Flex :: Class - Create Own Classes / Objects?
Dec 7, 2009When I try to do this in an AS CDATA block, it tells me I can't have a class declared within a class (the MX:Application itself). Makes sense. But where and how do I do it?
View 2 RepliesWhen I try to do this in an AS CDATA block, it tells me I can't have a class declared within a class (the MX:Application itself). Makes sense. But where and how do I do it?
View 2 RepliesI was wondering if I can create an array of created Classes. I have a feeling that I cannot, and that you can only create an array of values, not objects.
View 2 RepliesIf I've got a bunch of plain old Objects, what's the best way to map them to a bunch of Classes?For example, if I use an HTTPService to pull in some JSON, then deserialize it, I'll have a bunch of objects which look like:
{ type: "person",
id: 42,
name: "David" }
And I want to turn them into instances of a Person class:
class Person {
id:int;
name:String;
}
(also to be considered: how about some standard way of dealing with relationships between objects? For example, if the Person had an additional "spouse" field:
{ type: "person", spouse: 61, ... } // Where 61 is the ID of the spouse
)
Internally Flash obviously keeps a list of the primitives drawn using Graphics so I wondered if you have many such primitives in a Sprite, can you re-position/remove/alter individual items rather than clear and re-draw everything? Or is this deeper into the bowels of Flash than you're allowed (or recommended) to go?
View 4 RepliesIs it possible to store instances of a class in a cookie or in shared objects.
Basically in my application I have an object "Diagram" that the user can create. If they hit save, I want to store the current instance as a cookie and allows them to reload it later.
Alternatively, I could see about getting them to store the saved version on the hard disk. But even then, all I want to save and retreive is my actionscript object.
I've tried storing the object to SharedObject.data.diag, but when I try to retrieve the object from the cookie doing SharedObject.data.diag as Diag returns null.
I've got an object declared and instantiated in my Flex application's singular MXML file: public var CDN:CDNClass = new CDNClass; I would like to access this same CDN object (and its public methods and properties) in another class declared in a separate .as file as such:
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But when I try to access the public method parsePlayList in the CDN object in a method in the class defined in the .as file, I get the following error: Access of undefined property CDN The reason I want to do this is to break up the logic of my application into multiple AS files and have minimal MXML files, probably only one.
I am developing one small demo application. In that i have created one action script class named City which has two fields. cityId, cityName and i have also mapped this class with my backend java class City using tag RemoteClass. at Java side City class contains same fields as in actionscript city class.
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I am trying to create an array of purchases or objects. I have several products that I want to store the users selection to contain the item they selected, price, & quantity. I'm at a loss on how to set this up. Currently the user can select their product and their total price will be displayed in the Cart Total text field but I have no way of storing the data.[code]...
View 0 RepliesI've been trying to create an Array of Objects in a Class structure, for easy access of the objects from other classes and my .fla file. Unfortunately I keep running into this error:
"TypeError: Error #1034: Type Coercion failed: cannot convert Seed@31161a1 to SeedCollection.
at flowerGame06_fla::MainTimeline/flowerGame06_fla::frame1()"
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I am following these direction to the TEE to create a swc for all my custom classes but the swc never compiles. Is there another way of doing this?? [URL]
View 1 RepliesI'm creating a class that extends another class.
public class ASClass extends UIComponent{
}
but I'm trying to make it extend multiple classes. Is this somehow possible? I read it may be possible through composition?
Does anyone know of software or flex/flash/as3 source or visualisation software that could be used to make interactive graphs, where the user would enter a query that would pull data from a MySQL database and the user would build a sunburst or icicle graph by dragging and dropping items into a tree-like structure and they would be able to view the graph? i have attempted to use flare but my programming skills are pretty bad. So far from what i gather, flare only allows the graphing of defined datasets rather than allowing a user to modify the dataset and thus creating a new dataset.
View 2 Replieshow to get a Class file up and going in Flash and that works fine but say I want to import other classes. I try "import testCass" above in my import statements section of my as file and that doesn't work. What do I have to do to get that to work?
View 6 RepliesI new to flex, I have a class shown below:
public class Items extends Object
{
public function Items(){
super();
}
public var name:String;
public var count:int;
}
How do I create an ArrayCollection of type Items?
It is possible for a class to extend an arrayList of objects in Flex?
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I'm new to Flash AS3. I started making a game and I am a bit confused. Let's assume that I want to create a game that has multiple levels/modes, how can I do this in an object orientated way?
When i create games in other languages e.g. XNA C#, i create a separate class then create an object of that class within the main class and run the game based on a simple statement.
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I've been playing around with custom classes. My objective was to create a custom class (Testing) that would create a box when an instance of the class is created. I've tried three different approaches, however only (3) seems to be showing up. I'm just curious why (1) or (2) doesn't work?
Also is there a better approach than (3)? Since at the moment it's been created on _root. I hope the box can only be accessible through the instance. Since I'd like to incorporate the whole idea of public, private, encapsulation, etc.
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I am doing an Actionscript 3.0 project which involves introspection. I am wondering if there is a way to get all the classes within a given package structure.
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I want to create a flash movie which firstly loads a selection of images/objects into a portion of the frame. After this is complete, the user can then drag these objects onto another area and the object will be created where the user has chosen. The user can then drag another instance of the ojects onto the area.
For example, there is a background of a lake in one area. A selection of boat pngs are loaded in an area below the lake. The user can drag these boats and place them on the lake. They can drag a boat multiple times if they wish.
What I have is a game with a Level object, inside the Level is a Player object, and they don't have instance names given, what I'm trying to figure out is how to do is make it so that the player can change the x or y properties of the Level object.
To be more precise, I'm making it so that when the player moves in a certain direction, he either moves accross the stage, or he starts moving the Level object around the stage, it'd be in an Event kind of function, now I can easily make the Player move, but I don't know how to make the Level object move which the player is inside of.
I have 2 classes Main.as and RedPawn.as (yes, in the same folder).I am wanting to check if a child exists on a movie clip in Main.as through RedPawn.as.This is within a for loop since I am checking 24 possible values for _dest until I find a match.This simplified code example would be in the RedPawn class:
Code:
_dest = 'example_mc'; // example_mc is pulled from an array
if ( MovieClip(root)._dest.numChildren < 2 ) { // do stuff; }
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I want to access an object from a class in which it was not created in. I have a main class (A) in which I create and instantiate an object (of class B), from this class I can obviously do whatever I want with the object, no problem. The issue I'm having is another class (C) needs to access the object in question to change its x and y location values. Class C doesn't know what the instance of class B, created in class A, is; this doesn't surprise me, but I can't figure out how to allow class C to get access to what class A created.
View 7 RepliesI've got a problem targeting objects is AS2 classes. In a class I have a multi-dimensional array with paths to some mc's in the main timeline (caminho['mc']). I need to reference them via method in a class, so i use something like this:
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So i a building a categorized menu of different foods. I have a class for "categories" (buttons) which essentially will return a string "salads", "drinks", etc. I now have another class "menuItems" for items within categories and this handles sizes such as "small", "med", "large", etc. My problem now is that when i return "salads", i want to invoke an array which contains all the elements of salads, send it to menuItems which will populate the menu. So far i have both the category objects and the menu object setup. I just cant seem to be able to send the data that the category object is returning and pass it to the menu object. Both of which are added to the stage as shown below:
If there was a way that i could say add all these classes to one class so that they can talk to each other that would be great but i dont know how to do this.
So I have a menu built inside of Flash CS4 that has a graphic for a background and five text fields that sit on it for menu options. The whole thing is saved as a movie clip in the library. The text fields all have instance names like infoBtn and mapBtn etc. and the menu is already on the stage and linked to it's own class in the library. My problem is accessing those text fields on the menu from the class. I keep getting "Error #1009: Cannot access a property or method of a null object reference." and the menu doesn't work. But if I trace the infoBtn.text in the class it outputs the text that is in the text field. So the code is accessing it but it's still not working?
Code:
package classes
{
import flash.display.*;
import flash.events.*;
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I've been heavily mired in 3D recently, and decided to pay a visit back to good ole Flash.
My problem is this. I'm extending the MovieClipLoader class to create a Preloader Class (yes I'm sure it's been done fifty billion times but). I'm trying to refer to a symbol in a common library, the preloader symbol itself.
Inside my class I have this
Code:
function onLoadStart(target){
baseClip.attachMovie("preloaderTemplate_mc", "preloader_mc", 500, {_x:0, _y:20, _xscale:75, _yscale:75});
baseClip.preloader_mc.gotoAndPlay(1);
}
baseClip is a MovieClip object which takes a MovieClip passed to the constructor of the class in the FLA. (say a container movieclip which has a target clip preloaded into it) The class does load the target clip into the baseClip, but doesn't show the preloader, which makes me think I'm not referring to it properly.
Im trying to get used to packages and classes in AS3. Im used to put all code on the first frame of the timeline, but now i have 442 lines of code on the first frame. Yeah 442. And this is for a game engine so i thought i should put it inside some classes to make it easier to read an reusable. But i have noticed that if i create a class called Code and make a instance of that class like this:[AS]var codeObject:Code = new Code();[/AS]i get a bunch of errors because the class cant Acess the stage and the display list.i found a workaround by linking the class to a movieClip and and do this:[AS]MovieClip(parent);[/AS?
View 1 Repliesm new to as3 & am trying to make a platform game. i'm just not sure how to define the objects & variables. like my character & any other object i want it to collide with will be sprites, but im not sure where to go from there.
View 2 RepliesI'm trying to build a Flex AIR app using Flex Builder 3, which I'm just getting started with. In Flash CS4, there's a text field in the authoring environment where you can specify a class that will become the "base" class - your class inherits from Sprite and then "becomes" the Stage at runtime. Is there a a way to do the same thing with Flex/AIR? Failing that, how to create and use an external class?
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But that gives the error "A file found in a source-path must have an externally visible definition. If a definition in the file is meant to be externally visible, please put the definition in a package". I can't win! When I put my class in a package, it says I can't do that because it would be nested. When I don't, it says it needs to be in a package so it can be seen.
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Why do we need to create objects like Sound Objects, Date Objects and Text Objects before we load them? And what are the advantages of using objects?
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