City information construction is an important part to construct a"smart city". According to the design demand, by using the method ofAndroid application development platform, city information application platform and the design and implementation of a service in Tangshan, while the development of the real time communication between functional modules independent support client.%城市移动信息化建设是构建“智慧城市”的重要组成部分。本文针对城市移动门户-“掌上唐山”的设计需求,运用Android平台应用开发的方法,研究并设计实现一个服务于唐山的城市信息化应用平台,同时开发了独立的支持客户端之间实时通信的功能模块。
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