从3.6升级到Android 4.0后，使用NDK支持构建项目时出错

Question

将Android Studio更新为4.0项目后，构建完成并出现错误

[与操作系统无关的路径'lib / armeabi-v7a / libdlib.so'找到了多个文件。如果您正在使用jniLib和CMake导入目标，请参见https://developer.android.com/studio/preview/features#automatic_packaging_of_prebuilt_dependencies_used_by_cmake

该链接指向具有Android Studio Preview中的新功能为4.1]的页面>

编辑

实际上，您可以找到Google缓存中链接的信息：Automatic packaging of prebuilt dependencies used by CMake这里所说的是：

Android Gradle插件的早期版本要求您使用jniLibs显式打包CMake外部本机版本使用的所有预编译库。使用Android Gradle Plugin 4.0时，不再需要上述配置，并且会导致构建失败：

但对我而言并非如此

这里是build.gradle

apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
android {
compileSdkVersion 29
buildToolsVersion "29.0.2"


defaultConfig {
    minSdkVersion 21
    targetSdkVersion 29
    versionCode 1
    versionName "1.0"

    externalNativeBuild {
        cmake {
            cFlags "-O3"
            cppFlags "-std=c++11 -frtti -fexceptions -mfpu=neon"
            arguments "-DANDROID_PLATFORM=android-16",
                    "-DANDROID_TOOLCHAIN=clang",
                    "-DANDROID_STL=c++_shared",
                    "-DANDROID_ARM_NEON=TRUE",
                    "-DANDROID_CPP_FEATURES=rtti exceptions"
        }
    }
}

buildTypes {
    debug {}
    stage {
        debuggable true
        minifyEnabled false
    }

    release {
        minifyEnabled false
    }
}

kotlinOptions {
    jvmTarget = "1.8"
}

externalNativeBuild {
    cmake {
        path "src/main/cpp/CMakeLists.txt"
        version "3.10.2"
    }
}

packagingOptions {
    pickFirst "**/libc++_shared.so"
    pickFirst "**/libdlib.so"
}

}

dependencies {
   implementation fileTree(dir: 'libs', include: ['*.jar'])

   implementation 'androidx.annotation:annotation:1.1.0'
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
}
和CMakeLists.txt

set(LIB_DIR ${CMAKE_SOURCE_DIR}/src/main/jniLibs)

#
cmake_minimum_required(VERSION 3.4.1)

add_library(dlib SHARED IMPORTED)

# sets the location of the prebuilt dlib .so
set_target_properties( dlib
        PROPERTIES IMPORTED_LOCATION
        ${CMAKE_SOURCE_DIR}/../jniLibs/${ANDROID_ABI}/libdlib.so )

# ------------------------------------------------------------------

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

        # Sets the library as a shared library.
        SHARED

        # Provides a relative path to your source file(s).
        face-lib.cpp)

target_include_directories(
        face-lib PRIVATE
        ${CMAKE_SOURCE_DIR}/include
)

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)


target_link_libraries( # Specifies the target library.
        face-lib

        dlib

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

将Android Studio更新为4.0后，项目构建完成并出现错误，并发现多个文件与OS无关，路径为'lib / armeabi-v7a / libdlib.so'。如果您正在使用jniLibs和CMake ...

Answer 1

好，所以我找到了解决方案，已将其与本机库一起添加到模块中：