ActionScript 3.0 :: How Does Event.ADDED_TO_STAGE Work
May 5, 2010
I'm attempting to initiate a set of variables within a movie clip myElement as soon as it's dynamically loaded onto the stage:
frame1 within myElement:
PHP Code:
this.addEventListener(Event.ADDED_TO_STAGE, initiateVars); function initiateVars(ev:Event):void{ var currentY:int = this.y; var currentX:int = this.x; }
I'm trying to make this happen only once, and only when myElement is first placed on stage, but the code above doesn't work. Am I misusing the ADDED_TO_STAGE event?
How does the ADDED_TO_STAGE work? I have a class but it doesn`t work outside the document class. How do i create a new instance of the class i have? It throws me an Error #1009...
this is the class... it works if i put it in the document class field...
I'm getting this weird glitch where the added_to_stage event seems to be dispatched twice when I construct my object.Now I know that my constructor is not being called twice cause I traced a string before the event listener, and it only traces once but I traced the same string within the listener handling function body and it traced twice.
public function main() {<<<< CLASS CONSTRUCTORthis.addEventListener(Event.ADDED_TO_STAGE,startapp)}private function startapp(event:Event):void{trace('start app') <<TRACING
I have an error code #1009 and have been googling around and found a lot of links, yet I'm not sure where to put the Event.ADDED_TO_STAGE to make my project work. The error code is
I'm using flash cs3. I'm trying to to add the eventlistener on a movie clip timeline (frane 1) that is in the library. If the code is in the timeline then the event is never registered when flash adds it to the stage. If however I put the code into an external class (doing the linkage stuff) it works fine.
well i have a problem to which there are lots of related searches over the net but none could solve it. well the problem is that i have an XML driven carousel menu that needs to be loaded using the preloader. After the load is complete i can find my swf menu's backgound and the static buttons getting loaded but the buttons that should load in the carousel using xml are not present.
I have come across the even ADDED_TO_STAGE to load the swf once it has completed its dynamic loading. But they have used it in the documentation class for thier project. I am not using any separate actionscript file.All my code is written in the 1st frame of my project .... I really need a solution to this problem
I've built a UIComponent in AS3. When I drag it onto the stage during authoring time, the ADDED_TO_STAGE event fires.
I have an event handler, but it's really only meant to perform actions at runtime, not when I'm dropping the component onto the stage to design the layout. Is there any way to check to see if the component is "running" in a live SWF?
Basically, I don't want the ADDED_TO_STAGE event handler to do anything at design time.
I've got a class which attempts to call a method upon Event.ADDED_TO_STAGE firing. Instances of this class are obviously added to my stage (I can see them) yet my onAddedToStage method never gets called.
HTML Code: package { import flash.display.MovieClip; import flash.events.Event;
despite using ADDED_ON_STAGE it is throwing TypeError: Error #1009: Cannot access a property or method of a null object reference Below is my code of main class and menuScreen class.
MAIN CLASS
ActionScript Code: public class main extends MovieClip[code].....
I made the following discovery while attempting to use the ADDED_TO_STAGE event with timeline code. I don't know whether to say it's a real problem, or maybe it's just an observation, but it's very simple to demonstrate. Just make a MovieClip symbol in the library, and set it for export. On frame 1 of this MovieClip symbol, enter this code:
(Note: I called my MovieClip symbol Screen1, and gave it a class name of Screen1 when I set it for export. But I am letting Flash create the class for me, there is no same-named class in the classpath)Next, put this code on frame 1 of the main timeline:
ActionScript Code: var screen1:Screen1 = new Screen1(); addChild(screen1);
Looking at that latter code, apparently when the screen1 instance is created in line 1, the object hasn't fully finished instantiating before line 2 is executed,because the trace message never happens.Prior to this, I had assumed that code on frame 1 of a MovieClip, if it were "base level" and not inside any functions, was roughly equivalent to the constructor of a class. Apparently that isn't so, because whenever I add an event listener for ADDED_TO_STAGE in the constructor of a class, it always works, even if the object is immediately added to the display list, exactly as above.
In some of my other testing, if the movie clip instance is later removed from the stage and added again, the added and removed handlers fire just fine. It's only this initial time that it gets skipped. Also, if you add an event listener for ADDED_TO_STAGE from the main timeline instead, like this:
It works just fine.The conclusion I draw from all this is that there is no way to use the ADDED_TO_STAGE handler inside a MovieClip's frame code and have it fire the first time. Also that there may be no real equivalent to a constructor when you let Flash create the class for you. Thoughts, anyone? I am attaching a FLA file (CS4 format) in case anyone might want to examine this without putting a file together yourself. Don't expect anything at all fancy, though, it's nothing more than what I described above, and I fully expect you'll want to delete it later.
Im trying to work with the Event class in actionscript 2.0 but its not working. Im actually working on xmlsockets. I have imported the xmlsocket library but it failed to load.
I have an issue in handling the F5(Refresh) option in IE8 using FLEX. As i got some code by surfing..which is as follows
public function handleKeyDown(event:KeyboardEvent) :void { display.text = "Key was pressed: " + event.keyCode; } ]]>
The main intention of the code is to handle F5(refresh) event. It works fine in Mozilla, GoogleChrome but not in IE8. When i execute the code in IE8 before the event handle by the FLEX the browser is handling the event.
I'm creating a minesweeper game as my first flash project, but I'm already stuck on something technical. I have created a button named Button which contains a bitmap. I have a lot of instances of that button on stage, and they are put there by actionscript using a for-loop. Their instance names are button0, button1, button2, button3, etc.
This is the code for the eventlistener: It's in the first keyframe of the actions layer. var buttonListener:Object=new Object(); buttonListener.click=function(evt:Object):Void{ trace("clicked"); } for (i=0; i<rows*cols; i++) { eval("button"+i).addEventListener("click", buttonListener); }
I also noticed that when I do this for one button that I created myself and put on the stage manually, this also doesn't work, but when I pick one of the predefined buttons, it works just fine.
Just using the script below to output the key that is pressed in the output but I get the "Cannot access a property or method of a null object reference." warning on the addEventListener line, which I assume is because of the "stage" var. How do I correct that?
The mouseOver event doesn't work should be pretty basic but... y'know it's flash and that which should be simple is usually a PIA when you're an actionscript beginner
I decided to pick up a copy of O'reilly Actionscript 3 Cookbook today, and I have been going through. One of the first examples it has for keyboard events is:[code]But for some reason it will not work. According to the book stage.focus = this; is all you need for keyboard events to work, am i doing something wrong?
I'm dynamically creating movieclips and using loadMovie to load jpg images from an xml file. But I cannot get the onRollOver, or any other event handler to work. Here is my code:
Code: var images:XML = new XML(); images.ignoreWhite = true; images.onLoad = function(success:Boolean):Void {
[Code].....
I used the home_mc._x and home_mc._rotation to let me see all the photos and try the onRollOvers and test to see if they all got loaded, which they did just fine.
and I have the ClassPath pointing to the folder that contains this .as file. I do get the trace "In setUp" but I'm not getting seeing any Keyboard events. There also aren't any errors showing up in output so I am kind of stumped.
I've got 2 AS3 files going here, the document file "Main" and a "Fence" file..[code]For some reason the ping comes up, but the pong doesn't, it's starting to bug me now that the "onFenceAdded" wont even work, what have I missed? Is there some way to check if Flash is compiling correctly? I often find these weird problems where I'm sure I've done it all correct, but when I try to compile and run a swf it wont work!
the custom cursor is a sprite. using it to click another sprite no longer triggers the MouseEvent.Click event. it looks like my custom cursor is being clicked on the sprite i want to click
I have a CustomTextInput component based on TextInput (Spark) component. The instance of this class is placed on a popup window (TitleWindow). How can I capture the popup move (dragging the title) event inside CustomTextInput implementation?
MoveEvent.MOVE event of the CustomTextInput itself doesn't work. Of course, I can't access the parent popup window inside the component implementation, because it's a common component that can be used not only on the popup windows.
