Why might it be useful to store an object (i.e. a Movieclip) as a key in a dictionary? Does any one have any examples of where it's used/is useful?
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Right now I am using ArrayCollection. But I want to change that to Set as I want make sure do duplicate values come.
var addressList:ArrayCollection = new ArrayCollection();
One way is I can use Dictionary and store addresses as a key. And I can just use keys to iterate. But I am looking for Java HashSet like implementation.
I am encountering a problem in my app only when it is run in flash player 10.1.85.3. Some earlier player versions I have tried are working fine.From what I can tell it seems related to the following:
Quote:
from here: h[url].....
When searching for objects (not strings) in Dictionary objects using the 'in' operator, if the object is not found in the Dictionary object, it will be searched for in the delegate objects. With 10.1, the toString operator will be called on the Object if not found in the Dictionary. This can cause problems with Proxy objects who need to define the callProperty function or it will generate a RTE. ...what it means "it will be searched for in the delegate objects"?
I'm often seeing others using a Dictionary object in their AS3 code that simply maps objects by String keys and wondering if there is any advantage at all of using a Dictionary over a simple Object if String keys are used. Anyone know any details on this? I would suppose that since an Object is more lightweight it should be faster and preferable over a Dictionary if used with String keys.
View 1 RepliesWhat exactly is the difference between an object and a dictionary in Actionscript?
var obj:Object = new Object();
obj.something = "something";
var dict:Dictionary = new Dictionary();
dict.something = "something";
trace(obj.something, dict.something);
The trace statement seems identical...
So I am writing a program which uses Dictionary to store objects. For example
var dictionary:Dictionary=new Dictionary();
var myObject = new myObject(var1, var2, var3);
dicionary["key"]=myObject;
where var1, var2, and var3 are simply means of assigning values to variables in myObject.can I access values or functions that are found in myObject? In myObject class I have some getters and setters. Can I use a getter to get the value of var1 for example.
dictionary["keys"].getVar1()?
I'm trying to figure out a way to clone / copy a dictionary object.
I came across some articles on cloning that offer this code.
This does not seem to work for dictionary objects. I think it only really works for basic objects.
Has anybody come across a way of cloning a dictionary before
Code:
function clone(source:Object):*
{
var myBA:ByteArray = new ByteArray();
[Code].....
Any good argument as to why I shouldn't use a Dictionary over an Object every single time? I can't think of any case an Object can do the job a Dictionary can't, and it doesn't seem as the Dictionary creates that much more overhead.
View 8 RepliesIn one of the classes in my Flex application I have a dictionary, which is periodically updated from other parts of the application. It contains some sort of user preferences and I want to keep it in sync with a local shared object - the dictionary needs to be read during the class initialization and saved to the local storage when an element is changed, added or deleted.
The "Dictionary" object inherits only "Object" and does not have a change event - like the "collectionChange" in ArrayCollection. So I can't sync the dictionary just by listening for an event and manipulating the shared object in the event handler. The other possible solution would be to make the dictionary private and manipulate it using special methods in my class. Something like:
public function setValue(key:String, value:String):void
public function getValue(key:String):String
public function delValue(key:String):void
But using bindings will become a real nightmare and I will have to make changes in many other parts of the application.
My project is a visual way to represent a database of information about books. It will be represented as a collection of menus and submenus. From one menu, the user will be able to access another, from the other the third.Each item in a menu has some content, so the menus themselves are not a means to an end (to execute commands), but a goal in themselves. Viewing them, and browsing between them is the essence of the project.
The simplest way to organize a menu of items would be a dictionary object containing all its members.However, it is not really good for a complex set of menus and sub-menus which is a web of information linked between another.
I'm getting closer.I need (I think) to use nested dictionaries because I need to easily reference the parent and child objects in case the user changes something, it needs to rewrite the entry associated with that object.I highlighted the code that I am having problems with. Ultimately I need to know what is in the array nested inside of 2 dictionaries.
Code:
var fileMap:Dictionary = new Dictionary();
var choiceMap:Dictionary = new Dictionary();
var fileMapRef:Object = new Object();[code].....
I am using a Dictionary where the keys are Number objects, but I run into unexpected problems if the keys are large integers.
Here is some example code that inserts two key-value pairs in a Dictionary, one with a small key and one with a large one:
var dictionary:Dictionary = new Dictionary();
var smallNumberKey:Number = 1;
dictionary[smallNumberKey] = "some value";
[Code].....
None of the keys seems to be stored as a Number. Why is that? The first one is stored as an int, which can be converted to a Number. The second one however seems to be stored as a String, which makes no sense to me. What is going on here?
whether using a String as the key in a Dictionary results in slower lookups than using an Object, Class or Custom Object (an instance of developer defined Type)?
When using a String as a key, does the literal String have to be parsed, or does the Dictionary key point to the String Object?
How to store flash objects in different location?
View 1 RepliesThe dictionary use strict equals(===) for key comparison, how to change the comparison, so I can use my standard for comparison, for example, I have a class named Student:
class Student{
var id:int;
var name:String;[code]....
I want Dictionary use id to compare if the two keys are equal, not use strict equal(===) to compare if the key is the same.
Is it possible that object can be store in array list.
package {
// Importing object from flash library
import flash.text.TextField;
import flash.display.Sprite;
// Creating class
public class Show extends Sprite {
[Code] .....
