Design And Implementation Of Instant Messaging System Based On Android Mobile Platform

With the rapid development of mobile communications, as well as the popularity of theInternet to mobile terminal,people become more and more dependent on the exchange ofreal-time information,and with the constant popularity of mobile terminal as well as thecontinuous performance and functionality improvement,the requirements of mobile terminalsare getting higher.Instant messaging which is based on applications technology of Internetprotocol, can enable users who use different devices to communicat,and its most basic form ofapplication is the text chat. Currently the major instant messaging software communicationprotocols used are not unified.In recent years, the Android system,which is based on theopen-source Linux mobile operating system platform system, has been widely used becauseof its open source and easy to develop.XMPP is a XML-based open-source instant messagingprotocol,the contents of which is an open,and it inherits the characteristics of XML.so androidand XMPP-based instant messaging systems have good application prospect.This paper, Comparing the characteristics and architecture of Android with other mobileoperating systems in detail, it is considered that the Android has an obvious advantage.Secondly, the overall framework of the system, the design of server and client are given.Specially, the server uses the open-source Openfire as a system of instant messaging platformThirdly, it gives a detailed analysis on the XMPP communication protocol, and also theanalysis, design, implementation of each module of client are given. Finally, the systemdeployment and testing are given.After testing of the application prove that the functions of the systemic userresgistration,user login,friends list of acquisition,send and receive messages and voicerecording modules are able to run,the overall function of the system basically satisfy theexpectation of the design.