ActionScript 3.0 :: Access Of Variables From Root Or Document Class?
Nov 13, 2010
Anyways, I've been trying to figure this out for quite some time.Let's say I have my document class. I'm guessing the document class can correspond to the first thing that gets run? (such as the "main" function in most C++/low level languages).If I set a variable in it:var myNumber:Number = 10;how would Iaccess: "myNumber" from other objects in my stage?Like a movieclip on my stage for example.If I go inside that movieclip into the movieclip's first frame, how would I say:trace(TheDocumentClass.myNumber);Another similar question is, what about the actual stage frame?If I click on frame 1 of my stage, set a variable:var aNumber:Number = 5;how would I access it from other objects?In my movieclip's first frame, what would I put?trace(root.aNumber); ?trace(stage.aNumber); ?
Im having whta I think is a quite common problem. I recently started migrating form AS2 to AS3 and Im buidling a home made template for all AS3 projects..
I have just loaded portfolio.swf on top of main.sfw. The buttons on portfolio.swf share the same class as the buttons on main.swf
So I have a MovieClip symbol created in the Flash IDE with a baseClass of flash.display.MovieClip and Class name of "Square". I have placed it on the timeline of my fla at frame 30 and given it an instance name of "square". How can I control that MovieClip from my DocumentClass? I have an ENTER_FRAME listener listening for the arrival of frame 30. At that time I want to simply do something to the "square" MovieClip. But I keep getting a compile-time error of "1119: Access of possibly undefined property square through a reference with static type flash.displayisplayObject.".
I'm using a PreLoader as a parent SWF that loads the actual website as a child SWF. In the website SWF, the child SWF, will MovieClip(root) still work and refer to it's own root, or the PreLoader's root? And would I still access the websitite's document class (the child's document class), through MovieClip(root)? What if both files have a document class?So my main question is how do document classes and MovieClip(root) behave in the scenario when you have:
How can I access variables defined on root from a loaded movieclip? The loaded movieclip path can differ, so I cannot get to root like parent.parent, for example. I thought something like this.root.varName may work, but it obviously doesn't.
In AS3, how can you access a relative variable within a specific movieclip on the stage?I have a test file that changes the variable "myVar" in one of the displayobject movieclips drawn on the stage. I want to simply trace the current value of this displayobject's myVar for additional purposes.In AS2, you would achieve this by calling the instance name and then the variable contained within.Assuming 3 movieclips existed on the stage named Container1¯, Container2¯ and Cotainer3¯trace(_root.myContainer2.myVar);// returns Hello which is value of variable "myVar" within the movieclip instance named "Container2".How would you do this in AS3?[code]
How to access a display object on the stage in a class which is not a document class?
I am looking for a solution that doesn't involve passing the stage as a parameter to the class.
One solution i always come across is using "TopLevel.as". Is it a good method because as far as I have heard using global variables is not recommended because it might cause some problems while working on big projects.
Going further on my app, I felt in another problem. Despite having lots of posts on the web regarding this, none of the solutions worked for me In my document class (Main.as) ve two containers. One empty and another with a star that is being imported from the library. Here´s the main class:
Got two classes "Engine.as" and "Player.as". Engine.as is the document class that is calling Player.as.
The point is to have Player.as create a movieclip on the stage, but it seems it cannot access the library or something. Because when the player class is at the createHero() method it gives me the "error 1009 cannot access a property or method of a null object reference"
It seems simple, but it doesn't seem to be working I have 2 as3 files as classes "mainclass.as3 (this is the document class)" and GamePlay.as3
the GamePlay class works flawlessly on it's own, but when i try to create the var to access it ... var gp:GamePlay=new GamePlay(); ... i get the following error.
I have looked at tutorial etc, but i cant get it to work i am currently getting the following error.[code]...
It used to be simple to access an object you put on the stage like a mc or dynamic text field by simply using _root.instanceName ect. Now I see references to making references to the Stage and such like:
private var stage:Stage; stage = stageRef; and I am still confused.
What I have going on is, I have placed a movieclip on the stage in Flash and gave it an instance name of Cell_mc.I have a cusom class that extends MovieClip with the following imports
if i want from a document class to access some variables in other classes (which are imported into that document class) does these variables need to be public to access them or they can be something else?
I was wondering if it was possible to access the document class from within a movieclip.
I am creating a slideshow type project, and I'm using a document class to switch between the frames using the arrow keys. However, in one of the "slideshow screen" movieclips, I want to have it stop, and then play another part when the arrow key is pressed again.
I tried to access my nextScreenToPlay method within the document class, but whenever I try to do it within a movie clip, I get this error: Call to a possibly undefined method nextScreenToPlay through a reference with static type class.
If I do a trace(Main), within a movieclip, it shows the class.
Just tried using cs5 on my new macbook and I have a tlf text object on the stage with an instance name of mText. I tried to access (mText.text = "test") it like this and got a null object reference. I tried to trace the stage from my document class and it was null when the tlftextbox was on the stage but i could trace stage correctly when I deleted the textbox. [code]...
I have a variable, we'll call it helloNurse, defined in the document class, we'll call it Joy, as a public variable. Meanwhile, I have a movieclip within the FLA that uses that class as its document class that, simply put, needs to access that variable. I had read up that the following SHOULD work:
I have a document class called PlayVoiceOvers; I set voiceToPlay and frameToPlay in the public function and when the voice "v001.mp3" is done playing it jumps to frame label v2.[code]...
However the new voiceToPlay and frameToPlay don't do anything even though when the soundCompleteHandler is done it traces the correct values.can I pass variable information from the main timeline to the document class, apparently I can but I don't know why the new voice over doesn't play.
For the example, there's a single FLA with a document class "main.as." In the public class main.as package, there is a public variable: "var example:String='example';." Inside of the FLA, there is one movie clip in the library and it is assigned a custom base class "sub.as." The movie clip is then placed on the first frame of the stage so its constructor is run at runtime and reads the value of example.
What is the proper way to get the value of "example" in the root document class? Using "root.example" in the sub.as class to target the document class returns an error and when I trace "root", I get "null." Main.example naturally throws an error because that's looking at the actual class and not the movie / stage its attached to.The round-about way I've done it before is to dynamically add the object in the library and pass in the root path when I create a new instance of it (example: submc:sub = new sub(this); ).Is there anyway to get back to the document class with a built-in method like root, etc?
I m trying to access stage.width property but sometimes it trace 650 and 720 but i see my flash file dimension is 500x400, I need to align objects on stage..
I want to know how you access a variable within the fla file from the Document class?I want an int inside the fla or swf file to be accessed from the class that is being used to run the file?
I have a "box_mc" movieclip on the root of my stage and I need to select it from within my Document Class. I thought Stage.getChildByName("box_mc") would work, but it just returns null.
I can access the targetObj instance inside the document class, but when I try to access it in another .as class,get this error: Access of undefined property targetObj.
I am trying to add a keyboard event listener to the stage, to detect when a user clicks the left or right arrow keys. But this listener is called from inside a class file which is imported into the document class, therefore I think it doesn't know what "stage" refers to. How do I solve this?
Let's say I have a FLA file with document class called main. In main, let's say I have a method called test1 that just outputs "hello world" via trace. On the FLA I have a movie clip. In that movie clip, when the timeline reaches frame 123, I want it to invoke the test1 method (I just set up a simple action on the frame). However, I get an error saying that the method is undefined. I try this.parent.test1() too but that gives me the same error. Is it not possible to invoke a document class property from within the timeline of a movie clip that's on the stage?
