android 农历源码,android实现显示阳历和农历源码
前些天在網上找陽歷轉農歷的源碼找了好久都找不到，但是幸運的是找到了李寧老師《Android/OPhone開發完全講義》日歷的源碼
，但是可惜的是源碼中農歷的部分沒有了。。
于是在網上找了個Java類的陽歷轉農歷的類Lunar.java。
下面開始實現這功能。
Lunar.java類：
public class Lunar {
private int year;
private int month;
private int day;
private boolean leap;
final static String chineseNumber[] = {"一", "二", "三", "四", "五","六", "七", "八", "九", "十", "十一", "十二"};
static SimpleDateFormat chineseDateFormat = newSimpleDateFormat("yyyy年MM月dd日");
final static long[] lunarInfo = new long[]
{0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554,0x056a0, 0x09ad0, 0x055d2,
0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0,0x0ada2, 0x095b0, 0x14977,
0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60,0x09570, 0x052f2, 0x04970,
0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3,0x092e0, 0x1c8d7, 0x0c950,
0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0,0x0d2b2, 0x0a950, 0x0b557,
0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0,0x0a9a8, 0x0e950, 0x06aa0,
0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263,0x0d950, 0x05b57, 0x056a0,
0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558,0x0b540, 0x0b5a0, 0x195a6,
0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40,0x0af46, 0x0ab60, 0x09570,
0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0,0x0ab60, 0x096d5, 0x092e0,
0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7,0x025d0, 0x092d0, 0x0cab5,
0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0,0x15176, 0x052b0, 0x0a930,
0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0,0x0d260, 0x0ea65, 0x0d530,
0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6,0x0d250, 0x0d520, 0x0dd45,
0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50,0x1b255, 0x06d20, 0x0ada0};
//====== 傳回農歷 y年的總天數
final private static int yearDays(int y) {
int i, sum = 348;
for (i = 0x8000; i > 0x8; i>>= 1) {
if ((lunarInfo[y - 1900] & i) != 0) sum += 1;
}
return (sum + leapDays(y));
}
//====== 傳回農歷 y年閏月的天數
final private static int leapDays(int y) {
if (leapMonth(y) != 0) {
if ((lunarInfo[y - 1900] & 0x10000) != 0)
return 30;
else
return 29;
} else
return 0;
}
//====== 傳回農歷 y年閏哪個月 1-12 , 沒閏傳回 0
final private static int leapMonth(int y) {
return (int) (lunarInfo[y - 1900] & 0xf);
}
//====== 傳回農歷 y年m月的總天數
final private static int monthDays(int y, int m) {
if ((lunarInfo[y - 1900] & (0x10000>> m)) == 0)
return 29;
else
return 30;
}
//====== 傳回農歷 y年的生肖
final public String animalsYear() {
final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龍", "蛇","馬", "羊", "猴", "雞", "狗", "豬"};
return Animals[(year - 4) % 12];
}
//====== 傳入 月日的offset 傳回干支, 0=甲子
final private static String cyclicalm(int num) {
final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己","庚", "辛", "壬", "癸"};
final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳","午", "未", "申", "酉", "戌", "亥"};
return (Gan[num % 10] + Zhi[num % 12]);
}
//====== 傳入 offset 傳回干支, 0=甲子
final public String cyclical() {
int num = year - 1900 + 36;
return (cyclicalm(num));
}
public String getLunarMonthString() {
// TODO Auto-generated method stub
return null;
}
public Lunar(Calendar cal) {
@SuppressWarnings("unused") int yearCyl, monCyl, dayCyl;
int leapMonth = 0;
Date baseDate = null;
try {
baseDate = chineseDateFormat.parse("1900年1月31日");
} catch (ParseException e) {
e.printStackTrace(); //To change body of catch statement useOptions | File Templates.
}
//求出和1900年1月31日相差的天數
int offset = (int) ((cal.getTime().getTime() - baseDate.getTime())/ 86400000L);
dayCyl = offset + 40;
monCyl = 14;
//用offset減去每農歷年的天數
// 計算當天是農歷第幾天
//i最終結果是農歷的年份
//offset是當年的第幾天
int iYear, daysOfYear = 0;
for (iYear = 1900; iYear < 2050&& offset > 0;iYear++) {
daysOfYear = yearDays(iYear);
offset -= daysOfYear;
monCyl += 12;
}
if (offset < 0) {
offset += daysOfYear;
iYear--;
monCyl -= 12;
}
//農歷年份
year = iYear;
yearCyl = iYear - 1864;
leapMonth = leapMonth(iYear); //閏哪個月,1-12
leap = false;
//用當年的天數offset,逐個減去每月(農歷)的天數，求出當天是本月的第幾天
int iMonth, daysOfMonth = 0;
for (iMonth = 1; iMonth < 13&& offset > 0;iMonth++) {
//閏月
if (leapMonth > 0 &&iMonth == (leapMonth + 1) && !leap){
--iMonth;
leap = true;
daysOfMonth = leapDays(year);
} else
daysOfMonth = monthDays(year, iMonth);
offset -= daysOfMonth;
//解除閏月
if (leap && iMonth == (leapMonth +1)) leap = false;
if (!leap) monCyl++;
}
//offset為0時，并且剛才計算的月份是閏月，要校正
if (offset == 0 && leapMonth> 0 && iMonth ==leapMonth + 1) {
if (leap) {
leap = false;
} else {
leap = true;
--iMonth;
--monCyl;
}
}
//offset小于0時，也要校正
if (offset < 0) {
offset += daysOfMonth;
--iMonth;
--monCyl;
}
month = iMonth;
day = offset + 1;
}
public static String getChinaDayString(int day) {
String chineseTen[] = {"初", "十", "廿", "三"};
int n = day % 10 == 0 ? 9 : day % 10 - 1;
if (day > 30)
return "";
if (day == 10)
return "初十";
else
return chineseTen[day / 10] + chineseNumber[n];
}
public String toString() {
return year + "年" + (leap ? "閏" : "") + chineseNumber[month - 1] +"月" + getChinaDayString(day);
}
}
(1)打印一個農歷信息在TextView上
在Grid類的updateMsg方法添加以下代碼：
Lunar lunar = new Lunar(calendar);
String lunarStr = "";
lunarStr=lunar.animalsYear()+"年(";
lunarStr +=lunar.cyclical()+"年)";
lunarStr +=lunar.toString();
tvMsg3.setText(lunarStr);這樣就能實現了，很簡單吧！
(2)全部日期都顯示農歷信息，效果圖如下：
同樣在Grid類里的draw(Cavas cavas)方法中
在for (int i = 0; i < days.length;i++)循環前面添加以下代碼：
calendar.set(currentYear, currentMonth, currentDay);
SimpleDateFormat abc = new SimpleDateFormat("yyyy年MM月dd日");在for (int i = 0; i < days.length;i++)循環里添加以下代碼：
if (days[i].startsWith("*"))
{
// 下月
if (i > 20)
{
String nowday = currentYear + "年" + (currentMonth+2) + "月" + myText+ "日";
java.util.Calendar currentDay =java.util.Calendar.getInstance();
try {
//定義傳入ChineseCalendar參數的格式
currentDay.setTime(abc.parse(nowday));
// System.out.println("currentDay:"+currentDay);
} catch (ParseException e) {
e.printStackTrace();
}
Lunar lunar = new Lunar(currentDay);
String currentDate = lunar.toString();
int startIndex = currentDate.length()-2;
//獲取農歷月份
String showMonth = currentDate.substring(startIndex-2,startIndex);
//獲取農歷的日
String showDay = currentDate.substring(startIndex);
//當農歷的日為“初一時”，畫出該天的月份
//否則畫出該天農歷的日
if (showDay.equals("初一")) {
canvas.drawText(showMonth, textLeft1, textTop1, paint);
} else {
canvas.drawText(showDay, textLeft1, textTop1, paint);
}
}
// 上月
else
{
String nowday = currentYear + "年" + (currentMonth) + "月" + myText +"日";
java.util.Calendar currentDay =java.util.Calendar.getInstance();
try {
//定義傳入ChineseCalendar參數的格式
currentDay.setTime(abc.parse(nowday));
// System.out.println("currentDay:"+currentDay);
} catch (ParseException e) {
e.printStackTrace();
}
Lunar lunar = new Lunar(currentDay);
String currentDate = lunar.toString();
int startIndex = currentDate.length()-2;
//獲取農歷月份
String showMonth = currentDate.substring(startIndex-2,startIndex);
//獲取農歷的日
String showDay = currentDate.substring(startIndex);
//當農歷的日為“初一時”，畫出該天的月份
//否則畫出該天農歷的日
if (showDay.equals("初一")) {
canvas.drawText(showMonth, textLeft1, textTop1, paint);
} else {
canvas.drawText(showDay, textLeft1, textTop1, paint);
}
}
}else{
String nowday = currentYear + "年" + (currentMonth+1) + "月" + myText+ "日";
java.util.Calendar currentDay =java.util.Calendar.getInstance();
try {
//定義傳入ChineseCalendar參數的格式
currentDay.setTime(abc.parse(nowday));
// System.out.println("currentDay:"+currentDay);
} catch (ParseException e) {
e.printStackTrace();
}
Lunar lunar = new Lunar(currentDay);
String currentDate = lunar.toString();
int startIndex = currentDate.length()-2;
//獲取農歷月份
String showMonth = currentDate.substring(startIndex-2,startIndex);
//獲取農歷的日
String showDay = currentDate.substring(startIndex);
//當農歷的日為“初一時”，畫出該天的月份
//否則畫出該天農歷的日
if (showDay.equals("初一")) {
canvas.drawText(showMonth, textLeft1, textTop1, paint);
} else {
canvas.drawText(showDay, textLeft1, textTop1, paint);
}
}
canvas.drawText(myText, textLeft, textTop, paint);
總結
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