package com.bigkoo.pickerview.utils;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.Locale;
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public class ChinaDate {
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/**
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* <lunarInfo 数组值的计算原理>
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*
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* 0x代表十六进制，后面的五位数是十六进制数。
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* 举个例子: 1980年的数据是 0x095b0
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* 二进制: 0000 1001 0101 1011 0000
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* 1-4: 表示当年是否为闰年，是的话为1，否则为0。
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* 5-16: 为除了闰月外的正常月份是大月还是小月，1为30天，0为29天。
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* 注意: 从1月到12月对应的是第16位到第5位。
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* 17-20: 非闰年为0，大于0表示闰月月份，仅当存在闰月的情况下有意义。
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*/
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final private static long[] lunarInfo = new long[]{
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0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2,//1900-1909
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0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977,//1910-1919
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0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970,//1920-1929
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0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950,//1930-1939
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0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557,//1940-1949
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0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5b0, 0x14573, 0x052b0, 0x0a9a8, 0x0e950, 0x06aa0,//1950-1959
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0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0,//1960-1969
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0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b6a0, 0x195a6,//1970-1979
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0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570,//1980-1989
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0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0,//1990-1999
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0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5,//2000-2009
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0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930,//2010-2019
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0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530,//2020-2029
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0x05aa0, 0x076a3, 0x096d0, 0x04afb, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45,//2030-2039
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0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0,//2040-2049
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0x14b63, 0x09370, 0x049f8, 0x04970, 0x064b0, 0x168a6, 0x0ea50, 0x06b20, 0x1a6c4, 0x0aae0,//2050-2059
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0x0a2e0, 0x0d2e3, 0x0c960, 0x0d557, 0x0d4a0, 0x0da50, 0x05d55, 0x056a0, 0x0a6d0, 0x055d4,//2060-2069
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0x052d0, 0x0a9b8, 0x0a950, 0x0b4a0, 0x0b6a6, 0x0ad50, 0x055a0, 0x0aba4, 0x0a5b0, 0x052b0,//2070-2079
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0x0b273, 0x06930, 0x07337, 0x06aa0, 0x0ad50, 0x14b55, 0x04b60, 0x0a570, 0x054e4, 0x0d160,//2080-2089
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0x0e968, 0x0d520, 0x0daa0, 0x16aa6, 0x056d0, 0x04ae0, 0x0a9d4, 0x0a2d0, 0x0d150, 0x0f252,//2090-2099
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0x0d520};//2100
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private final static String[] nStr1 = new String[]{"", "正", "二", "三", "四",
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"五", "六", "七", "八", "九", "十", "冬", "腊"};
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private final static String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊",
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"己", "庚", "辛", "壬", "癸"};
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private final static String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰",
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"巳", "午", "未", "申", "酉", "戌", "亥"};
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private final static String[] Animals = new String[]{"鼠", "牛", "虎", "兔",
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"龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"};
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/**
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* 传回农历
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*
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* @param y 年的总天数
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* @return 农历
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*/
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final private static int lYearDays(int y) {
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int i, sum = 348;
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for (i = 0x8000; i > 0x8; i >>= 1) {
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if ((lunarInfo[y - 1900] & i) != 0)
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sum += 1;
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}
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return (sum + leapDays(y));
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}
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/**
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* 传回农历
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*
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* @param y 年闰月的天数
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* @return 农历
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*/
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final public static int leapDays(int y) {
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if (leapMonth(y) != 0) {
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if ((lunarInfo[y - 1900] & 0x10000) != 0)
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return 30;
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else
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return 29;
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} else
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return 0;
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}
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/**
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* 传回农历
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*
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* @param y 年闰哪个月 1-12 , 没闰传回 0
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* @return 农历
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*/
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final public static int leapMonth(int y) {
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return (int) (lunarInfo[y - 1900] & 0xf);
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}
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/**
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* 传回农历 y
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*
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* @param y y年m月的总天数
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* @param m y年m月的总天数
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* @return 农历
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*/
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final public static int monthDays(int y, int m) {
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if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
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return 29;
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else
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return 30;
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}
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/**
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* 传回农历
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*
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* @param y 年的生肖
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* @return
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*/
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final public static String AnimalsYear(int y) {
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return Animals[(y - 4) % 12];
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}
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/**
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* 传入
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*
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* @param num 月日的offset 传回干支,0是甲子
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* @return 干支
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*/
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final private static String cyclicalm(int num) {
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return (Gan[num % 10] + Zhi[num % 12]);
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}
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/**
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* 传入 offset 传回干支
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*
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* @param y 0是甲子
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* @return 干支
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*/
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final public static String cyclical(int y) {
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int num = y - 1900 + 36;
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return (cyclicalm(num));
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}
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/**
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* 传出y年m月d日对应的农历.year0 .month1 .day2 .yearCyl3 .monCyl4 .dayCyl5 .isLeap6
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*
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* @param y 年
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* @param m 月
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* @param d 日
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* @return y年m月d日对应的农历
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*/
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final public static long[] calElement(int y, int m, int d) {
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long[] nongDate = new long[7];
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int i = 0, temp = 0, leap = 0;
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Date baseDate = new GregorianCalendar(0 + 1900, 0, 31).getTime();
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Date objDate = new GregorianCalendar(y, m - 1, d).getTime();
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long offset = (objDate.getTime() - baseDate.getTime()) / 86400000L;
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nongDate[5] = offset + 40;
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nongDate[4] = 14;
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for (i = 1900; i < 2100 && offset > 0; i++) {
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temp = lYearDays(i);
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offset -= temp;
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nongDate[4] += 12;
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}
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if (offset < 0) {
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offset += temp;
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i--;
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nongDate[4] -= 12;
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}
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nongDate[0] = i;
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nongDate[3] = i - 1864;
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leap = leapMonth(i); // 闰哪个月
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nongDate[6] = 0;
