Macromedia Flex defines a default Application container that lets you start adding content to your application without having to explicitly define another container. The Application container provides support for an Alert pop-up dialog box that you can use to signal errors to users.
The Application container supports an application preloader that uses a progress bar to show the download progress of an application SWF file. You can override the default progress bar to define your own custom progress bar.
This chapter describes how to use an Application container.
Version 1.5
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