Android Studio 打包AAR和第三方静态库

# 移动开发 2024-05-05 14:16 0 27 来源：云博客

需求

现在有一个第三方库libstatic_add.a和对应的头文件static.h，要求封装一个Module，该Module依赖这个静态库，要求打包的Module包含该静态库。

方案

创建Android Studio Library Project

创建Project时，记得添加"Include C++ Support"，如果没有安装CMake，LLDB和NDK的话，记得安装一下。

项目创建好后，包括以下目录和文件（部分目录或文件是后面添加的）：

技术分享图片

build.gradle配置

针对app模块的build.gradle进行如下配置：

//改为libraryapply plugin: ‘com.android.library‘//读取local.properties里的配置属性add_static_lib.dir，该属性指明libstatic_add.a静态库所在目录Properties properties = new Properties()properties.load(project.rootProject.file(‘local.properties‘).newDataInputStream())def add_static_lib = properties.getProperty(‘add_static_lib.dir‘)android { compileSdkVersion 27 defaultConfig { minSdkVersion 16 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" //添加下面 ndk { abiFilters ‘armeabi-v7a‘ // these platforms cover 99% percent of all Android devices } externalNativeBuild { cmake { //添加下面 arguments ‘-DANDROID_PLATFORM=android-14‘, ‘-DANDROID_TOOLCHAIN=clang‘, ‘-DANDROID_ARM_NEON=TRUE‘, ‘-DANDROID_STL=gnustl_static‘, "-DPATH_TO_ADD_STATIC_LIB:STRING=${add_static_lib}" cFlags ‘-O3‘, ‘-fsigned-char‘ // full optimization, char data type is signed cppFlags ‘-fsigned-char‘, "-I${add_static_lib}" } } } //添加下面 sourceSets { main { jniLibs.srcDirs = [‘src/main/cpp‘] } } //添加下面 externalNativeBuild { cmake { path ‘src/main/cpp/CMakeLists.txt‘ } } //添加下面 sourceSets.main { jni.srcDirs = [] jniLibs.srcDir ‘src/main/libs‘ } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile(‘proguard-android.txt‘), ‘proguard-rules.pro‘ } }}dependencies { implementation fileTree(dir: ‘libs‘, include: [‘*.jar‘]) implementation ‘com.android.support:appcompat-v7:27.1.1‘ implementation ‘com.android.support.constraint:constraint-layout:1.1.0‘ implementation ‘com.android.support:design:27.1.1‘ testImplementation ‘junit:junit:4.12‘ androidTestImplementation ‘com.android.support.test:runner:1.0.2‘ androidTestImplementation ‘com.android.support.test.espresso:espresso-core:3.0.2‘}

local.properties配置

针对app模块的local.propertise进行如下配置：

## This file must *NOT* be checked into Version Control Systems,# as it contains information specific to your local configuration.## Location of the SDK. This is only used by Gradle.# For customization when using a Version Control System, please read the# header note.#Wed May 16 13:05:05 CST 2018ndk.dir=D\:\\NanRi\\Android\\android-ndk-r16bsdk.dir=C\:\\Users\\suning\\AppData\\Local\\Android\\Sdk//添加如下，指明libstatic_add.a静态库所在目录

add_static_lib.dir=D\:\\NanRi\\Android\\Android-Studio-Project\\ModuleProject\\app\\src\\main\\libs\\

CMakeLists.txt配置

针对app模块下的src\main\cpp\CMakeLists.txt配置如下：

cmake_minimum_required(VERSION 3.4.1)set( PATH_TO_ADD_STATIC_LIB CACHE STRING "")message(${ANDROID_ABI})file(GLOB CPP_FILES "*.cpp")add_library( native-lib SHARED ${CPP_FILES})include_directories(src/main/cpp)include_directories(${PATH_TO_ADD_STATIC_LIB})target_link_libraries( native-lib android OpenSLES ${PATH_TO_ADD_STATIC_LIB}/libstatic_add.a)