ActionScript 3.0 :: Communicate Between Custom Class?
Feb 21, 2011
communicate between custom classes.
For example: how to get public var value in document class from another class in another package.
i know two ways but i need to know what if i am in the right side or not:
1- public static var Root:Main = this; and then call Main.Root.PublicVarName from another class.
2- make instance from the class ( var classInstance:ClassName = new ClassName() ) then to call function or var ... ( classInstance.PublicVarName ) but in this case i can't call the Main ( Document class ) as i got an error when try to create instance from Document class.
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Jun 26, 2008
I've started to work with Actionscript 3.0 for a couple of weeks and I've just started my very first "top-to-bottom" AS3 project which I'll be delivering (a "demo") next Monday.However, some basic complications are arising and I just don't know what to do, this probably has been answered a lot of times but I can't seem to find a single blogpost/forum/website that addresses this issue in a way that I can understand instead of "copy/pasting" code.[code]Ok, when I press a button inside the NavBar class I want it to execute a function that tells the DocumentSetup generated MovieClip(contentLoader) to load in a different SWF based on the arguments passed on the Event.My questions are:
1 - How do I access a public function on a different class? Let's say I have my navFunction() placed on the DocumentSetup Class, do I need to create "another" instance of the DocumentSetup Class just to tell it to do something?
2 - Let's say you're able to explain to me how to solve the problem above.How can I reference a MovieClip generated by the DocumentClass through another Class? I need something to tell the contentLoader MovieClip to change contents, how do I communicate with it from another Class if the MovieClip was added to the DisplayList through code on the DocumentClass?
3 - How can I create a Variable which is identified throughout the website, let's say I have an XML file with all the text content that's going to fill in the content placeholder's. How do I make this XML data accessible from all classes instead of having to re-import the XML again and again?
My external classes all work 100% themselves but I cannot get them to communicate with each other, I keep getting compiler errors...A website in which you can't navigate to a different page is basically useless
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Mar 14, 2012
Say i need to send some data from AS 3.0 to a server-side script for it to do some actions. Can I do this in a sub-class called some where in a document class or should we always do it in a document class?
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Jun 22, 2010
i have recently started a project that would require writing a set of classes and a small API.i know some basics of inheritance and extending classes but i still have some questions.
1) how should sub-class refer/communicate with super class.i think that dispatching events is the way to go but i have no experience on that. i have previously done it by having a parent set up a reference to itself in a subclass e.g
ParentClass.addChild(SubClass);
SubClass.myParent = ParentClass;
//i know that there is already a "parent" keyword in flash objects if i extend one but is that a decent way to communicate with super class
e.g SubClass.myParent.removeChild(this);//sounds a bad call
//but is it better if i dispatched an event that calls the removeChild() in the parent.i have is about dispatching events in a class that is likely going to be extended.
ActionScript Code:
public class Button
{
//add event listeners[code]....
//now if i extend the Button class into another class, let say ControllerButton and want that button to dispatch different event. e.g ControllerEvent, i am forced to override and rewrite all the common stuff in the handler functions.how to avoid having to override allot of common stuff.
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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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Feb 4, 2011
How do I communicate from a class to the root? I've got a class that does some different things including communicating with a webserver. When it does its thing, I want it to communicate that back to the main part of the program. I'm thinking that an eventdispatcher could do it, but I haven't been able to get it working right. When all is said and done in my class, I tried including:
[Code]...
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Jun 3, 2010
In Flash Player 10.1 and later, the ScriptBridge class provides another way to communicate from JavaScript running in a browser to ActionScript (but not from ActionScript to JavaScript). The ScriptBridge class offers significantly better performance than the ExternalInterface class, and provides access to the entire ActionScript 3.0 API from JavaScript. By contrast, the ExternalInterface class provides access only to callback functions in ActionScript.If you need to call JavaScript from ActionScript, or need to communicate between ActionScript and any other programming language
you must use the ExternalInterface API. If you need to call ActionScript from JavaScript, the ScriptBridge class is recommended. The rest of the section describes the ExternalInterface class.my research makes me believe that this new Flash Player plugin API is most likely resulting from implementing recent changes in the Netscape Plugin API. Hopefully it should be as simple as having the player script NPObject properties and functions to use to access objects, packages and classes of the flash application.
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Nov 20, 2010
I have a document class .as file and I'm trying to communicate an object to another class with a getter. But it's nested inside another movie clip. The compiler says the movie clip it's nested in is undefined. Also, the moviecllip it's nested in is on the stage, dragged manually from the FLA LIbrary and has the instance name, gamelevel1 in the instance name box. I referred to it when I put the _player movie clip, which I'm trying to communicate with the getter, on the stage via and addChild method. Anyway here's the friggin' document class script:
package {
import flash.display.MovieClip;
import flash.events.Event;
import flash.display.Bitmap;
import flash.display.BitmapData;
[code]....
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Mar 6, 2011
I have an app with a setup page that requires the user to select a scenario for a quiz. Their choice determines the content that's loaded next.
With as2 I would have used a global variable to indicate the users choice but of course that's not longer an option, and I don't think I can send an event because the next page isn't loaded yet.
