Flex :: Require A Function Parameter To Be A Static Constant Of The Function's Class?
May 22, 2009
Let's say I have a Custom Event Class, and it has several Event types stored in static Constant:
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Is there an easy way to validate that the type passed to the Constructor is one of the Static Constants of the Class, without having to check it against each value?
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.
how to pass a constant into a function, and then for that function to make use of that constant in its constant form (not the string form).
Some code snippets:
Code: // make call to play ad, passing a constant value defined in a separate AdType class // in the AdType class, AdType.PREROLL = "before_content"
[Code].....
I realize this is because the value of AdType.PREROLL resolves to a String value ("before_content"), which is then getting passed into the function as such (a String), but is there a way I can make use of that same constant in the playAd function without having to check its string value directly?
Alright, so I have a class that is linked (via the linkage panel) to a scrollbox class. I'll paste the class here:[code]Ignoring the formatting, the commented out functions are the ones causing the issue. Adobe says that it's a static class and I can't use non-static functions. The way I wanted to use it was:
1. Call the page button generating function above.
2. In the main code in my program is this line:scrollbox.setClickFunction(historyContent.generate Page);So when the buttons that are supposed to be generated are clicked, the scrollbox class can call the History pages generatePage function and pass it which page to show. (I did this because there was a lot of text and a limit on how much would display, so small chunks sounded logical).
3. In the onClick function (which I haven't finished yet because the rest wont work), when you click one of the buttons it calls the set function. Its that simple.
I'm currently writing a class where I'd like to call the class constructor without having to instantiate the class itself. Something like this : Class:
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trace(testString); //wil trace the text "test test123" Is it possible to somehow achieve this? When I write the costructor method like "public static function ClassName" it fails. Is there any other way?
Basically, what I mean is I i have few layers of classes, that calls and change something on the 1st(root) class. In between the process I have to use static var and static function.But when I want to run a function which does not change any variables, for example:otoAndStop(someFrames), I need to make the function a static function too or else there would be error
Code: 1061: Call to a possibly undefined method checkStatus through a reference with static type Class.
I have a support class called ICSNAArrays. It contains only static functions. In my main class file I have imported it and then when I try to call one of the functions I get a compiler error that says there is no method with the name 'ICSNAArrays' I don't understand this. There are no errors importing it. All of the spelling is correct I am 100% sure on that.
i want to create a global function in actionscript 3.0 i can do this in flash as2 As3 remove that _global. if i want to create a _global function then want to create a static metod in another class file...?
this is the function i want to turn in to a static function. just dont know how to make it a static function and call it from other classes. i think this would have its own file.
I'm having some trouble passing parameters with a function that is itself being passed as a parameter.In my application code I'm instancing that class five times:they are buttons in a menu.In that class, I've got an onRelease handler that does a number of things when a button is released, one of which is to invoke a function that is defined in the application level of the code.My problem is that I don't know how to send the function parameters.In my StandardButton class I have:
class StandardButton extends MovieClip { /* define properties */[code]..........
The function is successfully being "sent" to the StandardButton class, but without any parameters.How can I send parameters to the class instance with the way I've got this architected.
i'm trying to modify some code and can't figure out what the issue i'm having it. this is the(shortened) code:
public static function Lose():void { trace("OVER!"); Clock.stop();[code]...
this is the error i get: 1180: Call to a possibly undefined method OverIt.i just want to call a function from inside of the public static funtion.both function are inside this class:
What language construction can be used to make a compile time checking of Array elements type when the Array is a function parameter?[code]Here we've marked the returned Array as one containing elements of type string.Is there a way to mark the parameter variable as an Array containing elements of certain type?I'm specially interested in the Array collection. I'm aware of the vector collection but I have reasons not to use it in my case.
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)
I am creating a driving game using the following method to drive the car forward: if (Key.isDown(Key.UP)) {speed += 1;} I also want to call a function when the key is pressed athough if I add a function call the function gets repeated as long as the key is pressed and I only require it to run once?
I'm using FlashBuilder 4 beta2. My base class has a function foo(): protected function foo(s:String, z:String=null): void{} Literally "foo" so that there's no chance I'm stepping on a built-in method. I am getting an "Incompatible override" error when attempting to override the method in a subclass: override protected function foo(s:String, z:String=null): void{} Does the optional parameter do something "behind the scenes" that makes it illegal to override the method?
Once I get logged in on my login control, I would like to change the selected index of my ViewStack. From my outside controls, I cannot reference my ViewStack by name. I can reference a public static function from an outside control however I cannot refer to the ViewStack from within that function.
Ok, so I have a bit of a mess here (Which I'm probably not doing right anyway, which could be my problem...). I have a document class, I'll call it as Body.as, that creates an object from another class known as Headgear.as. There are also other objects created from other classes, or will be in the future. Now, amoung all this, Headgear.as and all of the other classes Body.as will use to make objects require the use of dragging functions (starting and stopping dragging). On stopping drags, position checks are then made to compare a particular hidden movieclip with the dragged MC.
To try and save myself some hassle (from making the same functions over and over to ensuring that when the objects are created I don't need to send a complete crapload of variables just to ensure the position checking function would work), I had the functions for the event listeners (Which are set-up on the draggable MCs in Headgear.as) just direct to functions in Body.as
I want to call a function from another function's parameter but I don't know how and don't know if it is possible.I've considered this as a solution but it didn't worked.
is there a difference between classifying a function 'private' or 'private static' in a singleton? It seems that they both do the same thing. Maybe some difference in performance?
I have a class Debug with a function called trace inside it which puts a TextField on the stage and outputs the text. Now I am trying to get the Debug.trace() function to do a "normal" debug trace as well from within side itself. of course this causes a recursive loop. I am trying to figure out how I can access the top level separately. I tried using namespaces such as AS3::trace but to no luck.
I know a solution is to rename my function to stop the conflict, but I would like that to be a last resort. It is being used in quite alot of places throughout my entire code so replacing it everywhere is going to be a ballache.
Okay so I am reading through sens tutorial on OOP and updating my game that I am making. It is much easier to code this way (IMO) but still hitting snags.I am trying to get through this code: