android实现显示阳历和农历源码
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前些天在网上找阳历转农历的源码找了好久都找不到，但是幸运的是找到了李宁老师《Android/OPhone开发完全讲义》日历的源码
，但是可惜的是源码中农历的部分没有了。。
于是在网上找了个Java类的阳历转农历的类Lunar.java。
下面开始实现这功能。
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1. public class Lunar {
2. private int year;
3. private int month;
4. private int day;
5. private boolean leap;
6. final static String chineseNumber[] = {"一", "二", "三", "四", "五","六", "七", "八", "九", "十", "十一", "十二"};
7. static SimpleDateFormat chineseDateFormat = newSimpleDateFormat("yyyy年MM月dd日");
8. final static long[] lunarInfo = new long[]
9. {0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554,0x056a0, 0x09ad0, 0x055d2,
10. 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0,0x0ada2, 0x095b0, 0x14977,
11. 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60,0x09570, 0x052f2, 0x04970,
12. 0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3,0x092e0, 0x1c8d7, 0x0c950,
13. 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0,0x0d2b2, 0x0a950, 0x0b557,
14. 0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0,0x0a9a8, 0x0e950, 0x06aa0,
15. 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263,0x0d950, 0x05b57, 0x056a0,
16. 0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558,0x0b540, 0x0b5a0, 0x195a6,
17. 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40,0x0af46, 0x0ab60, 0x09570,
18. 0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0,0x0ab60, 0x096d5, 0x092e0,
19. 0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7,0x025d0, 0x092d0, 0x0cab5,
20. 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0,0x15176, 0x052b0, 0x0a930,
21. 0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0,0x0d260, 0x0ea65, 0x0d530,
22. 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6,0x0d250, 0x0d520, 0x0dd45,
23. 0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50,0x1b255, 0x06d20, 0x0ada0};
24.
25. //====== 传回农历 y年的总天数
26. final private static int yearDays(int y) {
27. int i, sum = 348;
28. for (i = 0x8000; i > 0x8; i>>= 1) {
29. if ((lunarInfo[y - 1900] & i) != 0) sum += 1;
30. }
31. return (sum + leapDays(y));
32. }
33.
34. //====== 传回农历 y年闰月的天数
35. final private static int leapDays(int y) {
36. if (leapMonth(y) != 0) {
37. if ((lunarInfo[y - 1900] & 0x10000) != 0)
38. return 30;
39. else
40. return 29;
41. } else
42. return 0;
43. }
44.
45. //====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
46. final private static int leapMonth(int y) {
47. return (int) (lunarInfo[y - 1900] & 0xf);
48. }
49.
50. //====== 传回农历 y年m月的总天数
51. final private static int monthDays(int y, int m) {
52. if ((lunarInfo[y - 1900] & (0x10000>> m)) == 0)
53. return 29;
54. else
55. return 30;
56. }
57.
58. //====== 传回农历 y年的生肖
59. final public String animalsYear() {
60. final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇","马", "羊", "猴", "鸡", "狗", "猪"};
61. return Animals[(year - 4) % 12];
62. }
63.
64. //====== 传入 月日的offset 传回干支, 0=甲子
65. final private static String cyclicalm(int num) {
66. final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己","庚", "辛", "壬", "癸"};
67. final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳","午", "未", "申", "酉", "戌", "亥"};
68. return (Gan[num % 10] + Zhi[num % 12]);
69. }
70.
71. //====== 传入 offset 传回干支, 0=甲子
72. final public String cyclical() {
73. int num = year - 1900 + 36;
74. return (cyclicalm(num));
75. }
76. public String getLunarMonthString() {
77. // TODO Auto-generated method stub
78. return null;
79. }
80.
81. public Lunar(Calendar cal) {
82. @SuppressWarnings("unused") int yearCyl, monCyl, dayCyl;
83. int leapMonth = 0;
84. Date baseDate = null;
85. try {
86. baseDate = chineseDateFormat.parse("1900年1月31日");
87. } catch (ParseException e) {
88. e.printStackTrace(); //To change body of catch statement useOptions | File Templates.
89. }
90.
91. //求出和1900年1月31日相差的天数
92. int offset = (int) ((cal.getTime().getTime() - baseDate.getTime())/ 86400000L);
93. dayCyl = offset + 40;
94. monCyl = 14;
95.
96. //用offset减去每农历年的天数
97. // 计算当天是农历第几天
98. //i最终结果是农历的年份
99. //offset是当年的第几天
100. int iYear, daysOfYear = 0;
101. for (iYear = 1900; iYear < 2050&& offset > 0;iYear++) {
102. daysOfYear = yearDays(iYear);
103. offset -= daysOfYear;
104. monCyl += 12;
105. }
106. if (offset < 0) {
107. offset += daysOfYear;
108. iYear--;
109. monCyl -= 12;
110. }
111. //农历年份
112. year = iYear;
113.
114. yearCyl = iYear - 1864;
115. leapMonth = leapMonth(iYear); //闰哪个月,1-12
116. leap = false;
117.
118. //用当年的天数offset,逐个减去每月（农历）的天数，求出当天是本月的第几天
119. int iMonth, daysOfMonth = 0;
120. for (iMonth = 1; iMonth < 13&& offset > 0;iMonth++) {
121. //闰月
122. if (leapMonth > 0 &&iMonth == (leapMonth + 1) && !leap){
123. --iMonth;
124. leap = true;
125. daysOfMonth = leapDays(year);
126. } else
127. daysOfMonth = monthDays(year, iMonth);
128.
129. offset -= daysOfMonth;
130. //解除闰月
131. if (leap && iMonth == (leapMonth +1)) leap = false;
132. if (!leap) monCyl++;
133. }
134. //offset为0时，并且刚才计算的月份是闰月，要校正
135. if (offset == 0 && leapMonth> 0 && iMonth ==leapMonth + 1) {
136. if (leap) {
137. leap = false;
138. } else {
139. leap = true;
140. --iMonth;
141. --monCyl;
142. }
143. }
144. //offset小于0时，也要校正
145. if (offset < 0) {
146. offset += daysOfMonth;
147. --iMonth;
148. --monCyl;
149. }
150. month = iMonth;
151. day = offset + 1;
152. }
153.
154. public static String getChinaDayString(int day) {
155. String chineseTen[] = {"初", "十", "廿", "三"};
156. int n = day % 10 == 0 ? 9 : day % 10 - 1;
157. if (day > 30)
158. return "";
159. if (day == 10)
160. return "初十";
161. else
162. return chineseTen[day / 10] + chineseNumber[n];
163. }
164.
165. public String toString() {
166. return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] +"月" + getChinaDayString(day);
167. }
168. }
（1）打印一个农历信息在TextView上
在Grid类的updateMsg方法添加以下代码：
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1. Lunar lunar = new Lunar(calendar);
2.
3. String lunarStr = "";
4. lunarStr=lunar.animalsYear()+"年(";
5. lunarStr +=lunar.cyclical()+"年)";
6. lunarStr +=lunar.toString();
7.
8. tvMsg3.setText(lunarStr);
Lunar lunar = new Lunar(calendar); String lunarStr = ""; lunarStr=lunar.animalsYear()+"年("; lunarStr +=lunar.cyclical()+"年)"; lunarStr +=lunar.toString(); tvMsg3.setText(lunarStr);
这样就能实现了，很简单吧！
（2）全部日期都显示农历信息，效果图如下：
同样在Grid类里的draw(Cavas cavas)方法中
在for (int i = 0; i < days.length;i++)循环前面添加以下代码：
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1. calendar.set(currentYear, currentMonth, currentDay);
2. SimpleDateFormat abc = new SimpleDateFormat("yyyy年MM月dd日");
calendar.set(currentYear, currentMonth, currentDay); SimpleDateFormat abc = new SimpleDateFormat("yyyy年MM月dd日");在for (int i = 0; i < days.length;i++)循环里添加以下代码：
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1. if (days[i].startsWith("*"))
2. {
3. // 下月
4. if (i > 20)
5. {
6. String nowday = currentYear + "年" + (currentMonth+2) + "月" + myText+ "日";
7. java.util.Calendar currentDay =java.util.Calendar.getInstance();
8. try {
9. //定义传入ChineseCalendar参数的格式
10. currentDay.setTime(abc.parse(nowday));
11. // System.out.println("currentDay:"+currentDay);
12. } catch (ParseException e) {
13. e.printStackTrace();
14. }
15. Lunar lunar = new Lunar(currentDay);
16. String currentDate = lunar.toString();
17. int startIndex = currentDate.length()-2;
18. //获取农历月份
19. String showMonth = currentDate.substring(startIndex-2,startIndex);
20. //获取农历的日
21. String showDay = currentDate.substring(startIndex);
22. //当农历的日为“初一时”，画出该天的月份
23. //否则画出该天农历的日
24. if (showDay.equals("初一")) {
25. canvas.drawText(showMonth, textLeft1, textTop1, paint);
26. } else {
27. canvas.drawText(showDay, textLeft1, textTop1, paint);
28. }
29. }
30. // 上月
31. else
32. {
33. String nowday = currentYear + "年" + (currentMonth) + "月" + myText +"日";
34. java.util.Calendar currentDay =java.util.Calendar.getInstance();
35. try {
36. //定义传入ChineseCalendar参数的格式
37. currentDay.setTime(abc.parse(nowday));
38. // System.out.println("currentDay:"+currentDay);
39. } catch (ParseException e) {
40. e.printStackTrace();
41. }
42. Lunar lunar = new Lunar(currentDay);
43. String currentDate = lunar.toString();
44. int startIndex = currentDate.length()-2;
45. //获取农历月份
46. String showMonth = currentDate.substring(startIndex-2,startIndex);
47. //获取农历的日
48. String showDay = currentDate.substring(startIndex);
49. //当农历的日为“初一时”，画出该天的月份
50. //否则画出该天农历的日
51. if (showDay.equals("初一")) {
52. canvas.drawText(showMonth, textLeft1, textTop1, paint);
53. } else {
54. canvas.drawText(showDay, textLeft1, textTop1, paint);
55. }
56. }
57. }else{
58. String nowday = currentYear + "年" + (currentMonth+1) + "月" + myText+ "日";
59. java.util.Calendar currentDay =java.util.Calendar.getInstance();
60. try {
61. //定义传入ChineseCalendar参数的格式
62. currentDay.setTime(abc.parse(nowday));
63. // System.out.println("currentDay:"+currentDay);
64. } catch (ParseException e) {
65. e.printStackTrace();
66. }
67. Lunar lunar = new Lunar(currentDay);
68. String currentDate = lunar.toString();
69. int startIndex = currentDate.length()-2;
70. //获取农历月份
71. String showMonth = currentDate.substring(startIndex-2,startIndex);
72. //获取农历的日
73. String showDay = currentDate.substring(startIndex);
74. //当农历的日为“初一时”，画出该天的月份
75. //否则画出该天农历的日
76. if (showDay.equals("初一")) {
77. canvas.drawText(showMonth, textLeft1, textTop1, paint);
78. } else {
79. canvas.drawText(showDay, textLeft1, textTop1, paint);
80. }
81. }
82. canvas.drawText(myText, textLeft, textTop, paint);