OpenCV4Android分级链路误差-实验:0.6.0-Beta5

Question

我正在尝试使用gradle-实验性:0.6.0-Beta5构建一个带有OpenCV 3.0.0的本机应用程序，我的Android版本是v2.1预览1。

Android Studio linking OpenCV static libraries

和

Building native openCV with NDK on android studio

为了声明我将在build.gradle文件中使用的静态库，我已经将第三方库复制到/src/main/jniLibs/armeabi/3 3rdparty/

def openCVAndroidLibDir = file(project(':app').projectDir).absolutePath + "/src/main/jniLibs"
def openCVAndroidSdkDir = "/home/jxsun/OpenCV-android-sdk/sdk/native/jni/include/opencv2"

model {
repositories {
    prebuilt(org.gradle.nativeplatform.PrebuiltLibraries) {
        libtiff {
            binaries.withType(StaticLibraryBinary) {
                staticLibraryFile = file("${openCVAndroidLibDir}/${targetPlatform.getName()}/3rdparty/liblibtiff.a")
            }
        }
        ...
        tbb {
            binaries.withType(StaticLibraryBinary) {
                staticLibraryFile = file("${openCVAndroidLibDir}/${targetPlatform.getName()}/3rdparty/libtbb.a")
            }
        }

        opencv_hal {
            headers.srcDir "${openCVAndroidSdkDir}"
            binaries.withType(StaticLibraryBinary) {
                staticLibraryFile = file("${openCVAndroidLibDir}/${targetPlatform.getName()}/libopencv_hal.a")
            }
        }
        opencv_core {
            headers.srcDir "${openCVAndroidSdkDir}"
            binaries.withType(StaticLibraryBinary) {
                staticLibraryFile = file("${openCVAndroidLibDir}/${targetPlatform.getName()}/libopencv_core.a")
            }
        }
        ...
        opencv_videostab {
            headers.srcDir "${openCVAndroidSdkDir}"
            binaries.withType(StaticLibraryBinary) {
                staticLibraryFile = file("${openCVAndroidLibDir}/${targetPlatform.getName()}/libopencv_videostab.a")
            }
        }
    }
}

android.sources {
    main {
        jni {
            dependencies {
                library "IlmImf" linkage "static"
                ...
                library "tbb" linkage "static"

                library "opencv_core" linkage "static"
                ...
                library "opencv_videostab" linkage "static"
                library "opencv_hal" linkage "static"
            }
        }
    }
}

android.ndk {
    moduleName = "test"
    cppFlags.add("-std=c++11")
    cppFlags.add("-fexceptions")
    cppFlags.add("-frtti")
    cppFlags.add("-I${file("/home/jxsun/OpenCV-android-sdk/sdk/native/jni/include")}".toString())
    cppFlags.add("-I${file("/home/jxsun/OpenCV-android-sdk/sdk/native/jni/include/opencv")}".toString())
    cppFlags.add("-I${file("/home/jxsun/OpenCV-android-sdk/sdk/native/jni/include/opencv2")}".toString())
    abiFilters.add("armeabi")
    ldLibs.addAll(["android", "EGL", "GLESv2", "dl", "log", "z"])
    stl = "gnustl_shared"
    platformVersion = 21
}

但不幸的是，我仍然收到许多关于tbb的未定义引用错误：

/home/jxsun/StudioProjects/Test/app/src/main/jniLibs/armeabi/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface6::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::~start_for(): error: undefined reference to 'vtable for tbb::task'

它似乎是libtbb.a仍然无法解决，即使我已经把它放在预构建和依赖块。我该如何解决这个问题？

Answer 1

我已经按照@AlexCohn的建议改变了jni.dependencies的顺序，现在它就像一种魅力。因此，我想在这里分享我的链接命令，以供哪些人可能面临一些问题:d

android.sources {
    main {
        jni {
            dependencies {
                /*
                 * OpenCV
                 */
                library "opencv_flann" linkage "static"
                library "opencv_imgproc" linkage "static"
                library "opencv_ml" linkage "static"
                library "opencv_photo" linkage "static"
                library "opencv_video" linkage "static"
                library "opencv_imgcodecs" linkage "static"
                library "opencv_shape" linkage "static"
                library "opencv_videoio" linkage "static"
                library "opencv_highgui" linkage "static"
                library "opencv_objdetect" linkage "static"
                library "opencv_superres" linkage "static"
                library "opencv_ts" linkage "static"
                library "opencv_features2d" linkage "static"
                library "opencv_calib3d" linkage "static"
                library "opencv_stitching" linkage "static"
                library "opencv_videostab" linkage "static"
                library "opencv_core" linkage "static"
                library "opencv_hal" linkage "static"

                /*
                 * OpenCV 3rd parties
                 */
                library "IlmImf" linkage "static"
                library "libjpeg" linkage "static"
                library "libjasper" linkage "static"
                library "libpng" linkage "static"
                library "libwebp" linkage "static"
                library "libtiff" linkage "static"
                library "tbb" linkage "static"
            }
        }
    }
}