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  • OpenCV4Android——No implementation found for native Lorg/opencv/core/Mat;.n_Mat ()J

    ok 12-17 08:13:10.461: W/dalvikvm(540): No implementation found for native Lorg/opencv/core/Mat;.n_Mat ()J
    http://www.itstrike.cn/Question/5d7e055b-42ed-469a-ad8b-fb722a2dca2d.html
    哦,你不能使用任何 opencv-相关的代码,直到管理器完成加载;)
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    }

    private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
    @Override
    public void onManagerConnected(int status) {
    if (status == LoaderCallbackInterface.SUCCESS ) {
    // now we can call opencv code !

    Bitmap mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.cmc7);
    Mat myMat = new Mat();
    Utils.bitmapToMat(mBitmap, myMat);

    } else {
    super.onManagerConnected(status);
    }
    }
    };

    @Override
    public void onResume() {;
    super.onResume();
    OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_5,this, mLoaderCallback);
    // you may be tempted, to do something here, but it's *async*, and may take some time,
    // so any opencv call here will lead to unresolved native errors.
    }

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  • 原文地址:https://www.cnblogs.com/carl2380/p/4176596.html
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