ActionScript 3.0 :: Putting Loader In A Custom Class: Events, Returning To Main ... Asynch Challenges
Sep 14, 2009
I'm creating a custom class to retrieve some data using URLoader.My code is below, doing this from memory, plz ignore any minor typos.The challenge I'm encountering: when my custom class calls the loader, the event handler takes over. At which point the context of my code leaves the function and it's not clear to me how I then return the data retrieved by the loader. I sense that I'm breaking the rules of how ActionScript really runs by putting a loader in a separate class; at least, that's my primitive understanding based upon the reading I've done on this.So can I do this? I am trying to create a clean separation of concerns in my program so that my main program doesn't get clogged up with code concerned with retrieving remote data.
[Code]...
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Feb 2, 2010
I have a main class which listens for an event dispatched from another class say class A. Also there are other classes say class B, class C etc.There is a controller class.Classes B, C dispatches events that gets listened by the controller and works well.But the events dispatched by the Class A doesn't get listened by the main class.What might be the problem. Detailed Explanation of the problem.There is a main mxml file.
Class files are in:
ProcessInput.as
DBController.as
ShortMemDB.as ....etc
The main mxml file gets the input from a textArea. Sends the input to the capturedInput (input:String) function using set method which is in the ProcessInput Class.Now I need to dispatch events NORMAL, COMMAND depending on the input obtained after the processing, where I'm having problems. The reason is that if the event NORMAL is dispatched a particular function inside the DBController is to be called. If COMMAND event is dispatched then I need to call another function. This idea doesn't work since the events doesn't get listened.But the events dispatched by the CSDB class when listened by the DBController works well.
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Apr 1, 2011
I have a document class called Main.as In the class constructor I have the following listener:
enter code here
var listeningFORModeChangeToStudent:Sprite = new Sprite;
listeningFORModeChangeToStudent.addEventListener(TellAllModeChangeToStudent.STUDENT,exp);
addChild(listeningFORModeChangeToStudent);
[code]....
In a third class I make a call to the despatcher in the previous class:
enter code here
var ThisTellAllModeChangeToStudent:TellAllModeChangeToStudent = new TellAllModeChangeToStudent;
ThisTellAllModeChangeToStudent.tellAllModeChangeToStudent();
I have trace statements in eveything and from this I know the despatcher in TellAllModeChangeToStudent is being called.The problem is that the listener in the main.as is not calling the function exp.I cant see why and I dont know how to check if the listener is actually seeing the dispatch event?
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Jan 23, 2012
I'm using ActionScript 3 in Flash Professional and I'd like my class to raise an event, not a custom event but an existing one. I've set up my class so that it extends EventDispatcher. In the documentation [URL] the example declares a custom event by adding a static String variable:
class CustomDispatcher extends EventDispatcher {
public static var ACTION:String = "action";
I assume that enables:
dispatcher.addEventListener(CustomDispatcher.ACTION, actionHandler);
Or at least auto-complete when you've typed 'dispatcher.addEventListener(' into the Flash Professional IDE.
But lots of classes that raise events raise a mixture of existing noncustom events. For example if you have an instance of a flash.netFileReference and type
fileRef.addEventListener(
A long list of potential events to listen for is given including DataEvent.UPLOAD_COMPLETE_DATA, Event.SELECT, HTTPStatusEvent.HTTP_STATUS, SecurityErrorEvent.SECURITY_ERROR, etc.
If I want my class to be registered to raise those existing events, what code do I need? Preferably so that the IDE knows instances of my class may raise the event and suggests them in the addEventListener auto-complete/intellisense list.
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Dec 30, 2009
I have made a site in AS3.0 code and it's working fairly well but theres alot of things i'm trying to update to make the code a little more reusable. For startersI have a function that creates a little pop-up text when I roll over a button. The text is a class that I created in the Flash IDE instead of dynamically drawing it with actionscript.Here is the code for the pop up text instance called "enter_text" as it rolls over the movie clip "preloader_mc"
Code:
//add listeners to the preloader_mc movie clip on stage
preloader_mc.buttonMode=true;
[code].....
