(This book takes the development of Android mobile phone application as the theme, and integrates mobile phones, networks, services and other development fields in depth through more than 130 models, providing great help for readers to improve their program design skills The book is divided into 10 chapters, which mainly describes the knowledge points of Android in the way of exemplar collection. It specifically introduces the development of Android human-computer interaction interface, commonly used development controls of Android, communication services such as sending and receiving messages using Android phones, the development of automatic service functions and entertainment multimedia functions of Android phones, and the integration of powerful network services of Android and Aoogle. The CD accompanying the book includes all the exemplary program codes This book is from simple to deep. From the basic knowledge of Android to practical development and use, the framework is clear and the language is simple. It is very suitable for Android beginners and advanced program developers to read.)