如何将此字符串“2016-04-14T10:44:00+0000”转换为NSDate并只保留年、月、日、小时?
中间的T真的让我在处理日期时不习惯。
当前回答
在swift4,
var Msg_Date_ = "2019-03-30T05:30:00+0000"
let dateFormatterGet = DateFormatter()
dateFormatterGet.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
let dateFormatterPrint = DateFormatter()
dateFormatterPrint.dateFormat = "MMM dd yyyy h:mm a" //"MMM d, h:mm a" for Sep 12, 2:11 PM
let datee = dateFormatterGet.date(from: Msg_Date_)
Msg_Date_ = dateFormatterPrint.string(from: datee ?? Date())
print(Msg_Date_)
//输出:- 2019年3月30日05:30 PM
其他回答
我对这种格式也很着迷。
请参阅下面的解决方案。
你的字符串来自你的背部或其他来源:
let isoDate = "2020-05-06 20:00:00-03"
识别日期格式
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "en_US_POSIX")
dateFormatter.dateFormat = "yyyy-MM-dd' 'HH:mm:ssZ"
let date = dateFormatter.date(from:isoDate)!
现在您已经将日期设置为date()，您可以使用formatDate.string将其更改为您想要的任何格式
let formatDate = DateFormatter()
formatDate.dateFormat = "dd/MM/yyyy HH:mm"
let drawDate = formatDate.string(from: date)
print(drawDate)
输出:
06/05/2020 20:00
嗨，你有单独的T格式，然后转换为你喜欢
// create dateFormatter with UTC time format
let dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
dateFormatter.timeZone = NSTimeZone(name: "UTC")
let date = dateFormatter.dateFromString("2015-04-01T11:42:00")
// change to a readable time format and change to local time zone
dateFormatter.dateFormat = "EEE, MMM d, yyyy - h:mm a"
dateFormatter.timeZone = NSTimeZone.localTimeZone()
let timeStamp = dateFormatter.stringFromDate(date!)
在swift4,
var Msg_Date_ = "2019-03-30T05:30:00+0000"
let dateFormatterGet = DateFormatter()
dateFormatterGet.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
let dateFormatterPrint = DateFormatter()
dateFormatterPrint.dateFormat = "MMM dd yyyy h:mm a" //"MMM d, h:mm a" for Sep 12, 2:11 PM
let datee = dateFormatterGet.date(from: Msg_Date_)
Msg_Date_ = dateFormatterPrint.string(from: datee ?? Date())
print(Msg_Date_)
//输出:- 2019年3月30日05:30 PM
在swift中使用字符串扩展将字符串转换为日期 Swift - 5.0
extension String {
public enum DateFormatType {
/// The ISO8601 formatted year "yyyy" i.e. 1997
case isoYear
/// The ISO8601 formatted year and month "yyyy-MM" i.e. 1997-07
case isoYearMonth
/// The ISO8601 formatted date "yyyy-MM-dd" i.e. 1997-07-16
case isoDate
/// The ISO8601 formatted date and time "yyyy-MM-dd'T'HH:mmZ" i.e. 1997-07-16T19:20+01:00
case isoDateTime
/// The ISO8601 formatted date, time and sec "yyyy-MM-dd'T'HH:mm:ssZ" i.e. 1997-07-16T19:20:30+01:00
case isoDateTimeSec
/// The ISO8601 formatted date, time and millisec "yyyy-MM-dd'T'HH:mm:ss.SSSZ" i.e. 1997-07-16T19:20:30.45+01:00
case isoDateTimeMilliSec
/// The dotNet formatted date "/Date(%d%d)/" i.e. "/Date(1268123281843)/"
case dotNet
/// The RSS formatted date "EEE, d MMM yyyy HH:mm:ss ZZZ" i.e. "Fri, 09 Sep 2011 15:26:08 +0200"
case rss
/// The Alternative RSS formatted date "d MMM yyyy HH:mm:ss ZZZ" i.e. "09 Sep 2011 15:26:08 +0200"
case altRSS
/// The http header formatted date "EEE, dd MM yyyy HH:mm:ss ZZZ" i.e. "Tue, 15 Nov 1994 12:45:26 GMT"
case httpHeader
/// A generic standard format date i.e. "EEE MMM dd HH:mm:ss Z yyyy"
case standard
/// A custom date format string
case custom(String)
/// The local formatted date and time "yyyy-MM-dd HH:mm:ss" i.e. 1997-07-16 19:20:00
case localDateTimeSec
/// The local formatted date "yyyy-MM-dd" i.e. 1997-07-16
case localDate
/// The local formatted time "hh:mm a" i.e. 07:20 am
case localTimeWithNoon
/// The local formatted date and time "yyyyMMddHHmmss" i.e. 19970716192000
case localPhotoSave
case birthDateFormatOne
case birthDateFormatTwo
///
case messageRTetriveFormat
///
case emailTimePreview
var stringFormat:String {
switch self {
//handle iso Time
case .birthDateFormatOne: return "dd/MM/YYYY"
case .birthDateFormatTwo: return "dd-MM-YYYY"
case .isoYear: return "yyyy"
case .isoYearMonth: return "yyyy-MM"
case .isoDate: return "yyyy-MM-dd"
case .isoDateTime: return "yyyy-MM-dd'T'HH:mmZ"
case .isoDateTimeSec: return "yyyy-MM-dd'T'HH:mm:ssZ"
case .isoDateTimeMilliSec: return "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
case .dotNet: return "/Date(%d%f)/"
case .rss: return "EEE, d MMM yyyy HH:mm:ss ZZZ"
case .altRSS: return "d MMM yyyy HH:mm:ss ZZZ"
case .httpHeader: return "EEE, dd MM yyyy HH:mm:ss ZZZ"
case .standard: return "EEE MMM dd HH:mm:ss Z yyyy"
case .custom(let customFormat): return customFormat
//handle local Time
case .localDateTimeSec: return "yyyy-MM-dd HH:mm:ss"
case .localTimeWithNoon: return "hh:mm a"
case .localDate: return "yyyy-MM-dd"
case .localPhotoSave: return "yyyyMMddHHmmss"
case .messageRTetriveFormat: return "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
case .emailTimePreview: return "dd MMM yyyy, h:mm a"
}
}
}
func toDate(_ format: DateFormatType = .isoDate) -> Date?{
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = format.stringFormat
let date = dateFormatter.date(from: self)
return date
}
}
我们用like
string.toDate(.isoDate)
"1997-05-24".toDate(.isoDate)
Swift 3.0 - 4.2
import Foundation
extension String {
func toDate(withFormat format: String = "yyyy-MM-dd HH:mm:ss")-> Date?{
let dateFormatter = DateFormatter()
dateFormatter.timeZone = TimeZone(identifier: "Asia/Tehran")
dateFormatter.locale = Locale(identifier: "fa-IR")
dateFormatter.calendar = Calendar(identifier: .gregorian)
dateFormatter.dateFormat = format
let date = dateFormatter.date(from: self)
return date
}
}
extension Date {
func toString(withFormat format: String = "EEEE ، d MMMM yyyy") -> String {
let dateFormatter = DateFormatter()
dateFormatter.locale = Locale(identifier: "fa-IR")
dateFormatter.timeZone = TimeZone(identifier: "Asia/Tehran")
dateFormatter.calendar = Calendar(identifier: .persian)
dateFormatter.dateFormat = format
let str = dateFormatter.string(from: self)
return str
}
}
