Actionscript 3 :: Symbol Binding - Each Copy Of The Anonymous Function Gets Bound To A Single Reference To F?
Apr 20, 2011
I'm new to AS3, and can't figure out why this loop isn't behaving the way it "should."
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How can I give each anonymous function a reference to each object represented by f, rather than a simple reference to f each time? Specifically, why is it that each copy of the anonymous function gets bound to a single reference to f? How (I should say why) exactly does AS3 differ from JavaScript in this regard?
I have an event listener with an anonymous function literal, rather than a function reference. What I am trying to figure out is how to remove that event listener.Obviously, I need a reference to the anonymous function, so the two functions are ===. But, something is going wrong... it just doesn't work, ad this situation doesn't generate any feedback to tell me what might be wrong.There is some good info here, but not a clear explanation.
Code: private static var _myFunc:Function; public static function addCreditsToolTip(clip:DisplayObject):void
In as3, I am adding event listener and then attaching the anonymous function to it:[code]Now this whole piece of code is looped n times. Now, I have n myBoxes and whenever I roll my mouse over the box, it should alert the name. But, what I see is that the last value of count is used by each box. How can I pass parameter or value to the anonymous function? ( as roll over , I believe, expects only one variable)
little bit what Im trying to do: I have 2 SWF, one.swf and two.swf 1 LocalConnection to send 1 variable from one.swf to two.swf
one.swf code:
var param:Number = new Number(5); var sending_lc:LocalConnection = new LocalConnection(); sending_lc.send("_Connection1", "myMethod", param);
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I need to be able to use param value out of the function, because a I need to perform a switch with this value, since the function wich receives de param value is an anonymous function I dont know how to do to get the value from outside the function because a dont have a reference name to the function so, the normal way to return a value is not going to do the job.
I am trying to play an MP3 File in Flash Lite 2.1 (I'm using Flash 8 to develop it). The filename of the MP3 file is imported from an XML file.Here is a copy and paste from the help file on how to do this:
// create a new Sound object var my_sound:Sound = new Sound(); // If the sound loads, play it; if not, trace failure loading. my_sound.onLoad = function(success:Boolean) {
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When I test this code on its own, it does work fine for me. However, I want the above to be executed inside a function that does a number of other things... Here is a sample of what I'm trying to get working.
function myMusic() { // create a new Sound object var my_sound:Sound = new Sound(); // If the sound loads, play it; if not, trace failure loading.
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I think it's got to do with the fact that once I put it inside a function you are nesting functions (there is a function call from the onLoad event).
I tried changed the line:
my_sound.onLoad=function(success: Boolean) { to my_sound.onLoad=myFunctionName(parameters go here)
and then I created a funciton called myFunctionName but I wasn't sure how to send the sound object or what parameters the function should have or how to get the .start() method to work inside the new function.
up.addEventListener(MouseEvent.CLICK, function clickFunc(event:MouseEvent):void { revealSpinner(event,51.42,1,spinner);
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The above code adds a listener to a couple of MC's. Originally the methods were anonymous but I have named them clickFunc() in order to try an reference them in my remove listener.
Here is my remove listener code. Both of these snippets are in separate functions. The add listener method is called before the remove method.
If I want to send an object to a function with one child called foo equals "bar", i need to do the following:[code]is there a way to declare the object in the function itself ? something like that:[code]
Getter functions allow obj.meth syntax instead of obj.meth(), I'd like to create an anonymous one of these to return from another function. function get ():Object { } is invalid syntax. I don't suppose Flex offers an easy way to get this functionality, if it's even possible?
I'm trying to differentiate anonymous functions like:
function() { trace("WOO"); }
from the other ones ('named'?) like
var _FUNC:Dynamic = function() { trace("WOO"); }
The reason I want to do that is because I can't compare between two anonymous functions, because they are two different ones.
var _TEST:Dynamic = function(a:Dynamic):String { var _TESTA:Dynamic = function() { trace("WOO"); }; var _TESTB:Dynamic = _FUNC; return (a == _TESTA) + ", " + (a == _TESTB); }
If I run _TEST(_FUNC);, I'll get back "false, true". Even though they are the same function, they are NOT the same object.Is there a way to compare those such that functions that they are the same if they perform the same task? Is there a way to serialize functions? So that maybe I can compare the serialized representations and see if they share the same 'code'.
In c++ if I have a function that takes a class I have defined elsewhere as a parameter like so:void moveto(CPoint2D point) { ... }I can invoke it and pass along data to it like this:moveto(CPoint2D(0,0));basically creating the object and invoking it's constructor to be passed to the functionIs there an equivalent to this in AS3?if I have a function like this:function initialize(min:Point, max:Point): void { ... }how do I do something along the lines of :initialize(Point(0,0), Point(10,10))This throws an error im assuming because it thinks I want to cast something to a point and the notation I found earlier to do something similar only seemed to work if using the basic Object class.
Is there a way to copy a single frame from an flv embedded video?
Every time I copy a single frame it always indicates "Copy Frames" insteead of "Copy Frame". When I paste the frame, all of the flv embedded video gets copied instead of the lone frame.
I have a layer with a bullet (graphic symbol) that flys out from the right and stops mid- stage, I am trying to copy this layer and have it do the same thing 3 times, to make 4 bullets that will be the BG for 4 text buttons I will make later, but I want to stagger their timing so they go with a sound effect.I am essentially trying to do exactly like the Duplicate Layer command in After Effects. Is there anything like this in Flash? I have even tried to do the more time consuming process of dragging another instance of my symbol from the library, but I keep getting the message "Do you wish to replace the existing tween target object", which also happens if I try to copy and paste the symbol.
