如何在AndroidStudio中使用EasyImage将矩形叠加添加到摄像头屏幕

dependencies {
    implementation 'com.github.jkwiecien:EasyImage:2.0.3'
}

<SurfaceView
    android:id="@+id/surfaceView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

import pl.aprilapps.easyphotopicker.DefaultCallback;
import pl.aprilapps.easyphotopicker.EasyImage;

public class MainActivity extends AppCompatActivity {

    private SurfaceView surfaceView;
    private Camera camera;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        surfaceView = findViewById(R.id.surfaceView);

        // 初始化EasyImage库
        EasyImage.configuration(this)
                .setImagesFolderName("MyApp")
                .saveInAppExternalFilesDir()
                .setCopyExistingPicturesToPublicLocation(true);

        // 初始化摄像头
        camera = Camera.open();
        Camera.Parameters parameters = camera.getParameters();
        parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
        camera.setParameters(parameters);
        camera.setDisplayOrientation(90);

        // 设置SurfaceHolder回调
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(new SurfaceHolder.Callback() {
            @Override
            public void surfaceCreated(SurfaceHolder holder) {
                try {
                    camera.setPreviewDisplay(holder);
                    camera.startPreview();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                if (holder.getSurface() == null) {
                    return;
                }

                try {
                    camera.stopPreview();
                } catch (Exception e) {
                    e.printStackTrace();
                }

                try {
                    camera.setPreviewDisplay(holder);
                    camera.startPreview();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void surfaceDestroyed(SurfaceHolder holder) {
                camera.stopPreview();
                camera.release();
            }
        });
    }

    // 添加矩形叠加到摄像头屏幕
    private void addRectangleOverlay() {
        Canvas canvas = surfaceView.getHolder().lockCanvas();
        if (canvas != null) {
            Paint paint = new Paint();
            paint.setColor(Color.RED);
            paint.setStyle(Paint.Style.STROKE);
            paint.setStrokeWidth(5);

            Rect rect = new Rect(100, 100, 500, 500);
            canvas.drawRect(rect, paint);

            surfaceView.getHolder().unlockCanvasAndPost(canvas);
        }
    }

    // 拍照按钮点击事件
    public void takePhoto(View view) {
        EasyImage.openCamera(this, 0);
    }

    // 处理拍照结果
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        EasyImage.handleActivityResult(requestCode, resultCode, data, this, new DefaultCallback() {
            @Override
            public void onImagePickerError(Exception e, EasyImage.ImageSource source, int type) {
                e.printStackTrace();
            }

            @Override
            public void onImagePicked(File imageFile, EasyImage.ImageSource source, int type) {
                // 处理拍照后的图片
            }
        });
    }
}

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="拍照"
    android:onClick="takePhoto" />

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />