获得String形式日期的后一天

  try {
                            SimpleDateFormat sdf = new SimpleDateFormat(
                                    "yyyy-MM-dd");
                            Calendar c = Calendar.getInstance();
                            c.setTime(sdf.parse(info.getAddTime()));
                            // 设置当前日期
                            c.add(Calendar.DATE, 1); // 日期加1
                            Date date = c.getTime(); // 结果
                            mEditor.putString(ISUPDATAPRODUCT, sdf.format(date));
                            mEditor.commit();
                        } catch (ParseException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }