Actionscript 3 :: Pass A Function Name Into An Event Listener?
Jun 23, 2011
private function myFunction(numIn:Number){
trace ("numIn " + numIn);
}[code].....
This won't work, but can you see what I'm trying to do? It's kind of like a function pointer, or when you pass a function name into an event listener.
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Aug 29, 2008
How do i pass a variable to a function from an event listener which is inside a function Below is a function that is called when after loading some variables
function dataOK(mydataevent:Event):void{
var j:int = 0;
do {
trace(j);
[Code]....
This is a simplified version of the original code. The above function generates an error because j is undefined in the function. I am wanting to get the variable j when the button is pressed.
How do I pass the variable j to the Button_Click function?
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Jun 20, 2011
Since when using sql lite if you try and do a function at the same moment it throws an error, im just trying to make a function that will check if its executing, and if it is try again in 10 milliseconds, this exact function works fine if i dont have to pass any arguments to the function but im confused how I can pass the vars back into the function it'll be executing.[code]
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Aug 19, 2009
I am trying to pass an additional arguments to my listener function, like this[code]...
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Feb 13, 2010
I headed some problem which can't solve. It's simple. I'm making slideshow, and wanna pictures to be dynamically loaded. List of images is stored in list.xml - a valid xml file. Now, here is piece of the code:
var imgno :Number ; //the var which tells the number of images listed in list.xml
var myXML:XML;
var myLoader:URLLoader = new URLLoader();
[Code]....
So, the triggered function processXML cannot change value of any variable which stands out of her. Is there a way to export (in this case) information about amount of images listed in list.xml to some of the variables that I can use later (for example imgno).
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Feb 22, 2010
In AS2, I often found it useful to pass arguments to a function on a button press like so:
btn.onRelease = function(){
doSomething("arg1", "arg2", "arg3");
}
I searched the interweb for DAYS trying to find how to accomplish this via an event listener in AS3, but everything I found suggested creating a custom Event. The problem with this, is you have to decide the arguments you wish to pass in advance, and I wanted to create them dynamically on the fly ( for example: passing a string that a user entered into a textfield to some function for processing ).
So last night I spent hours scouring forums - and UREKA! I finally found something that I was able to tweak to send a variable number of arguments of any data type. I've never posted on a forum, but it was such a breakthru that I had to share it with the world.
Here is the code:
btn1.addEventListener( MouseEvent.CLICK, function onClick(e:Event ) { displayArgs(e, new Array("Larry", "Curly", "Moe") ) } );
btn2.addEventListener( MouseEvent.CLICK, function onClick(e:Event ) {
[Code]....
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May 8, 2010
I have 3-4 swf those i want to load one after another like a slideshow.What i want to do is get the total frames of loaded swf and want to pass that value to Timer object's delay parameter. i have converted total frames to milliseconds so i can use it in timer constructor. But i am not getting the value of that variable outside of my Event.COMPLETE listener method. Here is my code what i have done
[Code].....
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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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Jun 23, 2009
how do i use two event listeners on one function. For example, i want a mouse_move and enter_frame event listener with one function
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Mar 11, 2010
I'm trying and it doesn't seem to like it. I'm guessing it's not possible?[code]...
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Mar 15, 2010
I am working on a game for my university project and I have run into a bit of trouble. I have the following code here:
function launchBall() {
this.stage.addEventListener(KeyboardEvent.KEY_DOWN ,launchBallHandler);
function launchBallHandler(e:KeyboardEvent):void {
if (e.keyCode==32) {
[Code].....
Its set up so that when a ball goes off screen, it resets to a coordinate and launchBall is called.
LaunchBall then adds the event listener to see when the Space key is pressed and that starts the ball moving again. The problem I have now is I cant seem to get rid of that eventListener. I have tried removeEventListener and that doesn't seem to work. I have tried:
if (ball.xVel>0 && ball.yVel>0) {
removeEventListener(KeyboardEvent.KEY_DOWN,launchB allHandler);
just below that code and that doesn't work either. It's not spitting any errors out at me but I am completely stumped.
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Jan 10, 2011
I just started a course that does a little flash. To teach us they have us build a brick breaker game. I have come to a part were I have to remove all the Listener that were created for the game. Each level is a movie clip and when the level is over the level instance is removed from the child. From what I understand when the level is removed the Event.REMOVED_FROM_STAGE becomes true and the function attached should be called however it is not. Here is the code of the function that sets the listener and the function to be called:
[Code]...
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Feb 10, 2012
I have a method which registers an event listener to each of the MovieClips in an array I have. The method is inside a class, and so is the listener function. The problem is, I'm getting an error that's says "Access of undefined property handleNavToggle", even though is declared.
[Code]...
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Dec 29, 2009
So I guess the usual stuff is to have
function listenToEvent(evt: Event){
//stuff
}
[code]......
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Jun 19, 2009
I'd like a movie clip called "following_cursor_mc" to follow the cursor, regardless of which of several different frames the playhead may be on. I've reproduced the code below on each frame in which I would like the cursor to be followed by "following_cursor_mc" but these errors are thrown for each of the frames:
1021: Duplicate function definition.
