ActionScript 3.0 :: Accessing Objects With Linked Classes?
Sep 15, 2010
So I have a menu built inside of Flash CS4 that has a graphic for a background and five text fields that sit on it for menu options. The whole thing is saved as a movie clip in the library. The text fields all have instance names like infoBtn and mapBtn etc. and the menu is already on the stage and linked to it's own class in the library. My problem is accessing those text fields on the menu from the class. I keep getting "Error #1009: Cannot access a property or method of a null object reference." and the menu doesn't work. But if I trace the infoBtn.text in the class it outputs the text that is in the text field. So the code is accessing it but it's still not working?
Code:
package classes
{
import flash.display.*;
import flash.events.*;
[cODE].....
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Jan 7, 2012
I want to access an object from a class in which it was not created in. I have a main class (A) in which I create and instantiate an object (of class B), from this class I can obviously do whatever I want with the object, no problem. The issue I'm having is another class (C) needs to access the object in question to change its x and y location values. Class C doesn't know what the instance of class B, created in class A, is; this doesn't surprise me, but I can't figure out how to allow class C to get access to what class A created.
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Oct 28, 2009
I have been struggling with what seems to be simple concept in ActionScript 3.0 - how to communicate between classes. I have a very simple experiment with two movieclips on the stage. They are named YellowBox and RedBox in my library. I have linked the following code to the YellowBox movieclip:
package{ import flash.display.MovieClip; import flash.events.MouseEvent; public class YellowBox extends MovieClip { public function YellowBox() { this.addEventListener(MouseEvent.ROLL_OVER, rollOverHandler); } public function rollOverHandler(event:MouseEvent):void { this.x = x + 3; } }}
What I would like to do is call the YellowBox() function on my RedBox MovieClip with the following code:
package{ import flash.display.MovieClip; import flash.events.MouseEvent; public class RedBox extends MovieClip { public function RedBox() { YellowBox(); } }}
I get the following message when I compile: 1136: Incorrect number of arguments. Expected 1.
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Jun 24, 2009
- I have a player.as with code to control playback of videos
- I have a skin.as with code to control and organise skin components
- The skin.as file loads a "shared library" (quotes as I don't think I'm doing this correctly) which is essentially a swf file with nothing on the stage. It's library contains things like: play buttons, scrub bars etc. all these assets have associated, linked class files to add functionality.
1. Load the containing swfs
2. Create new instances of the linked classes
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However, there is an issue preventing me from using the linked assets in this way - I can't use the linked assets unless-
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What I want to do is just use the linked assets, not have to deal with any other parts of the "shared library" file.
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Nov 28, 2007
I'm trying to link a clip to a class, and it goes well until I try to access MovieClips or TextFields placed on the stage within that clip from code in the class. My code is below; there is a TextField called output_txt on the stage within this clip.
class Main extends MovieClip{
public function Main() {
//trace("123"); <--if I replace the line below with this, it traces nicely
output_txt.text = "123";
stop();
}
}
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Aug 28, 2010
i've been all afternoon trying to figure out a solution to my problem, and I can't seem to find it, or cannot implement it. Let me lay it out for you: I have an actionscript file linked to a movieclip. (movieclip:skate class linked: generic_skate).I have it set up that way so I can create an array of skates easily (i'm using a for loop to create them), and each skate has its own attributes (name, description, price and the image that is supposed to go on the deck)In the stage, i have three text boxes, one for the price, other for the name, and another one for the description.In the generic_skate class, I'm handling all the mouse events (in this case mouseOver and mouseOut.
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Apr 2, 2010
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[Code]...
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Jul 24, 2010
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Nov 29, 2011
How can find out the linked url of the image in the flash of a website? I looked for the image url some time. but couldn't find itif find the linked url of the image, and i want to alter an image linked url address. where is the code in?
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May 25, 2009
I've got two classes running...one is a document class (EgoGame.as) and another is a class linked to several similar movie clips (Ball.as).I'm trying to access a public variable from Ball.as which has been declared in the doucment class EgoGame.as.When I run the test the outputs states the following...1120: Access of undefined property _ballPlaced.Here's my code. What I'm trying to do is remove the event listeners from the Ball.as when the _ballPlaced variable is true, so that the user can't drag and drop the balls after they've been placed in a zone.
Document ClassEgoGame.as
package
{
[code].....
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Apr 9, 2010
I have a project that i'm working on, and in the project it's important that i have an object that i can create with actionscript that already has two arrays inside of it. To do this, i made the movieclip, i checked export for actionscript in the library, and in the custom class that corresponds to that object i made the arrays with the following code:
package {
import flash.display.*;
public class cont extends MovieClip {
[code]......
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Sep 8, 2011
I've been working my way towards better OOP design lately and I've come across a problem with accessing functions in other classes from my Main class. Here is the code:
Main.as
ActionScript Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
stage.addEventListener(KeyboardEvent.KEY_DOWN, fireBullet);
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Jun 22, 2009
I have 2 swfs, one is main and it loads other file "skin.swf". skin contains object of custom class SkinClass. I can access it from main swf, but when I try to cast that object, the result is null. This happens when I use absolute url, when I load skin from relative url, everything is ok.
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May 3, 2011
I am having this issue were I can not access any variables from any other class![code]Now, from my other variables, that is what I do, I don't understand what I am doing wrong?
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Mar 31, 2012
I've recently started development on my first proper AS3 project and I�ve hit a sort of brick wall with my knowledge of how to make AS3 classes do what I want. I could do this in AS2 no problem with referencing the stage, but now that only the document class has access I'm stuck.I have instances of a MC called activity. These sit inside a container MC that is the source of a scroll pane (that sits on the stage).
