Actionscript 3 :: EventListeners In Nested Functions?
Mar 12, 2012
I've got a few MouseEvent listeners outside of a function that contains nested functions that need to use the functions attached to the listeners.
button1.addEventListener(MouseEvent.ROLL_OVER, buttonOver);
function navigation (): void {
if statements;
[code]....
I keep getting an "1120:Access of undefined property buttonOver" error. I know it's because the EventListener is outside of the function "navigation" but I need it to be accessed by other functions later.
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Apr 6, 2009
Say I have this code:
Code:stage.addEventListener(KeyboardEvent.KEY_UP, reloader);
function reloader(e:KeyboardEvent):void {[code].....
and this:
Code: var reloadT:Timer = new Timer(2000, 2);
reloadT.addEventListener(TimerEvent.TIMER, on_timer);
reloadT.start();[code].........
So I have a code that tracks Key_UP and one for a timer. However, I want to somehow use them together, like inside each other: ex. Run the timer function in Key_UP.I want to trigger the timer only if Key_UP is found. How would I do this?
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Dec 26, 2010
i want to be able to call the function keyDowns() from my main file on ENTER_FRAME. However, i can't seem to get the syntax/definitions right. here's the function within class Hero:
ActionScript Code:
public function keyDowns(event:KeyboardEvent){
if (event.keyCode == 65){
[Code]....
then in the main file i create an instance of Hero called turret i want to call turret.keyDowns() every frame. i'm trying to use this, but i get an error message "1120: access of undefined property event."
ActionScript Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, turret.keyDowns);
turret.keyDowns(event);
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Nov 1, 2008
The code I'm building creates two MovieClips on the stage, in one it instantiates several text boxes and in the other some buttons.
What I can't do is access data from the text boxes (e.g. textField.text) for use in the functions called by the eventListeners attached the buttons. I had the system all working nicely before I placed the text boxes and the buttons on separate movie clips.but this structure makes it much tidier to refresh the text I'm using.The button functions are fine with variables created prior to the building of the text boxes.
Am I failing to address the text boxes correctly (because they're on another movie clip) or is there a stage / movie clip property I need to set so they can see each other ... or is this something else altogether?Could it be that the buttons are created before the text boxes?
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Mar 14, 2012
I initially posted this in the AS3 NEWBY forum but I think it probably belongs here. On stage I have 5 boxes, the letter A and two buttons labelled button1 and button2. The letter A is also defined as a button labelled AA_btn. When I click on button1 I want a condition to be set so that if the letter A is clicked, boxes 2 and 4 will disappear. Conversly if I click on button2 I want boxes 1, 3 and 5 to disappear. To do this I have nested the letter A and B functions under the button1 and button2 functions.
I also have a reset button which resets the display of all five boxes back to their original display.Everything works fine when I press Button1 to set the first scenario. When I then click on the letter A boxes 2 and 4 disappear. (perfect). Everything also seems to work when I press the reset button, ie: all five boxes reappear.
[Code]...
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Sep 10, 2009
when using nested functions in my code. It's very easy to want to do something like this:
ActionScript Code:
private function someFunction():void
{[codee].....
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Aug 16, 2005
I have a few rows of movie clips making a menu. Because I will be adding to the number of MC's I use a variable called "menuitems" and run a FOR loops to assign all of these MC's onrollOver, onrollOut and onRelease functions. I'm doing this to save having to assign these functions to them individualy (as they are the same functions). Its works fine, but when the MC is released it is told to jump to frame 2, where there will be nested mc's that need to be able to clicked and rolled over. Because the parent movie has event functions assigned to it they seem to overide them. Is there a way around this? I tried placing a transparent MC on the 1st frame of the movie and trying to assign the onRelease function to the "hotspot" but it doesnt work. Here is my code:
Code:
function buildthumbs () {
for (i=1; i<= menuitems; i++) {[code]...........
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Apr 18, 2007
I have this menu_mc appearing on stage on RollOver.Inside this menu_mc are 5 other mcs that are also supposed to react on rollOver.But : the rollOver works only on the menu_mc, the rollOver on the nested mcs no. I put all the script on the main stage, accessing my nested mcs with the "insert target path".I tried also to put the script of the nested mcs inside the menu_mc movie clip, but it does not respond.What do I do wrong ?
import mx.transitions.Tween;
import mx.transitions.easing.*;
orig = Menu_mc._x;[code].....
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Feb 1, 2010
I'm starting to get a handle on some AS3 basics in terms of building nested classes or packages or whatever the proper syntax terminology is.
Now I have two instance functions:
1 - parseXML
2 - loadImage
I have these 2 functions working together using an eventHandler. Once the XML is parsed the aim is to load an image. Sounds pretty common right?
When the image loading commands are in the parseXML function they work fine. But then when I put the image loading commands in separate function titled loadImage and trigger it using an eventHandler onComplete, it loses my variable and instance definitions.
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Jan 31, 2009
i have a nested swf that functions just fine.i have a parent swf (that holds the nested swf) that has a button (not related to functions of nested swf) that no longer works when combined.the button is simply a link button to a url... is there a very simple solution to this?
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Jun 22, 2009
How can one class access a nested function in another class.Examplish.
Code:
main class{
public function main(){
[code].....
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Nov 9, 2004
I have run into this problem twice now, for two different reasons. Technically the more recent time it isn't a roadblock, but rather I just want to avoid memory waste by not using nested functions for my event handlers.[URL]
The reason I've come to this forum is that I always went on my merry way, defining event handler functions on movieclips within functions, until today, I read "I really didn't like the idea of defining an event handling function within a method of a class. I don't think nested functions are a really good practice." in the archives of the BIT-101 blog. So I decided to try to extract these and assign only a reference to each movieclip that needs the function. The problem is, it's in a class - and I need access to the properties of the movieclip from within the function. I figured I might be able to extend MovieClip, but I don't want anything in the library, so I run into the problem of how I would use my new movieclip-extending class - I read something about using the Linkage name of "__Packages."+[classname] - is that really proper? Either way, my final question is - if it's not good practice to use nested functions within the class, where do I create my event handler functions?
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Apr 29, 2011
[code]...
And I have a mc on the stage that have a code inside to attach a scroll from the library. This scroll load a mc called "Rotuladores1", and inside this mc I have my button "r1".[code]...
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Feb 18, 2009
For some reason I can't get this nested set of functions to work, it executes the first tween and the tween invoked after motion of the first is finished but it doesn't ever get to the third!
ActionScript Code:
var t1:Tween=new Tween(p1,"rotationY",Strong.easeOut,90,0,50,false);
var t1x:Tween=new Tween(p1,"x",Strong.easeOut,-900,0,50,false);
t1.addEventListener(TweenEvent.MOTION_FINISH,onMotionFinished);
[Code].....
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Aug 11, 2009
I have my function on frame 1
Code:
function backhome(event:MouseEvent):void
{
this.gotoAndPlay("mapbegin");
}
At frame 10, I have a movie clip that animates and stops. Inside of that movie clip is a button that I want to go back to frame 2 when someone clicks on it. I want to be able to click on that button and call the function above.
panamacitybeach.returntomap1.addEventListener(Mous eEvent.CLICK, backhome);
When I put that code on the movie clip keyframe on the root timeline, I get this error.
TypeError: Error #1009: Cannot access a property or method of a null object reference. at intmap_fla::MainTimeline/frame1()
The addEventListener is laying on the keyframe in which the movie clip is. Why can't I call that function later on where the movie clip shows up?
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Aug 21, 2010
I'm having problems with the scope of nested functions. I have a movie clip: "MC_clip" inside that movie clip there is a button: "inside_button". when users press "inside_button", I want the movie will jump to play frame 5 (main time line). how do i refer the stage from inside a movie clip?? another question is about the other way: how can I call to a function that is declared inside a movie clip?? is that movie clip have to be an instance on the stage??
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Aug 11, 2009
I have my function on frame 1
[Code]....
At frame 10, I have a movie clip that animates and stops. Inside of that movie clip is a button that I want to go back to frame 2 when someone clicks on it. I want to be able to click on that button and call the function above.
[Code]....
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May 23, 2009
How would you go about accessing a function or variable from a parent clip if the clip accessing has been loaded using the Loader() constructor in AS3?
