"Open language and texts"> at the top click "Formats">...">
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NSCalendar - Custom Calendar

In Mac OS X, if you go to system settings> "Date and time"> "Open language and texts"> at the top click "Formats">, and then, if you drop out for the calendar, there is an option for the copy calendar. How to display this calendar in Mac application?

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How to display this calendar in Mac application?

Well, what do you mean by a display? Do you just want to use the Coptic calendar in your calculations? If this is the case, then all you need is a suitable instance NSCalendar. Since NSCalendar(and friends) are supported by the ICU, you can use any identifier that supports the ICU (in the "Key / Type Definitions" section), which means that you can choose one of the following options:

  • gregorian - (default)
  • islamic - Astronomical Arabic
  • chinese - Traditional Chinese calendar
  • islamic-civil - Civil (algorithmic) Arabic calendar
  • hebrew - Traditional Jewish calendar
  • japanese - The imperial calendar (the same as the Gregorian, with the exception of the year, with one era for each emperor).
  • buddhist - Thai Buddhist calendar (same as Gregorian, except for a year).
  • persian - Persian calendar
  • coptic -
  • ethiopic -

, NSCalendar, :

NSCalendar *coptic = [[NSCalendar alloc] initWithCalendarIdentifier:@"coptic"];

, - (& agrave; la iCal), . , NSCalendar.

, , :

NSRange minMonthRange = [coptic minimumRangeOfUnit:NSMonthCalendarUnit]; // {1,13}
NSRange maxMonthRange = [coptic maximumRangeOfUnit:NSMonthCalendarUnit]; // {1,13}

, , 13 . , ?

NSRange minDayRange = [coptic minimumRangeOfUnit:NSDayCalendarUnit]; // {1,5}
NSRange maxDayRange = [coptic maximumRangeOfUnit:NSDayCalendarUnit]; // {1,30}

! , , 5 ! ( 30 ). , :

NSDateComponents *firstDayOfMonth = [[NSDateComponents alloc] init];
[firstDayOfMonth setDay:1];
for (NSInteger y = 1500; y < 1520; ++y) {
    [firstDayOfMonth setYear:y];
    for (NSInteger m = 1; m <= 13; ++m) {
        [firstDayOfMonth setMonth:m];

        NSDate *date = [coptic dateFromComponents:firstDayOfMonth];

        NSRange rangeOfDaysInMonth = [coptic rangeOfUnit:NSDayCalendarUnit inUnit:NSMonthCalendarUnit forDate:date];
        NSLog(@"%d - %d => %@", y, m, NSStringFromRange(rangeOfDaysInMonth));
    }
}

20 NSDate, . , , . ( , 1500 1520 - , )

:

