Flex :: Extra Wrapper Or Decorator Class Needed When Using SWC Assets?
Sep 10, 2009
I'm still learning how to compile with the Flex SDK. And I'm learning how to use SWC files and [EMBED] statements to pull my assets into my application.With the Flash IDE, I can link a library asset to a class and it's automatically embedded into my custom class. So that's 1 asset in 1 class. With the Flex SDK and SWC files, it seems I can only* pull in assets at the variable level, so I end up with my custom classes containing yet another class -- this means I have an extra wrapper/decorator (whatever you want to call it) class that I didn't have when using the Flash IDE.Is this what people typically do? Doesn't that seem superfluous?I've read Colin Moock's 'Essential Actionscript 3.0', where he mentions something about embedding a SWF at class-level as binary data.
Select a school listed in the first datagrid, and display all the student records /details of that school in the next datagrid. But, since datagrid is editable and requirement mentions : "Use a Wrapper class around the object to get the data, set the same and save. Ensure wrapper is bindable to take into consideration the updates being made to datagrid text fields."
I have an object which is a type of a Data Access Objects i.e. DO.
mySchool:mySchoolDO.
The mySchoolDO is an actionScript class of following code :
public class mySchoolDO { public var schoolName:String; public var schoolLocation:String;
[code]....
The showSchoolStudents will display all the details of students on to the datagrid. But, my datagrid is editable. And, I want to use WRAPPER CLASS around this object such that
a> I can retrieve individual values as present in studentsDO i.e. studentID, studentCourses, studentGender, studentPhone.
b> I shouldbe able to set the values as they are updated in the visual datagrid.
c> Finally save all the data and submit on submit click.
I have a movie that is 2000px in height and some objects are duplicating vertically adding up by 100px. Say I have 5 objects so there is only 500px of content, is there anyway to use javascript from flash to limit the scrollbar to 500px instead of the full 2000?
I have an SWC which includes a number of Assets for my project. Within this SWC is also a static AS file which contains Class declarations for each image in the library. For example, the SWF contains these images:
When I make changes to a Flex project and rerun the project, it seems that FlashBuilder4 rewrites my html wrapper that embeds the SWF. But I have additional javascript code in the html wrapper and don't want to keep losing my code. I had to re-write the code once and it was a pain in the neck.How do I stop it from re-writing the html. And the related question: how do I stop it from deleting the html during a clean?I basically need to exclude the html from its processing once it's been created the first time. P.S. I'm using Flash Builder 4, but I suppose it's the same in Flex Builder 3.
I have an ArrayCollection containing bindable objects. I would like to access them in multiple places like below (there's only one label for clarity). How can I achieve that?hould I write some kind of wrapper for ArrayCollection dispatching special event (which?) catchable by Flex event mechanism.
In Flex builder 3 when I create a new flex application targeting the flex 4 sdk, it wont generate a html wrapper file. I have hunted around the web for answers, but no success. I have made sure the box is checked in the project properties to generate html wrapper.
The only workaround is to target an older version of the sdk (i.e. 3.2), which will cause the wrapper to be generated. Then I can revert the project to sdk 4. This then means I can never do a clean of my project because this will result in the wrapper being deleted. Has anyone else come across this? Is this just a bug with Flexbuilder3?
I'm building an Flex 4 application using IntelliJ IDEA 9.0.2 generated sample Flex application. I replace the generated mxml with the following code from the book Hello Flex 4. It simply crashes the browser when I run it. It says "Waiting for [URL]..and then crashes I tried it on both FF 3.5.9 and Chrome 4.
I'm using the new Flex 4.5 (and the flashbuilder 4.5) at this moment.I have a list that I displays all my parameters and standard(first time you start the application) they have a gray V as decorator.When I was developping in Flex Hero I've made that if I clicked the item the gray V was replaced by a green one.Now in Flex 4.5 the same code doesn't work.The strange thing is When I go to my previous view and then go back to my list with my arameters he does change those who were clicked. I also use setStyle and change the color to red if it's clicked and this works, but changing the decorator doesn't.I made a small example to show:
And so far everything is working. However, I want my Concrete class to load in an item from the library (basically the graphic for that item). This works fine when just loading in the Concrete class, but as soon as I add a decorator the graphic disappears, and I'm not sure why.
The code so far is:
My Abstract Class
Code: package todd.flashBook.navigation{ import flash.display.MovieClip; public class navButton extends MovieClip{
I have linked a MovieClip to a class. After that I have places some movie clips of them on the stage. And now I like to do something with them, but I couldn't because some extra instances are created (I wonder how???) and they make me problems.The names of instances of the class I placed on the Stage are legs1 legs2 legs3,and the extra instances are: instance21, instance25,...(and they are not visible on the Scene)
I've created an fla whose document class imports some static functions. The library also has some linked symbols (should they also be imported in the doc class?). I exported the fla as an swc, and tried using it in a new project. Whats the right way to reference this? And do i need to import the swc into this new fla to use them?
