Using Global Variable in Flex

 

1. Declare the global variable in the main .mxml file.

 

In the main .mxml file :

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="TryAS()">
    <mx:Script>
        <![CDATA[
            public var bookSize:Rectangle = new Rectangle(0,0,800,600);

            public function TryAS():void{
                trace("Hello World");
            }
       ]]>
    </mx:Script>
</mx:WindowedApplication>

2.Use Application.application.yourGlobalVariableName to access the variable.

 

In the .as class you write :

import mx.core.Application;

// Application.application.yourGlobalVariableName

Application.application.bookSize.width

Writing Action Script in Flex

Writing Action Script in Flex

Example of a .mxml file :

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="TryAS()">
    <mx:Script>
        <![CDATA[
            import Puzzles.*;
            public function TryAS():void{
                trace("InitPuzzles");
            }
       ]]>
    </mx:Script>
</mx:Application>

Note : Adobe Flex 2 (Training from the Source)

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Lesson 24 Using Shared Objects

Shared Objects 可以由複雜的資料結構組成(話是這樣說沒錯，但是目前的經驗是，也只有簡單的資料型別可以，BitmapData 等大型的東西就要轉成Byte 寫進去，再自己 parse出來了)。學到的重點是使用前最好 instantiate 給它 ex. example.data.accounts = new Array();。另外就是，如果存的東西比較複雜 ex. boolean + array => example.data.accounts = {hasWork:Boolean, buyBooks:Array}。