private void sendEmail() {

    /*
     * Create attachment files
     * then attach files to email and send
     */
    File file = null;
    String message = "";

    /*
     * Update the comments field members from the textbox
     */
    storeAddressFields();

    // change based on date
    String file_name = "graffiti_" + System.currentTimeMillis() + ".csv";
    String dir_name = "/Graffiti Files";
    /*
     message = String.format(
    			"COMMENTS: \n\n\nLat: %1$s\nLong: %2$s\nBuilding: %3$s\nStreet: %4$s\nCity: %5$s\nState: %6$s\nZip: %7$s\n",
    			m_latitude, m_longitude, m_bldg_num, m_street, m_city, m_state, m_zip);
    */
    // Create attachment to send with email

    message = generateCsvFile();
    if (message == "") {
      message = "Error";
      displayMessage("ERROR");
    }
    file = createLocationFile(file_name, dir_name, message);

    m_loc_file_location = file.getAbsolutePath();
    String pic_attachment = m_camera_tool.getPictureLocation();
    /*
     * Set up email activity
     */

    Intent email_intent = m_email_tool.sendEmail(m_loc_file_location, pic_attachment);

    /*
     * Send email, or catch no email client
     */
    try {
      startActivityForResult(
          Intent.createChooser(email_intent, "Send mail..."), EMAIL_ACTIVITY_KEY);
    } catch (android.content.ActivityNotFoundException ex) {
      displayMessage("There are no email clients installed.");
    }
    // displayMessage(full_path);
  }
  /*
   * functions called when app is ending
   */
  private void deleteTempFiles() {
    File file = null;
    boolean deleted = false;

    String pic_file_name = m_camera_tool.getPictureLocation();
    if (pic_file_name != "") {
      file = new File(pic_file_name);
      deleted = file.delete();
      if (deleted == false) {
        displayMessage("Could not delete pic");
      }
    }

    if (m_loc_file_location != "") {
      file = new File(m_loc_file_location);
      deleted = file.delete();
      if (deleted == false) {
        displayMessage("Could not delete text file");
      }
    }
  }
  private void takePicture() {

    startActivityForResult(m_camera_tool.takePicture(), m_camera_tool.getActivityKey());
  }
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
      case SETTINGS_ACTIVITY_KEY:
        // user possibly changed GPS location
        updateLocation();

        break;
      case CAMERA_ACTIVITY_KEY:
        // check if picture received
        if (resultCode == 0) {
          break;
        }
        // TODO: move to own function
        ImageController image_control = new ImageController();
        Bitmap m_bmap = null;

        String path = m_camera_tool.getPictureLocation();
        BitmapFactory m_bmap_factory = new BitmapFactory();
        m_bmap = m_bmap_factory.decodeFile(path);

        Float width = new Float(m_bmap.getWidth());
        Float height = new Float(m_bmap.getHeight());
        Float ratio = width / height;

        m_bmap =
            Bitmap.createScaledBitmap(
                m_bmap, (int) (THUMBNAIL_HEIGHT * ratio), THUMBNAIL_WIDTH, false);

        int padding = (THUMBNAIL_WIDTH - m_bmap.getWidth()) / 2;

        iv_user_pic.setPadding(padding, 0, padding, 0);
        iv_user_pic.setImageBitmap(m_bmap);

        break;
      case EMAIL_ACTIVITY_KEY:
        String message = "";
        if (resultCode == RESULT_CANCELED) {
          message = String.format("Email failed: %1$s", resultCode);

        } else {
          message = String.format("Email succeeded: %1$s", resultCode);
          shutdownApp();
        }
        finish();
        // displayMessage(message);

        break;
      case COMMENTS_ACTIVITY_KEY:
        // store comments
        if (data != null) {
          m_comments = data.getExtras().getString(COMMENTS);
        }

        if (resultCode == 1) {
          // displayMessage("Time to send email..." + m_comments);
          sendEmail();
        } else {
          // displayMessage("Continue Editing" + m_comments);
        }
      default:
        // UNKNOWN Activity started
        break;
    }
  }