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This article introduces how to use CalendarView control in Android to achieve date lunar calendar conversion, the content is very detailed, interested friends can refer to, hope to be helpful to you.

Create a new project named LunarDemo

Then create a java class in the sibling of MainActivity, named Lunar, and then use our core code in this class, which will be posted at the end.

Then we modify the layout file activity_main.xml first

First we change the layout of the layout to LinnerLayout and set it to the vertical layout (orientation= "vertical"), and then add a calendar control for CalendarView, a text box for TextView and a button for Button.

The idea is to use the date control to click to select the date, and then press the get Lunar Calendar button to display the current lunar date in the text box, and pop up a Toast prompt box to show what is the current year.

Then let's go back to MainActivity.java and take a look at the implementation.

Initialize the calendar with a Calendar, and then set the onSelectedDayChange event in the calendarview calendar control to modify the selected date. When you pass the button, call the Lunar class we just built, pass in the parameters of Calendar, and get the current farm day.

Generating effect

Core class

Public class Lunar {

Private int year

Private int month

Private int day

Private boolean leap

Final static String chineseNumber [] = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve"}

Static SimpleDateFormat chineseDateFormat = new SimpleDateFormat ("yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

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}

/ / = the total number of days returned to the y year of the lunar calendar

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))

}

/ / = returns the number of days of the leap month in the y year of the lunar calendar

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

}

/ / return lunar calendar y which leap month 1-12, no leap return 0

Final private static int leapMonth (int y) {

Return (int) (lunarInfo [y-1900] & 0xf)

}

/ / = the total number of days returned to the m-month of the y year of the lunar calendar

Final private static int monthDays (int y, int m) {

If ((lunarInfo [y-1900] & (0x10000 > > m)) = = 0)

Return 29

Else

Return 30

}

/ / return the zodiac in the y year of the lunar calendar

Final public String animalsYear () {

Final String [] Animals = new String [] {"rat", "cow", "tiger", "rabbit", "dragon", "snake", "horse", "sheep", "monkey", "chicken", "dog", "pig"}

Return Animals [(year-4)% 12]

}

/ / = the offset introduced on the day of the month is returned to the stem branch, 0 = Jiazi

Final private static String cyclicalm (int num) {

Final String [] Gan = new String [] {"A", "B", "C", "D", "E", "ji", "Geng", "Xin", "ren", "Gui"}

Final String [] Zhi = new String [] {"Zi", "ugly", "Yin", "Mao", "Chen", "si", "noon", "Wei", "Shen", "you", "Xu", "Hai"}

Return (Gan [num% 10] + Zhi [num% 12])

}

/ / = input offset and return stem branch, 0 = Jiazi

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 ("31 January 1900")

} catch (ParseException e) {

E.printStackTrace (); / / To change body of catch statement use Options | File Templates.

}

/ / find out the number of days that differ from January 31, 1900

Int offset = (int) ((cal.getTime (). GetTime ()-baseDate.getTime ()) / 86400000L)

DayCyl = offset + 40

MonCyl = 14

/ / subtract the number of days per lunar year with offset

/ / calculate what day it is in the lunar calendar.

/ / the final result is the year of the lunar calendar

/ / offset is the day of the year

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; } //农历年份 year = iYear; yearCyl = iYear - 1864; leapMonth = leapMonth(iYear); //闰哪个月,1-12 leap = false; //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 int iMonth, daysOfMonth = 0; for (iMonth = 1; iMonth < 13 && offset >

0; iMonth++) {

/ / Leap month

If (leapMonth > 0 & & iMonth = (leapMonth + 1) & &! leap) {

-- iMonth

Leap = true

DaysOfMonth = leapDays (year)

} else

DaysOfMonth = monthDays (year, iMonth)

Offset-= daysOfMonth

/ / release of leap months

If (leap & & iMonth = = (leapMonth + 1)) leap = false

If (! leap) monCyl++

}

/ / offset is 0, and the month just calculated is a leap month, which needs to be corrected.

If (offset = = 0 & & leapMonth > 0 & & iMonth = = leapMonth + 1) {

If (leap) {

Leap = false

} else {

Leap = true

-- iMonth

-- monCyl

}

}

/ / when offset is less than 0, it should also be corrected.

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 "the Tenth year of junior high school"

Else

Return chineseTen [day / 10] + chineseNumber [n]

}

Public String toString () {

Return (leap? "Leap": ") + chineseNumber [month-1] +" month "+ getChinaDayString (day)

}

}

On how to use CalendarView controls in Android to achieve date lunar calendar conversion is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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