Xml :: Structure Classes To Avoid Using Static Functions?
Nov 16, 2011
I have a Flash application that creates a sort of powerpoint presentation. All the 'slides' are stored in an XML files which is read and processed.
I'm trying to build the presentation using this XML file. At the moment, my main class has it's initial function main and a static function processXML main initiates my database class with a function called initDB. One of my issues is that initDB forgoes processing because it's dependant on an event listener. On completion of loading the XML files, the event listener initiates my static function on my main to create objects from this file.
The issue is that because the event listener continues the processing (after an indeterminate amount of time), the functions are no longer controlled by the main class.
Is there any way to override static functions of Flash top level classes? Lets take Stage or Math for example. What if we want to change Stage.addListener functionality, is there any solution to this problem?
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
Yesterday I found myself wondering, what is the difference between either having a class with methods that are all static, or simply giving your class the static attribute?
I am confused as to why on your C Drive the folder structure in regards to classes in flash does not seem to resemble the hierarchy/structure when you are actually using them? For example, I kind of expected there to be a Classes folder with Top-Level Classes, then two sub folders, the fl. folder and flash. folder, and in them, packges...etc...
Instead there is a "FP7" folder, "FP8" folder, "FP9" folder, "FP10" folder, an "mx" folder, and a toplevel.as class. FP7 and MX seem to hold a lot of the primary classes that I am most familiar with...but how do they relate? I thought I would find the Sprite class in a display package/folder...but have yet to locate it (my search feature is weird at the moment, I am not sure why it can't really even find anything, even though I know that that thing exists).
How does this relate to the hierarchy / structure of classes when you are using it? I am basically trying to visually things but am confused. I may need to explain a bit more later... how to put into words at the moment...
Im learning about Classes. Simple question for you all. What is the best/standard way to organise my folder/package structure for the classes I write, in particular to placing Main.as for example. Some structures I have seen in other source code are:
Let's I have a class Square that has a several functions. I want to call it from a class Grid, which is a group of Squares.So in the class file for Grid, how would I do this:
Code: public function doSquareFunction(thisFunction:Function):void{ square1.thisFunction();
A lot of people have .com websites & put all their classes & packages inside a com folder & then their website name to avoid any possible naming conflicts when using other peoples classes - all very sensible. I have a .co.uk website however - is there an equivelant naming standard?
At the moment, my main classes game variable, is static, so I can access any class in the game, from any class in the game. However I keep getting errors related to the fact it is static; is there any alternative to this?
I am using get/set functions to make variables that are (or appear to be) read only. I can get it to work with instance variables, but not static variables. I found this, which seems to indicate that it's possible to use get/set functions on static properties, but the compiler keeps telling me I have duplicate function declarations. This is essentially what I'm using:
package { public class Foo { protected static var bar:int = 0; public static function get bar():int {return bar;} } }
It seems that Actionscript doesnt support defining static functions in interfaces. Whats the reasoning behind this?I think it would be useful to have that ability but I'm sure there must be a reason why its not there.
How do Static classes work in projects where child swf's use the same Static class as their parent?
For simplicity... lets say we have some older content swf files that are using TweenLite version 8 ( a common enough Static class.) But the parent SWF is being updated and uses a more recent version of TweenLite (version 10). The child SWF's are loaded into the parent SWF. Do the child SWF exist in there own sandbox and have TweenLite version 8 running and the Parent runs it's own copy of TweenLite 10? Or does the parents clips Static class of TweenLite (version 10) overwrite the children Static class using some sort of magical shared memory space when JIT (runtime) compiling?
I'd like to have a class that will resolve calls to static functions that don't exist.If you have an object that subclasses the Proxy class, you can override the callProperty() method to catch calls to functions, as properties of that object, that don't exist.How can this be done with static function calls in a class? It cannot be done by making the overridden callProperty() method static. Is there another way?
I'm working with an application which was originally designed to make heavy use of static-variables and functions to impose singleton-style access to objects. I've been utilizing Parsley to break apart some of the coupling in this project, and I'd like to start chiseling away at the use of static functions. I will explain the basic architecture first, and then I'll ask my questions. Within this application exists a static utility which sends/receives HTTP requests. When a component wishes to request data via HTTP, it invokes a static function in this class: Utility.fetchUrl(url, parameters, successHandler, errorHandler); This function calls another static function in a tracking component which monitors how long requests take, how many are sent, etc. The invocation looks very similar in the utility class:
To rephrase my question: if you have a class with a bunch of static methods and you use one of them in your code, does the whole class get compiled with your movie? I suspect that it would be and, if that's the case, wouldn't it be better (from a file-size perspective) to use packaged functions instead?