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Feb 11, 2011
I have a loader which loads on a MouseEvent.Click. It uses this for multiple swfs
Actionscript Code:
myLoader.load(new URLRequest(event.target.name + ".swf"));
How can I add a custom preloader to this?
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Nov 10, 2009
I'm trying to use a custom class to create a mosaic type of gallery, and load jpegs in which some may have different dimensions. I'm using the Loader Class and I can get the content width value of the jpegs I'm loading, but I'm having trouble adding that value to the property of the (custom) object. Here is the Class:
package {
import flash.display.*;
import flash.events.*;
[code].....
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Aug 24, 2010
I've been trying to create a simple loader class that loads an image file onto the stage.
Writing the code to perform the task is simple via the main timeline:
Code:
var picloader:Loader
picloader = new Loader()
picloader.load(new URLRequest("photo/1.jpg"))
[Code]....
How should I write the class such that it performs this function? Ideally I would like to specify the file I want to load eg. loadimage("photo/1.jpg") when I run the method.
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Jan 2, 2010
I have an <mx:Application> which contains a <mx:Module>. This module has several child modules. It also has some an instance of a class I have created. I am trying to have a method of this class dispatch an event that can be "heard" by the module and handled. This isn't happening.To be more clear, I am using 'dispatchEvent' to from inside a class method.There is an instance of this class in: mx.core.Application.myapplication.mymodule.myclassIt is the 'myclass.somefunction' that dispatches the event. I have a listener registered in 'mymodule'. Nothing happens when the function/method runs, however.
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Sep 5, 2011
I came to some misunderstanding how to use events. LOL. I thought I understand it but as I see I dont.
I've got a Engine document class where Hero is added, and Cannon object too. In body of Hero I need to dispatch event when Hero reaches some point or particularly a pitfall, so I've got static const string to handle it:
[Code]...
but this way I would end up with dozens of handlers in the Engine body class, and I am trying to minimize this class as it is big enough without those handlers. I am stunned and suprised, and I am noob again. Maybe someone will clear out how to get custom events working/... and why only instance of object that dispatches an Event can hear it (my case).
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Feb 16, 2012
I'm curious about event performance. I have a custom class that downloads files from a server and writes to your local system with AIR. This class has a few custom events that fire during a download process: File starts downloading, files finishes downloading, error occurred, progress, and a few others. This class was built for a specific project, but made coupled so it can be used for anything else wanting to download a file from a server. I'm starting to implement it into a new project, and a few events I'm not listening for, such as when the file starts downloading, or the progress of it, just the complete.
Does it strain overall performance having all the other events still dispatching, when I know they aren't being listened to? Would be be better to comment out the dispatchEvent() for the specifics I know aren't used, or does it even matter? There's obviously events dispatched throughout the SDK that aren't always listened for: Right click, drag, resize, etc. This makes me think it doesn't matter that these events fire but aren't handled, but since code is running and things are happening, that means there is performance going on.
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Feb 1, 2007
I'm having a problem with a custom subclassed Event class. Or I should say, I'm having trouble receiving events from this custom event class. I'm pretty sure I have everything wired correctly, the event is dispatched properly and my trace shows the Event instance being spawned. However, my eventListener, which is in another class, never fires its handler function.Have any of you run across instances where custom event classes fail to fire? I'm about at my wit's end.
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Apr 3, 2009
Would it be possible for me to also dispatch non-custom events (like Event.CHANGE) from inside a class? I already did this with custom events which worked fine, but when I try to dispatch a the Event.CHANGE it will tell me that I am trying to convert a String into an Event (??). What I do is:[code]
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Jun 5, 2009
I have a question regarding custom classes. I have created one named HrollBtns with a some scale and alpha roll over behaviors. When I load a jpg using a loader obj. Can I dynamically assign this custom class to the loader? If I had to do this loading an object from the library ...I would first assign the custom class through the linkage prop inspector and then simply add the Child(with my class behaviours) to the stage. Loading external files dont know how to do it...
