AndroidStudio NDK开发配置CmakeLists文件

1 默认的 CmakeLists

# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html 
# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.4.1)

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.
#----------------指定 库文件名字（.so）和c++文件路径（可多个）
add_library( # Sets the name of the library.
hello-lib

# Sets the library as a shared library.
SHARED

# Provides a relative path to your source file(s).
src/main/cpp/hello-lib.cpp}
)

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
#--------------依赖NDK中的库
find_library( # Sets the name of the path variable.
log-lib

# Specifies the name of the NDK library that
# you want CMake to locate.
log )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
#--------------关联log库到本地库。如果你本地的库（native-lib）想要调用log库的方法，
#那么就需要配置这个属性
target_link_libraries( # Specifies the target library.
hello-lib

# Links the target library to the log library
# included in the NDK.
${log-lib} )

2简化去除注释 之后的CmakeLists

#----------------指定 库文件名字（.so）和c++文件路径（可多个）
add_library(
hello-lib

SHARED

src/main/cpp/hello-lib.cpp}
)

#--------------依赖NDK中的库
find_library(
log-lib

log )

#--------------关联log库到本地库。如果你本地的库（native-lib）想要调用log库的方法，
#那么就需要配置这个属性
target_link_libraries(
hello-lib

${log-lib} )

3关于生成的library文件

一个CmakeLists 对应 一个或多个库文件

配置方式1：

add_library( # Sets the name of the library.
hello-lib

SHARED

src/main/cpp/hello-lib.cpp
src/main/cpp/test.cpp
)

aux_source_directory(src/main/cpp SRC_LIST)
add_library(
hello-lib

SHARED

${SRC_LIST}
)

如果项目中有 多个library需要 另行配置