So how do I communicate with a class belonging to a dynamically loaded swf that isn't loaded yet?
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Dec 2, 2011
This is my first time working with a class attached to a movieclip that is nested inside a class attached to a movie clip.I've tested all the properties and methods of PTListItem.as and they work properly but when I try to call them on the list item through PTListTop.as it returns undefined.The end goal is to dynamically load a checklist via a txt file.
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Mar 15, 2012
I am within a class, "Enemy". This class has a function "collision". How can I communicate with the amount of lives a player has left from within this class?
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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 25, 2010
I couldn't work it out yet...
package components {
public class templateSelection extends VBox {
static public var tempSelectionBag:Dictionary;
[Code]....
I want to have a custom class tempSelection with a Dictionary as a public accessable property of that class. If I use this code, the compiler tells me:
1046: Typ wurde nicht gefunden oder war keine Kompilierungszeit- onstante:Dictionary
Which translates to:
Type was not found or was not a compile-time constant: Dictionary
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Aug 16, 2011
If I have a Document class that extends MovieClip, and I want to use it as the basis for another Document class, is it possible to create a subclass that extends the main document class and use that for a different FLA?
For example,
fla1.fla has a document class of MyMainClass:
public class MyMainClass extends MovieClip
fla2.fla has a document class of MySubClass:
public class MySubClass extends MyMainClass
I've tried, but now I'm getting errors that all of my variables that reference stage instances aren't being found.
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Apr 20, 2011
I have a custom class created by a main document class, and I want the custom class to run a function in document class after some time.
How can I sent the instruction from custom class back to the document class?[code]...
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Mar 5, 2007
get a bunch of objects in my library to inherit from (or even be) one class that i have made, but without having to make .as files for every single one is this possible, or is there any other way to give objects another classes functionality in an auto-generated class?
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Dec 7, 2009
Is there a way I can reference a Movie clip I have on the main stage from a custom class of a document class?[code]
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Oct 14, 2011
I need to use stage.width/height in my CustomClass so I found some topics about it.
if (stage)
{
init(ar,firma,kontakt,oferta,naglowek,tekst,dane);
[code]......
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Dec 28, 2009
I'm trying to create a class which will create a tween for several different instances of an object. I am creating the instances in the Document Class. The trick is, I would like to specify how long each tween will take.
Here's what I have so far:
DOCUMENT CLASS
ActionScript Code:
package {
import flash.display.MovieClip;
import mcCloud;
[Code].....
As you can see, I have a variable "myTime" which syncs the timer and the tween. This causes to tween to repeat and the clouds to continually scroll across the stage. How can I determine the var myTime at the time I create each instance of the Movie Clip mcCloud?
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Feb 24, 2009
I keep getting an "undefined property" error when I try to call an external function from within the Doc class. I added the error message to the Doc Class below so you can see where it occurs.
If I take the code from the Tooltip.as below and place it on the FLA's main timeline I can get things working fine, but I would like to move all script to classes. The document class structure looks like this:
Drag_and_Drop.as
Code:
package {
import Tooltip;// Import custom class
public class Drag_and_Drop extends MovieClip {
[Code]....
I realize that I could just combine all the code in the Doc class to get it working, but it would be nice to separate out this particular code which has only one use.
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Jun 2, 2009
the website I'm work on has the document class Main. Within this website I have a movieclip on the stage which I built a custom class for its functionality and I linked this movieclip to this class to make it work. There is no reference to this movieclip or class in Main.
Now, I need to communicate between these two classes. Can I do this? Can I dispatch an event from the custom class linked to the movieclip and have the document class listen for an event? How?
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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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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 4, 2012
I understand it's probably best practice to name your custom classes differently than the built-in AS3.0 classes; however, what kind of problems could I run into if I don't?Specifically, I have a class which, ideally I want to name DataProvider. But, as you know, there is already a DataProvider class on the Flash platform (used for list-based components and such).Now, I don't think I'll ever use BOTH of those classes, so I'm assuming as long as I reference the correct DataProvider class in my import statements I should be ok?What if I DO need to use both, is that even possible?
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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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Oct 3, 2009
Im trying to use an AS3 modification of gskinner's collision detection class, but this being the first custom class i've ever tried to implement, i dont what i'm doing.How do i implement it into my flash? Do I just put it in the same folder as my .fla and .as?Do i have to initiate it in the main class?From what i understand it creates a rectangle, what would i need to turn it into a simple true/false?
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Sep 27, 2011
If I can create dynamic variables on a MovieClip.. why would I not be able to create dynamic variables on a class that extends MovieClip?
[Code]...
I created from a mc symbol in the library. it works fine, except for adding the custom variable.. .. which I need to be able to do.
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Apr 4, 2007
I'm not allowed to import classes into other classes but I am not sure how to achieve what I want. I want 2 custom classes to pass data one from another directly. I have 2 custom classes I want to use: one extends the XMLSocket Class:
class Game extends XMLSocket {
import XMLParser //not allowed to do this I know!
var parser:XMLParser = new XMLParser();[code]....
As I say I realise I am not allowed to import the parsing class into my Game class (or any class for that matter) but I don't know how to pass data directly between these two classes without referencing them in the main FLA.
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