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

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09/14
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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;
}
}
};