Iīd like to know if itīs necessary to remove event listeners from buttons. I know it's good practice to remove event listeners when its use is over. But itīs necessary to remove event listeners for buttons as well?
View 1 RepliesIn the following code...
Code:
function makeTheCall(){
var _loader:URLLoader = new URLLoader();
_loader.addEventListener(Event.COMPLETE, handleOnComplete, false, 0, true);
[code]....
...how would I remove the listener?
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.
I'm trying to build a scrolling thumbnails from scratch for my first time and i can get the thumbs to scroll when the mouse rolls over the scroll arrow, but i can't get it to stop scrolling once the mouse rolls out.
leftscroll_mc.addEventListener(MouseEvent.ROLL_OVER, scrollLeft);
function scrollLeft(e:MouseEvent):void {
addEventListener(Event.ENTER_FRAME, goLeft);
[Code]....
I've tried moving the entire roll_out function all over the place but I would get errors not being able to find lremoveFast but either way I can't get it to funciton
i have a movie clip named "contact" inside this movie clip made the same object into a 2nd imbedded movie clip named "em_contact" inside this I did a frame by frame animation and added a new movie clip symbol of a piece of paper named contactbtn_mc on this frame, I added an event listener for a click that acesses on the root level a symbol named contact_mc i told it to go to and play frame 2 that plays out an animation of this object moving into the screen.
my problem here is i asked earlyer on how to stop the em_contact to stop listening for the mouse click once it is clicked. I made the code it come up with no errors but it does not stop the event listener the event listener is still there bellow is my code.
import fl.transitions.Tween;
import fl.transitions.easing.*;
import fl.transitions.TweenEvent;
import flash.events.MouseEvent;
[code]....
what i want to happen here is for the event listener once it is click to stop listening for that event becuase i have a mouse event inside the "em_contact" movie clip on an object named "contactbtn_mc". and that one has a click event on it as well but when i click on the contactbtn_mc the animation above plays out as well.
I'm having trouble removing the an event listener as well as the sprite at the same time. I currently get an error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
And if I comment out removeChild, I have no error but, obviously, the sprite remains on the screen. how I can rid myself of that error?
//Bullet extends Sprite Class
bullet:Bullet = new Bullet();
mc.addChild(bullet);
[Code]....
I'm trying to build a small game to try and get into ActionScript. This is my first real attempt at ActionScript.Currently I have an Enemy superclass and an Enemy_One class that extends that superclass.When an enemy has moved off screen I want to remove it from the frame. Here's the errors I'm getting:
Code:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Enemy/checkHitPlayer()
at Enemy/loop()
Enemy.as
[code].....
I've dynamically created event listeners in the usual sort of way:
Code:
myText.addEventListener(MouseEvent.MOUSE_OVER, hover(nameLabel));
function hover(nameLabel):Function
{
[Code].....
The problem is how to remove the event listener later in the program as the usual code isn't working. I'm guessing I should have done this in a class but I'd like to understand this problem better.
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]........
I want to setup an event listener on buttons that are on two different frames of "TabContent" (tabs) on my page. I can set up the event listener on the first tab without any issues, but how can I locate the second frame to add an event listener there at the same time?
View 12 RepliesBasically i am loading a series of URLs in from an XML file and i want to assign them to each button on stage (the number of buttons on stage and the number of URLs in the XML doc will match). They will correspond, so myButton1 will go to the first URL in the XML file and so on. I also want to declare button mode true on all the buttons on stage (they are actually movie clips) but i just don't know the syntax of how to do it in a for loop without writing the whole thing out in a really long winded way.Here is my code:
Code:
var myXML:XML;
var buttonURL1:String;
[code].....
I was wondering if I had say 10 buttons and I wanted to add them to one event listener, is there a way to set up an array and attach them all to one event listener to cut down on code?
View 1 RepliesI've been lookign around for this but cant seem to find how to do it. How do you make a array of buttons then call it in a event listener? The idea is that I don't have to creat code for each button. it can just run it over for each button.
View 3 RepliesThe fastforward and rewind buttons on the FLV Playback components don't work like normal ones. If you've tried to use them you'll notice that they respond to a click event rather than a mouse_down event.
By taking apart one of the skins I've found that the fast forward movie clip is forward_mc.
How do I create an event listener for the buttons inside the FLV Playback Component?
If the instance of my FLV Playback component is called "movie," how do I access it? I've tried this, but it doesn't work:
[Code]...
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]..........
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.
View 3 Repliesi have this function to enable the enter key
Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, KeyDownFunc);
function KeyDownFunc(event){
if(event.keyCode == Keyboard.ENTER){
[Code].....
I 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?
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?
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.
View 3 RepliesI'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.
View 1 RepliesThis 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]..
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.
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]..........
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.
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]....
It is only targeting the movie clip, not the buttons inside the movie clip.
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]....
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
var coordX:Number = shaker_mc.x;var coordY:Number = shaker_mc.y;var timer:Timer = new Timer(10); shaker_mc.buttonMode = false; shaker_mc.addEventListener(MouseEvent.MOUSE_OVER,startShake);shaker_mc.addEventListener(Mous
[code]....
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.
The MetaData and function that dispatches the even in the component printableInvoice is all right. It I instantiate printableInvoice as an mxml component instead of via action-script it well let put a tag into the mxml line: batchGenerated="someFunction()
I set a value to my xml object (xml = new XML(e.currentTarget.data);) during my event handler function (the function is executed after the event.COMPLETE) and if I trace the object inside my event function handler it shows my xml data.but if I try to trace it outside the event handler function it doesn't show my xml content. Isn't there a way to get my xml object content value to show in an other function but not in the event handler function?
private var xml:XML;
public function XMLLoader(xmlURL:String)
{
var xmlURLRequest:URLRequest = new URLRequest(xmlURL);[code].....