(Introduction and Practice of Android Development covers most scenarios of Android development, from basic introduction of Android, environment construction, SDK introduction, market use, to use analysis, component introduction, example demonstration, etc. In terms of technical implementation, it explains the complete comprehensive examples and source code analysis under five Android platforms, namely RSS reader, personal GPS based on Google Map, Douban (Web2.0) client, online music player and mobile information detection helper. Introduction and Practice of Android Development focuses on the guidance of practical ability. In compliance with the strictness of the technical development knowledge system, it provides detailed screenshots of the development situation in the links where errors are simply generated and difficult to understand, and presents important knowledge points and development skills to readers in the vivid mode of "small experiments", "small tips", "small knowledge", "attention", etc. In the explanation of program examples, the examples are mainly inserted in the essence knowledge chapter of Android development, which provides a good guide for beginners to combine learning with practice. Introduction and Practice of Android Development is equipped with a 400 minute project development video disc to guide readers to learn Android practical development technology quickly and without obstacles. Introduction and Practice of Android Development is suitable for programmers who have certain software development experience and want to quickly enter the field of Android development; A book for developers and Android development enthusiasts with some experience in mobile phone development; It is also suitable for Android training materials on relevant training campuses.)