Android Open Source - android-opencv-template Main Activity

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License

The source code is released under:

MIT License

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Java Source Code

package com.floatlearning.android_opencv_template;
/*from   w  ww .  jav a 2 s.  com*/
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.JavaCameraView;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.OpenCVLoader;
import org.opencv.core.Mat;


public class MainActivity extends Activity implements CameraBridgeViewBase.CvCameraViewListener2 {
    private static final String TAG = "MainActivity";

    private CameraBridgeViewBase mOpenCVCameraView;
    private BaseLoaderCallback   mLoaderCallback = new BaseLoaderCallback(this) {
        @Override
        public void onManagerConnected(int status) {
            switch (status) {
                case LoaderCallbackInterface.SUCCESS: {
                    Log.i(TAG, "OpenCV load success");

                    mOpenCVCameraView.enableView();
                } break;
                default: {
                    super.onManagerConnected(status);
                } break;
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mOpenCVCameraView = new JavaCameraView(this, -1);
        setContentView(mOpenCVCameraView);
        mOpenCVCameraView.setCvCameraViewListener(this);
    }

    @Override
    public void onPause() {
        super.onPause();

        if (mOpenCVCameraView != null) {
            mOpenCVCameraView.disableView();
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_9, this, mLoaderCallback);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        if (mOpenCVCameraView != null) {
            mOpenCVCameraView.disableView();
        }
    }

    public void onCameraViewStarted(int width, int height) { }

    public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
        return inputFrame.rgba();
    }

    public void onCameraViewStopped() { }
}

Java Source Code List