I have a symbol that I have already used and I would like to use the same symbol in another frame(s), except that when i edit the symbol the original object also edits, for example if i delete a part of it, it also deletes in the object that I have already placed, I have tried the 'duplicate symbol' method but nonetheless my symbol still gets modified and changes the way I want it to show it in certain frames.
How do i get the hitTest() function to test if a certain symbol is hitting another symbol, but, only if drawn parts of the symbol are touching, not thier outer bounds.
In the code below, i create an object and stick it in an array, then I make a duplicate of that array. I loop though the duplicate and change the value of one of the props of the object in the duplicated array. Doing this however unintentionally changes the prop value of an object in the original array. I'm assuming that the objects in the duplicated array are mere references to the objects in the original array. Is this correct? And if so, how do i make unique copies of those objects in the original array, so that changes made to the objects in the new, duplicated array are exclusive to those objects?
I know that i could probably make a new object when duplicating the array, and then recreate each prop, assigning values from the original objects.. but this is a simplified example. The project im working on has many props for each object, so, id rather just make copies if at all possible.
Code: var testObj:Object = new Object(); testObj.prop1 = "hello"; // var testArr:Array = new Array();
I have a button labeled 'blueButton' and I'd like to use an anonymous function to handle the click, like so:
blueButton.addEventListener(MouseEvent.CLICK, function(event:MouseEvent):void { trace( "-----click detected-----" ); // now do other stuff });
Problem is, the click handler is called multiple times per click. The number of times called seems to be random (sometimes 2, sometimes 4, sometimes 3 etc). could I be missing something in my code, or maybe I set up the button wrong?
also I noticed that it seems to always get called once on the first click. After the first click is when it starts getting called additional times, maybe that has something to do with it?
I need to get a javascript var in my Flash application. I like to be able to just set a variable in the javascript (client constraints) rather than define a function.
Can this be done? I am trying to use the ExternalInterface.call()
I am trying to get just a single pose from an armature layer without copying the whole layer. I just want the exact arrangement of symbols from a specific frame of the armature layer alone; in one keyframe; without the armature; into a normal layer. I tried a few things, like breaking apart and copying the individual keyframe (ctrl+click on the frame I want and "copy pose"). I thought about converting an armature layer into a frame-by-frame animation so I can just copy the one frame like I want, but it's apparently not an option. When I tried the break apart option it just breaks down the first frame of the armature layer into one big vector graphic. I've even tried highlighting every frame except the one I want to use and pressing Shift+F5. Nothing I've tried so far works.
This is annoying because if I don't find a solution, I will have to take each separate symbol used in this frame of the armature layer and individually align them all in the exact same position in the normal layer
I have several components where I want to enable buttons based on passing a username to a function. I want to dynamically bind the "enabled" property on a button so that if the "somethingChanged" event fires, a button may become enabled or disabled. But, I'm not sure where to fire the "somethingChanged" event. It's possible that I may need to fire the "somethingChanged" event from several places in the application. Is this possible with a bound static function?
EventManager.as public class EventManager():void { [Bindable(event="somethingChanged")] public static function hasAccess(myVal:String):Boolean { }} [Code] .....
I've been trying to reference a Library symbol that is introduced in Frame 2 by using it's instance name, using timeline scripting only. I am trying to make a colour picker MC symbol for multiple re-use. Firstly I drew a small button on the stage and converted to MC, called textColourPicker of type CPicker (the class used to represent this MC in the Library). Inside this MC I have a button symbol called pickerButton
So I have a button on which I create an instance of a symbol, I'd like to have a listener for the new symbol but I get a reference error because it compiles the listener before I get to create the instance. What do I do?
How would I reference a button instance on the main timeline in the actionscript within a movie clip symbol?For example: btn1.addEventListener (MouseEvent.ROLL_OVER, main1Over);where btn1 is an instance of a button on the main timeline but is not found within the symbol itself.I will then be dragging that movie clip onto the main timeline when it's finished.
I'm having a problem in flex 3 where if a static const I have defined is used as the parameter to a function call within binding tags I get a "1120: Access of undefined property NodePropertyMatrix". _propMtx is a ArrayCollection.
I have a singleton class that looks something roughly like this (only with more bindable public properties):
public class Session extends EventDispatcher { private var _Id:String; private static const _instance:Session = new Session( SingletonLock ); private static const SESSID_CHANGED:String = 'SessionIdChanged';
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The abnormal behavior I'm discovering is that the event listeners registered through registerOnSessionChange are indeed being called when the session Id changes, but the MXML data binding expression is not updating. I've tried all combinations of dispatching the event during the capture phase, and making it not cancelable, but to no avail. My understanding of [Bindable (event= ...)] is that the MXML should update the url string when the event specified is dispatched, so what am I doing wrong or misunderstanding?
Note: I realize there are lots of different ways of doing the singleton pattern in Actionscript, but unless the way I am doing it is actually causing my problem somehow,
1. When I make a symbol, I find the reference point always appear on the upper left corner, is there a way I can change the position of that?(besides use javascript?)
2. When I make a animated graphic Symbol, I drag into scene, it always repeat itself so I have to change the instance property to non-loop. Is there a preference which I can preset all the instance to non-loop?
3. if I make 2 animation character in 2 different flash file, how can I combine the 2 files but still keep the layer and key for each character?
In Actionscript 3, I'm trying to build a button to go back from a content frame to a main menu. When the button is clicked, IF the content frame has a movie in it, that movie should stop playing. Flash keeps throwing a "null object reference" error on all pages that don't include a movie. I even tried putting in a check to see if the movie exists, but that doesn't work, either.
ActionScript Code: function return_to_menu( me:MouseEvent ):void { if ( flashmo_contents.flv_movie ) { //this line produces errors in frames where the movie
