MACROMEDIA FLEX-GETTING STARTED WITH FLEX Manuale Utente Scaricare il pdf (Pagina 41)

that the HTTPService generates. You can see this in Ex-

ample 3-5.

Example 3-5. The second import statement

<mx:Script>

<![CDATA[

import mx.collections.ArrayCollection;

import mx.rpc.events.ResultEvent;

]]>

</mx:Script>

4. Create a bindable private variable named photoFeed of

the ArrayCollection class after the import statement in

the mx:Script block. The photoFeed ArrayCollection is

populated with the HTTPService response data. Exam-

ple 3-6 shows the completed script.

Example 3-6. The completed script

<mx:Script>

<![CDATA[

import mx.collections.ArrayCollection;

import mx.rpc.events.ResultEvent;

[Bindable]

private var photoFeed:ArrayCollection;

]]>

</mx:Script>

With the bindable XML variable created, it’s time to create the

Submit button click handler, and send the HTTPService request

and keywords to the Flickr API:

1. Using the Outline view, locate the Button component in

the HBox component. Clicking the Button component in

the Outline view locates the Button component code in

Source mode. This is shown in Figure 3-6.

A Flickr Viewer | 25

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MACROMEDIA FLEX-GETTING STARTED WITH FLEX Manuale Utente Pagina 41