Flex 4 in brief

Flex 4 – Useful Links

What’s new in Flex 4

The work on the Flex SDK has been focused around three primary themes:

• Design in Mind: providing a framework that supports a new degree of expressiveness, easily enabled with tools.
• Developer Productivity: improving compiler performance and adding productivity enhancements to language features like data binding.
• Framework Evolution: taking advantage of new Flash Player capabilities and adding features required by common use-cases.

Differences Between Flex 3 and Flex 4

Player dependency

Be sure that you compile against Flash Player 10. The Flex 4 SDK requires Flash Player 10 support.

Type selectors require a namespace

A CSS type selector names the Flex class to style. For example, the following are type selectors for Button and DateField:

Theme change

The default theme for Flex 3 (MX) components is now the Spark theme. Therefore, your application may look and size itself differently when you compile it using the Flex 4 SDK.

Automation Library location change

In Flex 3, automation libraries were present under {sdk}/frameworks/libs and in the Flex 4 , it is available under {sdk}/frameworks/libs/automation.

http://flexponential.com/2010/03/22/introducing-flex-4/

http://www.eonflex.com/?p=320

Flex 4 Livedocs

Introduction to Flex 4

Flex 4 Examples (Peter DeHaan)

What’s New and Cool in Flex 4?

Flex 4 Overview (InsideRIA)

Flex 4 Overview Slides

Introduction to Flex 4 Skinning

Skinning Components and Applications in Flex 4 – Video

Skinning and Components in Flex 4’s Spark Architecture

Flex 4 Spark Skinning Post

Custom PopUp Rating Component in Spark Flex 4

Flex 4 Effects Part 1

Flex 4 Effects Part 2

Effects in Flex 4 Video

Stretch and Squash Effects in Flex 4

Spark Layouts

Spark Horizontal and Vertical Layouts

Flex 4 and Custom Layouts

Flex 4 Layouts Video

Spark Virtualization

Flex 3 versus Flex 4 State Management

Flex 4 States Video Tutorial

Advanced CSS Video

Flex 4 CSS Namespaces

Flex 4 – CSS Advanced Selectors

FXG 1.0 Specification

Text Layout Framework (TLF)

Text Layout Framework Overview Slides

Linked Containers in Flex 4 using Text Layout Framework

http://www.skill-guru.com/blog/2010/04/29/introduction-to-javafx/