Error
Description : Label must be a simple identifier
Location : Above orange textcolor line
i am preparing a game, the game has four bet spots. i want to save the user bet details. i like to save the user bet details in an object, so i can access it whenever i need. I have done same thing in AS 2.0. my object will look like
player[0].betSpot1.amount="100"
player[0].betSpot2.amount="200"
I would like to store a FileReference object somehow and load it when the SWF loads again. I tried to use the SharedObject class but it does not seem to work. I suspect that what I want to do is not doable due to security issues (not using Adobe AIR), but I wanted to check. Any way to store a FileReference object please and load it when the SWF is restarted?
View 1 RepliesI want to create an array of object so that I can store the _level I want to load image at specified level and and to keep track of levels in an array so that when any new image will be loaded I can get location of previously loaded image and place the new image before the last image
Code:
loadMovieNum(_global.myXML.childNodes[0].childNodes[3].childNodes[5].childNodes[0].attributes.path, 178);
_root.mcTray._alpha = 100;
_level178._x = 20;
_level178._y = 620;
I have an array name region it has a couple of properties. "code", "name", "value"
I want to store this array in an indexed object called regions.
I would then like to access the object by referring to its sub property name
regions[1].code
regions[1].name
regions[1].value
I can set an array region.code, region.name and region.value but I can not set the regions values
regions[1].code = "abc"
regions[1].name ="alphabet"
regions[1].value =26
note: region is singular and regions is plural(many)
Can someone outline the variable definition and construct so I can access this information. Happy to replace the index field with the code value.
I'm trying to create a game and have come across something that I have never really played with and am not sure if it is what I need to use in this instance or if it's as powerful of a resource as I am hoping.I have a movieClip that is an animated man. I can move him around my stage by clicking on him and then clicking where I want him to go. But I'm eventually going to need to store information about him. Such as his x and y position on the stage, attributes about him that are custom to my game.Real Quick: The man represents an army and when the user clicks on him, I want to display things like, Military Units in this army, number of men remaining in each unit, experience and so on. If you have ever played any of the "Total War" games you will know what I'm talking about.
View 1 Repliescan a shared local object (.sol) store nested arrays? like:
myArray = new Array([a, b, c], [1, 2, 3]);
I was wondering if it was possible to store the order of objects being played and then later call up that sequence to be played back.For example:[code]so if the order that was played was movie clip a,c,b,b,b,d,a - is there an array or var I can use to store this order and then once the user puts in a comman to play it back, flash does play it back in the correct order?
View 5 RepliesI have only ben using flash for a little while and do not know a lot about action scripts.I have used a flash file found online which plays music and has a mute button, but at present it plays the music when the page is viewed at another time.So need to have a cookie or shared obect as i have been told it is, so that when the music tries to play it can read the mute state cookie to decide if it should play or not.i see i can not upload a file so have uploaded to the following location
View 1 RepliesThe great thing about dictionary: one can use objects as keys. The bad thing: compiler still believes that the keys are strings.
[code]...
Normally in Flex you use a collection like ArrayCollection as the dataprovider for components. I often have data stored as a dictionary whose values I would like to use as a dataprovider.
View 2 RepliesI'm working with a large set of hierarchical taxonomic terms, where each term ("203") has a matching "term203" movie clip on the stage, and am having trouble getting a recursive function to return all of a given term's descendants.There is a main Dictionary() object with the following nested organization for each term:
{ [object Movie Clip] : { "tid":203, "parent":99, "name":"Culture", selected:false, "otherData":"etc" } }
...where the [object Movie Clip]'s instance name would be "term203". All of these object:subObjectArray items ("terms") are stored in a master taxonomy:Dictionary() object.I've been trying to make a recursive function (which is in itself already a little above my head) that takes the click.target of a movie clip and returns a new Dictionary() object with all of the children and grandchildren and great grandchildren (etc) of that term, in the same, nested organization described above.
The code below traces the right number of recursive loops, but the returned Dictionary() object only contains the first run's terms (only the immediate children of the requested term).
var taxonomy:Dictionary = new Dictionary();
// ...Term info is loaded into taxonomy from a JSON-style text file)
// ...MOUSE_OVER event listeners are added to each
[code]....
I certainly do not claim to be the most efficient AS3 programmer, so I am open to alternative configurations. However, after trying static and nested Arrays, I would prefer to continue using the Dictionary() object as my main pool.As noted, only the immediate children end up animating in the revealChildren() function. It's mystifying to me then, that in the getAllChildren() function, all of the descendants trace sequentially (well in no particular order) in the output window.Also I can't get any sort of name or property out of the subSet Object. That could be the problem.I've only tested it as far as 'two generations,' but it seems that only the first round of calling the function successfully adds those terms to the new Dictionary() object and returns it intact to the animating function.
why the Dictionary class ignores setPropertyIsEnumerable? I found this bug at bugs.adobe, seems the prototype might be involved in some devious way.Here is some test code:
var obj:Object = {
'a': 0,
'b': 1,[code]......
Notice that the Dictionary is still enumerating the property "a" even though it was told not to.
What is the correct way to determine if a Dictionary contains a particular key or not?
In Java I can do:
HashMap x= new HashMap();
x.containsKey("test"); // returns true/false
Is this the correct way in AS3?
var xictionary = new Dictionary();
x["test"] == null
[Code]...
in Java this: dict.keySet()
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