see 12/26 log

Author: Blankj

update_log.md

@@ -1,3 +1,4 @@
+* 16/12/26 新增阴历相关工具类
 * 16/12/21 SpannableStringUtils撒花完结
 * 16/12/19 SpannableStringUtils完善中
 * 16/12/18 SpannableStringUtils采用构造者模式

utilcode/src/main/java/com/blankj/utilcode/utils/LunarUtils.java

@@ -0,0 +1,204 @@
+package com.blankj.utilcode.utils;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 2016/12/5
+ *     desc  : 阴历相关工具类
+ * </pre>
+ */
+public class LunarUtils {
+
+    private LunarUtils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /*
+     * |----4位闰月|-------------13位1为30天，0为29天|
+     */
+    private static int[] lunar_month_days = {1887, 0x1694, 0x16aa, 0x4ad5, 0xab6, 0xc4b7, 0x4ae, 0xa56, 0xb52a, 0x1d2a,
+            0xd54, 0x75aa, 0x156a, 0x1096d, 0x95c, 0x14ae, 0xaa4d, 0x1a4c, 0x1b2a, 0x8d55, 0xad4, 0x135a, 0x495d, 0x95c,
+            0xd49b, 0x149a, 0x1a4a, 0xbaa5, 0x16a8, 0x1ad4, 0x52da, 0x12b6, 0xe937, 0x92e, 0x1496, 0xb64b, 0xd4a, 0xda8,
+            0x95b5, 0x56c, 0x12ae, 0x492f, 0x92e, 0xcc96, 0x1a94, 0x1d4a, 0xada9, 0xb5a, 0x56c, 0x726e, 0x125c, 0xf92d,
+            0x192a, 0x1a94, 0xdb4a, 0x16aa, 0xad4, 0x955b, 0x4ba, 0x125a, 0x592b, 0x152a, 0xf695, 0xd94, 0x16aa, 0xaab5,
+            0x9b4, 0x14b6, 0x6a57, 0xa56, 0x1152a, 0x1d2a, 0xd54, 0xd5aa, 0x156a, 0x96c, 0x94ae, 0x14ae, 0xa4c, 0x7d26,
+            0x1b2a, 0xeb55, 0xad4, 0x12da, 0xa95d, 0x95a, 0x149a, 0x9a4d, 0x1a4a, 0x11aa5, 0x16a8, 0x16d4, 0xd2da,
+            0x12b6, 0x936, 0x9497, 0x1496, 0x1564b, 0xd4a, 0xda8, 0xd5b4, 0x156c, 0x12ae, 0xa92f, 0x92e, 0xc96, 0x6d4a,
+            0x1d4a, 0x10d65, 0xb58, 0x156c, 0xb26d, 0x125c, 0x192c, 0x9a95, 0x1a94, 0x1b4a, 0x4b55, 0xad4, 0xf55b,
+            0x4ba, 0x125a, 0xb92b, 0x152a, 0x1694, 0x96aa, 0x15aa, 0x12ab5, 0x974, 0x14b6, 0xca57, 0xa56, 0x1526,
+            0x8e95, 0xd54, 0x15aa, 0x49b5, 0x96c, 0xd4ae, 0x149c, 0x1a4c, 0xbd26, 0x1aa6, 0xb54, 0x6d6a, 0x12da,
+            0x1695d, 0x95a, 0x149a, 0xda4b, 0x1a4a, 0x1aa4, 0xbb54, 0x16b4, 0xada, 0x495b, 0x936, 0xf497, 0x1496,
+            0x154a, 0xb6a5, 0xda4, 0x15b4, 0x6ab6, 0x126e, 0x1092f, 0x92e, 0xc96, 0xcd4a, 0x1d4a, 0xd64, 0x956c, 0x155c,
+            0x125c, 0x792e, 0x192c, 0xfa95, 0x1a94, 0x1b4a, 0xab55, 0xad4, 0x14da, 0x8a5d, 0xa5a, 0x1152b, 0x152a,
+            0x1694, 0xd6aa, 0x15aa, 0xab4, 0x94ba, 0x14b6, 0xa56, 0x7527, 0xd26, 0xee53, 0xd54, 0x15aa, 0xa9b5, 0x96c,
+            0x14ae, 0x8a4e, 0x1a4c, 0x11d26, 0x1aa4, 0x1b54, 0xcd6a, 0xada, 0x95c, 0x949d, 0x149a, 0x1a2a, 0x5b25,
+            0x1aa4, 0xfb52, 0x16b4, 0xaba, 0xa95b, 0x936, 0x1496, 0x9a4b, 0x154a, 0x136a5, 0xda4, 0x15ac};
+
+    private static int[] solar_1_1 = {1887, 0xec04c, 0xec23f, 0xec435, 0xec649, 0xec83e, 0xeca51, 0xecc46, 0xece3a,
+            0xed04d, 0xed242, 0xed436, 0xed64a, 0xed83f, 0xeda53, 0xedc48, 0xede3d, 0xee050, 0xee244, 0xee439, 0xee64d,
+            0xee842, 0xeea36, 0xeec4a, 0xeee3e, 0xef052, 0xef246, 0xef43a, 0xef64e, 0xef843, 0xefa37, 0xefc4b, 0xefe41,
+            0xf0054, 0xf0248, 0xf043c, 0xf0650, 0xf0845, 0xf0a38, 0xf0c4d, 0xf0e42, 0xf1037, 0xf124a, 0xf143e, 0xf1651,
