修改二维码扫描框的大小位置

在com.zxing.camera包中找到

//修改这里最小最大值，限制扫描框大小

 private static final int MIN_FRAME_WIDTH = 240;//240

  private static final int MIN_FRAME_HEIGHT = 240;//240

  private static final int MAX_FRAME_WIDTH = 480;//480

  private static final int MAX_FRAME_HEIGHT = 480;//360

CameraManager类的getFramingRect方法

public Rect getFramingRect() {

    Point screenResolution = configManager.getScreenResolution();

    if (framingRect == null) {

      if (camera == null) {

        return null;

      }

      int width = screenResolution.x * 2 / 3;//设定框框宽度大小

      if (width < MIN_FRAME_WIDTH) {

        width = MIN_FRAME_WIDTH;

      } else if (width > MAX_FRAME_WIDTH) {

        width = MAX_FRAME_WIDTH;

      }

      int height = screenResolution.y * 2/ 4;//设定框框高度大小

      if (height < MIN_FRAME_HEIGHT) {

        height = MIN_FRAME_HEIGHT;

      } else if (height > MAX_FRAME_HEIGHT) {

        height = MAX_FRAME_HEIGHT;

      }

      int leftOffset = (screenResolution.x - width) / 2;//设定框框离左边相对位置

      int topOffset = (screenResolution.y - height) / 5;//设定框框离顶部相对位置

      framingRect = new Rect(leftOffset, topOffset, leftOffset + width, topOffset + height);

      Log.d(TAG, "Calculated framing rect: " + framingRect);

    }

    return framingRect;

  }