(I don't know how to ask for so many beans. Isn't that my intention? Now I can't change the beans. Besides, I haven't seen my own beans increase because of this file. Android is a software set specially used for mobile devices, which includes an operating system, middleware and some important user programs. The beta version of the Android SDK provides tools and API interfaces necessary for the use and development of Android using the JaVa language on the Android platform.? Use the program framework to support the reuse and replacement of components? Dalvik virtual machine optimized for mobile devices? The integrated browser is based on the open source WebKit engine? The optimized graphics library includes a customized 2D graphics library. The 3D graphics library is based on OpenGLES 1.0 (hardware acceleration/acceleration optional)? SQLite as a framed data store? Multimedia support includes common audio, video and still image formats (such as MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, GIF)? GSM telephony technology (hardware dependent)? Bluetooth, EDGE, 3G, and WiFi (hardware dependent)? Camera, GPS, compass, and accelerometer (hardware dependent)? Rich development environment includes device emulators, debugging tools, memory and function analysis charts, and Eclipse integrated development environment plug-ins
Chinese Android Help Document.pdf)