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May 17, 2009
I've been trying to figure this out for the past couple of days and couldn't find a solution and Im sure its something I have completely overlooked on my part. I'm attempting to load in an external swf in my fla file using this custom loader class I created. I keep receiving this error in an attempt to load the swf, which is in the same directory as my fla file that is loading it:
TypeError: Error #2007: Parameter url must be non-null.
at flash.display::Loader/_load()
at flash.display::Loader/load()
at com.proj.load::SWFLoadClass()
at test_fla::MainTimeline/frame1()
Code from SWFLoadClass.as:
package com.proj.load {
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.Event;
import flash.display.MovieClip;
[Code] .....
Code in fla file:
import com.proj.load.SWFLoadClass;
var l:SWFLoadClass = new SWFLoadClass("colorPicker.swf", 0, 0);
addChild(l);
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Jun 10, 2009
If I load an external swf:
my_loader.load(new URLRequest("abc.swf"));
addChild(my_loader);
abc.swf starts playing - how do I get it to tell the main movie that it reached the end of its timeline and finished playing? Added bonus: the loaded swf is AS1 and the main movie is AS3. I'm not sure if I could convert the loaded swf to AS3.
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May 27, 2011
Using ActionScript can I do with my game, which is running in a browser, verify that the user already has the files needed to run the game installed on your computer? If he had these files do not need anything else that was born and can play the game immediately. If he did not have the files, they would be loaded so that the browser does not erase these files. So when he returned to play the same game day after,as the files already on your computer, nothing need be loaded.How do I remove one of the main memory image that was loaded using the Loader class? I tried using the unload () method but nothing happened.
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Aug 4, 2011
Im a complete beginner in Flex programming. I have an application with a main .mxml file, and a certain class Foo that I call from the .mxml. In Foo, I make a URLRequest and listen for the Complete event. Then I found myself with the returned data in a Foo function, but I have no idea how to communicate it to the .mxml part of the application ! I looked into ArrayCollections but I can't seem to understand how they work. Isn't there a way to modify, from inside the class, a variable with a global scope ?
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Dec 23, 2009
I had watched a CartoonSmart Tutorial on AS3, and the amount of code that goes into a button seems to much (especially coming from AS2). I tried to create a custom class to make my life easier for this, but... I ran into a snag.
Errors:
Code:
1046: Type was not found or was not a compile-time constant: MouseEvent.
I receive that error 4 times in these locations.
Code:
function ButtonClick(event:MouseEvent):void {
function ButtonRollOver(event:MouseEvent):void {
function ButtonRollOut(event:MouseEvent):void {
function ButtonDown(event:MouseEvent):void {
Here is my button_class.as file.
package {
public class button_class {
function button() {
}buttonVar.addEventListener(MouseEvent.MOUSE_UP , ButtonClick );
function ButtonClick(event:MouseEvent):void {
I am using Flash CS3 Professional. And when I have the class put directly into the main time line ( Copy and paste) It works perfectly, but not here.
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Jul 15, 2011
I have a problem with connecting as3 with php. I get the data return from php is wrong.
This is my code
AS3:
var file:String="test.php";
// Define global variable
function GetXMLfile(){
var loaderphp:URLLoader=new URLLoader();
var urlRequest1:URLRequest = new URLRequest(file);
loaderphp.addEventListener(Event.COMPLETE, GetCharInfo);
[Code] .....
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Jun 3, 2010
I want to clean up my main timeline by breaking it into 3 sections and putting each section into its own clip. My main timeline is then only 3 frames long with one clip on each frame. Of course, trouble is, the main timeline doesn�t wait for the first clip to play before progressing to the second. Do I need some code in the second main timeline frame to tell it to wait til the first clip has finished?
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Jan 23, 2012
my main timeline i have an intro, then a main menu. from that main menu it goes to a movie clip, i want to create a 'back to main menu' button inside the movieclip that will return to a certain frame in the main timeline.
