private Calendar calendar;
  private SimpleDateFormat simpleDateFormat;
  private void getWeekTime() {
        simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日");
        timeList.clear();

        //獲取當(dāng)前年月
        int currentYear = calendar.get(Calendar.YEAR);
        int currentMonth = calendar.get(Calendar.MONTH);


        //設(shè)置時(shí)間
        calendar.set(Calendar.MONTH, currentMonth);
        calendar.set(Calendar.YEAR, currentYear);

        //設(shè)置當(dāng)前為這周的第2天，默認(rèn)上周日為這周的第一天
        calendar.set(Calendar.DAY_OF_WEEK, 2);
        for (int i = 0; i < 52; i++) {

            //獲取你設(shè)置的時(shí)間（年巫湘，月，日），這樣獲取的時(shí)間就是這周一的日期了
            int year1 = calendar.get(Calendar.YEAR);
            int month1 = calendar.get(Calendar.MONTH) + 1;
            int dayWeekStart = calendar.get(Calendar.DAY_OF_MONTH);

            //獲取每周周一的日期
            String dayStart;
            //判斷獲取的時(shí)間是否是本年卓起，不是本年的話(huà)，就獲取年/月/日凹炸，是本年戏阅，就獲取月/日
            if (year1 != currentYear) {
                dayStart = year1 + "/" + month1 + "/" + dayWeekStart;
            } else {
                dayStart = month1 + "/" + dayWeekStart;
            }

            //獲取周一日期的字符串，為獲取其時(shí)間戳做準(zhǔn)備
            String pattern = year1 + "年" + month1 + "月" + dayWeekStart + "日";

            //將日期往后加6天啤它，也就是本周的周日
            calendar.add(Calendar.DATE, 6);


            //獲取本周周日的日期奕筐，有獲取一次年份舱痘，是為了避免一周不在同一年。
            int year2 = calendar.get(Calendar.YEAR);
            int month2 = calendar.get(Calendar.MONTH) + 1;
            int dayWeekEnd = calendar.get(Calendar.DAY_OF_MONTH);

            //獲取每周周一的日期
            String dayEnd = "";
            if (year2 != currentYear) {
                dayEnd = year2 + "/" + month2 + "/" + dayWeekEnd;
            } else {
                dayEnd = month2 + "/" + dayWeekEnd;
            }
            Date date = new Date();
            try {
                date = simpleDateFormat.parse(pattern);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            String title;

            //如果是本周的話(huà)离赫，就返回“本周”芭逝，上周就返回“上周”
            if (i == 0) {
                title = "本周";
            } else if (i == 1) {
                title = "上周";
            } else {
                title = dayStart + "-" + dayEnd;
            }

            WeekTime weekTime = new WeekTime(date.getTime(),
                    //將周一的時(shí)間戳加1513526400，就是周末的時(shí)間戳了
                    date.getTime() + 1513526400,
                    String.valueOf(year2),
                    String.valueOf(month2),
                    title);
            timeList.add(weekTime);
            //當(dāng)前時(shí)間已經(jīng)是本周的周日笆怠，那么將時(shí)間往前推13天铝耻，就是上周一，進(jìn)入下一個(gè)循環(huán)
            calendar.add(Calendar.DATE, -13);
        }
    }

代碼沒(méi)有簡(jiǎn)化蹬刷。主要是calendar.add(Calendar.DATE, num);這個(gè)方法可以將當(dāng)前時(shí)間進(jìn)行推移瓢捉；