ActionScript 3.0 :: Remove Multiple Event Listeners?
Aug 7, 2011In some cases it is important to remove multiple event listeners in order to reduce CPU time.[code]...
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Actionscript 3 :: When To Remove Event Listeners
Jan 23, 2011How do you know when you should remove event listeners? For example, I know that if I have a TimerEvent listener, I can safely remove that event when I have stopped and / or deleted my timer. Or, if I have a display object on the stage, and I remove it, I can safely remove any event listeners associated with the display object.
View 1 RepliesActionScript 3.0 :: How To Remove These Event Listeners
Jan 31, 2009I've placed listeners on the var "topic_mc" (below), but I'm not sure how to remove them properly:
Code:
private function layoutTopics(modNum:Number, attachTo:MovieClip):void {
topicLength = MainMenu.modArr[modNum].topicArr.length;
if (Interface._ui != null) {
[code]...
doesn't really work - the listeners keep running. How do I call the objects properly to remove the listeners?
ActionScript 3.0 :: Remove These Event Listeners?
Feb 2, 2009I've placed listeners on the var "topic_mc" (below), but I'm not sure how to remove them properly:
Code:
private function layoutTopics(modNum:Number, attachTo:MovieClip):void {
topicLength = MainMenu.modArr[modNum].topicArr.length;
if (Interface._ui != null) {[code]....
doesn't really work - any trace statement I place within the event function will run for infinity. How do I call the objects properly to remove the listeners? Note: I've tried referring to currentTarget instead of target but that doesn't make any difference.
ActionScript 3.0 :: Always Remove Event Listeners?
Oct 22, 2010is it necessarily to add and remove event listeners like so:
Code:
addEventListener(MouseEvent.MOUSE_DOWN,mDown);
function mDown(e:MouseEvent){
removeEventListener(MouseEvent.MOUSE_DOWN,mDown);
[code]....
assuming rapid input, is it really better to do this rather than just let the mouseDown and MouseUp Listeners run all the time? It seems like it would be strenuous to constantly add and remove listeners like this. But this is how i generally see it done..
ActionScript 3.0 :: Remove Complex Event Listeners?
Jun 10, 2010circDraw.addEventListener(Event.ENTER_FRAME,function(e:Event){expand(e .target); },false,0,true);
function expand(obj):void {
obj.height+=3;
obj.width+=3;
How would I add a line here to remove that event?
ActionScript 3.0 :: Add / Remove Event Listeners Within Functions
Apr 4, 2011What I am trying to do is, if a user presses keyboard (key 1), picture 1 should FadeIn and if a user presses keyboard (key 2) picture one should FadeOut and picture 2 FadeIn and vice-versa. With the code mentioned below it works fine sometimes if I am not pressing any other key while it is performing one action but sometimes it behaves weird also. What I want AS3 to do is not to take any action or in other words it should not listen to keyboard until it finishes the opening or closing animation of a picture or any other object assigned to the key.
stage.addEventListener (KeyboardEvent.KEY_DOWN, KeyDownHandler);
/**///keyboard keycode for 1 & 2var key1:uint = 49;
var key2:uint = 50;
var BG1:Image1 = new Image1();
var BG2:Image2 = new Image2();
[Code] .....
Actionscript 3 :: Remove All Event Listeners In Flex?
Aug 4, 2010Is there some way where I can remove all event listeneres on my components all at once. Expecially when I dont have any prior knowledge of, what all listeners are being attached to my component.
View 4 RepliesActionScript 3.0 :: Remove Stage Event Listeners?
Feb 5, 2010I create a stage keyboard event listener in an externally loaded swf such as:
Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, onDown);
My question is how and where I should remove this event listener? I have added an unload event handler to the external swf like this:
Code:
this.loaderInfo.addEventListener(Event.UNLOAD, unloadHandler);
The unloadHandler code looks like this:
Code:
private function unloadHandler(event:Event):void {
stage.removeEventListener(KeyboardEvent.KEY_DOWN, onDown);
}
When the container swf unloads the external swf, unloadHandler() gets called, but with the following error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
Where should the keyboard event be removed?
Actionscript 3.0 :: Method To Remove All Event Listeners?
Jan 24, 2009I am creating a large amount of sprites on the fly that have different listeners applied to them -- I want to be able delete these sprites and clear the memory ties that go with them, quick and easy --
Is there a method to detect/remove all listeners on an object without having to check for each one individually?
ActionScript 3.0 :: How Important Is It To Remove Event Listeners
Jul 11, 2009I have a level select screen with about 30 buttons. I created an eventListener for each of these buttons. My question is: When I click a level to enter the game, should I remove all the eventListeners, or would keeping them around not cause any problems?
