Android调试openCV4Android的时候出现以下错误

java.lang.UnsatisfiedLinkError: No implementation found for long org.opencv.core.Mat.n_Mat() (tried Java_org_opencv_core_Mat_n_1Mat and Java_org_opencv_core_Mat_n_1Mat__)

原因是因为没有加载openCV4Android的库，需要动态加载，在需要用到的activity中添加如下代码：

@Override    protected void onResume() {        super.onResume();        if (!OpenCVLoader.initDebug()) {            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");            OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, this, mLoaderCallback);        } else {            Log.d(TAG, "OpenCV library found inside package. Using it!");            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);        }    }

//openCV4Android 需要加载用到    private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {        @Override        public void onManagerConnected(int status) {            switch (status) {                case LoaderCallbackInterface.SUCCESS: {                    Log.i(TAG, "OpenCV loaded successfully");//                    mOpenCvCameraView.enableView();//                    mOpenCvCameraView.setOnTouchListener(ColorBlobDetectionActivity.this);                }                break;                default: {                    super.onManagerConnected(status);                }                break;            }        }    };