MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Manuale Utente Scaricare il pdf (Pagina 52)

TUTORIALS POINT

Simply Easy Learning Page 47

Flex – Basic Controls

This chapter describes basic controls of Adobe Flex:.

very user interface considers the following three main aspects:

 UI elements : These are the core visual elements the user eventually sees and interacts with. Flex provides

a huge list of widely used and common elements varying from basic to complex which we will cover in this

tutorial.

 Layouts: They define how UI elements should be organized on the screen and provide a final look and feel

to the GUI (Graphical User Interface). This part will be covered in Layout chapter.

 Behavior: These are events which occur when the user interacts with UI elements. This part will be covered

in Event Handling chapter.

Flex UI Elements:

The Flex UI library provides classes in a well-defined class hierarchy to create complex web-based user interfaces.

All classes in this component hierarchy has been derived from the EventDispatcherbase class as shown below:

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MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Manuale Utente Pagina 52