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for (i = 1; i < 13 && offset > 0; i++) {
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// 闰月
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if (leap > 0 && i == (leap + 1) && nongDate[6] == 0) {
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--i;
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nongDate[6] = 1;
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temp = leapDays((int) nongDate[0]);
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} else {
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temp = monthDays((int) nongDate[0], i);
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}
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// 解除闰月
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if (nongDate[6] == 1 && i == (leap + 1))
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nongDate[6] = 0;
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offset -= temp;
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if (nongDate[6] == 0)
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nongDate[4]++;
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}
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if (offset == 0 && leap > 0 && i == leap + 1) {
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if (nongDate[6] == 1) {
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nongDate[6] = 0;
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} else {
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nongDate[6] = 1;
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--i;
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--nongDate[4];
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}
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}
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if (offset < 0) {
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offset += temp;
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--i;
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--nongDate[4];
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}
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nongDate[1] = i;
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nongDate[2] = offset + 1;
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return nongDate;
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}
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public final static String getChinaDate(int day) {
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String a = "";
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if (day == 10)
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return "初十";
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if (day == 20)
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return "二十";
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if (day == 30)
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return "三十";
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int two = (int) ((day) / 10);
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if (two == 0)
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a = "初";
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if (two == 1)
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a = "十";
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if (two == 2)
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a = "廿";
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if (two == 3)
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a = "三";
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int one = (int) (day % 10);
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switch (one) {
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case 1:
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a += "一";
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break;
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case 2:
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a += "二";
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break;
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case 3:
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a += "三";
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break;
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case 4:
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a += "四";
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break;
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case 5:
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a += "五";
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break;
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case 6:
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a += "六";
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break;
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case 7:
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a += "七";
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break;
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case 8:
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a += "八";
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break;
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case 9:
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a += "九";
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break;
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}
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return a;
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}
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public static String getCurrentLunarDate() {
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Calendar today = Calendar.getInstance(Locale.SIMPLIFIED_CHINESE);
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int year = today.get(Calendar.YEAR);
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int month = today.get(Calendar.MONTH) + 1;
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int date = today.get(Calendar.DATE);
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long[] l = calElement(year, month, date);
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StringBuffer sToday = new StringBuffer();
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try {
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sToday.append(sdf.format(today.getTime()));
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sToday.append(" 农历");
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sToday.append(cyclical(year));
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sToday.append('(');
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sToday.append(AnimalsYear(year));
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sToday.append(")年");
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sToday.append(nStr1[(int) l[1]]);
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sToday.append("月");
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sToday.append(getChinaDate((int) (l[2])));
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return sToday.toString();
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} finally {
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sToday = null;
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}
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}
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public static String oneDay(int year, int month, int day) {
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// Calendar today = Calendar.getInstance(Locale.SIMPLIFIED_CHINESE);
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long[] l = calElement(year, month, day);
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StringBuffer sToday = new StringBuffer();
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try {
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// sToday.append(sdf.format(today.getTime()));
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sToday.append(" 农历");
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sToday.append(cyclical(year));
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sToday.append('(');
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sToday.append(AnimalsYear(year));
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sToday.append(")年");
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sToday.append(nStr1[(int) l[1]]);
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sToday.append("月");
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sToday.append(getChinaDate((int) (l[2])));
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return sToday.toString();
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} finally {
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sToday = null;
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}
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}
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private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年M月d日 EEEEE");
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/**
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* @param lunarYear 农历年份
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* @return String of Ganzhi: 甲子年
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* 甲乙丙丁戊己庚辛壬癸
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* 子丑寅卯辰巳无为申酉戌亥
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*/
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public static String getLunarYearText(int lunarYear) {
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return Gan[(lunarYear - 4) % 10] + Zhi[(lunarYear - 4) % 12] + "年";
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}
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public static ArrayList<String> getYears(int startYear, int endYear) {
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ArrayList<String> years = new ArrayList<>();
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for (int i = startYear; i < endYear; i++) {
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years.add(String.format("%s(%d)", getLunarYearText(i), i));
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}
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return years;
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}
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/**
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* 获取year年的所有月份
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*
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* @param year 年
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* @return 月份列表
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*/
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public static ArrayList<String> getMonths(int year) {
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ArrayList<String> baseMonths = new ArrayList<>();
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for (int i = 1; i < nStr1.length; i++) {
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baseMonths.add(nStr1[i] + "月");
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}
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if (leapMonth(year) != 0) {
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baseMonths.add(leapMonth(year), "闰" + nStr1[leapMonth(year)] + "月");
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}
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return baseMonths;
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}
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/**
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* 获取每月农历显示名称
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*
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* @param maxDay 天
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* @return 名称列表
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*/
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public static ArrayList<String> getLunarDays(int maxDay) {
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ArrayList<String> days = new ArrayList<>();
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for (int i = 1; i <= maxDay; i++) {
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days.add(getChinaDate(i));
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}
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return days;
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}
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}
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