android camera 架构

实现Camera功能的相关模块为：1.android_cupcake/packages/apps/Camera/src/com/android/camera此部分内容被编译为Camera.apkandroid_cupcake/framework/base/core/java/android/hardware/Camera.javaandroid_cupcake/framework/base/core/jni/android_hardware_Camera.cpp此部分内容被编译为libandroid_runtime.so中的一部分。2.frameworks/base/include/ui/目录中Camera相关的头文