文档介绍：The development and application of Android
Introduction
Android
Android (pronounced: [the 'ændrɔid]) is a Linux-based open source operating system, mainly used in portable devices. Handheld device Union developed and led by Google and open. There is no unified Chinese name, "Andrews" and "security caused by" is another name popular in mainland China.
Android operating system was originally founded by Andy Rubin (Andy Rubin), primarily support the phone. August 17, 2005 Google Inc. (Google) acquisition of a capital injection. November 5, 2007, Google Inc. and 84 hardware manufacturers, software developers and posed of the open handheld device Alliance (Open Handset Alliance) to jointly develop improved Android operating system and the production of smart phones equipped with Android, and gradually extended to the Tablet PC and other areas. Subsequently, the Android has access to the Apache open source license, Google has released its source code. At the same time, the one responsible for the further development and maintenance of the Android operating system Android Open Source Project also been established (AOSP).
Android kernel based on Linux, in addition to outside the kernel, the middle tier, database metadata, and the C / C + + to write the API and application framework. Android applications that usually Java database prepared on the basis, run the program, the application code will be immediately transformed into the Dalvik dex-code (the Dalvik the Executable), then the Android operating system through the use of-pilation of the Dalvik virtual machine to operation.
In addition to the open handheld device Alliance, Android also has many of the open munity of developers from around the world responsible for developing Android applications and third-party Android operating system to extend and expand the functionality and performance of the Android. As of October 2011, with over 300,000 certified application on the Android market, the e-market applicatio