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Jun 8, 2010
Just wondering how to set up an event listener to trigger a function when a movieclip reaches a certain y position?
Say the movieclip is called ball_mc.
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Sep 28, 2011
I'm trying to return XML from an event complete back to the main function, but can't figure out how to do it.Here's the functions I'm calling:Main File:
public var mySendAndLoad:SendAndLoad = new SendAndLoad();
mySendAndLoad.sendData(url,variables)
The mySendAndLoad class:
[code]........
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Feb 19, 2009
How would you remove an event listener from a nameless function?[code]
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Oct 13, 2009
I have a set of buttons on, and what i would like to do is change the value of a variable, depending which button you are over.i know i could do this by writing an event listener and a function for each button, but this is too time consuming.I'm sure in the old days it would have been as simple as if btnwhatever.mousedown = true then.... but now i have no idea.
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Oct 11, 2010
How do I call the slideShow function without an event listener?[code]...
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Mar 27, 2008
So I have an event listener, and I call a function from it.. but I want to pass some variables along with it as well.Is that possible?
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Mar 3, 2010
I am trying to create an event listener to check that a function has completed before the next action is run. In simple terms I have a module that is opened and closed via two functions... module_open() and module_close().Each function has tween elements that must complete before the next element is processed... i.e the next function, etc.This is the code I have ( have attempted to create an event listener but I seem doing something wrong. I am not even sure that it is possible to create an event listener that checks for a function finishing before calling the next function.
Code:
function onAbout(event:Event):void {
module_close()
module_close.addEventListener(Event.COMPLETE, onClose_Complete);
[code]....
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Aug 12, 2010
Say I have the following function
Code:
function myVideoFunction(event:VideoEvent):void {
do some stuff....
}
but i want to call it from the event listener
Code: button.addEventListener(MouseEvent.CLICK,myVideoFunction);
I cant because it runs off a VideoEvent, not a MouseEvent.The obvious work around is to copy and paste the function and rename this part, or alternativly just make a function such as:
Code:
button.addEventListener(MouseEvent.CLICK,callMyVideoFunction);
function callMyVideoFunction (event:MouseEvent) {
myVideoFunction(null);[code].....
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Jul 5, 2011
The keyBoard event listeners call on the rotate and unrotate functions and based on the key inputs(A and D) will implement either of the functions and rotate the image or return it to the original upright position. However, I haven't been able to get the function to work. When I press the A or D keys on the keyboard nothing happens. I even put trace() in one of the functions to see if the function will even be implemented but I don't get anything. I put in my Scripts below. Why are the functions not working? Do the eventlisteners fire or are there conflicts? I'm not getting any error messages.
ti.border = true
ti.addEventListener(TextEvent.TEXT_INPUT, onInput);
function onInput(event:TextEvent):void {
if(ti.text.search('a')!=-1) load_image("http://i54.tinypic.com/anom5d.png", "ottefct");
[code]....
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Jul 26, 2011
I have a situation where I'm calling a function with an event listener attached to a button, which in turn calls a function, which does a number things including calling a second function which resides in a child swf.
Just as an example:
Code:
myBtn.addEventListener(MouseEvent.CLICK, firstFunction);
function firstFunction(e:MouseEvent):void{
//I call another function in here (among other things)
externalSwf.stopTimer();
}
"StopTimer" resides in an external swf which for our purposes is called externalSwf and it resets a running timer.
Code:
function stopTimer():void{
myTimer.reset();
}
I'm getting argument mismatch errors, which often have to do with the Event Objects not matching. The event object for firstFunction is a mouse event triggered by a click so I put in e:MouseEvent...what I don't clearly understand is, what type of object event is dispatched when I call the function stopTimer from inside the function firstFunction?
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Jun 28, 2011
I am trying to essentially pass a string as a function name into an event listener, but I am not sure how to approach this. Is there a way to convert a string into a function?
Here is some code I have for me to show you what I am doing.
package{
//some import statements
public class changes extends MovieClip{
[Code]....
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Jul 5, 2011
I have this keyboard event listener to listen for key_Down of letter A and D but I end up with and error:
1119: Access of possibly undefined property A through a reference with static type Class.
When I use
function rotate(evt:KeyboardEvent):void
{
if (evt.keyCode==68) {
evt.currentTarget.rotation = 90 }
[Code].....
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Jul 6, 2011
The keyBoard event listeners call on the rotate and unrotate functions and based on the key inputs(A and D) will implement either of the functions and rotate the image or return it to the original upright position. However, I haven't been able to get the function to work. When I press the A or D keys on the keyboard nothing happens. I even put trace() in one of the functions to see if the function will even be implemented but I don't get anything. I put in my Scripts below. Why are the functions not working? Do the eventlisteners fire or are there conflicts?[code]...
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Jul 10, 2011
Here is the code to call function using event listener:
var listListener:Object = new Object();
istListener.change = function() { changeImage(); }
thelist.addEventListener("change", listListener);
[code]......
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Dec 30, 2009
I've got a button that i dynamically add different event listeners to. Anyone know how to remove an event listener without actually referencing an actual function name?
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