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.
So I have an object, generated on each click of the mouse. It's set up as a series of points with properties, with values for position randomly calculated, and set around where the user clicks the mouse. Lines are drawn from where the mouse is clicked out to each of these points, so it kind of looks like a star, but only lines, rather than a solid shape (like those old 50's atom clocks?). So once clicked there's an enter frame event listener on the object so that each of the points 'wobble' (using a randomly generated number) up and down around the original point.
For some reason, I can either set it so that on each new click of the mouse and newly generated object, the last one stops "wobbling" and only the new one does, or each new object moves to where the new object is, and maybe is still wobbling(?), but is underneath the new object. This way has the event.target as a new object in the wobble function, so I think it may be just a case of where the centre point is - i.e. saving the mouse x and y for each object individually, or perhaps I have too much of the setup function code repeated in my "wobble"function?
[Code]...
In 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
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 RepliesI am having trouble clearing out a shell movie clip that has other mcs dynamically placed inside it. Something like this;
var myShell:shell_mc = new shell_mc;addChild(myShell);//
//---obviously these buttons are on stage already---buildBtn_mc.addEventListener(MouseEvent.CLICK, buildFunction);clearBtn_mc.addEventListener(MouseEvent.CLICK,
[Code]....
I have problem with casting custom event currentTarget to component. When I'm trying to removeElement from its parent container i get error. What's the deal?
TypeError: Error #1034: Type Coercion failed: cannot convert mx.events::FlexEvent@8811c41 to com.modultek.pis.itemmachine.search.events.SortEvent.
private function sortSelection_removeHandler(event:SortEvent):void
{
var sortSelection:SortSelection = event.currentTarget as SortSelection;
this.removeElement(sortSelection);
}
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 am new to ActionScript 3. I found the code to create a setof radio buttons - the problem is that each time I call asubroutine, it seems to create a new set on top of them (hence theyget darker each time someone clicks them. I need to be able toclear them from the stage and start over - basically the codecreates a set of radio buttons, and then a set of radio buttons foreach of the main buttons created. I've tried destroy object -generates compiler errors.
View 1 Repliesevery so often a movieclip is dynamically created using actionscript from the main timeline. It has the instance name of
Code:
["spark" + i]
each time one is created "i" goes up 1. so I end up with spark1, spark2, spark3, spark4 etc. etc.What they need to do is play through an animation (about 4 frames) and then destroy themselves.
I'm trying to call an event I've created in another component. I've added trace() into my methods so I can see what's being called. Everything except for the event listener (myEvent) is being called.
// TestApp.mxml (application)
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
[Code].....
Say you create a dynamic movieClip, and also dynamically add an event listener to it.Then you addChild the clip.Now it comes time to get rid of it - you want to get rid of the object and it's event listener.[code]What I'm trying to do is have a close button on each movieclip that when clicked, runs a function to remove the clip and it's children from display and also remove references to it so that it can be ready for garbage collection.
View 2 RepliesI'll present my problem in a few steps:
- I have a constructor method which is trigerred automatically once the program starts
- The method's argument determines whether or not an enter frame event is to be added(move:Boolean = true)
- If true, add the event listener
- there are getters and setters created to access the variables from another class
The problem is that the event listener is run only once - at the initial phase, so it checks the move's value just once (true - add, false - don't add), so it can be turned on and off only in this class. I want to allow a user to change its value from an external class, which is impossible even with getters and setters, because it adds the listener before the user even gets a chance to change it. I want the listener to be added only if the user wants it to. I know it looks complicated,
trying to create a menu dynamically from an array. I know there is a way to circumnavigate the issues i am having by making another array with linkNames in it (i think), but im trying to understand why this isnt working. Check this out.
Code:
var playerArray:Array = ["THIERY","FIGO", "RONALDINO", "WAYNE"];
var contents:MovieClip = this.createEmptyMovieClip("contents", this.getNextHighestDepth());[code]....
'currItem.currVar', in my eyes, should be assigned the value of 'i' at that time in the loop, then move on to the next currItem right? Tracing 'currItem' traces 'menuItem. menuItem'+i to the output window fine, so im assuming that currItem is indeed a reference to a unique clip to which assign an action. The catch is, its not assigning the action I want, its assigning the value of 'i' at the end of the loop to all currVar's.I recently read a post explaining this conumdrum, stating that "variables are not "burnt" into functions when they are placed there. They will reflect the variable, where ever it may exist at the time it was requested, not at the time the function using that variable was defined," but in this case,since I am assigning the value of 'i' to anothing variable inside my dynamic movieClip.
I have this code inside a for loop which is inside a function:
Code:
_root["track" + i] = new Sound();
_root["track" + i].loadSound(extTracks.data.tracks[i], false);
createOnLoad("track" + i);
[Code]....
When i test the movie in flash itself everything works fine, but when i open the movie in IE or the stand alone flash player, details_txt and length_txt are both empty.
does anyone have a tip on how to "bind" events to dynamically created movieclips ?
[Code]...
i have a movieclip named "mc" and i want to load many images in it and add on press event to those images.
For that, i have a button which is when click adds images to movieclip "mc".
I created empty movie clip in "mc" and loaded that empty movie clip with images. But i m not able to attach on press event to that empty movie clip.
