock.*;
import com.greensock.easing.*;
import com.greensock.plugins.*;
[code]....
My Flash game targets 24 fps, but slows to 10 on slower machines. This is fine, except Flash decides to throttle the queue of incoming MouseEvent and KeyboardEvents, and they stack up and the Events fall behind. Way behind. It's so bad that, at 10 fps, if I spam the Mouse and Keyboard for a few seconds not much happens, then, after I stop, the game seems to play itself for the next 5 seconds as the Events trickle in. Spooky, I know.
Does anyone know a way around this? I basically need to say to Flash, "I know you think we're falling behind, but throttling the input events won't help. Give them to me as soon as you get them, please."
I have written a basic piece of code to load and unload different swfs, now on their own they're pretty smooth (opened independently) , but when you load and unload them a couple of times in the main fla, just like as a user would navigate through a website, it causes the whole flash player and the movies to slow down quite dramatically and looks very bad as if about to crash. Now i know this problem was reported in FP 9, but anyone else has encountered this in FP 10 as well ?
Here's how i load and unload the external SWFs using buttons :
Code: Select allbt1.addEventListener(MouseEvent.CLICK,onLoadClick);
function onLoadClick(evt:MouseEvent):void
{
[code]....
We have created an interactive Touchscreen using flash CS4 - [URL]
The Touchscreen is already in the showroom. Every morning it is restarted. By midday the whole application slows down to the point were it becomes very slow. I presume this is a caching problem. In order to resolve this we close down IE and restart it (playing the SWF file through Internet Explore on full screen mode). Once it has restarted it plays at the correct speed.
I have thought about setting up windows 7 to reboot IE and have the flash file restart every few hours however a client may be navigating through the display when it reboots it self. I would prefer to avoid this if possible.
Working on my website - I notice it works on the first run, But if i go back into my menus and gallerys it slows down and down.[url]...
View 4 RepliesMy actual project I need a event configuration wherein I can hold a keyboard key down and move mouse. While trying to implement this, I recognized that the flashplayer begins to lag, saving actions in buffer and playback them when the KEY_DOWN event is already over...
For example I have a
PHP Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler, false, 0, true);
And in the handler I got only this:
PHP Code:
private function keyDownHandler(event:KeyboardEvent):void {
if (event.keyCode == 88) manoverDrive = true;
}
I also do have a
PHP Code:
stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
In this enterFrame I do animation for a movieclip that is animated regarding the mouse and keyboard action and events. Now when I hold down any kind of key the animation of this moviclip gets slown down if I hold down the key for 10 seconds and then lift the keyboard key the mouse movements I made before gets somehow saved and the animation got a playback of the mouse movements. I removed the keyboard eventlistener and the behaviour stays. Is that an official flash player Bug?
I am making a demo where an object is moved around the screen with a line tracing its movement. The speed of this noticeably slows down over time. I tried it both with an enterFrame and by setting an interval. I imagine it has something to do with the graphics class vector drawing and garbage collection. Here is a simplified version for demo/testing. If you run it you will see the line drawing slow down over time. Is there a way to achieve it without the slow down?
I read somewhere of a technique where you use the bitmap data class to draw on a stage-sized bitmap.(I've never programmed the bitmap data class before).
Here is the code:
code: var lineX:Number = 100; var lineY:Number = 100;
var deltaX:Number = 10; var deltaY:Number = 10;
var lineDrawing:MovieClip = new MovieClip();
this.addChild(lineDrawing);
[Code].....
Does anyone know what would make a movie slow down the longer it is open. Theres nothing that I can think of this is constantly running, but after about 15 minutes of the website being open it slows down almost unresponsive.
View 10 RepliesI did the following code. I know it's horribly written, but it's only a box with two combo boxes and a textinput bellow being added to a VBox, whose id is "garage". The problem, is that, however I do it, when I open the combo box the program slows down so much it's unbearable to use it any longer. I'd like to know if you have any idea on what's behind the ComboBox and the possible causes for this "slowing down" when I open the ComboBox..
[Code]...