ActionScript 2.0 :: Find Out What Listeners Are Attached To An Object?
Jul 19, 2005
I have a couple of components on stage that I need to disable mouse events on. I've been looking through the documentation, and it looks like the components probably have a Mouse listener setup, and then they fire off their functions when their listeners are notified of an event. In order to remove a Mouse listener, I need to know the instance name of the listener object, is there a way of referencing this? I couldn't find it as a built-in function.
Maybe I'm off-base, and there's a better way to get a component to stop responding to mouse events. I tried
[Code]...
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Jan 20, 2011
Lately I've found myself constantly writing removeEventListeners everywhere, which makes code quite messy. I know it's a best practice and such, but in general it has no sense. Garbage collector should handle such a simple task by itself, shouldn't it? Is it that hard to remove all listeners automatically when object is set to null?
So I just want to be sure if that's the case. Does setting an object to null, automatically remove all attached event listeners? In my case scenario is like this - I create an object and attach bunch of event listeners to it, then after a while I need to re-initialize this object. Of course setting this object to null is much easier then unbinding every listener by hand. And on most part listeners are anonymous functions, which means that it's not possible without code refactoring. When I simply re-initialize a variable with new I do not get duplicate listeners and such, but I'm not sure that it's previous value, along with all the listeners gets garbage-collected. Is it?
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Jun 15, 2011
I came in to flash on ActionScript 3 and when I was starting out just over a year ago I realised how much of a bother finding keyCodes was and changing controls was just as long as had to look up the new one I wanted to use. My solution was to (eventually) write a class that handles all of my key presses and event listeners attached to that stuff. instead of using keyCodes, the functions use strings for their arguments making it easier to see what keys you want to do what. Initially the class only worked for letters and numbers but I managed to make it easily customisable and includes the arrow keys, numpad numbers, space, enter, shift and control keys.
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Oct 7, 2009
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Mar 4, 2004
I am trying to use the shared object to save the _x and _y positions of several attached MC's. The attached MC's have all been given a variable name and attached to a dynamically created MC called "world".I need to loop through all of the MC's in _root.world to save their postions to the shared object. Here is what I have tried,.... when I trace so.flush.. it traces to true but the object postions are not saved.......
Code:
_global.initSo = function() {
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// if the SharedObject object created a new shared object
[code]....
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Feb 4, 2010
I'm trying to create a video player in AS3 that displays the player controls when the user hovers over the video, however I'm having a hard time getting the MOUSE_OVER event to fire. I've made sure that the video's index is at the top, so that's not the issue. Is there something I'm missing? Is there any reason why this event listener wouldn't work on a video object? video.addEventListener(MouseEvent.MOUSE_OVER, doThis);
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Jan 7, 2010
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Apr 28, 2011
[code]How many event listeners for eventType01 are on object? One or zero?
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Aug 23, 2011
I load into an empty movieclip (via addChild) a library object (a movieclip of class MyObject that extends the MovieClip class). At some point, from the main I remove this custom movieclip from its parent and I set any reference to null to completely destroy it. The question: what if in the custom movieclip class there are eventListeners? Are them deleted when I destroy the object? Should I write a method to remove them before deleting the object?
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Sep 7, 2010
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Sep 17, 2010
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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;
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[code]....
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Jul 7, 2010
I'm having trouble telling flash which Sprite to move in my script:
[code]....
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Ordinarily I would use event.target, but I have to use the stage as the listener for MOUSE_MOVE and MOUSE_UP. If I was doing this in PHP or even AS2 I would just pass an argument like reposition(clipname).
[code]...
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Sep 9, 2010
I have 2 types of relationships in my project.
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I am trying to register mouse event listeners for children of my parent object (Inheritance), which works. I just need to register those for the parent and they get dissipated down the hierarchy.However, if i try it for Composition i.e. if i register the mouse event listeners on the main (parent) object, they do not act on the components of the object.So, i have to register the listeners individually on each component.how to get event registration working for composition?
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Sep 9, 2010
So, I have 2 types of relationships in my project.
-Inheritance
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I am trying to register mouse event listeners for children of my parent object (Inheritance), which works. I just need to register those for the parent and they get dissipated down the hierarchy.
However, if i try it for Composition i.e. if i register the mouse event listeners on the main (parent) object, they do not act on the components of the object. So, i have to register the listeners individually on each component.
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Nov 12, 2009
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ActionScript Code:
public static function kill(e:DisplayObject)
{[code].....
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Code:
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function signMove(Event:MouseEvent):void{[code]..........
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imagine i have a scene with hundreds of interactive objects, but they're all invisible, and i don't really know where they are. bad scenario, but work with me here.a while ago i saw a block of code that would trace() the name of every single DisplayObject within the entire scene when you rolled over it.. it was only like 3 lines of code - and it would affect all objects, even objects inside of other movieclips, etc.
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May 7, 2006
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