The Smart Phone-based The Sqlite Media Query Function Realization

With the development of information and science technology, the handset is gradually from simple communication equipment toward the smart mobile terminal. Compared with the traditional handset, the smart phone supplies rich functions, such as multimedia, personal information management, wireless-based browser and E-mail, to the end user except call function. As the amount of media data supported by the handset quickly grow, the need for effective media data management emerges as a competitive necessity. Targeted at solving this problem, a kind of method is presented in the paper. It is using SQlite which is an embedded database to manage media data effectively, at the same time, Media Finder designed and implemented in this paper provides services for the applications to manage and navigate media data. At the beginning, the paper introduces the structure of the platform and OS Mobilinux of the smart phone, SQLite is chosen as Media Finder's database considering characteristics of the smart phone. The design and implementation of Media Finder is the most importance work in this paper. In the architecture, Media Finder can be divided into engine layer, service layer and application layer, and detailed design and development of the critical modules, IPC communication mechanism between modules and the message structure are also presented in the paper.