ActionScript 3.0 :: Creating A Custom Event Class?
Jan 18, 2007
how to create custom event from beginning to end in AS3?I'd like to know how to create a custom event that extends the Event class and then how to dispatch it. Also, I'd like to know how to catch it using the addEventListener() in the format Event.ENTER_FRAME or Event.CHANGE etc...
I'm having some difficulty understanding how events work. I believe "ENTER_FRAME" is a constant holding some value but I don't see how that could dispatch an event. From what I understand; ENTER_FRAME is a static variable of the Event class?
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Jun 5, 2011
I have a problem that seems easy enough to solve but I'm trying to do it with reusable code, which involves doing something I don't understand yet. I've googled this endlessly and read dozens of articles and I'm still just as lost as when I started. I'm hoping a live human being can help me make sense of it.
I have a movie clip on stage. When this movie clip is pressed, I want it to play a certain frame of another movie clip for as long as it's being touched. (It's a map of the US, that will display each state name as it is pressed.) I COULD write 50 different functions, each to call a different frame of the displayName movie, or I could write my own custom event that would be able to receive from each touch event a string variable to then tell displayName which frame to play. So basically, I have, for example:
[Code]...
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Dec 28, 2009
Is there a point of creating custom event class if i dont need to pass custom property with that event?
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Nov 4, 2011
I have the following situation:I have an event handler, that displays small messages in my application's statusbar.These messages get passes through by dispatching events from custom components.A simple message could be like "HTTP Error" or so.Now, the main event listener, in the main application file, listens to the event dispatched by any custom component,but seems to refuse listening to events dispatched by custom AS classes.Here is my code for the custom event:
package main.events
{
import flash.events.Event;[code]..
So to sum it all up:
- The event listener listens to the custom event dispatched by any custom component.
- The event listener does not listen to the custom event duspatched by an AS class.
Those who wonder, the event really gets dispatched, that's why I added a trace call.
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Jan 7, 2010
how to add an event listener to an event from a custom class. Here are the relevent lines of code (I think) from the class:
[Code]....
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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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Apr 20, 2011
I want to dispatch a custom event from the Country() sto the MenuButton();[code]When a country is hovered a custom event is dispatched which I want the MenuButton to listen and if the parameter passed is the same as its name to get highlighted. The Country Class is the Base Class for my countries movieclips I have on stage and the MenuButton the Base Class for the menu button.
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Feb 18, 2009
In a nutshell I have a custom event that I am dispatching from one class that is not getting picked up by the other class even though i have added the appropriate addEventListener calls on its constructor.Here's how the classes are laid out:
application(class/parent)
- network(class/child)
- loginscreen(class/child)
The constructor of the Application class creates and stores references to the network and loginscreen classes:
ActionScript Code:
import com.fg.managers.NetworkManager;
import com.fg.screens.LoginScreen;[code].....
The NetworkManager class extends the MovieClip class as does the LoginScreen and Application classes as well.Now within the oLoginScreen class I dispatch the ValidateCredentialsEvent by calling it this way:
ActionScript Code:
dispatchEvent (new ValidateCredentialsEvent(ValidateCredentialsEvent.VALIDATE_CREDENTIALS, oLoginData, true, false));
Then when I debug the code, I can step through and see that the ValidateCredentialsEvent is being generated but it is never picked up by the oNetworkManager class whatsoever.Is this occuring because the NetworkManager and LoginScreen classes are children of the Application class and because of this can't capture events raised by one another without using the Application class as the intermediary to redispatch these events? My whole idea here was to create a generic network managing object that could be called from anywhere within the application, by any object, using custom events.
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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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May 3, 2004
I make classes that extend movie clip, but I want to dynamicaly create instances of this class, so I really create MovieClips, but with the added features of the class. How should I create this instances? I want 'this' to be the root of this new movieclip with added features
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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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Jun 23, 2010
I have a custom class which creates a new MC using a library MC. The library MC contains a dynamic textfield called productName.
The custom class object gets created fine and is displaying on the stage. It's also holding custom properties I set as well.
How do I control the dynamic textfield inside the MC, which is inside the custom class object?
My Product.as:
Code:
package {
import flash.display.MovieClip;
public class Product extends MovieClip {
[Code].....
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May 3, 2004
I make classes that extend movie clip, but I want to dynamicaly create instances of this class, create MovieClips, but with the added features of the class. How should I create this instances?
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Sep 4, 2010
I would like to make a new instance of a MovieClip within my library from code written in my keyframe. I relise that you can do this by making a class and using the codeCode:var instancename:movieclipname = new movieclipname(); and with the MovieClips class I would need to extend MovieClip and nothing else. I am unsure if you put in the name of the MovieClip or the name of the MovieClip class in the code above so feel free to correct me. But instead of doing this can I just add a MovieClip to my stage with doing this
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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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Mar 17, 2009
I have the following as code in a separate file placed in the root folder of the swf file. The as file is the class for a MovieClip in the library.When i manually place the library symbol on the stage, the MC works fine and draws the square with the nodes. However, when I try to create a copy using ' new sqMC();' code, I get an error.
Code:
package {
import flash.events.MouseEvent;
import flash.events.Event;
import flash.geom.Point;
[code]....
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Mar 2, 2012
This is NOT duplicate of my earlier post (its is slightly different)But this is similar issue with similar error but its not the same error The error I am getting now is below while dispatching the custom event from my custom component
TypeError: Error #1034: Type Coercion failed: cannot convert events::MapEvent@a74ab51 to flash.events.MouseEvent.
dispatchEvent(new MapEvent(MapEvent.CLICKED_ON_MAP));
Note: The error in my earlier post is giving below error message
Type Coercion failed: cannot convert flash.events::Event@81ecb79 to com.events.ShopEvent
The difference here are two things, the earlier error is while converting flash event to custom event and now this one is while converting custom event to flash event and secondly, I have no clue why it is trying to convert to the mouseevent where I am just dispatching my custom event with proper listeners.
This is my custome event
package events
{
import flash.events.Event;
import ui.map.MapElement;
[code]...
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Sep 11, 2010
I have a file TestClass.as:
[Code]...
The dispatchEvent is definitely sending - returns true when I do trace( this.dispatchEvent(new Event( "initComplete", true))); When I run test.fla, fails silently. Function startUp fails to run.
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Apr 7, 2012
For graphical representation I use fla file as a resource. I work in Flash Builder 4.6 to code. I try to create own class Panel which contains the click event. But event doesn't work when I test the move! When I move the event handler (buttonClick) and event listener to main class (test) and apply the event to the card object (for example), all works fine.
[Code]...
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Aug 9, 2009
I want a custom Event class which draw something to requesting object.
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Aug 25, 2009
I'm trying to add an eventListener to a custom class. I created a motion tween in CS4 and exported the motion as as3, which then gave me a chunk of code.I then took that code and turned it into a class. What I'd like to be able to do is set up an event listener in my FLA to listen for when this animation is done playing, however, I have been unable to get that to work. Do I need to add something else to my class? Is there something wrong with how I'm trying to implement the class in my FLA?Here's the code for the class:
Code:
package
{
[code].....
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Apr 2, 2004
Ive been having a problem with a MovieClip prototype. The code i used is below - the problem being that the onLoad event never happens.If i change the onLoad event to apply to the MovieClip class and not the PlaylistItem class then the event fires fine.[code]
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Apr 2, 2004
Ive been having a problem with a MovieClip prototype. The code i used is below - the problem being that the onLoad event never happens.If i change the onLoad event to apply to the MovieClip class and not the PlaylistItem class then the event fires fine.
//constructor
PlaylistItem = function(){}
//inherit from MovieClip
PlaylistItem.prototype = new MovieClip();
[code]....
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Jan 13, 2010
How do I create a custom event class similar to ActionScript? What I mean by that is a class that I can use to fire off my own events, send the necessary data.
I don't wanna use third-party libraries like YUI or jQuery to do it. My goal is to be able to send a event that looks like this.[code]...
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Apr 28, 2011
Im trying to get my head round what is needed to catch event "Beep2", using dispatchEvent. The function "DoNext" is not firing, even though Im able to produce a trace result of the dispatchEvent "Beep2 true".
This code uses a CustomEvent Class to Extend the Event Class. Its right on my limit of knowledge so far,
[Code]...
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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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May 10, 2010
Im am trying to access my event listners in my "menuButn" class from my doc class.
In my main document class i have the following:
Main.as
public function xmlLoaded(event:Event):void {
var menuButn:Class=getDefinitionByName("com.btn.menuBu tn") as Class;
[Code]......
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Apr 9, 2011
I cannot bubble the event because I want to send to another class that is not even a movieclip but a simple class. So I transform previous source code here Is it impossible with Flash to get the Instance Creator ? for
[Code]...
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Apr 7, 2011
I have a custom event that is dispatched when a slider is moved but I receive no event from inherited dispatcher class I created whereas I followed the same syntax as solution for My flash custom event doesn't trigger
[Code]...
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Nov 10, 2011
Im getting an error whilst trying to add an event listener to a class of a Button on my stage.
1061: Call to a possibly undefined method addEventListener through a reference with static type Class.
On my stage i have a Button with the instance name stopBtn, this is also exported to an actionscript class called classes.stopBtn (stopBtn.as in a folder called 'classes'). The button is on the first keyframe in the main timeline, in a layer with other buttons on that layer
[Code]...
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