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Feb 18, 2006
I've just come upon an idea, on how people could learn to write AS. Every week there would be announced projects that would have to be written in AS. There could also be levels of difficulty for different people.
After annoucing the task, for instance: "Make a dynamic slide show, that will load files from a XML file, and display them by fading-in / fading-out at some intervals". People could start writing something, and if someone would have any trouble, It could have been answered in the topic. After a week, the best working projects would be selected and added as a opensource, or mayby even converted into tutorials.
I know that my idea was allready made a hundred times, that was just an example. If the idea would pass, there could be a poll, or another topic for project ideas.
I think that it's an idea worth thinking about. I personally would participate in it, just for the challenge.
P.S: Im posting this here, because in other forums the topic could just die, w/o much people viewing it.
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Jul 13, 2011
I have an intro animation inside of a MC on frame 1 of my timeline, when it's finished playing the 100 frame animation I want it to jump to frame two of my main timeline.I've tried root and parent scripts at the last frame of the animation but it's not working. Do I need to add root to the package?Even gotoAndPlay isn't working
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Apr 26, 2009
Im trying to load some data, but I want to outsource the job of data loading to different classes.lets say XMLLoader class will get the url and return an xml file. The problem now is that such procedures are asynchronous, the class has to wait for XML to load and then call back the caller class and return the xml data.One way of doing this, is returning the data with a custom event. once its loaded then dispatch this event with the data in. However, I was wondering, if there is a way to do it with some sort of asynch call, meaning the caller class sends the request, then waits for a response.is such a thing possible? is there a better way or do I need to stick to my custom events?
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Nov 30, 2011
In ActionScript 3, there are some classes that will represent a value rather than the class itself. It's hard to explain properly what I mean, so take this example:
[Code]...
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Jan 23, 2010
I am new to AS3, as well as Flash in general, so forgive me if this seems highly elementary. All I am trying to do is create a custom class that extends the MovieClip class and contains a custom property of "marker". I want to be able to use and change the value of this custom property on the timeline for an instance of this class and have it behave just like any other (Ex: this.x ==> this.marker).
[Code].....
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Jun 16, 2011
I have a custom class being constructed from my main class. In the custom class it has another custom class that is passed in as a parameter. I would like to strictly type the parameter variable but when I do, 'the type is not a compile type constant etc'.This, I understand, is because the custom class used as a parameter has not yet been constructed.It all works when I use the variable type ( * ) to type the parameter.I suspect this is a design flaw, in that I am using an incorrect design pattern.It is actually hand-me-down code, having received a large project from someone else who is not entirely familiar with oop concepts and design patterns.
I have considered using a dummy constructor for the parametered class in my main class but the passed in class also takes a custom class (itself with a parametered constructor). I am considering using ... (rest) so that the custom classes' parameters are optional.Is there any other way to control the order of construction of classes? Would the rest variables work?edit)in main.as within the constructor or another function
var parameter1:customclass2;
customclass1(parameter1);
in customclass1 constructor:
[code].....
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Jul 18, 2011
let's say that i have this button which is called "Click_Here" and i added an event listener to it in some class file in order for it to run the event handler in a different one .. so it will be like this
classfile1.as
Click_Here.addEventListner(MouseEvent.CLICK , buttonClicked ) ;
classfile2.as
public function buttonClicked (e:MouseEvent){ trace ("hello");}
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Aug 5, 2008
I decided to turn this util into a class because I use it in almost all of my projects. Basically what it is is I import an XML file and it has all these HTML characters like & or and my function basically converts those strings of characters to its regular form ie: ['&' (&] or [' ' ( )]
so calling it in a FLA file would be something like this:
Code:
var entity:DeEntitizeHTML = new DeEntitizeHTML("bob & jim");
and here is my class file:
Code:
class com.dop.DeEntitizeHTML
{
function DeEntitizeHTML(my_str)
[Code]....
how to return that value back to the var entity in my FLA.
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