I have a project both Flex and WWW and they are very closely connected. I want to put them both into into one SVN. I want to make revisions for changes that take place exactly both in flex and WWW at the same time. My question is that do I have to stick to "subclipse" (it would desynchronise changes for flex and WWW in one revision)? Would be possible to make revisions using only my tortoiseSVN without subclipse?
what I am trying to do is create class that loads assets(images) from library and places them on the a stage.I want my class to be something like this...I know it needs to be more complex, I am just trying to "draw" out my idea for you, I have tried using getDefinitionByName to pass the linked MovieClip and some variations on that but for some reason I can't get it to work.[code]
I want an air application to be able to update the assets it uses, but minimizing the download needed, so only downloading files added since it last updated.I'm thinking this would include a server portion which would zip the needed files based on a version number? Has anyone implemented anything similar / got any thoughts on the best approach to building this sort of system?
I had a class that I was passing a simple argument to like so:
var quiz_1_2:CaseStudyQuiz = new CaseStudyQuiz(2); addChild(quiz_1_2);
I now would like to use this class for multiple MCs in my library. I thought I could let Flash create a class for each of them and specifying the CaseStudyQuiz class as the Base class. When I do that, I get the following error:
when you have a document class for something, how do you load the symbols?lets say you have a gallery and a few buttons for it, and you will load that gallery swf into main site.is it better to leave these symbols on the stage or load them from the library or something else?
I have an app where a user puts in the required info into text inputs inside a titlewindow pop up and it sends the data entered into a datagrid. This first time when I call for the popup and enter info it works fine. Here's the problem: the next time I call the component pop up and click anywhere on the popup, including textInputs, the first the item in the array is automatically entered into the textInput where the user is supposed to enter the data themselves (BTW this textInput is also a autocomplete component).What I want is nothing to entered into textinput until the user inputs the data themselves. I've been tweaking with it for hours and im stumped. Here's the code: (this is main page)
I've seen that it's very simple to create a document class (a class associated to the main timeline itself), or an instance of a class which is linked to a single asset (e.g. a movie clip).But what if I need to implement a class (let's call it Main) which uses multiple assets from the Flash library? The only way I know to do this is by instantiating any asset with its linked class, and passing them all to the Main constructor like this:
ActionScript Code: var asset1:Asset1 = new Asset1(...); var asset2:Asset2 = new Asset2(...); var asset3:Asset3 = new Asset3(...);
[code].....
This is kind of a tedious process, especially when the composition hierarchy is long and you have to pass them all as arguments through many nested classes.For instance, I needed to link a preload sprite (the typical circle in gradient color which is constantly rotating until the load is complete) from the library to any thumbnail class of a gallery, which in turn is part of another class, which in turn is part of the main class. So I needed to pass this preload clip as an argument throughout the nested classes.
We are loading external swf content into an adobe air application. Content is provided by an increasing number of third parties.Being third party content, it will be loaded in a separate security domain (trustContent=false) and a sibling app domain (loadForCompatibility=true). We are doing this using the Loader class.What are the features/options/approaches that would cause problems when using the swf as external content?
I am interested in any kind of issues, as we have already reproduced issues with content that occur regardless of the app domain / security domain where its loaded ( and occurs also in both Loader and SWFLoader).
Does anyone have any knowledge (preferably with links to make it official) about how/if Flash/Flex culls objects not in view, to stop them getting drawn when not needed? A specific cases: I have an 800x600 panel (a Canvas or Sprite, or other container) containing loads of Sprites representing individual game objects like asteroids or spaceships or missiles or map-tiles. The game world might be 5000x5000 so can I naively position Sprites anywhere in this range and let Flash cull them effectively? Or do I need to manage visibility somehow at a higher level (like manually removing them from the parent) to avoid performance issues?
I want to reuse the TitleWindow's closeButton inside a simple Flex component I am writing, but I'm having trouble getting it to compile. I copied the code that deals with the closeButton, which looks somewhat like this:
I want to extend DropDownList control to include an option for creating or editing the options. For example; for a list of projects in the dropdown list, there will be another option that says "Create new project..." or "Edit projects..." and this will be the last option in the list. When user selects this option, the selectedIndex or selectedItem will not change and corresponding action will be taken (for example a popup window shows up).This will be a convenient way for the end user. Now I want this to work independent of the context and the class must be reusable. User will only specify the optionText and optionFunction to work this out. The basic structure of the class looks like this:
public class OptiveDropDownList extends DropDownList { private var _enableOption:Boolean;
When I build the project using Flex Builder, it compiles fine. However, when I try to compile it using ANT, I get the following error:
Error: Problem finding external XML: assets/data/help.xml
How come ANT isn't finding the XML file? Apparently it knows the source path otherwise it would not have found the component to begin with. I added the source path to the target anyway, but it doesn't seem to have made any difference:
My main.swf loads symbols from other swfs at runtime. If I keep all the swfs(main and others)on my server, things work fine. But if I keep all of them on a CDN, one particular symbol won't display occassionally. With flash tracer plugin for firefox I am able to see that all the symbols have been loaded and their z-indices are as they should be.
I have some text content in a scrollable container and I want the user to be able to scroll it having the nice effect of it moving according to the swipe velocity and to keep scrolling until the user taps it. (as many applications for mobile touch screens).
I am thinking to combine events to do it. I will catch the swipe to know the direction, have mouse in and out to see velocity and legth of the swipe, and then keep scrolling with a proportional velocity and length until the user taps the screen.
(I donīt want to do the work and find out it was really simple and I just didn{t knew how)
Is there a way to take a compiled SWF file and figure out how much of it's size is used by code and how much is assets (images, etc)? I'd like to see if I can get my Flex SWF smaller but I'm unsure what's taking up the most space.
