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（这是一个编辑中的翻译页面，尚未完成）

这里是 Flashlite 的联结。若您是指光源的话请参考 flashlight 。

Adobe Flash Lite 是 Adobe Systems 公司所出版的软体中，Adobe Flash Player 的轻量化版本。这个版本是设计给行动电话以及其他携带式电子设备，如：Chumby、iRiver所使用的。如此一来，使用者就得以在这些设备上欣赏过去只能在个人电脑上播放的多媒体内容、或是使用Adobe Flash Tools所开发的程式。

Flash Lite 适合在那些连满足执行 Flash Player 完整功能的最低硬体需求都不及的设备上执行。

In Addition to Flash Lite, which is typically incorporated into a mobile device operating system as provided by the manufacturer, the full Adobe Flash Player may also be available for installation from the mobile device's app store (and currently only if the device has an ARM Cortex-A8 processor).

Technical overview

Flash Lite is a development technology implemented at the client-side, or user interface layer. Recent changes to ActionScript allow Flash Lite to better integrate with and even compete with device-layer technologies like Java ME and BREW. Flash Lite should not be considered a mobile operating system like Symbian OS, Windows Mobile, BlackBerry OS, iOS, Bada (Samsung) or Android: it is a technology for developing applications that run on a mobile operating system.

Flash Lite 1.1 supports Flash 4 ActionScript.

Flash Lite 2.0, based on Flash Player 7, supports Flash 7's newer ActionScript 2.0. Both Flash Lite 1.1 and 2.0 also support the World Wide Web Consortium's Standard SVG Tiny, a mobile profile of the consortium's Scalable Vector Graphics (SVG) recommendation. Unlike SVG, Flash Lite can add audio and interactive elements without the use of other technologies such as JavaScript. As with Flash, Flash Lite is able to read and redraw external XML content. Flash Lite 3 is based on Flash 8, which lessens the gap between mobile and desktop content by supporting H.264 video standard, as well as On2 VP6 and Sorenson video codecs.

Flash Lite 3 also introduces support for FLV video content (as used by YouTube and Google Video).

Flash Lite 4.0 will support ActionScript 3 and will be a browser plugin, rather than a standalone player.

History

In 2005 Adobe Systems completed its acquisition of Macromedia, the original developers of Flash. At that time, Flash Lite had been available to mobile users in Japan and Europe for some time prior to its availability in the United States. NTT DoCoMo was the first carriers to adopt Flash Lite in May 2003.

As a promotion for Flash Lite in February 2005, Macromedia conducted its first Mobile Flash Content Contest. From the over 150 applications submitted, nine winners were selected in areas of Best Business and Productivity Application, Most Innovative use of Flash Lite, Best Animation, Best Business Application, Best Educational Content, Best Game, Best Interactive Content, Best Productivity Application, and Best Overall Use of Flash Lite.

In May 2006, the iriver U10 (later re-branded as the iriver clix) was released, which supported Flash Lite content in a landscape page orientation. The U10 was the first digital audio player to support Flash Lite.

In 2005, almost 100% of Flash Lite enabled devices were found in Japan. In February 2007, Adobe claimed that over 70% of Flash Lite devices were shipped outside of Japan .

In October 2006, Verizon Wireless announced support for Flash Lite , making it the first operator in the USA to adopt the technology. Flash Lite was initially available on four handset models (Motorola RAZR V3c and V3m, Samsung SCH-a950 and LG The V (VX9800)) as a BREW extension. This allows users to download Flash Lite applications from Verizon's "Get It Now" service, but it does not allow users to view Flash objects from their web browser.

In February 2007, Adobe announced at the 3GSM World Congress in Barcelona that the next release of Flash Lite (version 3) would support video, including streaming video . In October 2007, Adobe announced the release of Flash Lite 3.

At Adobe's 2007 Financial Analyst Meeting, Al Ramadan, then senior vice-president of Adobe's Mobile and Voice Solutions Business Unit, announced that by December 2006, 220 million Flash Lite devices had been shipped. He also noted Adobe's acquisition of certain vector rendering technology by Actimagine, intended to reduce the Flash Lite player's memory footprint in future versions.

As of March 2008, neither Adobe nor Verizon Wireless have announced the availability of Adobe Flash Cast, per the February 2007 press release for availability by the end of calendar year 2007. In the same month, Steve Jobs described Flash Lite as "not capable of being used with the Web."

In September 2009, Opera Software integrated Flash Lite 3.1 in the Internet Channel application for the Wii gaming console.

In September 2010, John Gruber characterized Flash Lite as a "major effort to establish a mobile software platform" that "utterly failed".

Versions

• Macromedia Flash Lite 1.0
  • Based on Flash Player 4
• Macromedia Flash Lite 1.1
• Macromedia Flash Lite 2.0 (December 2005)
  • Released in 2005, which brought its capabilities in line with Flash Player 7.
• Adobe Flash Lite 2.1 (December 2006)
  • Running on the BREW platform
• Adobe Flash Lite 3 (Announced on February 2007)
  • Support for FLV transcoding
• Adobe Flash Lite 3.1 (February 2009)

• Adobe Flash Lite 4 has been released (2010) and integrated in Symbian^3 (Nokia N8, Nokia E7...)

Comparison to similar development platforms

Flash Lite is a mobile development platform that can either be used in place of Java ME or run on top of Java ME in a Flash Lite Player. Other platforms include BREW, Symbian and Windows Mobile. In 2006 Qualcomm announced a partnership with Adobe to bring the Flash Lite player to the BREW runtime.

Flash Lite content may be viewed on handsets installed with the Flash Lite player in the same way that Java content may be viewed on phones with a Java ME runtime. Both of these technologies may be present on the same handset and do not compete directly.

Applications, games and other content may be developed in either technology. Flash Lite has several advantages and several disadvantages when compared to Java ME.

Advantages:

• Rapid development due to the Adobe Flash IDE makes iterative software prototyping and software testing relatively easy.
• Better support for the Write once, run anywhere (WORA) methodology that does not depend on specific APIs being available. This results in little or no porting, which is a major cost in Java ME development.
• Graphics are vector based (bitmap support is also included) which allows for scaling, rotation and other transformations without loss of graphic quality.
• Ability to pack more animation and graphics into the same file size provided by the use of vector graphics.
• Ability to convert web-based (desktop) Flash content to mobile and vice versa, with minimal effort.
• Flash development skills—understanding of the IDE and of the scripting language—readily ports from the desktop IDE to the mobile development environment.

Disadvantages:

• As of October 2, 2008, only 361 phones offer support for Flash Lite. However this is changing rapidly in North America and Europe with carriers like Verizon and manufacturers like Nokia, Sony Ericsson and LG having announced Flash Lite devices in 2006 and 2007. Its limited availability means a limited audience compared with that of Java ME, Symbian or BREW.
• Relatively poor graphical performance (due to the more complex processing required for vector graphics).
• Poor handling of sound compared to other programs.

Project Capuchin

On April 30, 2008, Sony Ericsson announced Project Capuchin , a bridge that allows Flash Lite to run as a front-end to Java ME and in this way, combine Java's APIs and direct communication with the mobile phone's hardware (bluetooth, Wi-Fi and others) with Flash's graphical interface.

See also

• SWF file format, the files generated by the Flash application.

External links

• Official Flash Lite information
• Bill Perry - Flash Lite Evangelist for Asia, Japan and the Americas
• Mark Doherty - Flash Lite Evangelist for Europe, Middle East and Africa
• Adobe article on Developing Flash Lite for BREW applications for Verizon Wireless