源码:
package com.sunmi.opencv.camera;
import android.Manifest;
import android.os.Build;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.SurfaceView;
import android.view.View;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.JavaCamera2View;
import org.opencv.core.Mat;
public class CameraOpenCV extends AppCompatActivity implements CameraBridgeViewBase.CvCameraViewListener2 {
private org.opencv.android.JavaCamera2View cv_camera = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.camera_view);
if(Build.VERSION.SDK_INT >= 23){
ActivityCompat.requestPermissions(this,new String[]{
Manifest.permission.CAMERA,Manifest.permission.WRITE_EXTERNAL_STORAGE},1);
}
cv_camera = findViewById(R.id.cv_camera);
cv_camera.setVisibility(SurfaceView.VISIBLE);
cv_camera.setCameraIndex(CameraBridgeViewBase.CAMERA_ID_ANY);
cv_camera.enableView();
}
@Override
public void onCameraViewStarted(int width, int height) {
}
@Override
public void onCameraViewStopped() {
}
@Override
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
return inputFrame.rgba();
}
}
layout文件:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<org.opencv.android.JavaCamera2View
android:layout_marginTop="10dp"
android:layout_marginBottom="10dp"
android:layout_marginRight="10dp"
android:layout_marginLeft="10dp"
android:id="@+id/cv_camera"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>