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Code: Select allvar f = new Foo();
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how to put actionscript classes into an MXML document? Lets say my class represents a movieclip, a rotating triangle for instance. How do i put that into a <mx:vbox> containter? I can do the AS work in a <mx:Script> tag, but how do i embed my class instance?
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Jul 27, 2009
On the mxmlc command line, I can include paths to RSL files. I can choose to link these RSLs at runtime by setting
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I have a document class which links to several classes, one of which adds a container onto the stage and loads external .swf's into it.Q: How do I access the various classes loaded in the document class from the external swf timeline?For instance, when you click a button in the loaded swf it changes the soundtrack from the soundtrack class. I have tried dispatchevent from the external swf timeline, but I still can't seem to get it to work. Is this supposed to work, or should I be doing something different?
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Aug 30, 2006
I began with a class for a movie clip rollover function FigureRollOver. It works marvellously. Three things happen:
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var myRollOvers:Array = new FigureXMLLoader("mod1_fig1.xml");
Here is FigureXMLLoader (see comments in the code for more details) which obviously does not return an array as it is, because of all the working around I've had to do. Note the "testing" variable, which can be traced from the main timeline of the .swf, but I will get "not what I want" because of course the array hasn't been built yet, and never will be, inside of the declaration as it is. How do I get it in there so I can return an array?
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Dec 26, 2006
i've got two classes and i'm not extending to MovieClip. I like to attach the mc in the constructor just because i'll be working with different MC's that have the same purpose.
however, im using private var loadedMC:Movieclip and now i've got another class that needs to be able to access the instance's variable.
for example, myClass.loadedMC , but this would mean having to make it public and I rather not go that route.
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Feb 12, 2010
I have 2 classes Main.as and RedPawn.as (yes, in the same folder).I am wanting to check if a child exists on a movie clip in Main.as through RedPawn.as.This is within a for loop since I am checking 24 possible values for _dest until I find a match.This simplified code example would be in the RedPawn class:
Code:
_dest = 'example_mc'; // example_mc is pulled from an array
if ( MovieClip(root)._dest.numChildren < 2 ) { // do stuff; }
[code].....
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Feb 7, 2005
I've got a problem targeting objects is AS2 classes. In a class I have a multi-dimensional array with paths to some mc's in the main timeline (caminho['mc']). I need to reference them via method in a class, so i use something like this:
[CODE]...
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Nov 10, 2009
I'd like to be able to access some objects which are on the stage before compile time (e.g. in my .fla file). I can do this fine from the document class using the names I've assigned to them, but I need to be able to do this from other classes (instantiated at runtime) too.
What is the best way to go about this? Can I use the stage variable (this isn't looking likely from what I've read so far) somehow? Or do I need to pass in references to these objects from my document class when I create the instances of the class that needs to access them?
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Jan 15, 2009
I'm working on a flash video player and I'm trying to figure out how to access something inside the constructor that I know is set but it keeps telling me its not.
[Code]....
now in the metadata function its giving me the error, "Access of undefined property video" Now, am I just completely not understanding how classes work or is this a common problem?
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Sep 19, 2006
Here's my code:
Code:
function loadProjects(loaded){
if(loaded){
projects = this.firstChild.childNodes;
[Code]....
the traces within the function return correct results, however when trace values of the arrays within the function and created by the xml are attempted results are returned 'undefined'.
Why can I not access arrays made in this way from outside of the function?
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Jun 16, 2009
If I've got a bunch of plain old Objects, what's the best way to map them to a bunch of Classes?For example, if I use an HTTPService to pull in some JSON, then deserialize it, I'll have a bunch of objects which look like:
{ type: "person",
id: 42,
name: "David" }
And I want to turn them into instances of a Person class:
class Person {
id:int;
name:String;
}
(also to be considered: how about some standard way of dealing with relationships between objects? For example, if the Person had an additional "spouse" field:
{ type: "person", spouse: 61, ... } // Where 61 is the ID of the spouse
)
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Dec 7, 2009
When I try to do this in an AS CDATA block, it tells me I can't have a class declared within a class (the MX:Application itself). Makes sense. But where and how do I do it?
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Dec 27, 2010
So i a building a categorized menu of different foods. I have a class for "categories" (buttons) which essentially will return a string "salads", "drinks", etc. I now have another class "menuItems" for items within categories and this handles sizes such as "small", "med", "large", etc. My problem now is that when i return "salads", i want to invoke an array which contains all the elements of salads, send it to menuItems which will populate the menu. So far i have both the category objects and the menu object setup. I just cant seem to be able to send the data that the category object is returning and pass it to the menu object. Both of which are added to the stage as shown below:
If there was a way that i could say add all these classes to one class so that they can talk to each other that would be great but i dont know how to do this.
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Feb 26, 2007
I've been heavily mired in 3D recently, and decided to pay a visit back to good ole Flash.
My problem is this. I'm extending the MovieClipLoader class to create a Preloader Class (yes I'm sure it's been done fifty billion times but). I'm trying to refer to a symbol in a common library, the preloader symbol itself.
Inside my class I have this
Code:
function onLoadStart(target){
baseClip.attachMovie("preloaderTemplate_mc", "preloader_mc", 500, {_x:0, _y:20, _xscale:75, _yscale:75});
baseClip.preloader_mc.gotoAndPlay(1);
}
baseClip is a MovieClip object which takes a MovieClip passed to the constructor of the class in the FLA. (say a container movieclip which has a target clip preloaded into it) The class does load the target clip into the baseClip, but doesn't show the preloader, which makes me think I'm not referring to it properly.
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