Flex is a framework for creating rich internet applications (RIAs) using Flash Player. It includes languages like ActionScript and MXML, a component framework, and an integrated development environment. Flex allows building cross-platform apps with rich controls that run on all browsers. Developers use MXML to lay out user interfaces and ActionScript for interactivity. It provides reusable UI components and handles events. Flex apps have advantages like broad reach, performance, and rich media support, though they require the Flash Player and have no server-side components.

1. INTRODUCTION TO
FLEX
Sumit Ray
Prajyot Rajigare

2. • What is flex
INDEX
• Why use flex
• What do you code flex apps in
• MXML
• ActionScript
• Flex Component
• Flex Events
• Pre-requisite for flex developer
• Recent Versions Of Flex
• Competitors
• Advantages
• Disadvantages
• Final word

3. WHAT IS FLEX
Flex is a framework for creating RIA’s based on flash player.
Defining exactly what Flex is can be confusing because
Flex actually includes a combination of
different technologies.
Flex is not a single software product,
but instead includes the four main pieces

4. 1. Languages
WHAT IS FLEX
• ActionScript
• MXML
2. Component Framework
• Flex SDK
3. Integrated Development Environment (IDE)
• Flex Builder
4. Cross-browser runtime
• Flash player

5. WHAT IS FLEX

6. WHY
To develop RIA’s USE FLEX
Client side Intelligence
Cross-platform, accessible applications
Richer and capable control library
It'll run on all the current browsers
on all platforms.

7. WHAT DO YOU CODE FLEX APPS IN
MXML
 XML-Based language used to describe
UI layout and behaviors of FLEX apps
ActionScript
Object oriented programming
language used to write
methods in the application

8. WHAT DO YOU CODE FLEX APPS IN
• It is the Heart of Flex
MXML
• Used to lay out user interface components
• Also to declaratively define non-visual aspects
of an application,
 Access to data sources on the server
 Data bindings between UI
components and data sources
on the server.

9. WHAT DO YOU CODE FLEX APPS IN
• It is more structured than HTML, and it provides a MXML
much richer tag set
e.g. data grids, trees, tab navigators, accordions,etc.
• You can write an MXML application in a single
file or in multiple files
• MXML also supports custom components
written in MXML and ActionScript files.

10. WHAT DO YOU CODE FLEX APPS IN
• Is the programming language for the flex ACTION SCRIPT
• It enables interactivity, data handling
• ActionScript is executed by the ActionScript
Virtual Machine (AVM).
• It is easy to being familiar with AS who
has basic knowledge of OOP.

11. FLEX
• Component library provides UI controls
COMPONENTS
 Simple : Buttons, Checkboxes, Radio Buttons
Complex : Data grids and combo boxes
• Developers use provided components to
design complex layouts and use
(or modify) the skins for a better look

12. • Flex applications are event driven FLEX EVENTS
• When the user interacts with an interface component
or when changes occur in the appearance of a
component, an event is dispatched
• When an event is dispatched, event listeners,
also called event handlers, designed in
ActionScript are called on to process
the event

13. PRE-REQUISITE FOR FLEX DEVELOPER
• Familiar with Object oriented concepts.
• Some exposure to web development and basic knowledge
related to web applications
• Knowledge of web services using Java / Spring
• Knowledge of basic and complex UI Components.

14. • Flex 1.0 VERSIONS
March 2004
• Flex 1.5
October 2004
• Flex 2.0
June 28, 2006
• Flex 3.0
February 25, 2008

15. VERSIONS
• Flex 4
March 22, 2010
• Flex 4.5
November 30, 2011
• Flex 4.6
February 22, 2012

16. • OpenLaszlo
COMPETITORS
• Microsoft Silverlight
• Curl
• JavaFX

17. 
Flex is for everyone, Flex is for all
ADVANTAGES

Flex applications have boadest reach

Cross-platform and native experience

Flex makes your application look good

Performance

Real time

Rich media

Offline Support

Accessible

18. 
DISADVANTAGES
There is no server-side component to ActionScript so you need
to find a way to pass data between Flex and your backend.
Flex does not have any built-in support for multithreading,

which complicates the situation further

Flex does not read or write files to the end-user’s
computer. This is a restriction of the Flash Player.

And the most important thing is, we
need adobe flash player to run the
application.

19. FINAL WORD
“ Flex is for flexible..”

20. Thank you..!