Design And Implementation Of Instant Messaging System Based On Android

In the era of knowledge economy, information technology has gradually penetrated into all fields of society and economy, and has become an increasingly important productivity. With the rapid development of information technology, wireless mobile networks and smart phone operating system, also get a rapid and substantial development, wireless mobile networks and smart phone operating system, get a rapid and substantial development, and various instant messaging software which are based on wireless Internet have sprung up like mushrooms. In this context, people’s communication, the way of communication has been greatly changed. At present, as a convenient and fast way of communication, instant messaging have been integrated into people’s life, work, and play a more and more important role in various fields.In the campus network, building network and other wireless LAN, people are no longer satisfied with the file and picture transmission, and expect a better instant messaging system to meet the needs of people in real time. Because of fast speed, high bandwidth and high quality, the wireless LAN has the advantages of developing instant communication in WLAN.According to the characteristics of wireless local area network, based on the principle of software engineering, the paper analyzes the principle of XMPP protocol and RTP/RTCP protocol, the software architecture, MVC development mode of C/S cooperation, and in this paper, the design and implementation of the instant messaging system,which is based on the Android system, is designed and implemented. Firstly, the paper analyzes the functional and non functional requirements of the system, proposes the design ideas of the system, then, analyzes the design of each functional module. At last, according to the system, it points out the deficiency of the system and the prospect of application.