@SuppressWarnings("unused")
  void setButtonVisibility(boolean visible) {
    if (shutterButton != null && visible == true && DISPLAY_SHUTTER_BUTTON) {
      shutterButton.setVisibility(View.VISIBLE);
    } else if (shutterButton != null) {
      shutterButton.setVisibility(View.GONE);
    }
  }
Displays an initial message to the user while waiting for the first OCR request to be
completed after starting realtime OCR.
OCRTest/src/main/java/edu/sfsu/cs/orange/ocr/CaptureActivity.java