Apache Flex
 |
|
| Developer(s) | Apache Software Foundation and Adobe Systems |
|---|---|
| Initial release | June 20, 2004 |
| Stable release |
4.15.0 / January 11, 2016
|
| Development status | Active |
| Written in | ActionScript, Java |
| Operating system | Windows, macOS, Linux, Android, iOS, BlackBerry Tablet OS |
| Available in | Various between websites |
| Type | Software development kit application |
| License | Apache License version 2.0 |
| Website | Apache Flex and Adobe Flex |
Apache Flex, formerly Adobe Flex, is a software development kit (SDK) for the development and deployment of cross-platform rich Internet applications based on the Adobe Flash platform. Initially developed by Macromedia and then acquired by Adobe Systems, Adobe donated Flex to the Apache Software Foundation in 2011 and it was promoted to a top-level project in December 2012.
The Flex 3 SDK was released under the open source Mozilla Public License in 2008. Consequently, Flex applications can be developed using standard Integrated development environments (IDEs), for example IntelliJ IDEA, Eclipse, the free and open source IDE FlashDevelop, as well as the proprietary Adobe Flash Builder. The latest version of the SDK is version 4.15.0. It is released under version 2 of the Apache License.
Flex uses MXML to define UI layout and other non-visual static aspects, ActionScript to address dynamic aspects and as code-behind, and requires Adobe AIR or Flash Player at runtime to run the application.
Macromedia targeted the enterprise application development market with its initial releases of Flex 1.0 and 1.5. The company offered the technology at a price around US$15,000 per CPU. Required for deployment, the Java EE application server compiled MXML and ActionScript on-the-fly into Flash applications (binary SWF files). Each server license included 5 licenses for the Flex Builder IDE.
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