When teachers apply, the remote inf

When teachers apply, the remote information of students obtained from the network micro database is stored in the list, and the list is stored in the micro database. After the application is opened, the data will be directly obtained from the micro database and displayed in the list display box. In order to prevent the data loss after the teacher closes the application, it is necessary to obtain the data again. You should make another judgment when displaying the students' location information. If a student's distance value is within a certain range and the time is within a certain period of time, it is determined that he is in class, otherwise it is determined that he is absent from class. Teachers need to continue to improve the application, such as adding a function to export students' historical data to a file, so that teachers can check and count students' attendance.At present, the development phase of the application has been basically completed, and is in the application testing phase. In the testing phase, we focus on collecting user feedback, adjusting and improving the code. At the same time, how to solve the user experience, database storage constraints and other issues will be the focus of the next stage of research.