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Mar 6, 2009
Let's say I have a global SoundChannel object, and inside a function I am repeatedly creating new instances of the Sound object to play songs one after the other. Each time I do this, I need to add a new eventListener to the SoundChannel to call the function 'onSoundComplete' that will load the next song on completion.Coming from a strict C++ programming background, I often wonder if it's necessary to do some kind of cleanup in Flash, or if it handles it automagically.Here's example code that specifically removes the eventListener from the previous Sound object everytime a new one is created, but I don't want to be doing this if it isn't necessary:
Code:
// Setup sound object buffer
var slc:SoundLoaderContext = new SoundLoaderContext(3000);
[code].....
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Aug 16, 2009
I have images loading from an array. A slideshow. This works fine, but they pile on top of each other. I cannot figure out how to remove them. what's the simplest way to remove them? How do I say - if pic1 is loaded, before loading pic2, remove pic1?
Code:
var aPics:Array=new Array("pic1.jpg","pic2.jpg","pic3.jpg","pic4.jpg","pic5.jpg");
var threeSeconds:Timer=new Timer(3000,aPics.length);
threeSeconds.start();
[code]....
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Dec 15, 2011
I'm trying to use an eventlistener in a class, but I can't make it work!
The class is ment to handle a HTTPRequest, so I'm using ResultEvent.RESULT.
public class GetXML
{
public var content:Object;
public var url:String;
[Code].....
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Feb 7, 2009
Can I add eventListeners to shapes ?
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Apr 18, 2009
Trying to add EventListeners to Bitmaps.Can I add an EventListener directly to a bitmap?If I load an image to a UILoader then addEventListener to the UILoader instance that works just fine, but if I use a Bitmap instead, nada...I could load the Bitmap into a Sprite and add the EventListener to that, but would prefer the direct method...
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Nov 11, 2009
Is there a way to listen for the cursor in the input text field? I am making a form, and when the user clicks on the input box I want text to appear to the right side and than fade when they leave that text field.
the text field is called input_txt;
psuedo code
input_txt.addEventLister(event.MouseEvent, showText);
function showText(evt:MouseEvent):void{
text_mc.visibile = true;
}
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Jun 6, 2009
I'm working on an image gallery which builds dynamically at runtime, simple enough.imageList is an array loaded with the images to display.
var imageList:Array = _root.images.split(",");var imageArray = new Array();var count = 0;for( var i = 0; i < imageList.length; i++ ){ _root.createEmptyMovieClip("myMC"+i, (i + 1)); _root["tmpMCL"+i] = new MovieClipLoader(); imageArray[i] = new Array(); ima
[code].....
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Jun 11, 2010
Inside a .fla file I have some buttons and each button will tween a different image to the stage. All the images are outside the stage in the same x and y position and I just need to tween the x coordinate.
Now I'm working with an external document class where I'm trying to hold all my functions and I'm stucked with the Tweens. I'm willing to stay away from the flash tween engine and I'm trying to work with tweenLite.
Is it possible to pass parameters through eventListeners so I can use something like this inside my docClass?
public function animeThis (e:MouseEvent, mc:MovieClip, ep:int):void { //ep stands for endPoint.
TweenLite.to(mc, 2, {x:ep});
}
If this is possible, how am I supposed to write the listeners so it will pass the event to be listened for AND those parameters? And how to build the function so it will receive those parameters and the event?
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Aug 13, 2009
im trying find out a value of a var from a mc called from an eventlistener.
//////////// as2 oldSchool ////////////
function loadPlayer() {
trace("myScene: "+this.myScene)
[code]...
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Aug 19, 2009
I have main.swf and content.swf. I load content into main. When I try to unload it gives me error, due to the fact that in my content.swf I have MouseMove event and this event is causing this error:
ActionScript Code:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at content_fla::MainTimeline/onLoop()
How to properly kill all eventListeners?
My main.swf code:
ActionScript Code:
var holder:Sprite = new Sprite();
addChild(holder);
[Code].....
I did some research and it seems quite an issue - especially when trying to remove, enterFrame, mouseMove or stage listeners. Im using CS3.
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Sep 28, 2009
I tried using a .enabled = false; when I already had a click event on that movie clip. I found that you need to remove the eventlistener instead of making enabled false.Why doesn't enabled work when you have event listeners?I'm really more curious than in need of an answer since removeEventListener worked fine.
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May 13, 2010
I have this code (for now, but there will be much more eventListeners) and i want to generate them dynamically.
Code:
s1.addEventListener(MouseEvent.CLICK, function1);
s2.addEventListener(MouseEvent.CLICK, function1);
[code]........
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