MACROMEDIA FLEX 2-MIGRATING APPLICATIONS TO FLEX 2 Manual do Utilizador descarregar pdf (Página 163)

Renamed invalidateStyle() 163

Overriding a method

If the method is overriding a method in a superclass, add the override keyword as the first

attribute:

override public function createChildren():void

If the getter/setter is overriding a getter/setter in a superclass, add the override keyword as

the first attribute:

override public function get label():String

override public function set label(value:String):void

By convention, setters should use the identifier value for their argument.

Clip parameters removed

Remove anything related to the clipParameters variable.

Initialization sequence changed

In Flex 1.5, the component initialization sequence was as follows:

1. Constructor

2. init()

3. createChildren()

4. commitProperties()

5. measure()

6. layoutChildren()

7. draw()

In Flex 2.0, the init() method has been removed, and the new updateDisplayList()

method replaces the

layoutChildren() and draw() methods. You can move logic that was

formerly in the

init() method to the constructor. For a complete description of the

initialization sequence for Flex 2, see Chapter 10, “Creating Advanced Visual Components in

ActionScript,” in Creating and Extending Flex 2 Components.

Renamed invalidateStyle()

The invalidateStyle() method has been renamed to styleChanged().

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MACROMEDIA FLEX 2-MIGRATING APPLICATIONS TO FLEX 2 Manual do Utilizador Página 163