Question

我安装了android studio 2.3和NDK＆amp;其他必备的东西。我下载android OpenCV库然后我使用这个视频https://www.youtube.com/watch?v=69keQjztg6o在android studio项目中添加OpenCV java库。现在我想添加和使用原生OpenCV库，但我不知道怎么做以及我应该在CMakeLists.txt和build.gradle（app）中编写什么代码？请指导我。

这是我的CMakeLists.txt：

cmake_minimum_required(VERSION 3.4.1)
   set(EXECUTABLE_OUTPUT_PATH      
"${CMAKE_CURRENT_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}")
add_library(
             native-lib

             SHARED

             src/main/cpp/native-lib.cpp )
add_library(
         nonfree
         SHARED
         IMPORTED )
set_target_properties(
                     nonfree
                      PROPERTIES IMPORTED_LOCATION

${CMAKE_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libnonfree.so )

include_directories(C:/dev/sdk/OpenCV-android-sdk/sdk/native/jni/include)

add_library( lib-opencv SHARED IMPORTED )

set_target_properties(lib-opencv PROPERTIES IMPORTED_LOCATION  
${CMAKE_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libopencv_java3.so)
set_target_properties(nonfree PROPERTIES IMPORTED_LOCATION  
${CMAKE_SOURCE_DIR}/src/main/jniLibs/${ANDROID_ABI}/libnonfree.so)

find_library(
              log-lib

              log )
target_link_libraries(
                       native-lib
                       nonfree
                       lib-opencv
                       ${log-lib} )

这是我的build.gradle：

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "hoseini.seyedali.myapplication"
    minSdkVersion 16
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner 
"android.support.test.runner.AndroidJUnitRunner"
    externalNativeBuild {
        cmake {
            cppFlags ""
        }
    }
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 
'proguard-rules.pro'
    }
}
externalNativeBuild {
    cmake {
        path "CMakeLists.txt"
    }
}

}

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', 
{
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
compile project(':openCVLibrary320')

}

这是错误：

Error:error: linker command failed with exit code 1 (use -v to see 
invocation)

在Android studio 2.2或2.3

0 个答案: