(The course is mainly aimed at students who have just entered or are about to enter the industry, helping them quickly become familiar with some commonly used third-party libraries and meet some necessary conditions for entry. The video is a real record of the classroom, mainly including the network request frame, image loading frame, and pull-down refresh frame. , Speech recognition, height map, face recognition, happy chat, Aliyun live broadcast, Jiguang news push, Alipay payment, data analysis and other necessary knowledge bases.)