win7下，android开发环境搭建全流程，JDK,SDK,NDK,CYGWIN-under win7, the android development environment to build the whole process, JDK, the SDK, NDK is the CYGWIN

NDK(Android)环境搭建。帮助构建NDK编程环境，支持Android下的JAVA和C++混合编程。-NDK (Android) environment to build. NDK programming environment, help build support under Android of JAVA and C++ mixed programming.

android C的环境搭建，NDK的配置。在java层通过JNI访问下层C。-android C environment to build, NDK configuration. In java layer to access the underlying C through JNI.