iOS Swift将日历组件int月份转换为中等样式字符串月份

Question

我想以这种格式显示日历

给用户.一种选择是使用"字符串范围"来获取各个日历组件.第二个是使用NSCalendar来获取它对我来说看起来更好(是吗？).所以我的代码如下.但是有两个问题.

1. 我没有得到当地时间表"小时和分钟组件"
2. 我正在进入Int.我希望它在String中(月份在mediumStyle中)

任何人都知道如何得到我需要的东西？附加图像是我想要实现的目标.在那里,我使用三个UILabel用于"日期",第二个用于"月,年",第三个用于"时间".

任何帮助,将不胜感激.

var inputDateString = "Jun/12/2015 02:05 Am +05:00"

override func viewDidLoad() {
    super.viewDidLoad()
    let newDate = dateformatterDateString(inputDateString)
    let calendar = NSCalendar.currentCalendar()
    let components = calendar.components(.CalendarUnitHour | .CalendarUnitMinute | .CalendarUnitMonth | .CalendarUnitYear | .CalendarUnitDay, fromDate: newDate!)

    let hour = components.hour
    let minutes = components.minute
    let month = components.month
    let year = components.year
    let day = components.day

    println(newDate)
    println(components)
    println(day)     // 12
    println(month)   // 6 -----> Want to have "Jun" here
    println(year)    // 2015
    println(hour)    // 2 ------> Want to have the hour in the inputString i.e. 02
    println(minutes) // 35 ------> Want to have the minute in the inputString i.e.  05
}

func dateformatterDateString(dateString: String) -> NSDate? {
    let dateFormatter: NSDateFormatter = NSDateFormatter()
    dateFormatter.dateFormat = "MMM/dd/yyyy hh:mm a Z"
    //      dateFormatter.timeZone = NSTimeZone(abbreviation: "UTC")
    dateFormatter.timeZone = NSTimeZone.localTimeZone()
    return dateFormatter.dateFromString(dateString)
}

Answer 1

您可以使用DateFormatter,如下所示:

extension Formatter {
    static let monthMedium: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateFormat = "LLL"
        return formatter
    }()
    static let hour12: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateFormat = "h"
        return formatter
    }()
    static let minute0x: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateFormat = "mm"
        return formatter
    }()
    static let amPM: DateFormatter = {
        let formatter = DateFormatter()
        formatter.dateFormat = "a"
        return formatter
    }()
}
extension Date {
    var monthMedium: String  { return Formatter.monthMedium.string(from: self) }
    var hour12:  String      { return Formatter.hour12.string(from: self) }
    var minute0x: String     { return Formatter.minute0x.string(from: self) }
    var amPM: String         { return Formatter.amPM.string(from: self) }
}

let date = Date()

let dateMonth  = date.monthMedium  // "May"
let dateHour   = date.hour12       // "1"
let dateMinute = date.minute0x     // "18"
let dateAmPm = date.amPM           // "PM"

Answer 2

NSDateFormatter有 monthSymbols,shortMonthSymbols而且veryShortSymbols性质.

试试这个:

let dateFormatter: NSDateFormatter = NSDateFormatter()

let months = dateFormatter.shortMonthSymbols
let monthSymbol = months[month-1] as! String // month - from your date components

println(monthSymbol)