(Lecturer: The word Android is synonymous with "robot". Together, it is also the name of the open-source mobile operating system based on the Linux platform announced by Google on November 5, 2007. The platform is composed of operating system, middleware, user interface and use software. It is said to be the first truly open and complete mobile software for mobile terminals. Now Android 3.0. This series of videos mainly explains the software development of the Android platform. A set of tutorials recorded during break time will continue to be updated. I hope this video can achieve the following effects: 1. Make me better understand all knowledge points of Android 2. Improve my language expression ability 3. Lead more friends into the Android world This material includes the following attachments:)