I've rarely used static variables or methods when creating external classes, but I have on occasion, and it's very useful when I need global access to a value. I've seen negative criticism on the use of the "static" keyword, but never understood why. Is there a right and wrong way of using it, or is this not true? I'd like to use it in a context similar to classes such as MouseEvent or TextFieldAutoSize, where there is a list of values globally accessible for identification purposes.
It allows better code readability, and also allows for easy customization in the future. The value of TextFieldAutoSize.NONE is "none", but as long as a programmer used the reference TextFieldAutoSize.NONE and not the string literal "none", Adobe could change the value of TextFieldAutoSize.NONE to be "hahahahaha" and everything would still work just dandy because (TextFieldAutoSize.NONE == TextFieldAutoSize.NONE) is still true even though ("none" == "hahahahaha") is not.
Is there any kind of negative impact on using static variables this way? Or even functions for that matter? I'd just like to clarify this before I go and build a large project around the idea this is perfectly okay.
I load many classes in at runtime from external SWF's, accessing those classes is pretty simple, like so - var currentDomain:ApplicationDomain = ApplicationDomain.currentDomain; var modelClass:Class = currentDomain.getDefinition(className) as Class; var model:Model3D = new modelClass(); However I've never tried to access static functions from a runtime class, and now I need to. How is it done? It seems like something that should be simple, but I haven't worked it out yet.
i am pretty familiar with tweaking as1/as2 performancehowever in as3 i am still a noob concerning optimization.i tend to have a class utils in my projects in which i carry a lot of static vars and functions.[code]
I would want to use the frameScript method to add some stop and play methods to some frames.Normally I would declare the stop function:
HTML Code:
private function $FUN_FrameStop():void { stop(); return; } and then use it like this:
Code:
addFrameScript(47, $FUN_FrameStop, 122, $FUN_FrameStop); My question is, how can I create the same $FUN_FrameStop as a static function?
Static functions do not allow the use of this since static members are bound to a class and are not inherited by that class' instances. So, is there a way to create a function similar to $FUN_FrameStop, but static?
I have a question about classes. I just learn that static means that functions and/or properties are specifics to a class, but is it a synonym of private? And why statics (not available to any instances?) properties and/or methods can have a public (available anywhere else (timeline)) access modifier? PS: I just start with classes.
i'm trying to learn about clases, and i tried to make an easy XML loader, but i gotta a problem with the attributes that doen't take the value i provide with the att variable. it shows me on the trace statement like undefined, and for example if i change the atrribute instead of being dynamic, to be static, it does work.
Code: class XMLS { function XMLS(Path:String, textfield:TextField, att:String, n:Number) { var miXML:XML = new XML();[code].....
I seem to run into compile issues in Flash Builder when I import 3rd-party libraries at the wrong level in the directory structure. For example, sometimes I'll import a library one level too deep into its directory tree, and the package explorer ends up excluding the prefix root-level package, usually "com." or "net.". Even though the content of the source itself doesn't change, this will cause compile errors.
Thus: Is it a 1) convention or 2) language requirement that a class's package structure (e.g., "foo.bar.Class") must match its path location (e.g., foo/bar/Class.as)? If it's a language requirement, why is it a requirement? Wouldn't that overdetermine the package structure, since it is already specified in the source code and quite happily consuming the first three to eight columns of each line? If it's not a language requirement, are my compile errors just a result of Flash Builder enforcing the convention?
so I'm having this problem where one of my classes can't locate a function. The function it's trying to use is in another class, so I was wondering if there was something special you had to do. This is what I'm basically doing: One class
Let's I have a class Square that has a several functions. I want to call it from a class Grid, which is a group of Squares.So in the class file for Grid, how would I do this:
Code: public function doSquareFunction(thisFunction:Function):void{ square1.thisFunction();
I have Flash project that is set up something like this:
myProject.fla
- document class = myMenu.as
- the document class imports a menu item from menuItem.as (import menuItem;)
I have a function in myMenu.as that sets the text formatting for all the text fields on the page. I want to be able to use this same function in menuItem.as so that all the formatting is consistent & you only have to change it in one place. How do I access this function from both myMenu.as & menuItem.as?
