Android Module配置C++支持

AndroidStudio提供了创建项目时选择C++支持的模板,但是新建Module的时候并没有C++模板,

要如何配置Module的C++支持呢? 虽然Module没有提供C++模板,但是我们可以手动配置C++支持.

首先新建 Android Library

然后在 src/main/新建cpp文件夹,之后在cpp文件夹新建一个 main.cpp 的C/C++ Source File文件.

再新建一个CMakeLists.txt文件,复制下面的内容到CMakeLists.txt文件.

一个更简单的方法,先去建一个支持C++的项目,然后将cpp文件夹直接拷贝到src/main目录下.

# 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.

add_library( # Sets the name of the library.

main  #新建的C/C++ Source File文件的名称

# Sets the library as a shared library.

SHARED

# Provides a relative path to your source file(s).

#main.cpp源文件

main.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.

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.

target_link_libraries( # Specifies the target library.

main

# Links the target library to the log library

                       # included in the NDK.

${log-lib} )

去模块的 build.gradle中添加下面的配置

android{

    defaultConfig{

	...

	...

	externalNativeBuild {

    	    cmake {

                cppFlags ""

    	    }

	}

    }

}

android{

   ...

   ...

   externalNativeBuild {

      cmake {

	path "src/main/cpp/CMakeLists.txt"

	version "3.10.2"

      }

   }

}

生成的aar可以拷贝到别的项目中使用(需要配置NDK,不然会报错)

巴特西

Android Module配置C++支持

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