(Video introduction: This set of videos has 67 episodes, which is the number of courses in the first eight days of 3G Android employment class. What you get now is the video courses in the first six days, and the video courses in the next two days need to participate in the mobile talent acquisition (or) held by everyone. This video tutorial was carefully recorded by Li Huoming at the end of 2011 from the beginning of the original Android core basic course)