OpenCV + Android：如何在JavaCameraView中访问摄像头

Question

Maybe a very stupid question. Anyway, I'm trying to get into OpenCV on Android devices. Therefore I'm playing around with the examples of the OpenCV Android SDK. My problem is, that my code in the MainActivity which uses a JavaCameraView instance. That instance has a private member which is the actual camera.

I want to access the camera in the JavaCameraView.surfaceChanged event to use code like that? So question a) how to hook on that event and b) how to access the camera member?

Here's some example code from another post :

public void surfaceChanged(SurfaceHolder holder, int format, int width,
        int height) {

    Size size = params.getPreviewSize();
    this.height = size.height;
    this.width = size.width;
    camera.setParameters( params );
    camera.startPreview();

}

Answer 1

我发现的唯一解决方案是从JavaCameraView或NativeCameraView继承以获取对其受保护的摄像头成员的访问权限。