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):
build.gradle配置
针对app模块的build.gradle进行如下配置:
//改为library apply 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 2018 ndk.dir=D\:\\NanRi\\Android\\android-ndk-r16b sdk.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 )
导出AAR
导出的AAR所在路径为“app\build\outputs\aar\app-debug.aar”
可以将app-debug.aar改为app-debug.zip,使用压缩工具打开,可以看到如下:
打开jni文件夹,可以看到里面包含了一个armeabi-v7a文件夹,该文件夹包含了libnative-lib.so库
原文地址:https://www.cnblogs.com/wuchaodzxx/p/9046370.html
时间: 2024-07-29 22:44:42