With Macromedia Flex 1.5 you can build runtime shared libraries (RSLs) that can be individually loaded, cached, and used by multiple applications. This article demonstrates how easily you can integrate RSLs into your Flex applications. It also addresses the performance tradeoffs that you must consider when building dynamically linked applications.

Requirements

To complete this tutorial you will need to install the following software and files:

Macromedia Flex

• Try
• Buy
  

Macromedia Flash Player

• Download
  

Tutorials and sample files:

• rsl_examples.zip (ZIP, 4K)
• The examples assume that you have enabled the <keep-generated-swfs> and <compile-report> options in your Flex configuration file

Prerequisite knowledge:

• Familiarity with ActionScript and MXML (the Macromedia Flex Markup Language).
• Because this article explores issues related to caching performance, you need to understand how to clear your browser cache. On Windows in Microsoft Internet Explorer, select Tools > Internet Options > Delete Files. This is sometimes insufficient, and it may be necessary to close all browser windows as well, including other Flash-enabled applications such as certain instant messenger clients. Even if you do not use Internet Explorer for the examples in this article, you must flush the Internet Explorer browser cache, because the Windows version of Flash Player uses the WinInet layer for loading RSLs.

 

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