Design and implementation of a second-hand items trading platform based on Android

With the continuous improvement of 4G communication technologies and the popularity of smart mobile devices, the mobile Internet quickly involves into the people's life and work, and more and more users are accustomed to using mobile phones, tablet PCs and other mobile devices for shopping and consumption. But these goods purchased online will result in the problem of idle items at home. Therefore, in order to achieve convenient, fast transaction of second-hand items, a second-hand items electronic trading platform based on the Android platform was developed in the paper. In the process of constructing the platform, functional requirements of the system were analyzed. The MVP architectural pattern was utilized to design the system structure, and finally the software of second-hand items trading platform was implemented. The system has the characteristics of better maintainability and oriented programming interface.