ActionScript 3.0 :: Dynamic Args To Event Listener
Jun 25, 2009
I'm new to ActionScript and am having trouble hooking up callbacks to take extra, dynamic args.The basics are: I have a method that takes a couple of parameters, uses a RemoteObject to send an operation to get a third value, and I want to pass all three (the operation result and the original two) to another callback.[code]This does allow passing extra args, but it is adding a new listener each time createMeeting is run. So I would need to remove the old listener, but I don't have a handle on the old callback since it was dynamically created/anonymous (I'm not sure of the correct AS terms).I guess I could create a custom event dispatcher that kept track of the previous listener. But maybe removing and adding new listeners each time is the wrong solution to begin with. How would you set up a listener like this when the extra parameters you want to pass to the callback will be changing?
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Apr 3, 2007
I'm a professional flash game developer and my week planning is to learn AS3 (kinda..I've just started something but there is one minor problem.... I can't find a way to pass args with eventListener
[Code]...
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Jun 4, 2009
Adding addEventListener too a Child object
I am programming a "build a tower" game. After removing the event listener from the first movieclip, flash won't add the event listener to the by as3 to the stage attached new movieclip.
Error MSG:
TypeError: Error #1010: A term is undefined and has no properties.
at stackers02_fla::MainTimeline/keyDownHandler()
Code:
//Vars
var $newObjectName:String;
var $direction:String;
var $level:int;
[Code].....
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Apr 27, 2009
I have a movie clip being dynamically added to the stage via an AS3 linkage call:
gameOver_mc = new GameOver();
stage.addChild(gameOver_mc);
The movie loads as required.But when the movie has been added I want the user to be able to press spacebar and a function to run.So in the GameOver.as class I wrote the following:
Code:
package
{
import flash.ui.Keyboard;
[code]...
But as soon as the movie clip tries to load I get the error message: TypeError: Error #1009: Cannot access a property or method of a null object reference.I would have thought this would work fine. When I trace the statement in the Constructor function is works. Its only when I try to add an event listener that I get the problems. So am I not allowed to add event listeners from a dynamically loaded class?
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Apr 27, 2009
run event listener through dynamic object call
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Jun 23, 2009
I have a class which I want to use throughout my projects. It essentially would allow me to easily work with a RemoteObject so that I don't have to define it throughout all of my projects. It works when not passing "args" to sendRequest(..). But when I want to call the cfc function with parameters and try passing "args" in I get the following error:
[Code]...
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Feb 4, 2009
this is the error I am having:
TypeError: Error #2007: Parameter listener must be non-null.at flash.events::EventDispatcher/removeEventListener()
at project1_fla::MainTimeline/btnName()
here is my code:
ActionScript Code:
import caurina.transitions.Tweener;
import caurina.transitions.properties.ColorShortcuts;[code]..........
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Jul 7, 2011
I am trying to learn JavaScript and I am wondering whether JavaScript has a event listener just like ActionScript's ENTER_FRAME. Basically, I want this event listener to listen "all the time" not just wait for any particular instance (mouse click, keyboard event) of event.
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Nov 17, 2011
if I have an event listerner (mouse, keyboard, enterframe,....event) that is being triggered, and when it finishes its event, something that is able to detect the finished event listener and fire out another sets of event.
It works more like MOTION_FINISH in TweenEvent, but it is only available for TweenEvent only, what if I want to detect a mousclick, keyboard, enterframe or even touch event?
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Feb 23, 2011
My stage has about 25 buttons on it. Each button when pressed to tweens the background to some random x/y coordinates and then loads an external swf file.This is all working, but the timing is off. How can I wait for the initial background tween to end before I make the loader call to the .swf file.Currently each button's behavior is called on the MouseEvent.CLICK event which calls a function that knows its unique filename.swf. I know you can add the MOTION_FINISH even to the tween event but then I would have to call a new function and lose track of the button that initially called it.
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Feb 27, 2007
I'm moving on to my next massive programming project and I'm trying to decide whether I should code it in as 2.0 or 3.0. I came across the new click event model in 3.0. Right now it's looking like a pain in the butt to me. So now I have to make a function and add it as an event listener? what the hell? What's the benefit? I understand stuff like this makes AS a more complete language but it's kinda annoying.
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Aug 20, 2009
This is a very basic question but I can't seem to find an answer. I have a mouse over event and have created the buttons with the mouse overs which is working great. I created the actionscript to go to a specific web page when a user clicks the button. Now, I need to add a label to the mouse over so when someone mouse's over any area of the button, it will show them a particular name for the button.
