Hijri (islamic) calendar in swift التاريخ الهجري - ios

Question

can someone help me please
I'm trying to create an IOS app using Swift language and I need to use Hijri (islamic) calendar
I tried many time but I failed :(
this is my try
let datenow = NSDate()
let calendar = NSCalendar.currentCalendar()
let components = calendar.components(NSCalendarUnit(UInt.max), fromDate: datenow)
var gregorian = NSCalendar(identifier:NSIslamicCivilCalendar)
var date = gregorian.dateFromComponents(components)
println(date)
and the output is wrong
2576-04-25 09:05:08 +0000
We are in year 1434 in hijri not 2576 !

Answer 1

You're mixing up the calendars, dates & components:
let datenow = NSDate()
// This is a point in time, independent of calendars
let calendar = NSCalendar.currentCalendar()
// System calendar, likely Gregorian
let components = calendar.components(NSCalendarUnit(UInt.max), fromDate: datenow)
// Gregorian components
println("\(components.year)") // "2014"
var islamic = NSCalendar(identifier:NSIslamicCivilCalendar)! // Changed the variable name
// *** Note also NSCalendar(identifier:) now returns now returns an optional ***
var date = islamic.dateFromComponents(components)
// so you have asked to initialise the date as AH 2014
println(date)
// This is a point in time again, sometime in AH 2014, or AD 2576
What you need to do is simply:
let datenow = NSDate()
let islamic = NSCalendar(identifier:NSIslamicCivilCalendar)!
let components = islamic.components(NSCalendarUnit(UInt.max), fromDate: datenow)
println("Date in system calendar:\(datenow), in Hijri:\(components.year)-\(components.month)-\(components.day)")
//"Date in system calendar:2014-09-25 09:53:00 +0000, in Hijri:1435-11-30"
To get a formatted string, rather than just the integer components, you need to use NSDateFormatter, which will allow you to specify the calendar & date as well as the format. See here.
Update
To simply transliterate the numerals to (Eastern) Arabic numerals (as 0...9 are referred to as (Western) Arabic numerals to distinguish them from, say, Roman numerals), as requested, you could use:
let sWesternArabic = "\(components.day)-\(components.month)-\(components.year)"
let substituteEasternArabic = ["0":"٠", "1":"١", "2":"٢", "3":"٣", "4":"٤", "5":"٥", "6":"٦", "7":"٧", "8":"٨", "9":"٩"]
var sEasternArabic = ""
for i in sWesternArabic {
if let subs = substituteEasternArabic[String(i)] { // String(i) needed as i is a character
sEasternArabic += subs
} else {
sEasternArabic += String(i)
}
}
println("Western Arabic numerals = \(sWesternArabic), Eastern Arabic numerals = \(sEasternArabic)")

Answer 2

Get Hajri Date:
Swift :
let dateFor = DateFormatter()
let hijriCalendar = Calendar.init(identifier: Calendar.Identifier.islamicCivil)
dateFor.locale = Locale.init(identifier: "ar") // or "en" as you want to show numbers
dateFor.calendar = hijriCalendar
dateFor.dateFormat = "dd/MM/yyyy"
print(dateFor.string(from: Date()))
Obj-C :
NSCalendar *hijriCalendar2 = [[NSCalendar alloc]initWithCalendarIdentifier:NSCalendarIdentifierIslamicCivil];
NSDateFormatter * lastDate = [[NSDateFormatter alloc]init];
lastDate.calendar = hijriCalendar2;
[lastDate setDateFormat:#"dd/MM/yyyy HH:mm:ss"];
NSString * dateString = [lastDate stringFromDate:[NSDate date]];

Answer 3

thank you #Grimxn and I also find a great way to show arabic numbers
let formatter = NSNumberFormatter()
formatter.locale = NSLocale(localeIdentifier: "ar_SA")
var date:String = "\(formatter.stringFromNumber(components.year))-\(formatter.stringFromNumber(components.month))-\(formatter.stringFromNumber(components.day))"
it will print ١-١١-١٤٣٤

Answer 4

Swift 3 & 4
let dateNow = DateFormatter()
let islamicCalendar = Calendar.init(identifier: Calendar.Identifier.islamicCivil)
dateNow.calendar = islamicCalendar
dateNow.locale = Locale.init(identifier: "ar_SA") // This is used to show numbers, day and month in arabic letters
dateNow.dateFormat = "EEE dd MMM yyyy"
print("\(dateNow.string(from: Date()))")
find out and place date format from:
http://userguide.icu-project.org/formatparse/datetime

Answer 5

Swift 5:
let hijriCalendar = Calendar(identifier: .islamicCivil)
let formatter = DateFormatter()
formatter.locale = Locale(identifier: "ar")
formatter.calendar = hijriCalendar
formatter.dateFormat = "dd/MM/yyyy"
print(formatter.string(from: Date()))