+            0xf1846, 0xf1a3a, 0xf1c4e, 0xf1e44, 0xf2038, 0xf224b, 0xf243f, 0xf2653, 0xf2848, 0xf2a3b, 0xf2c4f, 0xf2e45,
+            0xf3039, 0xf324d, 0xf3442, 0xf3636, 0xf384a, 0xf3a3d, 0xf3c51, 0xf3e46, 0xf403b, 0xf424e, 0xf4443, 0xf4638,
+            0xf484c, 0xf4a3f, 0xf4c52, 0xf4e48, 0xf503c, 0xf524f, 0xf5445, 0xf5639, 0xf584d, 0xf5a42, 0xf5c35, 0xf5e49,
+            0xf603e, 0xf6251, 0xf6446, 0xf663b, 0xf684f, 0xf6a43, 0xf6c37, 0xf6e4b, 0xf703f, 0xf7252, 0xf7447, 0xf763c,
+            0xf7850, 0xf7a45, 0xf7c39, 0xf7e4d, 0xf8042, 0xf8254, 0xf8449, 0xf863d, 0xf8851, 0xf8a46, 0xf8c3b, 0xf8e4f,
+            0xf9044, 0xf9237, 0xf944a, 0xf963f, 0xf9853, 0xf9a47, 0xf9c3c, 0xf9e50, 0xfa045, 0xfa238, 0xfa44c, 0xfa641,
+            0xfa836, 0xfaa49, 0xfac3d, 0xfae52, 0xfb047, 0xfb23a, 0xfb44e, 0xfb643, 0xfb837, 0xfba4a, 0xfbc3f, 0xfbe53,
+            0xfc048, 0xfc23c, 0xfc450, 0xfc645, 0xfc839, 0xfca4c, 0xfcc41, 0xfce36, 0xfd04a, 0xfd23d, 0xfd451, 0xfd646,
+            0xfd83a, 0xfda4d, 0xfdc43, 0xfde37, 0xfe04b, 0xfe23f, 0xfe453, 0xfe648, 0xfe83c, 0xfea4f, 0xfec44, 0xfee38,
+            0xff04c, 0xff241, 0xff436, 0xff64a, 0xff83e, 0xffa51, 0xffc46, 0xffe3a, 0x10004e, 0x100242, 0x100437,
+            0x10064b, 0x100841, 0x100a53, 0x100c48, 0x100e3c, 0x10104f, 0x101244, 0x101438, 0x10164c, 0x101842,
+            0x101a35, 0x101c49, 0x101e3d, 0x102051, 0x102245, 0x10243a, 0x10264e, 0x102843, 0x102a37, 0x102c4b,
+            0x102e3f, 0x103053, 0x103247, 0x10343b, 0x10364f, 0x103845, 0x103a38, 0x103c4c, 0x103e42, 0x104036,
+            0x104249, 0x10443d, 0x104651, 0x104846, 0x104a3a, 0x104c4e, 0x104e43, 0x105038, 0x10524a, 0x10543e,
+            0x105652, 0x105847, 0x105a3b, 0x105c4f, 0x105e45, 0x106039, 0x10624c, 0x106441, 0x106635, 0x106849,
+            0x106a3d, 0x106c51, 0x106e47, 0x10703c, 0x10724f, 0x107444, 0x107638, 0x10784c, 0x107a3f, 0x107c53,
+            0x107e48};
+
+    private static int GetBitInt(int data, int length, int shift) {
+        return (data & (((1 << length) - 1) << shift)) >> shift;
+    }
+
+    /**
+     * 从1582年10月开始算
+     *
+     * @param y 年
+     * @param m 月
+     * @param d 日
+     * @return 阳历
+     */
+    private static long SolarToInt(int y, int m, int d) {
+        m = (m + 9) % 12;
+        y = y - m / 10;
+        return 365 * y + y / 4 - y / 100 + y / 400 + (m * 306 + 5) / 10 + (d - 1);
+    }
+
+    /**
+     * @param lunarYear 农历年份
+     * @return String of Ganzhi: 甲子年 Tiangan:甲乙丙丁戊己庚辛壬癸<br/>
+     * Dizhi: 子丑寅卯辰巳无为申酉戌亥
+     */
+    public static String lunarYearToGanZhi(int lunarYear) {
+        final String[] tianGan = {"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"};
+        final String[] diZhi = {"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};
+        return tianGan[(lunarYear - 4) % 10] + diZhi[(lunarYear - 4) % 12] + "年";
+    }
+
+    private static Solar SolarFromInt(long g) {
+        long y = (10000 * g + 14780) / 3652425;
+        long ddd = g - (365 * y + y / 4 - y / 100 + y / 400);
+        if (ddd < 0) {
+            y--;
+            ddd = g - (365 * y + y / 4 - y / 100 + y / 400);
+        }
+        long mi = (100 * ddd + 52) / 3060;
