AndroidStudio NDK開發配置CmakeLists文件

1 默認的 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 庫文件名字（.so）和c++文件路徑（可多個）
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.
#--------------依賴NDK中的庫
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.
#--------------關聯log庫到本地庫。如果你本地的庫（native-lib）想要調用log庫的方法，
#那麼就需要配置這個屬性
target_link_libraries( # Specifies the target library.
                       hello-lib

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

2簡化去除註釋 之後的CmakeLists

#----------------指定 庫文件名字（.so）和c++文件路徑（可多個）
add_library( 
             hello-lib

             
             SHARED

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

#--------------依賴NDK中的庫
find_library( 
              log-lib

              log )

#--------------關聯log庫到本地庫。如果你本地的庫（native-lib）想要調用log庫的方法，
#那麼就需要配置這個屬性
target_link_libraries(
                       hello-lib

                       ${log-lib} )

3關於生成的library文件

一個CmakeLists 對應 一個或多個庫文件

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
             )

配置方式2：

把所有的 cpp目錄下的  .cpp文件 導入

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

             SHARED

          
            ${SRC_LIST}
             )

如果項目中有 多個library需要 另行配置

可 參考這篇文章