Android Zxing二维码扫描图片拉伸问题的解决方法

void initFromCameraParameters(Camera camera) {
 Camera.Parameters parameters = camera.getParameters();
 previewFormat = parameters.getPreviewFormat();
 previewFormatString = parameters.get("preview-format");
 Log.d(TAG, "Default preview format: " + previewFormat + '/' + previewFormatString);
 WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
 Display display = manager.getDefaultDisplay();
 screenResolution = new Point(display.getWidth(), display.getHeight());
 Log.d(TAG, "Screen resolution: " + screenResolution);

 //added
 Point screenResolutionForCamera = new Point();
 screenResolutionForCamera.x = screenResolution.x;
 screenResolutionForCamera.y = screenResolution.y;
 // preview size is always something like 480*320, other 320*480
 if (screenResolution.x < screenResolution.y) {
  screenResolutionForCamera.x = screenResolution.y;
  screenResolutionForCamera.y = screenResolution.x;
 }
 cameraResolution = getCameraResolution(parameters, screenResolutionForCamera);

// cameraResolution = getCameraResolution(parameters, screenResolution);
 Log.d(TAG, "Camera resolution: " + screenResolution);
 }