Android下Native的so编译：使用cmakelists.txt

android studio的CMakeLists.txt写好后，在Studio中编译没问题，在命令编译时则需要配置很多参数才能成功

示例CMakeLists.txt文件：

cmake_minimum_required(VERSION 3.4.1)

set(UVC_LIBS UVCCamera uvc usb100 jpeg-turbo1500)
FOREACH(UVC_LIB ${UVC_LIBS})
    add_library(${UVC_LIB} SHARED IMPORTED)
    set_target_properties(${UVC_LIB} PROPERTIES IMPORTED_LOCATION
        ${CMAKE_CURRENT_SOURCE_DIR}/lib/${ANDROID_ABI}/lib${UVC_LIB}.so)
ENDFOREACH(UVC_LIB)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DFFFFFFF_DETECTOR_EXPORT -std=c++11")

add_library(XXXXX SHARED
            ${CMAKE_CURRENT_SOURCE_DIR}/src/BBBB/XDFD.cpp
            ${CMAKE_CURRENT_SOURCE_DIR}/src/BBBB/DFDSF.cpp 
            ${CMAKE_CURRENT_SOURCE_DIR}/src/BBBB/base64/CBase64.cpp 
            ${CMAKE_CURRENT_SOURCE_DIR}/src/BBBB/camera/AAAA.cpp )

target_include_directories(XXXXX PRIVATE
                           ${CMAKE_CURRENT_SOURCE_DIR}/inc
                           ${CMAKE_CURRENT_SOURCE_DIR}/src/XXX)

target_link_libraries(SL3DCameraCtrl
                      ${UVC_LIBS}
                      android
                      log)

由于使用了STL，整个CMAKE执行的命令行写成如下：

D:\10.AndroidSDK\cmake\3.10.2.4988404\bin\cmake.exe -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="%ANDROID_NDK%\build\cmake\android.toolchain.cmake" ..\..\ -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe" -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-21 -DANDROID_STL=c++_static

用于编译的批处理文件如下：

set ANDROID_NDK=D:\10.AndroidSDK\ndk\android-ndk-r15b
 
mkdir build\arm64-v8a
cd    build\arm64-v8a

D:\10.AndroidSDK\cmake\3.10.2.4988404\bin\cmake.exe -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="%ANDROID_NDK%\build\cmake\android.toolchain.cmake" ..\..\ -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe" -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-21 -DANDROID_STL=c++_static
D:\10.AndroidSDK\cmake\3.10.2.4988404\bin\cmake.exe --build .
cd ..\..\