(-Chinese translation excerpts, only Chapter 1, 4 and 7- Classic Introduction to Android 4 Programming - Developing Smart Phones and Tablets for Use [US] Wei MengLee's book translated by He Chenguang and Li Honggang is an introduction to the application development based on Android 4 mobile operating system. The author Wei MengLee has rich practical experience in project development and training of mobile operating system platform. He adopted the method of step by step guidance with rich pictures and texts and strong chirality to lead the outsider into the Android world. At the same time, he also showed them a broader vision, avoiding the defect that beginners often have, that is, they can't see the forest for only seeing the trees. This book starts with the development of Android. Through a simple introduction to the important concepts, it uses many examples to synthesize the composition, playing mode and operating principle of the Android application, and constructs a more complete Android development blueprint for readers. On this basis, the introduction of some advanced components and functions is introduced to clarify the direction for readers to further practice and develop high-value use, supplemented by exercises after each chapter. In addition to stabilizing the knowledge learned by the readers, the colloquial expression method throughout the book also narrows the gap between the book and the readers. Compared with the latest version, the Android 4.0 platform system used in this book has a new system unlocking interface, and the small plug-ins have also been redesigned. The most special thing is that the command manager of the system can display the thumbnail of the program, so that users can accurately and quickly close useless programs. In general, the new version has a consistent UI framework, exchange and sharing capabilities, new connection types, new input methods and text services, and enhanced media management capabilities. In particular, it has done a lot of work in the use of programs and content security. To a certain extent, it complements the common shortcomings of open source platforms, and will bring users a new experience. This is undoubtedly the key for developers to overturn the use of new designs. Of course, for beginners, the system framework and principle of Android itself have not been introduced too much. Readers who want to have a deeper understanding of this can visit the Android community and massive Internet related resources.)
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