The Design And Implementation Of Campus Trading Platform Based On IOS Platform

In recent years,with the rise of mobile Internet and electronic commerce economy,a variety of mobile application related to electronic commerce occur.They are greatly convenient for People's Daily life,and college students' consumption idea and level has been greatly improved.Due to reasons such as impulse spending,part of the college students have more and more not-used items,and the other part of the college students hope to cheaper prices for second-hand goods to meet their demand,and the traditional flea market is no longer meet their needs,build a second-hand mobile trading platform is of great practical value,therefore,build a second-hand mobile trading platforms have practical value very much.The purpose of this paper is to design and implement a campus trading information platform system based on iOS mobile platform,in view of the college students group,provide a second-hand goods information sharing platform,tend to human-computer interaction,all activities,user experience,covers commodity exhibition,classification,details,search,review,and users management,etc.A recommendation algorithm is provided based on the definition of user similarity and commodity relevancy.The details are as follows:(1)To collect and investigate the relevant data and analysis of second-hand transactions on campus,and fully understand the present situation and development trend of second-hand trading in schools;(2)To learn iOS development and related technology,including iOS development tools used XCode and related debugging tools,the overall framework of the iOS platform,the objective-C programming language,the iOS memory management mechanism,the MVC design pattern and image caching strategies and SDWeblmage library,etc.,(3)To analysis the users behavior for a specific campus users,then design and complete the related module of demand analysis,di'vides the client's overall function structure,describes the function of the need to implement,including the release of goods/mood,screening,share of basic functions,news feeds,anonymous Posting mood,etc.;(4)To design completed client profile design and detailed design,using the MVC architecture,design the frame structure of the system overall,according to the function is divided into commodity/mood management,comments management,user management,system management module,etc.At the same time,the data model and interface of the functional modules are described.(5)On the basis of the detailed design to realize each function module,and need some techniques of system implementation,including network communication between client and server,the iOS data storage,log in and request encryption and verification,news feeds,commodity recommendation model.This system not only meet the demand of most of the students of secondary trading platform,full use of the let items,also reflected the resources reasonable use,conforms to the economical and environmental consumption idea,also advance of the information construction of colleges and universities have a certain role.