文件名称:
[Flash.Builder.4.&.Flex.4._典].Flash.Builder.4.and.Flex.4.Bible
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文件大小: 12mb
下载次数: 0
上传时间: 2010-11-14
详细说明： When Macromedia first released Flash MX in 2002, the product was branded as the new way to build Rich Internet Applications (known by the acronym RIA). The term was invented at Macromedia to describe a new class of applications that would offer the benefits of being connected to the Internet, including access to various types of Web-based services, but would solve many of the nagging issues that had been inherent in browser-based applications since the mid-1990s. Using Flash Player to host graphically rich applications delivered as Flash documents would address issues such as the ongoing differences between Web browsers in implementation of Cascading Style Sheets (CSS) and JavaScript. And because such applications would be able to leverage Flash Player’s original strengths, including animation and delivery of rich media (audio and video) to the desktop, the applications could be both functional and visually compelling. The first push into the new frontier of RIAs met with mixed success. Many applications built and delivered with Flash MX and ColdFusion MX (Macromedia’s recommended middleware application server software at the time) were very impressive. Perhaps the best known of this class is the iHotelier hotel reservations application, which is still used by many large hotels around the world. The application presents customers with a Flash-based interface they can use to find and reserve hotel rooms from a visually intuitive single-screen interface. A customer can input information and get a nearly instantaneous response without having to navigate the multi-page interface of classic HTML-based Web applications. Meanwhile, developers who were creating these applications were madly pulling their hair out. Building data-centric applications in Flash meant that they were working with a binary source file, making it difficult to integrate with source control systems. At the time, ActionScript wasn’t particularly object-oriented (although this part of the situation improved drastically with the release of ActionScript 2 in Flash MX 2004), and there was no enforcement of code placement standards. Its loose data typing and lack of strong compile-time error checking or debugging tools led to phenomena such as “silent failure” — the moment when something that’s supposed to happen doesn’t, and no information is offered as to the reason. In large multi-developer environments, figuring out where to put the code in a Flash document was a significant part of the application planning process, because the product wasn’t really designed for application development. And the ActionScript editor built into Flash gave experienced developers fits. Java developers, in particular, were used to sophisticated code editors, and working in Flash slowed their productivity and increased their frustration. ...展开收缩
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