Here is my code:-
In button :-
on(press)
{
_root.fun();
[Code]....
I even tried to add listener to movie clip (commented portion in above code) but that also didnt work.
here's my code
createEmptyMovieClip("myMC",0);
// load a jpg
myMC.loadMovie("myImg.jpg")
[code].....
I've created a drop down list and populated it with dynamic buttons. (I made a DropDown_btn class with a dynamic text field in it and then filled the button text from an xml file). On rollover I tint the button blue and then set the tint back to black on rollout. When you click on the button I'd like it to stay blue until a different button is clicked.
I thought on CLICK I'd run a function like this:
ActionScript Code:
function removeRollover(evt:MouseEvent):void {
evt.target.transform.colorTransform=c;
evt.target.removeEventListener(MouseEvent.ROLL_OUT, btnOut);
evt.target.removeEventListener(MouseEvent.ROLL_OVER, btnOver);
}
...and then I need to addEventListeners back to any button that doesn't have them and set that button back to black. I could do this by looping through an array of the buttons but I can't figure out how to access them as objects.
I also gave them each a property of "buttonValue" when I loaded them so I can access event.currentTarget.buttonValue (which in this case is a number from 1-5) but once again I can't figure out how I might leverage this information.
I'm using Flash Remoting to grab a result set from a SQL Server database. Then, using the total records in the result set, I'm creating the respective number of movie clips on the stage. Each of these movie clips is an instance of the "button_mc" movie clip I have in the library, named "button_0", "button_1", ..."button_n". The library movie clip that I'm using to create the instances contains a standard Flash button.
Anyway, that part is working fine. What I want to do is dynamically generate the onRelease event handler for each of these unique buttons. When I try to do this within the for loop, it sets all the event handlers to the last item in the list. What I want to do with the event handler is change the text of a dynamic text field based on the button name.
e.g. buttonName.onRelease = function() {
myDynamicTextField.text = "button_"+i;
}
In some ways it makes sense that the event handler is always going to be the last available in the loop, as the handler is called after the loop is completed. However, I'm hoping there's a way to make the handler "stick" after the loop is completed.
I am trying to use the ENTER_FRAME event with a number of dynamically created movieclips and it is not working.The swf features a series of five clock faces that the user will select by hitting the appropriate button. Each clock has five unique movieclips to that season including a second hand, a minute hand, a main character, a seasonal clock face and a back ground, again, each of these MovieClips are different on each of the five clocks. So I have a series of five listeners for each of the buttons:
spring_btn.addEventListener(MouseEvent.CLICK, startSpring, false, 0, true);
winter_btn.addEventListener(MouseEvent.CLICK, startWinter, false, 0, true);
...
then the associated functions to the mouse event looks like this.
function startSpring(){
var mBack:springback = new springback();
var mFace:springface = new springface();
var mChar:springchar = new springchar();
[code]....
I have a Tree, which has an itemRenderer. On the itemRenderer, driven by the XML conditions, objects are created dynamically and added as a children to nodes. These new objects shall trigger an event handler ( some click events mostly ). How do I pass the event handler to the tree and later to the dynamically created new objects inside itemRendere?
Something like:
<mx:Tree x="534" y="49" newObjectsOnClick="newObjectsOnClickHandler">
I'm dynamically creating movieclips with dynamically created movieclips inside them and am having trouble with targeting them.Below is a simplified example of what I'm trying to achieve, in the real file there are a lot more movieclips and I'm creating and naming them with a for loop.
This one is just one Sprite created inside another sprite. I can target the top level sprite named "testname". However when i try target the nested MC it throws an error.The bottom couple of traces are just test MCs I've made to make sure i got the syntax right, on targeting nested movieclips.
PHP Code:
var holder:Sprite = new test1();holder.name = "testname";this.addChild(holder);var holder2:Sprite = new test2();holder2.name = "testname2";holder.addChild(holder2);trace(getChildByName("testname").x); //this one traces finetrace(getChildByName("testname").getChildByName("testname2").x);//this throws up an errortrace(testclip1.x);trace(testclip1.testclip2.x);
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]..........
Basically, the effect I'm going for is, you click on a button that calls an mc to the stage and blurs everything below it. Within that mc is a button that when clicked, should remove both the mc and the blur filter.This is the code I have. (Also, just ignore my stupid function names. I pretty much just name them after the next word I hear in the song I'm listening to :)Main Timeline:
Code:
hint.addEventListener(MouseEvent.CLICK,manipulation);
function manipulation(event:MouseEvent){
[code]....
I have a game where i add some cartoonish ants, that when they are clicked, they need to be removed from stage. There are 4 differend kinds of ants, so im doing a Math.random for picking which one to add. (ant 1+2+3 have 50% chance to spawn and 4th 50%)
Code:
rnd_nbr = (Math.random() * 5)+1;
I have a timer doing 10 tick, and i reset the timer to make neverending. Then i have a math random and if sentences adding mc' to the stage with movement from Tweener, and event listeners for clicks. But i cant figure out how to remove them when clicked. I have done alot of failed tries right inside the click_candy_anty function. I've left them commented out.
Code:
import caurina.transitions.Tweener;
var ant_index:Array = new Array(10);//index for ants
var ant_number:int;
[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 Replies