1500 - 1 => {1, 30}
1500 - 2 => {1, 30}
1500 - 3 => {1, 30}
1500 - 4 => {1, 30}
1500 - 5 => {1, 30}
1500 - 6 => {1, 30}
1500 - 7 => {1, 30}
1500 - 8 => {1, 30}
1500 - 9 => {1, 30}
1500 - 10 => {1, 30}
1500 - 11 => {1, 30}
1500 - 12 => {1, 30}
1500 - 13 => {1, 5}
1501 - 1 => {1, 30}
1501 - 2 => {1, 30}
1501 - 3 => {1, 30}
1501 - 4 => {1, 30}
1501 - 5 => {1, 30}
1501 - 6 => {1, 30}
1501 - 7 => {1, 30}
1501 - 8 => {1, 30}
1501 - 9 => {1, 30}
1501 - 10 => {1, 30}
1501 - 11 => {1, 30}
1501 - 12 => {1, 30}
1501 - 13 => {1, 5}
1502 - 1 => {1, 30}
1502 - 2 => {1, 30}
1502 - 3 => {1, 30}
1502 - 4 => {1, 30}
1502 - 5 => {1, 30}
1502 - 6 => {1, 30}
1502 - 7 => {1, 30}
1502 - 8 => {1, 30}
1502 - 9 => {1, 30}
1502 - 10 => {1, 30}
1502 - 11 => {1, 30}
1502 - 12 => {1, 30}
1502 - 13 => {1, 5}
1503 - 1 => {1, 30}
1503 - 2 => {1, 30}
1503 - 3 => {1, 30}
1503 - 4 => {1, 30}
1503 - 5 => {1, 30}
1503 - 6 => {1, 30}
1503 - 7 => {1, 30}
1503 - 8 => {1, 30}
1503 - 9 => {1, 30}
1503 - 10 => {1, 30}
1503 - 11 => {1, 30}
1503 - 12 => {1, 30}
1503 - 13 => {1, 6}
1504 - 1 => {1, 30}
1504 - 2 => {1, 30}
1504 - 3 => {1, 30}
1504 - 4 => {1, 30}
1504 - 5 => {1, 30}
1504 - 6 => {1, 30}
1504 - 7 => {1, 30}
1504 - 8 => {1, 30}
1504 - 9 => {1, 30}
1504 - 10 => {1, 30}
1504 - 11 => {1, 30}
1504 - 12 => {1, 30}
1504 - 13 => {1, 5}
1505 - 1 => {1, 30}
1505 - 2 => {1, 30}
1505 - 3 => {1, 30}
1505 - 4 => {1, 30}
1505 - 5 => {1, 30}
1505 - 6 => {1, 30}
1505 - 7 => {1, 30}
1505 - 8 => {1, 30}
1505 - 9 => {1, 30}
1505 - 10 => {1, 30}
1505 - 11 => {1, 30}
1505 - 12 => {1, 30}
1505 - 13 => {1, 5}
1506 - 1 => {1, 30}
1506 - 2 => {1, 30}
1506 - 3 => {1, 30}
1506 - 4 => {1, 30}
1506 - 5 => {1, 30}
1506 - 6 => {1, 30}
1506 - 7 => {1, 30}
1506 - 8 => {1, 30}
1506 - 9 => {1, 30}
1506 - 10 => {1, 30}
1506 - 11 => {1, 30}
1506 - 12 => {1, 30}
1506 - 13 => {1, 5}
1507 - 1 => {1, 30}
1507 - 2 => {1, 30}
1507 - 3 => {1, 30}
1507 - 4 => {1, 30}
1507 - 5 => {1, 30}
1507 - 6 => {1, 30}
1507 - 7 => {1, 30}
1507 - 8 => {1, 30}
1507 - 9 => {1, 30}
1507 - 10 => {1, 30}
1507 - 11 => {1, 30}
1507 - 12 => {1, 30}
1507 - 13 => {1, 6}
1508 - 1 => {1, 30}
1508 - 2 => {1, 30}
1508 - 3 => {1, 30}
1508 - 4 => {1, 30}
1508 - 5 => {1, 30}
1508 - 6 => {1, 30}
1508 - 7 => {1, 30}
1508 - 8 => {1, 30}
1508 - 9 => {1, 30}
1508 - 10 => {1, 30}
1508 - 11 => {1, 30}
1508 - 12 => {1, 30}
1508 - 13 => {1, 5}
1509 - 1 => {1, 30}
1509 - 2 => {1, 30}
1509 - 3 => {1, 30}
1509 - 4 => {1, 30}
1509 - 5 => {1, 30}
1509 - 6 => {1, 30}
1509 - 7 => {1, 30}
1509 - 8 => {1, 30}
1509 - 9 => {1, 30}
1509 - 10 => {1, 30}
1509 - 11 => {1, 30}
1509 - 12 => {1, 30}
1509 - 13 => {1, 5}
1510 - 1 => {1, 30}
1510 - 2 => {1, 30}
1510 - 3 => {1, 30}
1510 - 4 => {1, 30}
1510 - 5 => {1, 30}
1510 - 6 => {1, 30}
1510 - 7 => {1, 30}
1510 - 8 => {1, 30}
1510 - 9 => {1, 30}
1510 - 10 => {1, 30}
1510 - 11 => {1, 30}
1510 - 12 => {1, 30}
1510 - 13 => {1, 5}
1511 - 1 => {1, 30}
1511 - 2 => {1, 30}
1511 - 3 => {1, 30}
1511 - 4 => {1, 30}
1511 - 5 => {1, 30}
