Is it possible for a class to override it's own methods at runtime? I know this is possible to do in JavaScript by simply assigning a new function to the method name, but this doesn't appear to work in AS3.
Example: Let's say I have a DisplayObject with many accessors and methods. The user is allowed to load a dynamic library that overrides several of the functions and methods in the DisplayObject. As author of the DisplayObject, I have no idea what methods the user's library is going to override... only that they can. IS this possible?
The only thing I can come up with so far is to literally override every single method and accessor in the DisplayObject, then performing a check whenever they get called:
I'm using flash to draw objects, then I export them and use them from flex, and I'm a beginner in flash.
I'm trying to do the override a method from the MovieClip I created. The method I'm trying to override is stop() method. I didn't write a single line of code, my movie clip is created using entirely the flash interface. I figured out how to add actions to the movie clip when a frame is reached but I'm stucked now when I'm trying to override a MovieClip method.
Well, basically, you know the question already What bugs me is that I cannot get an answer to this because compiler doesn't like overriding internal functions in different packages, but, I would like to know what you think it should do, if it would have compiled?
I.e. imagine: I have foo.bar:A class and foo.abc:B class. Then foo.abc:B extends foo.bar:A. foo.bar:A defines internal function f(). foo.abc:B overrides internal function f(). Now, the question: Can foo.abc.C call foo.abc:B#f()?
Is it possible to override/replace a method of a class in AS3? When I say "replace", I don't mean subclass it and override it. I mean I literally want to replace the existing method with my own. For instance, AS3 has the built-in HTMLLoader class which has a load method. I want to say, in essence: HTMLLoader.load = function() { trace("Overridden"); }; Therefore, when *anybody* makes a new HTMLLoader object and calls the load method, it will call my method instead.
I've tried a couple things, and so far I've gotten this far: HTMLLoader.prototype.load = function() { trace("Overridden") }; And I compile it with -as3=false -es=true -strict=false. The problem is it doesn't override the already-existing load method. It looks in the class first before looking in the prototype, thus making it not work. There must be a way. Even if I can't override it, can I proxy it like a decorator in Python or a macro in LISP? (So mine gets called then it gets called.)
override a custom class method with a function expression? For instance, if I want to change the destination of a button on the fly, I could theoretically type:
Code: var new_destination:Function = function(evt:Event):void{ go_to_new_place();}; myButtonClass.mouse_clicked = new_destination;
but unfortunately that generates an error because the class method "mouse_clicked" is already defined in my class (with the eventListener tied to it). I tried using the "override" keyword in the Function Expression but that didn't work either.
I've a custom itemRenderer for my datagrid. To set the actual data I use the following method:
override public function set data(side:Object):void{ ... }
As soon as I use this function the cell doesn't show up any item Editor anymore. Why is that? When I remove this function the itemEditor is working but with the wrong initialization data.
I always have a question about override custom event. I am not sure why or what do to inside override function. I searched google but didn't get too many feedbacks. EDIT: My projects seem work fine even though I use my custom event without override. Anyone could explain it?
I am trying to use my Flash app to update an XML file when a new user registers. I thought I had found a method to do this using the FileReference.save function. From various searches I understand the function is not as simple as it seems but I cannot get my head around what I need to do to get it working.Here is the code:
ActionScript Code: var newUserToAdd:String = "<user> <name>Steve</name>[code]............
This is the error I am getting at runtime: 1061: Call to a possibly undefined method save through a reference with static type flash.net:FileReference. Are ther any prerequisits I am missing in order to use the function?
I've seen the Loom project, but are there any alternatives that are more mature (and actively developed)? I am looking for something that would allow load-time weaving of pointcuts into existing binary code at runtime with the AVM2 runtime.
I've been into coding for about 5 years now, but I'm a recent convert to Flash development. One of the questions I have at the moment is, considering that SWF files can be run by either Adobe Flash Player OR Adobe AIR, what's the real difference between the two runtime environments? What API's and Objects exist in one environment, but not the other?
Basically what I'm more or less trying to establish is, when would I want to develop an SWF for AIR, and when would I want to develop for Flash Player, considering that Flash Player can also execute locally (providing support for creating "desktop applications")
Whenever I link a set of movieclips together with the bone tool which are inside a containing movieclip, and also set the type to "runtime" instead of "authortime", I get this error when published.
"Runtime symbols with skewed matrices should be wrapped in a movie clip" What does it mean? I need the type to be set to runtime so I can use scripting with it..
I have a Flex 3.2 application for which I am developing a custom style. Basically the first stylesheet gets applied first, and then my custom stylesheet. I am wondering how I can completely empty a value set in the first stylesheet with a value set in the second. The value has to be blank because if the horizontal-center value is set then any other positioning values are ignored.
if i add = null, (even in the class whose method i am overriding) i get that error: override protected function rollOverHandler(e:MouseEvent = null):void {
I'm tryng to make a public static method call another method, but Flash throws error 1180, sayng that the method called by the static method is undefined.
i have a fortran method which creates random numbers. i want to convert this method to a flash method . I want to get numbers from this method and use them in the delay method of flash.
the fortran method is the folowing
real znew1 , zold1 ,a,m,z1,p,TIME1 a= 16807. m=2147483647 B=2
I have a class called Animal that has a method foo() and I call it out within the Animal class.
Code: protected function foo():void { trace("Animal"); }
I also have a class called Cat that extends Animal and overrides the method foo()
Code: override protected function foo():void { trace("Cat"); }
However when calling the function foo() from the superclass it traces out Animal not Cat (using a Cat object).How can I make superclass call out methods in the subclass?
I can't seem to override a custom name space function, flash will not accept it. Here's my classes, very simple:
Code: package { import flash.display.Sprite; public class Main extends Sprite { public function Main() { var t1:TestBase = new TestBase(); var t2:TestSubClass = new TestSubClass(); [Code] .....
I have two datagrids and I want to override the behavior of the tab-key event, so that it goes to the next datagrid, when the cursor reaches the end of the first datagrid columns.
I've read in the flex developer guide that you sometimes need to override one of the lifecycle methods like: commitProperties and updateDisplayList but I've written a few flex apps without ever needing to implement them.when do I need to override them?
I'm watching this video, which is pretty goodhows how to inherit from DownloadProgressBar to create a customer preloader for your flex app.TheDownloadProgressBar class has an overridable getter for the property 'preloader.' Isn't this poor design? What does a property called preloader have anything to do with a class for a DownloadProgressBar
I've written some code that uses setTextFormat to apply formatting to textFields. I need to change it now so if a textfield has a particular title it adds to the formatting (capitalizing it). There's several workarounds I could use but ideally I would like to either create an override for the setTextFormat or textFormat classes that checks the name of the textfield and if it's a particular name before applying all the other specified formatting capitalises it. I know how to override a setter such as (width or height) but can't find any info on overriding a specific property.
