RIA - Flex and ActionScript RIA – Flex and ActionScript CS590 - Ashok Sahu

RIA - Flex and ActionScript TOC Introduction Technologies Demo

RIA - Flex and ActionScript Introduction and Motivation RIA – Rich Internet Application, ADOBE Flash - cross-platform multimedia experiences and user interfaces. Flash - very pleasing user interfaces. Picasa, Flickr and YouTube are only a few examples There’s a very impressive Flash web app called Gliffy that imitates Visio (this was created with OpenLaszlo,)Gliffy Apollo, a cross-OS runtime that allows you to use Flex to create desktop RIAs. Apollo

RIA - Flex and ActionScript Flex 2.0 Basics MXML  MXML is very similar to HTML in that it provides tags for user interface elements  defines visual components such as data grids, buttons, combo boxes, trees, tab navigators, and menus  non-visual components, Web service connections, data binding, and effects.

RIA - Flex and ActionScript Flex 2.0 Basics ActionScript  built-in objects and functions that allow you to create your own objects and functions like many object-oriented programming (OOP) languages Flex Data Services  A robust messaging architecture that provides services that automatically synchronize data between client and server  Real-time data push and publish-subscribe messaging  Collaborative and disconnected applications

RIA - Flex and ActionScript Using XML in Flex The Model tag The Picasso Code Dan Blue Fiction Cubist paintings reveal a secret society of people who really look like that

RIA - Flex and ActionScript Using XML in Flex <![CDATA[ private function bookHandler(theBook:Object):void { trace(theBook.name); trace(theBook.author); } ]]> The Picasso Code Dan Blue Fiction Cubist paintings reveal a secret society of people who really look like that

RIA - Flex and ActionScript Using XML in Flex When dealing with XML files, the most commonly used event is creationComplete.  This event is generated when the file is fully loaded and is usually placed inside of the Application tag.  In this case, when the application is fully loaded, you want to pass the XML file (the ID of the Model tag) to the handling function (bookHandler).

RIA - Flex and ActionScript Using XML in Flex Using the HTTPService tag  The HTTPService tag reads XML dynamically  HTTPService class, uses the send() function, which tells the XML file to send its information.  In actuality, it sends the information to the Flash Player  Class HTTPService handles all of the mechanics in the background

RIA - Flex and ActionScript Demo