Flash :: ActionScript 3 Handle Asynchronous Callbacks?
Jul 11, 2011
I have a piece of code in my game which looks a lot like this: MultiplayerAPI.createGameRoom(function(){ successFunction(new Object()); }); Basically, the createGameRoom is performed and, upon success, the function I passed is run. However I've been running into some strange bugs recently and I'm wondering, is the instance of "new Object();" the same each time the callback function is run? It needs to be a different, fresh instance of Object each time, but I'm having some garbage collection issues which make me think it's passing the same object each time that event callback is fired,
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Feb 6, 2010
I'm creating a scrollbar gallery from a tutorial on this site. Though I've completed the tutorial, and customised the gallery to my own needs, however I'm trying to make a very small change to it - and no matter what I do, keep running into problems. I'm trying to replace the rectangular handle with my own customised handle - a (20 x 20) 'circular' png image that I've imported into Flash, made a graphic and stored in the library (though I understand it can be imported using actionscript, like the other images in the gallery).
[Code]....
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Jun 26, 2009
Is there a way to query an embedded flash element to determine the available methods that can be executed on it via JavaScript?
Edit:
It appears that in IE it's as simple as
for ( i in flashNode ) {
alert(i);
}
After much clicking, they will be some of the very last members enumerated.
Still not able to determine this in Firefox though.
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Apr 14, 2010
How can we get data from the server in an asynchronous way in Flash? I am looking for something like XHR in actionscript.
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Jan 26, 2011
This may be a very basic question but I cannot work it out now. I have a 'flash banner' on my site for which once clicked on you go to another page on the site. I want to track this click as an event. HTML event tracking works fine. Previously the code I used was:
[Code]....
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Apr 15, 2012
So let's say I have the following code:
public function first(text:String):String {
_text = text;
dispatchEvent(event);
//after handler has finished transforming text.
return _text;
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Jan 23, 2011
Basically, I have a function that when called will display a menu of options that the user can click on. The menu is dynamically generated from the script and each menu item has it's onPress handler setup to call a dynamically generated function that which has access to the index of the menu item (or any other data I choose to pass it).What I would like to happen is that when a menu item is clicked on, the value is somehow passed back to the function (which built the menu), so that it can return it to it's caller. I've got everything but this last bit functioning.The approach I've tried is to give the onPress handler access to a field in the class which holds the menu building function. Then when it's clicked on, it can set the field to it's value. Meanwhile, a while loop in the menu function is waiting for the field to change, and will then return the new field value as it's result.
However, this doesn't work and the reason is obvious. Any sort of busy waiting while loop locks up the flash player. Therefore, it ceases to handle events and so the user cannot click on the menu item (or do anything else for that matter).What would be ideal is some sort of sleepAndHandleEvents function I could call from the while loop, but from what documentation I've searched, I can't find something like that. I've googled around, but so far I haven't found anything.The reason I want the menu selection returned from the function (rather than the usual method of using callbacks) is that it's called from some procedural code. I know I'm going a little bit against the paradigm of flash (which is mostly event oriented), but some things are just procedural in nature and I don't want to split my code into a million little pieces and turn it inside out.
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Jan 29, 2011
I have a function that when called will display a menu of options that the user can click on. The menu is dynamically generated from the script and each menu item has it's onPress handler setup to call a dynamically generated function that which has access to the index of the menu item (or any other data I choose to pass it).
What I would like to happen is that when a menu item is clicked on, the value is somehow passed back to the function (which built the menu), so that it can return it to it's caller. I've got everything but this last bit functioning.
The approach I've tried is to give the onPress handler access to a field in the class which holds the menu building function. Then when it's clicked on, it can set the field to it's value. Meanwhile, a while loop in the menu function is waiting for the field to change, and will then return the new field value as it's result.
However, this doesn't work and the reason is obvious. Any sort of busy waiting while loop locks up the flash player. Therefore, it ceases to handle events and so the user cannot click on the menu item (or do anything else for that matter).
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Jul 28, 2003
how to do callbacks on the same timeline (animation comes in and holds until next button is pressed, then leaves)But I am trying to figure how to do it with external MC's.I have been trying for quite sometime and I cannot get it to work. So I just erased all of my awful coding.
