By Joseph Lott, Kathryn Rotondo, Samuel Ahn, Ashley Atkins, Max Jackson
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In fact, in this chapter you’ll start work on an application that uses the YouTube service to allow users to search YouTube videos and play them back from their desktop. You’ll be able to accomplish all of that using just the material contained in this chapter. We’ll get started by looking at the metaphor that AIR uses for how it organizes an application into an application object and window objects. In the next section, you’ll learn how to work an application object and window objects using both Flash and Flex.
9 Quick-start AIR application for Flex In this section, you’ll build a quick-start application using Flex Builder. This application is simple, and not very practical. The point in this exercise is not to build a really useful application, but to walk through the steps of building an AIR application using Flex. This application simply uses a tree component to list the contents of a user’s file system, and allows the user to select image files and display them. The first step is to create a new Flex project, selecting Desktop application as the Application type.
2, all AIR applications must have a digital signature. When building an AIR application using Flash, you specify the certificate using this option in the form. 11. Select the Sign the AIR file with a digital certificate option, then select a certificate to use. If you’re using a certificate from a certification authority or an existing self-signed certificate you already created, you can immediately browse to find that certificate file. In that case, you can skip ahead to step 6. Otherwise, if you need to create a new self-signed certificate, continue to step 3.