Static Initialization on OpenCV Android [duplicate]

Answer 1

You should add the code:

mOpenCVCallBack.onManagerConnected(LoaderCallbackInterface.SUCCESS);

after:

if(!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack)) 

If you remove:

if(!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))  

code block then nobody calls.

Hope it can help you.

Answer 2

The log message:

"OpenCV error: Cannot load info library for OpenCV."

shuld not worry you. At least in my app it tells me something like OpenCV libs init is OK afterwards.

In the sample code the CameraBridgeViewBase object gets enabled when the BaseLoaderCallback gets called. That happens when the async loading of the opencv library has finished. When you load the library statically, try adding a call to mOpenCVCameraView.enableView() in your onResume() method (after loading the lib of coourse).

Answer 3

initAsync() needs a callback to load opencv libs and your jni libs.

check the callback function and make it right in the if (!OpenCVLoader.initDebug()), not in the callback!

            if (!OpenCVLoader.initDebug()) {
            // Handle initialization error
              Log.i(TAG, "OpenCV load not successfully");
        } else {
            System.loadLibrary("mixed_sample");
            //System.loadLibrary("my_jni_lib2");

            InitFeature(width,height);

            mOpenCvCameraView.enableView();
        }

it works for the tutorial 2 in OCV4Android2.4.5.

Answer 4

I have the same problem, I have solved the problem by adding the following code at the first of my Activity class:

static {
    if (!OpenCVLoader.initDebug()) {
        // Handle initialization error
    }
}

Also I added

mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);

before the line

OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback); 

and commented the line

OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback);

Good luck.