Yes Radley, you described me perfectly. :-) I am at point 2).... And I don't want to use the frameworks that are out there, I want to learn it for myself.
But, thank you for replying! Cor -----Original Message----- From: flashcoders-boun...@chattyfig.figleaf.com [mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Radley Marx Sent: woensdag 20 januari 2010 20:54 To: Flash Coders List Subject: Re: [Flashcoders] Using MVC for a site framework (for non-programmers) Don't let the programmers on the list intimidate you into learning a bunch of framework mumbo-jumbo. If you learned Flash/Flex after earning a Computer Science degree, it makes sense because they *start* with OOP day one in school. But for creative Flash peeps, frameworks are a Brazilian black hole best left to *cough* experts. The basics of MVC are: Model - this means "data". It's the stuff you want to show (list of stuff, etc) View - these are your graphic layouts. Best way to grok what this is for: think my laptop view, my iPhone view, etc. Controller - this is the meat of your app. It figures out what data you have and which view to show it in. So yeah, MVC is very helpful, especially in the multi-screen age. As for Cairngorm, PureMVC, etc - leave them alone. Completely. You'll know when it's time to use them: 1) when you *have* to work with a team that uses them 2) you're advanced enough as a developer that you seek out new ways to program instead of being creative... *snark* -radley On Jan 19, 2010, at 10:48 AM, Cor wrote: > Hi Jason, > > I hope you don't mind me addressing you of list. > If you do, please ignore this message and I apologize to you! > > I am trying to grasp the MVC pattern, but it is very hard for me. > I am looking for a very simple example which explains the way it works. > If you can help me with this, I would be very greatful. > > Thanks in advance. > Kind regards > Cor van Dooren > The Netherlands > > > -----Original Message----- > From: flashcoders-boun...@chattyfig.figleaf.com > [mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill, > Jason > Sent: dinsdag 19 januari 2010 17:35 > To: Flash Coders List > Subject: RE: [Flashcoders] Using MVC for a site framework > > This is my opinion, I'm sure others will have their own that may differ > (and probably recommend you check out some frameworks - though that can > be a lot to tackle) : the controller would listen to the model to know > when the data is ready and available. It would then tell the view to > start building. The main class would hold the references to the model, > view, controller, but would not command any classes to do anything > really. You could have the view listen to the model as well and skip > the controller doing it, but I like the view to be more decoupled than > that. I usually try and keep most listeners in the controller where > possible, though many end up in the view, depending on the situation. I > never have listeners in the model though, only events that are > dispatched. > > I actually have the model start and do it's own XML loading, but you > could have the controller tell it to do that, just seems like an > unnecessary step. > > Another thing I do is have a main class called MVC that extends Sprite > or DisplayObject which initializes the model, view, controller, in > order, dispatches an event when all three are initialized, and provides > access to each via a singleton implementation. It allows me to access > any part of a model, view, controller from any other part just by > calling MVC.instance. Then it's just var _mvc:MVC = MVC.instancel; then > _mvc.model.myprop or _mvc.view.update() or whatever. That class looks > like this: > > package mvc > { > import events.MVCEvent; > import events.view.ViewEvent; > import events.controller.ControllerEvent; > import events.model.ModelEvent; > import mvc.controller.Controller; > import mvc.model.Model; > import mvc.view.View; > import flash.display.Sprite; > /** > * ... > * @author Jason Merrill - Bank of America > */ > public class MVC extends Sprite > { > public var view:View; > public var model:Model; > public var controller:Controller; > > private static var _instance:MVC; > > public function MVC() > { > if ( _instance != null ) > { > throw new Error( "Only one MVC instance should be > instantiated. Use MVC.instance instead." ); > } > else > { > _instance = this; > } > } > > public function initialize():void > { > model = new Model(); > view = new View(); > controller = new Controller(); > > model.addEventListener(ModelEvent.INITIALIZED, > onModelInitialized); > > controller.addEventListener(ControllerEvent.INITIALIZED, > onControllerInitialized); > view.addEventListener(ViewEvent.INITIALIZED, > onViewInitialized); > > model.initialize(); > } > > private function > onModelInitialized(event:ModelEvent):void > { > > model.removeEventListener(ModelEvent.INITIALIZED, onModelInitialized); > view.initialize(); > } > > private function onViewInitialized(event:ViewEvent):void > { > addChild(view); > view.removeEventListener(ViewEvent.INITIALIZED, > onViewInitialized); > controller.initialize(); > } > > private function > onControllerInitialized(event:ControllerEvent):void > { > > controller.removeEventListener(ControllerEvent.INITIALIZED, > onControllerInitialized); > dispatchEvent(new > MVCEvent(MVCEvent.INITIALIZED)); > } > > public static function get instance():MVC > { > if ( _instance == null ) > { > throw new Error( "MVC singleton instance not created > yet." ); > } > return _instance; > } > } > > } > > > Jason Merrill > > Bank of America Global Learning > Learning & Performance Soluions > > Join the Bank of America Flash Platform Community and visit our > Instructional Technology Design Blog > (note: these are for Bank of America employees only) > > > > > > -----Original Message----- > From: flashcoders-boun...@chattyfig.figleaf.com > [mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of allandt > bik-elliott (thefieldcomic.com) > Sent: Tuesday, January 19, 2010 11:09 AM > To: Flash Coders List > Subject: [Flashcoders] Using MVC for a site framework > > Hi guys > > I'm currently feeling my way through the o'reilly design patterns book > and > am going through the mvc design pattern as a way of dealing with > (micro)site > structures - dealing with opening and closing pages, loading data etc > but i > have a couple of questions that you guys will probably be able to > answer... > > i have a config xml file that points to the data xml, site css and > fonts.swf. I take it that the controller should have the responsibility > of > loading those files and storing the results in the model. However if i > include the site structure in the data xml as i would usually do, which > part > of the triad should be instantiating the views to create the pages? The > book > is set up that the Main.as class would be instantiating the views and > creating the site structure but that doesn't fit if the controller is > loading the xml files into the model. > > I would guess that the controller would trawl the xml and instantiate > the > page views and add them to the model but i'm not 100% on this > > I'd really appreciate your time on this matter as I'd like to build a > set of > classes that work with more than one project > > thanks > a > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.730 / Virus Database: 270.14.149/2631 - Release Date: 01/18/10 > 17:56:00 > > _______________________________________________ > Flashcoders mailing list > Flashcoders@chattyfig.figleaf.com > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > _______________________________________________ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders No virus found in this incoming message. 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