将公历日期转换为回历日期 [英] Convert gregorian date to Hijri date

问题描述

源代码来自:

快速回历(伊斯兰)日历التاريخالهجري

如何将字符串日期转换为NSDate?

我只是将它们放在一起，但是输出有一些错误.

I just put them together but it has some mistake with the output.

let dateFormatter = NSDateFormatter()

dateFormatter.dateFormat = "YYYY-MM-DD"

let GregorianDate = dateFormatter.dateFromString("\(Yeartext1.text!)-\(Monthtext1.text!)-\(Daytext1.text!)")

let islamic = NSCalendar(identifier: NSIslamicCalendar)

let components = islamic?.components(NSCalendarUnit(rawValue: UInt.max), fromDate: GregorianDate!)

resultlable.text = "\(components!.year) - \(components!.month) - \(components!.day)"

例如，用户将输入一个公历日期(2015/09/29)，并应显示回历年(1436/12/15)，但这不起作用.

For example, the user will enter a gregorian date (2015/09/29) and it should show the Hijri year (1436/12/15) but this doesn't work.

推荐答案

Yeartext1，Monthtext1和Monthtext1是UITextField

Yeartext1 , Monthtext1 and Monthtext1 are UITextField

可生成的是UILabel

resultlable is UILabel

    let dateFormatter = NSDateFormatter()

    dateFormatter.dateFormat = "dd-MM-yyyy"

    let GregorianDate = dateFormatter.dateFromString("\(Daytext1.text!)-\(Monthtext1.text!)-\(Yeartext1.text!)")

    let islamic = NSCalendar(identifier: NSCalendarIdentifierIslamicUmmAlQura)

    let components = islamic?.components(NSCalendarUnit(rawValue: UInt.max), fromDate: GregorianDate!)

    resultlable.text = "\(components!.year) - \(components!.month) - \(components!.day)"

它需要一个公历2015年5月10日，并且会给您伊斯兰日期1436年12月22日

It will take an Gregorian Date 5-10-2015 and it will give you the islamic date 1436 - 12 - 22

*一天出错的可能性很小

*There is a small probability of one day error

您可以检查此转换器 http://www.islamicfinder.org/Hcal/hdate_next.php

you can check this converter http://www.islamicfinder.org/Hcal/hdate_next.php

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