1511 - 6 => {1, 30}
1511 - 7 => {1, 30}
1511 - 8 => {1, 30}
1511 - 9 => {1, 30}
1511 - 10 => {1, 30}
1511 - 11 => {1, 30}
1511 - 12 => {1, 30}
1511 - 13 => {1, 6}
1512 - 1 => {1, 30}
1512 - 2 => {1, 30}
1512 - 3 => {1, 30}
1512 - 4 => {1, 30}
1512 - 5 => {1, 30}
1512 - 6 => {1, 30}
1512 - 7 => {1, 30}
1512 - 8 => {1, 30}
1512 - 9 => {1, 30}
1512 - 10 => {1, 30}
1512 - 11 => {1, 30}
1512 - 12 => {1, 30}
1512 - 13 => {1, 5}
1513 - 1 => {1, 30}
1513 - 2 => {1, 30}
1513 - 3 => {1, 30}
1513 - 4 => {1, 30}
1513 - 5 => {1, 30}
1513 - 6 => {1, 30}
1513 - 7 => {1, 30}
1513 - 8 => {1, 30}
1513 - 9 => {1, 30}
1513 - 10 => {1, 30}
1513 - 11 => {1, 30}
1513 - 12 => {1, 30}
1513 - 13 => {1, 5}
1514 - 1 => {1, 30}
1514 - 2 => {1, 30}
1514 - 3 => {1, 30}
1514 - 4 => {1, 30}
1514 - 5 => {1, 30}
1514 - 6 => {1, 30}
1514 - 7 => {1, 30}
1514 - 8 => {1, 30}
1514 - 9 => {1, 30}
1514 - 10 => {1, 30}
1514 - 11 => {1, 30}
1514 - 12 => {1, 30}
1514 - 13 => {1, 5}
1515 - 1 => {1, 30}
1515 - 2 => {1, 30}
1515 - 3 => {1, 30}
1515 - 4 => {1, 30}
1515 - 5 => {1, 30}
1515 - 6 => {1, 30}
1515 - 7 => {1, 30}
1515 - 8 => {1, 30}
1515 - 9 => {1, 30}
1515 - 10 => {1, 30}
1515 - 11 => {1, 30}
1515 - 12 => {1, 30}
1515 - 13 => {1, 6}
1516 - 1 => {1, 30}
1516 - 2 => {1, 30}
1516 - 3 => {1, 30}
1516 - 4 => {1, 30}
1516 - 5 => {1, 30}
1516 - 6 => {1, 30}
1516 - 7 => {1, 30}
1516 - 8 => {1, 30}
1516 - 9 => {1, 30}
1516 - 10 => {1, 30}
1516 - 11 => {1, 30}
1516 - 12 => {1, 30}
1516 - 13 => {1, 5}
1517 - 1 => {1, 30}
1517 - 2 => {1, 30}
1517 - 3 => {1, 30}
1517 - 4 => {1, 30}
1517 - 5 => {1, 30}
1517 - 6 => {1, 30}
1517 - 7 => {1, 30}
1517 - 8 => {1, 30}
1517 - 9 => {1, 30}
1517 - 10 => {1, 30}
1517 - 11 => {1, 30}
1517 - 12 => {1, 30}
1517 - 13 => {1, 5}
1518 - 1 => {1, 30}
1518 - 2 => {1, 30}
1518 - 3 => {1, 30}
1518 - 4 => {1, 30}
1518 - 5 => {1, 30}
1518 - 6 => {1, 30}
1518 - 7 => {1, 30}
1518 - 8 => {1, 30}
1518 - 9 => {1, 30}
1518 - 10 => {1, 30}
1518 - 11 => {1, 30}
1518 - 12 => {1, 30}
1518 - 13 => {1, 5}
1519 - 1 => {1, 30}
1519 - 2 => {1, 30}
1519 - 3 => {1, 30}
1519 - 4 => {1, 30}
1519 - 5 => {1, 30}
1519 - 6 => {1, 30}
1519 - 7 => {1, 30}
1519 - 8 => {1, 30}
1519 - 9 => {1, 30}
1519 - 10 => {1, 30}
1519 - 11 => {1, 30}
1519 - 12 => {1, 30}
1519 - 13 => {1, 6}

, , 30 , 13- , () 5 . , 4 13- 6 . , . ! .

:

NSRange minHourRange = [coptic minimumRangeOfUnit:NSHourCalendarUnit]; // {0,24}
NSRange maxHourRange = [coptic maximumRangeOfUnit:NSHourCalendarUnit]; // {0,24}

, 24 ( ). {0,24} {0,24}, , 23 25 , DST).

(60 ).

, , , 13 , . , .

, .

( )

, , , , , NSDateFormatter:

NSDateFormatter *f = [[NSDateFormatter alloc] init];
NSCalendar *coptic = [[NSCalendar alloc] initWithCalendarIdentifier:@"coptic"];
[f setCalendar:coptic];
[f setDateStyle:NSDateFormatterLongStyle];

NSDate *rightNow = [NSDate date];
NSString *formattedDate = [f stringFromDate:rightNow];
NSLog(@"%@", formattedDate); // logs "Bashans 4, 1728"
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