Peachpit Press, publisher of my forthcoming “Effortless Flex 4 Development” book, has published another excerpt of the book online, free for anyone to read. (Technically New Riders is the publisher, but New Riders is owned by Peachpit.) This article represents a few pages from Chapter 4 of the book, “Event Management”. It follows the previous excerpt (also from Chapter 4), which you should probably read first if you haven’t. The first excerpt largely discusses event handling theory; in this excerpt you’ll see how to turn that theory into actual code. Even if you don’t yet know Flex and ActionScript, you should still be able to follow along. Most importantly, Flex is largely an event-driven approach to application development (conversely, Flash Professional is primarily a timeline-driven approach), so this section is really a key insight into what it’s like to use Flex.
I’m just about to do two “5 Tips in 5 Days” blog posts for Peachpit’s site. One will be specifically on the Flex 4 framework and the other will be on Flash Builder. Flash Builder, in case you’re not familiar with it, used to be called Flex Builder and is just a commercial IDE for developing using Flex. You don’t have to use Flash Builder as the Flex 4 framework and its SDK are available for free, but it does ease the process significantly. The book does not assume you’re using Flash Builder, either. There are specific instructions for how to create Flex applications using a text editor and the command-line IDE, but there are also areas that cover how you would do X or Y using Flash Builder. Most of the book focuses on the Flex framework, so it doesn’t matter what development tools you’re using.