Flex :: Class Implementing IEventDispatcher Cannot Use Event Metadata Tag
May 4, 2011
we have following class
[Code]...
If you run these, you'll notice that the MXML-component can't hear the event. The question is simple, is there some way of getting the Event-metadata tag to work WITHOUT extending EventDispatcher? I would like to keep this class independent and use object composition as much as possible. And no, I don't want to use ActionScript addEventListener in the MXML-file. It doesn't tell the developer anything like good old Event metadata tag, and besides, that is not the point of this example. :)
I haven't used the implements keyword before, and I've been trying to use it to implement the IEventDispatcher class to see if this would allow me to use addEventListener() in a class that extends Object (this is my understanding of what it's for - correct me if I'm wrong).My class is like this:
i am using xmllistcollection for displaying data in list. whenever i run my application data is display in list control, but this warning has displayed in console. How can i remove this warning warning: unable to bind to property 'xmlnode' on class 'XML' (class is not an IEventDispatcher)
I am getting the error: warning: unable to bind to property 'Description' on class 'Object' (class is not an IEventDispatcher)
this is only when the data is bound to a List as an ArrayList, though. I had it in a Datagrid before (just as an Array) and it did not cause any issue. I'm not expecting to be able to bind any data back to the class 'object' not even sure which object exactly it's referring to.
My list data-provider is an ArrayList.. populated by a result event from an SQL query contained in another class:
private function loadDayComplete():void { var Meals:Array = _day.MealResults;
[Code].....
The day class I have is a data holder to get all the data (from several tables) for a 24 hour span.. I have classes for each individual datatype for editing them. But I'm not sure do I even need to worry about the warning if I don't plan on editing the values? it completely spams the console though whenever I touch anything, so I really would like to get rid of it. I tried an object proxy as I saw described elsewhere but nothing changed. The text is in label fields right now anyway, which can't even be edited.
overriding clone() while creating custom events?I read in the Flex cookbook that we need just in case we want to redispatch this event. Does this exactly means that when we want event to be bubbled up the display hierarchy , at that time our custom cloned event should be dispatched and not the Event object.
second - whats the need of metadata tag - [Event(name="modelEvent", type="com.abc.data.model.ModelEvent")] public class LoginModel extends EventDispatcher I understand we need to extend EventDispatcher in case we want to dispatch evnet from class.. but In what cases i would need to specify the MetaData TAg
Third is.. If i write -- "dynamic customEventClass extends Event".. Is there any use of Dynamic i can make?
I know actionscript does not allowed private contstructor at any time and But if i want to write a sinlgleton class in action script So how to implement it in actionscript.
Can anyone provide an sample example of a singleton pattern in actionscript?
It seems like a best practice in Flex/Actionscript to define static variables that define event names like so:
public class MyEvent extends Event { public static const EVENT_NAME:String = "eventName"; // Other stuff.. }
It's a great practice since the event name can change easily and not have to be modified throughout the code. So my question is: Is there any way to use this static const in my metadata event tag? I can't seem to do something like this:
Am I just ignorant of the proper syntax to do this, or is it impossible? Seems like it's just asking for hard to find bugs if someone decides to change the const since it is not strongly typed here.
LI am making a custom video player with FLVPlay back controlls. I am using custom progress bar. I am using "MetadataEvent.METADATA_RECEIVED" to get the duration of the uploaded flv file. It works in most of the cases but not in all. Therefore I am asking for anyalternative procedure that can provide the total flv file duration. I don't know even is it possible or not. I am familiarwith AS2 but new to AS3, so
I cannot believe that implementing a simple class should be so hard. I am trying out the simple example outlined on the Adobe website: url...I copied the class code from here to file Greeter.as in subdirectory Learning. Then I created a dynamic Text field on the stage.
I am creating objects for a game, they are all sprites. but I also want them to implement an interface. Is it possible to do both ? If not, how can i have an object have the capabilities of a sprite and also have it implement an interface. I am wanting to create another class that checks all my objects to see what datatype they are and evaluate them accordingly
I can't quite wrap my head around the differences. In what situations would I choose one over another?Specifically, I'm creating a sort of View component (in a very hack-y sort of way, I'm sure) that can redraw the interface with the same visual components (some of which change slightly depending on the mode) in 3 different modes: Normal, Small, or Fullscreen. The trick here is that both the Normal and Small modes can *also* go fullscreen as well, though you'll never be able to switch between Normal and Small in the same session (it's determined up-front).
Im trying to pass the metadata information received in the following code to another class. The below code generates a trace response of 162... so I am receiving the data I just need to be able to call the totalLength variable from another class with the same response of 162. I know this should be relatively easy...