+        long mm = (mi + 2) % 12 + 1;
+        y = y + (mi + 2) / 12;
+        long dd = ddd - (mi * 306 + 5) / 10 + 1;
+        Solar solar = new Solar();
+        solar.solarYear = (int) y;
+        solar.solarMonth = (int) mm;
+        solar.solarDay = (int) dd;
+        return solar;
+    }
+
+    /**
+     * 农历转公历
+     *
+     * @param lunar 农历
+     * @return 阴历
+     */
+    public static Solar LunarToSolar(Lunar lunar) {
+        int days = lunar_month_days[lunar.lunarYear - lunar_month_days[0]];
+        int leap = GetBitInt(days, 4, 13);
+        int offset = 0;
+        int loopend = leap;
+        if (!lunar.isLeap) {
+            if (lunar.lunarMonth <= leap || leap == 0) {
+                loopend = lunar.lunarMonth - 1;
+            } else {
+                loopend = lunar.lunarMonth;
+            }
+        }
+        for (int i = 0; i < loopend; i++) {
+            offset += GetBitInt(days, 1, 12 - i) == 1 ? 30 : 29;
+        }
+        offset += lunar.lunarDay;
+
+        int solar11 = solar_1_1[lunar.lunarYear - solar_1_1[0]];
+
+        int y = GetBitInt(solar11, 12, 9);
+        int m = GetBitInt(solar11, 4, 5);
+        int d = GetBitInt(solar11, 5, 0);
+
+        return SolarFromInt(SolarToInt(y, m, d) + offset - 1);
+    }
+
+    /**
+     * 公历转农历
+     *
+     * @param solar 公历
+     * @return 阴历
+     */
+    public static Lunar SolarToLunar(Solar solar) {
+        Lunar lunar = new Lunar();
+        int index = solar.solarYear - solar_1_1[0];
+        int data = (solar.solarYear << 9) | (solar.solarMonth << 5) | (solar.solarDay);
+        int solar11 = 0;
+        if (solar_1_1[index] > data) {
+            index--;
+        }
+        solar11 = solar_1_1[index];
+        int y = GetBitInt(solar11, 12, 9);
+        int m = GetBitInt(solar11, 4, 5);
+        int d = GetBitInt(solar11, 5, 0);
+        long offset = SolarToInt(solar.solarYear, solar.solarMonth, solar.solarDay) - SolarToInt(y, m, d);
+
+        int days = lunar_month_days[index];
+        int leap = GetBitInt(days, 4, 13);
+
+        int lunarY = index + solar_1_1[0];
+        int lunarM = 1;
+        int lunarD = 1;
+        offset += 1;
+
+        for (int i = 0; i < 13; i++) {
+            int dm = GetBitInt(days, 1, 12 - i) == 1 ? 30 : 29;
+            if (offset > dm) {
+                lunarM++;
+                offset -= dm;
+            } else {
+                break;
+            }
+        }
+        lunarD = (int) (offset);
+        lunar.lunarYear = lunarY;
+        lunar.lunarMonth = lunarM;
+        lunar.isLeap = false;
+        if (leap != 0 && lunarM > leap) {
+            lunar.lunarMonth = lunarM - 1;
+            if (lunarM == leap + 1) {
+                lunar.isLeap = true;
+            }
+        }
+
+        lunar.lunarDay = lunarD;
+        return lunar;
+    }
+
+    public static class Lunar {
+        public boolean isLeap;
+        public int     lunarDay;
+        public int     lunarMonth;
+        public int     lunarYear;
+    }
+
+    public static class Solar {
+        public int solarDay;
+        public int solarMonth;
+        public int solarYear;
+    }
+}
+