Actionscript 3 :: Flex 3: Determine If A Generic Object Is Actually A Button?
Aug 7, 2009
I have this bit of code, and it's not working as I expected. btnContainer is a VBox that contains a ton of buttons (toggle=true); and I want to reset them to un-toggled at a certain point.
for (var btn:Object in btnContainer.getChildren()){
if (btn.isPrototypeOf(mx.controls.Button)){
btn.selected = false;
}
}
With the above code, "btn" shows up as just the index during each iteration of the loop (0,1,2,3,...), and the conditional never evaluates to true.I also tried this:
for (var btn:Button in btnContainer.getChildren()){
btn.selected = false;
}
This works fine, except that there is also a label inside btnContainer; so it throws an error when trying to cast the label as a button.
I want to create a generic component in flex. This component deals with different ArrayCollections dynamically (I want it in that way). So I thought to pass the arrayCollection and the type of that arrayCollection as arguments to the component.
Like, var list:ArrayCollection<ClassA>; init_Comp(list, "ClassA");
If it is possible, I can read it like this, var newDynamicInstatnce: typeOf("ClassA") = list.getItemAt(0) as typeOf("ClassA");
Finally I have a Dynamic Instance type of that I pass. Is this possible in Flex or Is there a better way?
Does there exist a Flex view component that you could just pass it a custom object with all public fields/properties that it could reflect over and produce a basic UI view using flex components. Is it possible to use something like the Spark DataGrid with one item laid out vertically. It would only have to support:
Ref: spark.components.ButtonBar. In the spark ButtonBar's mouseOver event, how do you determine which of the several buttons the mouse is hovering over? There is, of course, no selected index at this juncture. If it makes a difference, my ButtonBar is not defined in MXML but is instantiated in ActionScript and an ArrayList is assigned to the dataProvider property of my ButtonBar instance.
I am using browseForSave() to give the user a chance to save a file before navigating back to a previous screen. As of now the cancel button on the save dialog just closes the save dialog. I want to see if the cancel button was clicked, and if so continue navigating back to the previous screen without saving. Right now the person has to save the file in order to move back. Below is the code I'm using.
I don't understand what is structurally different between a Value Object and a Class in ActionScript3. Can any Class be a VO if you decide to call it one?
Is there a way out there to essentially loop through a generic object to find out what parameters/properties are being used and/or what there names are?
ActionScript Code: var obj:Object = new Object(); obj.foo = "hello"; obj.bar = "world"; //... and on for however many params you need [Code] .....
I might be trying to do something that is essentially not possible, but I'm just thinking it would be very nice sometimes to access different parts of an object without having to directly know what the param name is...
Right now I'm working on an advanced hitTesting engine, and What I'm trying to do here is create an engine that will detect collision with one object instead of two. That basically means that if any other objects touch this movie clip, the hitTest will return True. Right now the .fla containing the engine has nothing but a circle that can be moved using arrow keys and 8 squares that disappear when touched by the circle. Obviously, I could do something like:
if (circle.hitTest(square1)) { do so and so } else if (circle.hitTest(square2)) { do this and that } etc...
But that would be too long, since the engine has to be able to contain 100 squares without too much change in the code.
i have a button labeled as events on the main page of my website and i want to link that button to an html page which i have createdThe page should be opened in a new tab
I'm trying to make a generic button to call an specific frame but when I'll try it with trace it works perfect... when I make a goto code on it it messes up my entire count....here is the code I'm using...does anyone know whats happening? how can I fix this? here is my code
I want to handle multiple operations on a UI Component (button ,textfield, swfs,custom objects etc) in like scaling,skewing ,color,rotations etc etc and save them too. Earlier the actions were done
using a single tool and single mxml file but now the tool is separated into different tools. Was wondering how i can design / use something like Toolmanager class to handle actions etc?
Also the tricky part is that some objects can have more operations defined for them Like 'object1' has 3 operations that can be performed on it and 'object2' has 5 operations defined on it.
We are using MVC design pattern but no frameworks as such. What are the different design patterns that can be used to do this? Edit: To be more precise i want implement this in AS3 OO way.The application is similar to drawing application which supports addition of various images,text,audio,swfs etc. One added user can perform various operations of the objects..like adding color,scaling skewing,rotation etc etc and custom effects and after that export the drawing as PNG.Likewise some effects that are applicable to text are not applicable to images and vice versa. and some effects can be common.
Is there any way, without having the creator of the object implement any special functions (no specific serialization functions) (however, they can use annotations), to have Flash serialize a generic, possibly deep (objects within objects within objects, etc, etc, etc) object?
i'm trying to use if statements but can't get this thing to work i want to check if another button is visible on release of a button to determine what action to be taken.the 'gotoAndPlay("firstscene",1)' is just there as an outcome, will be changed later. anyway this is the code i've got on the button i'm pressing. blobyellow2 is an instance of a button blobyellow is it because it's an instance that it's not working?
[Code]...
edit: sorry forgot to put what's wrong with the code. it acts as though the statement is correct no matter if it is or isn't.
Is it possible to receive custom generic typed objects through AMF? I'm trying to integrate a flex app with an existing C# service but flex is choking on custom generic typed objects. As far as I can tell Flex doesn't even support generics, but I'd like to be able to even just read in the object and cast its members as necessary. I basically just want flex to ignore the <T>. I'm hopeful that there's a way to do this, since flex doesn't complain about typed collections (a server call returning List works fine and flex converts it to an ArrayCollection just like an un-typed List).
The custom C# typed class public class TypeTest<T> { public T value { get; set; } public TypeTest () { }}
The server method returning the typeTest public TypeTest<String> doTypeTest() { TypeTest<String> theTester = new TypeTest<String>("grrrr"); return theTester; [Code] .....
Irritatingly if I change the result handler to take parameter of type Object it works fine. How to make this work with the value object?
I am trying to make a generic list control that has x buttons in it so that users can remove items from the list by clicking the x button. However, this list control needs to support item renderers while still standardizing the layout of items placed next to x buttons.
So I figure the best approach would be to extend the list control and use a renderer that draws the x button and combines that with what ever renderer the user supplies. Unfortunately I cannot figure out how to do that.
I tried overriding newInstance method from the IFactory interface and used that to create an HBox that contains my button and inserts the newInstance result from a user supplied renderer, however it wasn't complete. It displayed as I expected, but the mouse over effect only worked on the user supplied renderer portion and not the entire HBox that my custom renderer made.
I've been having trouble with a simple generic object. I took this example from the file : var myPoint:Object = {x:50, y:20}; When I paste it into a new flash file and trace it, I get x = 50 and y = 20 . As expected. When I paste it into a file I have been working on, in the root, on it's own layer, I get "undefined" for the x & y properties. There are no other variables in my file called "myPoint".
how to determine if there's a dragged object. Is there a way to do this?
I know if you start another drag on the other object it will stop the current dragged object. Maybe there's a public function that will query about this?
i have a class called "Ball" that extends "AllSprites" which is a class that extends "Sprite". there is an addChild within the "Ball" class that adds a Sprite to the stage. when i run it like this, it successfully adds the object to the stage.
in my Main class i have
Code: var ballOne:Ball = new Ball();
i am trying to get the x and y value of ballOne from within my Main class but if i try to do
Code: trace(ballOne.x);
i get an error:
1119: Access of possibly undefined property x through a reference with static type Ball.
how do i tell my code that the ballOne is a Sprite so i can get the x and y values?
Any command to check whether an object is currently present in the Display List? I have a TextField called _startHereText. I have some logic where I need to sometimes use RemoveChild to take this object out of the Display List, but I first need to determine if it is presently there.
How can I get the X, Y, and rotation values, relative to the stage of a child of unknown number of parents?
What I am doing is: I have a 'stick' object, that creates a child 'stick', that creates a child 'stick', etc a random number of times.
The end stick then creates a leaf.
Each new stick rotates a little bit randomly.
As a result when my leaf falls off the final stick it flies off in a strange direction.
How can I get the leaf to fall down (eg y++ relative to stage)?
Alternatively I thought I could dispatch an event that has a leaf created at the stage level but then I really need to know what the X and Y co-ordinates of my final stick is realtive to the stage.
Is it possible to use JavaScript to detect whether a .swf file has loaded completely within a web page?Assume that the .swf file is pulled from a 3rd-party website and we don't have access to its source code.
How can I get the X, Y, and rotation values, relative to the stage of a child of unknown number of parents?What I am doing is: I have a 'stick' object, that creates a child 'stick', that creates a child 'stick', etc a random number of times.The end stick then creates a leaf. Each new stick rotates a little bit randomly.As a result when my leaf falls off the final stick it flies off in a strange direction.How can I get the leaf to fall down (eg y++ relative to stage)?Alternatively I thought I could dispatch an event that has a leaf created at the stage level but then I really need to know what the X and Y co-ordinates of my final stick is realtive to the stage.