It's relatively easy to find a solution to the problem of the eluding "onReleaseOutside" event in Actionscript 3.0. What is more difficult, is catching the original target object in the last event handler of a classic drag/drop event. A common implementation, provided by our beloved senoculor, is this:
I'm trying to work out how to use states in my Flex app.I've created two states, State1 and Stage 2. Both are based off the base state. I've created a few visual elements for State1, and given each of them includeIn="State1".But when I'm in design mode and click on State2, these elements are still visible?If I try to delete them while State2 is selected, all that happens is RemoveChild is added to the State2 tag.
Im wondering how to implement undo redo functionality with a TextArea. I already have an undoredo framework functionality working, now I have two questions.When do I start/stop a new undo/redo command, eg when a user hits undo, how far back do I go. How do I implement this(1.) in a normal TextAreay thinking:I thinking that I should create a new undo command, when anything but a alphanumber+space is hit. To do this I would use the keyDown event and test if the key is alpha num if it is not I will reset the command.
I'm looking for suggestions regarding implementing process flow / work flow management in a PureMVC based application. Our Flex application includes a number of processes such as account creation, payment processing, etc. Within our team, there is some discussion of how rigidly we should adhere to the PureMVC model. Within the PureMVC model, it seems reasonable that the current state in the process could be managed in a Proxy. Commands are clearly responsible for processing the actions required of each node and for node transitions. Mediators for managing the UI.
However, I think that there is an important bit still missing here: a ProcessController. The approaches we've reviewed all seem to either violate the PureMVC model (even just slightly) or make unreadable code. A proxy would maintain the state of the process. As such, it seems to be an appropriate way to implement the controller. However, this is putting a lot of business logic into the proxy.
So basically I have this map. On this map I have points, and when you click on these points it goes to a URL.The code setup is as follows:
Arrays to define the movieclip locations and another for the urls (this one is an associative array). I then create a function loop to make an event listener for each point. When the point is clicked it will run another function that handles the URLs. The URL function is to grab the target point that has been click, use the url array type to find the key, and then throw it in to the URLRequest.
So far I have this code:
var places:Array = new Array(); places = [ map.paulsens, map.paraburdoo, map.plutonic, map.wiluna, map.gwalia, map.wallaby, map.sunrise, map.moora, map.marvel, map.flyingFox, map.ernest, map.rosebery,
[code]....
So it's obvious to me that the openLink(); function isn't doing what I want it to. I can kind of guess because event.target isn't being turned in to a string or not pulling the array's type?
I'm interested in making an object that implements IEventDispatcher.
Does anyone know what the goes in addEventListener(...) dispatchEvent(...) etc. ?
My goal is to create my own simple Button that listens to mouse events, not 100% sure about the entire process (probably use hitTest and a single invisible pixel to trigger mouse events), this object extends BitmapData (Not an IEventDispatcher) so i have the option to use pure pixel rendering + mouse control.
I know that it is possible to add swf metadata to the compile command as a command option, but I can't find any documentation on how to access these metadata within the actionscript during runtime. We're trying to add a version number to the swf during compile time and then somewhere in our app we would retrieve it during runtime, here is the command example to add the description metadata.
mxmlc -description "version 1.2.3"
I know the swf metadata is used by search engines and other utilities to gather information about the SWF file, but surely you should be able to retrieve them in the actionscript during runtime?
I saw that you can embed meta-data into images very much like you can in mp3s, here.
Can someone point me to a tutorial of how to embed and read this sort of information w/ photoshop and flex together? I really wouldn't know where to start... Tried googling but I'm not sure I have the right keywords down.
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.
I have an actionscript, which makes a dynamic image wall. It gets parameters from FlashVar and changes the width and height dynamically.
When I use
[SWF(width="584",height="290")]
It's fully centered, but when I remove it, it's appear ~+50px from left. How can I set dynamically the SWF metadata or what I need to set for the correct view?
Top of the picture with SWF tag and the bottom is without SWF tag.
I am just just curious as to whether the [Bindable] metadata tag in ActionScript 3 can only be used within the Flex framework, or can it be used in "regular" ActionScript projects where Flex isn't used?
I have an actionscript, which makes a dynamic image wall. It gets parameters from FlashVar and changes the width and height dynamically.When I use [SWF(width="584",height="290")]It's fully centered, but when I remove it, it's appear ~+50px from left.How can I set dynamically the SWF metadata or what I need to set for the correct view
I have many buttons in Main.mxml. I'm trying to move the button functionality into a Class and have Event Listeners inside the class respond to Click and call other functions. I have written:
