java 獲取當前天之後或之前7天日期
阿新 • • 發佈：2018-12-06
- /**
- * 獲取過去或者未來 任意天內的日期陣列
- * @param intervals intervals天內
- * @return 日期陣列
- */
- public static ArrayList<String> test(int intervals ) {
- ArrayList<String> pastDaysList = new ArrayList<>();
- ArrayList<String> fetureDaysList = new ArrayList<>();
- for (int i = 0; i <intervals; i++) {
- pastDaysList.add(getPastDate(i));
- fetureDaysList.add(getFetureDate(i));
- }
- return pastDaysList;
- }
- /**
- * 獲取過去第幾天的日期
- *
- * @param past
- * @return
- */
- public static String getPastDate(int past) {
- Calendar calendar = Calendar.getInstance();
- calendar.set(Calendar.DAY_OF_YEAR, calendar.get(Calendar.DAY_OF_YEAR) - past);
- Date today = calendar.getTime();
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
- String result = format.format(today);
- Log.e(null, result);
- return result;
- }
- /**
- * 獲取未來 第 past 天的日期
- * @param past
- * @return
- */
- public static String getFetureDate(int past) {
- Calendar calendar = Calendar.getInstance();
- calendar.set(Calendar.DAY_OF_YEAR, calendar.get(Calendar.DAY_OF_YEAR) + past);
- Date today = calendar.getTime();
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
- String result = format.format(today);
- Log.e(null, result);
- return result;
- }