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Mar 4, 2010
I have an SWF file embedded in a larger html page.There's a fair bit of communication between javascript and actionscript so I'm using both ExternalInterface.call and ExternalInterface.addCallback in the actionscript code.Communication is all fine, except for one (common) situation on IE.If the user clicks within the SWF file and then resizes the browser window, calls from javascript to actionscript fail to work.Actionscript can still call up to javascript, but no return.If the user clicks inside the SWF, then somewhere else on the page, then resizes the window, nothing breaks.[code]All of those attributes are the callback function names.This happens with both IE7 and IE8, but FF is fine.
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Jun 29, 2004
When creating custom-objects, is there any way to set it's pathing? The problem is that it seems without a defined targetPath the object's callbacks are ignored.Here's an example:
class someClass extends MovieClip {
public function someClas() {
this.onEnterFrame = function() {[code]....
is there any way to set the targetpath? They all seem like read-only to me. One way to fix it perhaps is to place an object on the stage and use the as2 field to define it's class, but I prefer coding everything .If i make a movieclip using createEmptyMovieClip, it'll work (trace(this) shows say _level0.some_mc) ), but I want my custom classes..
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Aug 4, 2010
I need to write an application to asynchronously upload a file to a server.
Anyone have any examples or tips as to how I can do this?
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Mar 11, 2011
As my first Flash project of any consequence, I've created a simple banner animation that (basically) loops over a few different images, panning and fading in/out by setting the x,y coordinates, setChildIndex, and alpha. This was easy enough to code with an ENTER_FRAME event handler and a few state variables.Here are the most relevant snippets:
// Main
// XXX - Putting addEventListener() first would
// make some sense, but I would still have
[code].....
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Jan 12, 2010
what is synchronous and asynchronous call in flex. Why Httpservice is asynchronous and how to make a call to asynchronous call.
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Mar 22, 2010
sample for asynchronous file upload using flex filereference object
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Dec 21, 2010
I want to build a simple web 2.0 collaborative website using asp.net MVC2 or Flash and I want to receive events from a web based interface to a desktop AIR application. For e.g, someone makes a comment on a blog post, I want that information to be passed on to a desktop air application showing that a new comment has been made. What would be a good technique to receive asynchronous events?
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Jan 12, 2012
I have a simple accessor in my class:
public function get loggedIn():Boolean
{
var loggedIn:Boolean = somePrivateMethodToCheckStatus();
return loggedIn;
}
The API I'm now working with checks login status in an asynchronous fashion:
API_Class.addEventListener(API_Class.LOGIN_STATUS,onStatusCheck);
API_Class.checkLoginStatus();
[Code]....
Is there a way I can perform this asynchronous request without exiting my accessor?
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Aug 27, 2008
Is there a way to have a synchronous call to a URL to retrieve the HTML code? If not, is it possible to turn an asynchronous call into a synchronous one using some trick? I can't believe Adobe wouldn't implement this option. I tried looping until the result is back but then the status function never fires making my loop infinite.
ranting.turn("ON");
I'm a ColdFusion developer and recently started working on a project in Flex. I am getting more and more frustrated with AS and Flex lately. It seems that whatever I'm trying to do is either really hard or impossible while it usually can be done with one line of code in ColdFusion. I'm still learning these languages and I'm sure my lack of knowledge is the reason but for some reason I can't get ahead with my project. It looks like the learning curve is much steeper than it should be.
ranting.turn("OFF");
Anyways, here's my code for testing this functionality. The main application file looks like this:
Code:
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" applicationComplete="init()">
<mx:Script>
[code]....
This works OK except the function returns false before the HTTP call returns its result. If I un-comment the while loop the onStatus function will never be called and therefore end up with an infinite loop. Not sure why this happens.
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Feb 1, 2010
If I have one parent class that instantiates 5-10 different child classes, each of which need to load multiple assets etc, how can I check within that parent class to make sure all of the 5-10 children are loaded & ready to go before telling the program to continue?
The tricky part is that the exact number of those 5-10 classes that are instantiated is determined at runtime, so I can never be certain which I should be waiting on and which not to be waiting on. And just to be clear, these are different modules of sorts, not multiple instances of the same exact class.
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Oct 15, 2010
I'm currently able to record audio and video (from a webcam) to a Flash Media Server. However, in some cases users have a webcam with no builtin
microphone. In that case the flash client uses the default microphone with 'Microphone.getMicrophone();' and possibly selects the micrphone of the PC.
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Dec 21, 2009
I have created a client with Flex Builder which works in a browser but also in an Air windowed application. I must connect it to a server and it has to do asynchronous request related to changing data of the server.Because of the too much expensive cost of LiveCycleDS license, I was looking for other ways, maybe open source and i found the following solutions:
Adobe BlazeDS
Granite Data Services
WebORB Community Edition
I want to ask you which is the easy way to create the solution described above, expecially i want to use J2EE application server type.
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Aug 28, 2010
I'm developing a Flex application and am having some trouble working with asynchronous calls. This is what I would like to be able do:
[Bindable] var fooTypes : ArrayCollection();
for each (var fooType : FooType in getFooTypes()) {
fooType.fooCount = getFooCountForType(fooType);[code]....
The issue I'm running into is that both getFooTypes and getFooCountForType are asynchronous calls to a web service. I understand how to populate fooTypes by setting a Responder and using ResultEvent, but how can I call another service using the result?
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Oct 8, 2010
I have a recursive call which includes an asyn operation (file copy) .. I want to find out when the recursive call finishes (along with all asyn operations).
private function copyInto(directoryToCopy:File, locationCopyingTo:File):void
{
var directory:Array = directoryToCopy.getDirectoryListing();
[Code]....
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Mar 28, 2011
I have a flash site that calls a JavaScript function to track events inside of the application, the _gaq is already implemented in the section of the html and it works perfectly fine with one account:
function customTracker(clickEventName)
{
_gaq.push (["_trackPageview", clickEventName]);
}
but now my customer wants to include special events from 3rd party companies and needs these to track into a different GA account. Before I try this out on the live server I wanted to ask if this would work:
function customTracker(clickEventName)
{
_gaq.push(["_setAccount", "UA-XXXXXXXXX-X"]); // the regular account
_gaq.push (["_trackPageview", clickEventName]);
[code]...
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Sep 8, 2011
I am writing test cases to test function with flexunit 4. I am using aysnc method.
But when I add two or more asyncHandlers to the instance. I meet the problem: Error: Asynchronous Event Received out of Order.
Code snippets:
[Test(order=1, async, description="synchronize content on line")]
public function testSynchronizeContentOnline():void
{
var passThroughData:Object = new Object();
[Code].....
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Dec 6, 2010
In Flex, I'm making a set of asynchronous calls:
service.method1.send().addResponder(responder1);
service.method2.send().addResponder(responder2);
service.method3.send().addResponder(responder3);
I want to execute some code after all of these service calls have returned (either success or failure, I don't care which). How can I do this?
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Jan 15, 2012
I want to download a file in flex. Here is my desired flow User clicks "view" Code goes to backend and get the file as an array of bytes bytes sent from java to flex via a callback flex then opens dialog and user decides where to save the file Unfortunately the last part is not on a user event but on the callback from the server. When I call new FileReference().save(...) it tells me this. An alternative could be
User clicks "view" Flex shows user the dialog and user chooses where to save file Flex goes to backend requesting bytes of file bytes sent to flex and data is saved. For this approach I am unsure how I can make the save asynchronous from the dialog. I want the user to save a file but the data but come from an array of bytes from the backend
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Oct 8, 2009
A gentleman doing the sound track for the video I want to do on Flash has asked me what audio files Flash will handle? I have looked at Adobe and Macromedia and many other Flash websites and, of course, Flash itself, and cannot find any enumeration of what video files Flash handles, much less any mention of what audio files.
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Mar 9, 2010
I have an asp page that loads a response " user=exists " everytime I try to update a database record (when of course the record already exists!) How can I handle this response with AS3 in Flash?
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Aug 1, 2010
I feel like every time I need to use TextField or anything else related in AS3, it becomes a giant mess of code just for a few lines.I have tried using css as well for text but have encountered some issues where it isn't rendered the same on different servers/clients. Are there any text handling libraries that I don't know of or some other way to manage text in AS3?
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