I am sure that this can be done using actionscript in a mouse event roll over command but I can't figure out what I need to show the text. Here is where I am:
[Code]..
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May 13, 2010
how can i access event.target outside event listener method.say for example
my_mc.addEventListener(MouseEvent.CLICK, onC);
function onC(e:MouseEvent):void
{
var m:MovieClip = e.target as MovieClip;
}
trace(m.totalframes);/// not working
now what if i want to get totalframe property of m instance, in short for every movieClip clicked.
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Jul 8, 2011
I am doing this inside a module containing viewstacks and their childs.Calling onInit() on creationComplete of module.When I am inside one of the childs of a viewstack of this module and press Enter, it doesnt not invoke the listener function at all (bp inside this does not get hit).
private function onInit():void{
this.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}[code]..........
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Nov 18, 2011
This might be more of a subjective question, but is it generally best practice to have one dedicated method per event-types that you add an event-listener?
Such as:
myButton.addEventListener(MouseEvent.MOUSE_OVER, onMouseOver);
myButton.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut);
//Somewhere else in the code...
[Code].....
And if you had a MouseEvent.MOUSE_UP, MouseEvent.MOUSE_DOWN and other relevant MouseEvents event-listeners to watch for, you could even set a switch statement to handle all the various MouseEvent types.
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Jul 30, 2009
I have these buttons in a movie clip and I would like to have only one event listener for the parent, using event.target to point to the children. I have also tried event.currentTarget, and it didn't work.here is the code that works:
test01.abtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);
test01.bbtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);
test01.cbtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);[code]....
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Jan 7, 2010
how to add an event listener to an event from a custom class. Here are the relevent lines of code (I think) from the class:
[Code]....
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Nov 3, 2009
I have a code in AS3 that works when you rollover it. I need to use the same code but not with an eventlistener for a mouse event but a frame event when the timeline plays the clip
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[code]....
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Apr 20, 2010
printableInvoice.addEventListener(batchGenerated, printableInvoice_batchGeneratedHandler);Results in this error: 1120: Access of undefined property batchGenerated. I have tried it as FlexEvent.batchGenerated and FlashEvent.batchGenerated.
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Mar 13, 2010
This is something that tugs at my mind a lot so I figured I'd ask the community. If I have a class called MyParentWidget and it contains an instance of MyChildWidget with an instance name of myChildWidget then I will often do something like this:
[Code]....
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Dec 13, 2010
I'm making numerous ExternalInterface calls to JavaScript methods and have a helper function for doing so:
[Code]...
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Oct 23, 2009
I am trying to get this simple event listener to work.
function moveBoarder(boarder:MovieClip, movement:Number, rotationAmt:Number):void
{
boarder.y -= movement;
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[code]...
understand this error message "ArgumentError: Error #1063: Argument count mismatch on making_modular_fla::MainTimeline/moveBoarder(). Expected 3, got 1."
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Feb 23, 2009
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May 19, 2009
I have a simple roll over animation. After the roll over, is there any way to disable the event listener so that the animation will play completely before any further interaction happens? Then re-enable it so it can be rolled over again? [code]...
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I have a rollover function that sets alpha values, and i also have a click function that sets the alpha even higher on click. I also have a roll out function to return it to normal when roll out. The thing is i want it to hold the high alpha value on click because that is the web page is selected. It works, but the second i rool out or roll over, it sets the value back. [code]...
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May 31, 2011
i have my main swf that loads different swfs for content.on a portfolio page i have two buttons web and print.by default print loads first.
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Jun 3, 2011
Can we add evvent listener to a text field?Like when you click on the text field it calls a function?
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Mar 12, 2009
I am loading data from XML and can create MovieClips to hold the images and text data for each node. However, I can't figure out how to add an onRelease Event Listeners to each MovieClip.
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May 20, 2009
Is there a way to make an event listener "sleep" for 5 seconds and then make it active again ? Im thinking about something like that:
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Aug 10, 2009
I'm trying to figure out if it's possible to run multiple buttons using a single addEventListener so that I don't have to create extra code. For example, in the code below I have my instance name "btnCA" which is on my movie clip. It works great and there are no issues with this code, but I need to add more buttons. Does that mean I have to copy and paste this code for each button or is there a way to add multiple instances to an event listener?
Sample code:
buttonMode = true;useHandCursor = true;
var rewind:Boolean =
[code]........
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