View 6 RepliesProfessional :: Does RemoveChild Remove The Object's Event Listeners
Nov 30, 2010If you dynamically create a parent movieclip, and dynamically add a color picker to each clip, and add an event listener for each color picker, does a removeChild on the parent movieClip remove event listeners belonging to any of it's children?
View 2 RepliesActionScript 3.0 :: Detect/remove ALL Event Listeners On An Object?
Nov 12, 2009I'm having problem with garbage collection in a large, not-so-well-written project that I didn't start. I am getting memory leaks -- and want to make sure that all event listeners on the offending objects are removed. I've gone through the code and done what I can, but still ain't happening -- is there a way in AS3 to take an object and see IF it has an event listener, and to REMOVE that listener -- that is, to remove ALL listeners, without knowing what they are? I know if I know what the EVENT TYPE is then I can use hasEventListener() to figure out if it has a listener of that type (although the presupposes I know all the event types being used), but if I don't know the function that it's subscribing to then I can't remove it.
Or is there some other way to simply nullify an object for GC? I've changed all listeners to weak -- but I think (since the offending objects are FLVPlaybacks) that something in the flash internal setup is still listening to my object (I've gleaned this from FB 4 profiler which I've used in external mode). I would just, at this point, like to see what's going on.
ActionScript 3.0 :: Remove Event Listeners In Separate Handler Functions?
Sep 17, 2010I've managed to create a button which on MOUSE_DOWN scales its parent object- it works just like windows in your OS, where you grab the corner and can change the scale of the window.
Here's how I've done it, (minus the MOUSE_DOWN listener)
Code:
function scaleDragHandler(event:Event):void {
var mcWidth:Number = event.target.parent.width;
var mcHeight:Number = event.target.parent.height;
[Code].....
However, it throws the error, "Access to undefined property 'scaleMC'" on the removeEventListener line. My thought was to put another listener for mouse up inside the first, but that sounds wrong
Actionscript 3 :: Setting An Object To Null, Automatically Remove All Attached Event Listeners?
Jan 20, 2011Lately 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?
ActionScript 3.0 :: Static Function That Remove The Object From The Stage As Well As Removing Its Event Listeners?
Oct 12, 2011I want to make a static function that I can use in all the custom classes.It should be some kill(); function that would remove the object from the stage as well as removing its event listeners. I made it in Document class, and it didn't work. Here's the code:
ActionScript Code:
public static function kill(e:DisplayObject)
{[code].....
ActionScript 3.0 :: Using Multiple Event Listeners?
Sep 27, 2009In AS2 you could add an onRelease to multiple buttons like this:
Code:
onebutton.onRelease = anotherbutton.onRelease = lastbutton.onRelease = function() {
//do something when either button is pressed;
}
Is there something similar possible in AS3 using addeventlistener? Besided copying the same addeventlistner line for all individual buttons?
ActionScript 3.0 :: Using Multiple Event Listeners
Jul 1, 2009I have a movielcip (A) class in which I have used a Tween class effect on a child movieclip (B) scrollRect. The (B) Movieclip in turn has several movieclips whose have tween class effect being executed on thier child movieclips.the tweens are all unique to each movieclip and the event listeners are taken off once completed.This works all well and good in FLASH IDE..My problem arises when I try to view this in a browser on a Windows XP.[code]
What is happening in most cases it that the animation appears to "stick" but i think what may be happening is the listening or removal of the event listeners. The animations are left incompleted.Is there any rule of thumb when using multiple event listeners?[code]the effect disables and re-enables the buttons when its done.... then the listeners are removed.each one with the exception cretes its own unique tween (obviously this is a custom class built as each clip)
ActionScript 3.0 :: Multiple Event Listeners On Same Property?
Jul 19, 2010I have assigned two event listeners to the same property:
full_loader1.contentLoaderInfo.addEventListener (Event.COMPLETE, fullLoaded1);
full_loader1.contentLoaderInfo.addEventListener (Event.COMPLETE, tweenOut2);
So far it works fine. I am just wondering if there is a hidden penalty that I am eventually to learn about.
IDE :: Assign The Same Event Listeners To Multiple Buttons?
Oct 15, 2009i have a rookie question to ask and it's how to assign the same event listeners to multiple buttons in as3 instead of having to write out the same code over and over again like so...
ActionScript Code:
listing.home.addEventListener(MouseEvent.ROLL_OVER , butOver)
listing.home.addEventListener(MouseEvent.ROLL_OUT , butOut)
listing.home.addEventListener(MouseEvent.CLICK , released)
[Code]...
ActionScript 3.0 :: Multiple Event Listeners To 1 MovieClip?
Oct 4, 2011I want one PopUp to show up at (a lot) of different instances. And something unique has to happen linked to that instance so my thought is:
popUp.addEventListener(TouchEvent.TOUCH_TAP, instance1Handler);
popUP.addEventListener(TouchEvent.TOUCH_TAP, instance2Handler);
etc...
