MACROMEDIA FLEX-GETTING STARTED WITH FLEX Manuel d'utilisateur télécharger pdf (Page 58)

Example 4-5

is some sample code for an absolutely positioned

layout.

Example 4-5. An absolutely positioned layout

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="absolute" backgroundColor="#FFFFFF"

backgroundAlpha="0">

<mx:Canvas x="23" y="34">

<mx:Button label="< prev" x="4" y="97" />

<mx:Image source="assets/animals03.jpg" x="85" y="4" />

<mx:Label text="Photographed by Elsie Weil" x="85"

y="230" />

<mx:Button label="next >" x="381" y="97" />

</mx:Canvas>

</mx:Application>

Figure 4-5 shows the result.

The Canvas Container (Relative Positioning)

With relative positioning, also called constraint-based layout,

you can anchor the sides or center of a component to positions

which are relative to the component’s container. The size and

position of the components change when the user resizes the

Figure 4-4. A combination VBox and HBox layout

42 | Chapter 4: Flex Controls and Layout

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MACROMEDIA FLEX-GETTING STARTED WITH FLEX Manuel d'utilisateur Page 58