The Design And Implementation Of Intelligent Terminal Information Security System Based On Android

With the rapid development of mobile internet and the continuous improvement of hardware development,smart phone has become an indispensable part of people's lives.While enjoying the convenience of internet services,users will also be threat-ened by information security from the screen.These threats not only come from ex-ternal information harassment and malware or viruses,but also from privacy leakage and hardware aging in smartphone devices.How to effectively prevent these security risks which affect the experience of users has become an urgent need.Therefore,the intelligent terminal information security system from this thesis is designed to meet those demands.The system is developed based on Google Android Pie,using the Android frame-work layer in Xiao Mi which is used for interaction between Android application layer and bottom hardware layer.The system uses MVP development mode as a whole.Ac-tivity,one of the core components of Android,is responsible for the initialization of the view display layer and a few logical operations.Service undertakes most of the time-consuming logical processing operations of the operation layer.The data stor-age and data processing of the system mainly uses the Android lightweight database that is SQLiteDatebase,plusing ContentProvider which is another core component of Android.Robotium,an automated testing framework,and Jenkins,a continuous inte-gration tool,are also used as assistants in the development phase.Intelligent terminal information security system mainly includes five modules:in-formation harassment interception module,virus scanning processing module,network assistant module,application management module and power management module.In this thesis,detailed requirement analysis and module design class diagrams are given for these five modules,and in the implementation part,the flow chart and key code fragments of key functions are elaborated.The design and implementation of the five functional modules provides users with a stable and usable intelligent terminal infor-mation security system,which effectively reduces the hidden danger of terminal users being threatened by potential unsafe factors.This system belongs to a part of MIUI system in development edition.At present,it has been used by MIUI users through regular ROM packaging.And the system has stable performance and good user feed-back.