[code].....
3D Cubes - Event Listeners And Multiple Rotating Boxes
Feb 22, 2011I've created a grid of 3D cubes using modulus, and the 3d cubes are were created from the Math and Flash tutorial. I have set up listeners so when the mouse hovers over a cube it starts to rotate:
private function setUpListeners():void {
spBoard.addEventListener(MouseEvent.ROLL_OUT,boardOut);
}
That works fine.
To begin the rotation of the cube when the mouse passes over it I have used:
private function boardOut(e:MouseEvent):void {
addEventListener(Event.ENTER_FRAME,rotateSquare);
var i:int = 1;
function rotateSquare(e:Event) {
renderView(curTheta+i,curPhi+i);
i++;
}}
I can see why this would be inefficient, as it is running the loop every every frame, and for so many multiple cubes it just lags (very badly). I should clarify, I'm hoping for the rotation to continue indefinitely once the mouse moves off the cube. Here is how I am creating the cubes onto the "grid":
public function FlowerMenu(){
var rowY:Number = 0;
for (var i:int = 0; i < 190; i++) {
[Code] .....
ActionScript 3.0 :: Multiple Event Listeners Calling The Same Function?
Jan 29, 2012I've been having a problem with multiple event listeners calling the same function (this is just a snippet of the code):
ActionScript Code:
stage.addEventListener(MouseEvent.MOUSE_UP,Stop_Scale,false,0,true);
stage.addEventListener(Event.MOUSE_LEAVE,Stop_Scale,false,0,true);
[code]......
IDE :: Apply Event Listeners To Multiple Objects/functions?
Jun 24, 2009I'm currently working on a nav bar but I've run into a questionable situation. There are several links in the menu, and for each i'd like a mouse event on over and on out. Do I have to specify both of these events for each link, or is there an easier way to do it that I don't know about? Can you apply event listeners to multiple objects/functions?
View 6 RepliesActionScript 3.0 :: Frame Of Nested Object - Remove Only The Event Listeners From Objects Only On Frame 1?
Jan 21, 2011I have 3 frames each with a movie clip called map_mc. Each different map_mc have different objects that call the CollisionDetect class. Heres whats happening. objects from frame 1 will start freaking out when I goto frame 2. How do I remove only the event listeners from objects only on frame 1?
I have been trying this.currentFrame but the problem is that all the objects are inside map_mc on the first frame so no matter what it will always be 1. On the other hand MovieClip(root).currentFrame will always give me the current frame but wont tell me what the objects frame is relative to the stage.What I want to do is have something to this effect:MovieClip(root).this.currentFrame would output that this object is on frame 1 and MovieClip(root).currentFrame will tell me that the stage is on frame 2 so I can remove the listeners accordingly.
ActionScript 3.0 :: Remove Multiple Children And Trigger An Event If No More Child?
Nov 5, 2011I'm using for loop to display 3lifes on stage using:
[Code]...
and I have already create a hitTestObject on the character, once the character comes in contact with a movieclip, removeChild(Life); is triggered. The first child removed successfully but when it comes to the second one, an error appear:
[Code]...
What should I do to solve this? and how do I trigger an event after no more life is left?
Actionscript 3 :: Removing Event Listeners Not Working - Error #2094: Event Dispatch Recursion Overflow
Nov 24, 2011I have this in my constructor:
[Code]..
The problem is I get Error: Error #2094: Event dispatch recursion overflow. Why does removechild keep getting called if this.parent does not exist? Why doesn't removing event listeners work?
ActionScript 3.0 :: Can Event Listeners Only Be Added To The Class Which Dispatched The Event
Sep 3, 2009Can event listeners only be added to the class which dispatched the event? I ask because I want to have the logic for the listener on the main class, and the action is dispatched on click from a thumb which is instantiated in a scroller class. Kinda like this:
ActionScript Code:
pseudo code:
class main {
main() {
[code]....
This doesn't work. Why can't the main class listen for an event on the thumb class?
ActionScript 3.0 :: Event Listeners Only Fire Off At Event Once?
Feb 13, 2010An odd thing is happening for me, my eventlisteners only fire off once then they seem to stop working.
This thing is a movieclip that slides up the parent movieclip and another movieclip within mc slides it down. They only work once.
ActionScript Code:
slider.up.addEventListener(MouseEvent.MOUSE_UP, activateSlider);
slider.down.addEventListener(MouseEvent.MOUSE_DOWN, activateSlider2);
var frameBoolean:Boolean = false;
[Code].....
Actionscript 3 :: Remove All Enter_Frame Listeners?
Mar 9, 2011Is there a way to remove ALL ENTER_FRAME event listeners at once?
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