OpenCV-原生Android集成

Question

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
OPENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
include C:/Users/Piotr/Desktop/Android_App/MyApplication/libraries/opencv/native/jni/OpenCV.mk
LOCAL_SRC_FILES  := DetectionAndRecognition.cpp
LOCAL_C_INCLUDES := C:/Users/Piotr/Desktop/Android_App/MyApplication/libraries/opencv/native/jni/include
LOCAL_LDLIBS     += -llog -ldl

LOCAL_MODULE     := detection_and_recognition_lib

include $(BUILD_SHARED_LIBRARY)

问题是，如果我尝试编译项目，Android Studio会说：

错误：（2,33）opencv2/core/core.hpp：没有这样的文件或目录

为什么是？

Answer 1

这也困扰着我，尝试添加以下内容：

// begin
sourceSets.main {
    jni.srcDirs = [] //disable automatic ndk-build call
}
task ndkBuild(type: Exec, description: 'Compile JNI source via NDK') {
    commandLine "/your-library-folder/Android/sdk/ndk-bundle/ndk-build",
            'NDK_PROJECT_PATH=build/intermediates/ndk',
            'NDK_LIBS_OUT=src/main/jniLibs',
            'APP_BUILD_SCRIPT=src/main/jni/Android.mk',
            'NDK_APPLICATION_MK=src/main/jni/Application.mk'
}
tasks.withType(JavaCompile) {
    compileTask -> compileTask.dependsOn ndkBuild
}
//end

进入您的构建。gradle在您的Android Studio项目的app文件夹中

参考:https://github.com/quanhua92/ndk_opencv_androidstudio