(When the mobile news client is running, it can obtain the corresponding news information from the news server, and display it in the news client in the form of a list. Select any item in the list to open the news details and detect the news content. The course mainly introduces the development of the mobile news client running on the Android platform. In the development process, the UI design technology used by Android, the use of multiple controls and views, the asynchronous UI update multithreading, HTTP communication technology, JSON data parsing and other technologies are mainly used.)