从日期字符串中分别获取月份和日期

Question

我有一个这种格式的日期..

2019-12-16 18:30:00 +0000

这是我的代码..

 var utcTime = "\(dic["dueDate"]!)"
 self.dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
 self.dateFormatter.locale = Locale(identifier: "en_US")
 let date = self.dateFormatter.date(from:utcTime)!
 print(date)

我想从这个字符串中提取月份和日期。 即从上面的日期字符串，我想要 'December' 和 '16' 分开。

Answer 1

有几种方法可以获得预期的结果，作为一个选项，您可以将此代码与Calendar ：

let utcTime = "2020-01-17T22:01:00"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
dateFormatter.locale = Locale(identifier: "en_US")

if let date = dateFormatter.date(from:utcTime) {
    let monthInt = Calendar.current.component(.month, from: date)
    let dayInt = Calendar.current.component(.day, from: date)
    let monthStr = Calendar.current.monthSymbols[monthInt-1]
    print(monthStr, dayInt)
}

Answer 2

欢迎使用堆栈溢出。 你可以试试这个：

let calendar = Calendar.current
calendar.component(.year, from: date)
calendar.component(.month, from: date)
calendar.component(.day, from: date) 

希望能帮助到你...

Answer 3

斯威夫特 5

这是您需要的扩展它返回具有您想要的月份和日期的元组

extension Date {
    func getMonthAndDate() ->(month:String , day:String) {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "MMMM"

        let month = dateFormatter.string(from: self)

        dateFormatter.dateFormat = "dd"

        let day = dateFormatter.string(from: self)

        return (month,day)
    }
}

Answer 4

欢迎使用堆栈溢出。 请试试这个。

func getMonthAndDate(dateString: String) ->(month:String , day:String) {

        guard let date = Date.getMonthAndDate(from: dateString, with: "yyyy-MM-dd'T'HH:mm:ss") else {
            return ("","")
        }
             let dateFormatter = DateFormatter()
             dateFormatter.dateFormat = "MMMM"

             let month = dateFormatter.string(from: date)

             dateFormatter.dateFormat = "dd"

             let day = dateFormatter.string(from: date)

             return (month,day)
         }

extension Date {
    static func getMonthAndDate(from str: String, with formatter: String) -> Date? {
           let dateFormatter = DateFormatter()
           dateFormatter.timeZone = TimeZone.current//(abbreviation: "GMT") //Set timezone that you want
           dateFormatter.locale = NSLocale.current
           dateFormatter.dateFormat = formatter //Specify your format that you want
           return dateFormatter.date(from: str)
       }
}

Answer 5

我给你月份的例子你可以分别获得日期和月份值，访问你的格式的链接http://userguide.icu-project.org/formatparse/datetime

   extension Date {
        var month: String {
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "MMMM"
            return dateFormatter.string(from: self)
        }    
    }

你可以这样使用它：

let date = Date()
 let monthString = date.month

为约会尝试同样的事情，我希望它对你有用... :)

Answer 6

这是您代码中的一个示例。 我将月份和日期存储在单独的字符串中以向您展示。 您可以根据您的要求进行更改。

var utcTime = "2019-12-16 18:30:00 +0000"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss z"
dateFormatter.locale = Locale(identifier: "en_US")
let date = dateFormatter.date(from:utcTime)!
print(date) //2019-12-16 18:30:00 +0000

dateFormatter.dateFormat = "MMMM"
let strMonth = dateFormatter.string(from: date)
print(strMonth) //December

dateFormatter.dateFormat = "dd"
let strDay = dateFormatter.string(from: date)
print(strDay) //16

您也可以使用Calendar对象来获取日期、月份（以数字形式提供）和年份。

var utcTime = "2019-12-16 18:30:00 +0000"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss z"
dateFormatter.locale = Locale(identifier: "en_US")
let date = dateFormatter.date(from:utcTime)!

let calendarDate = Calendar.current.dateComponents([.day, .year, .month], from: date)

let day = calendarDate.day
print(day) //16
let month = calendarDate.month
print(month) //12
let year = calendarDate.year
print(year) //2019

Answer 7

您可以按如下方式获取日、月和年

let yourDate = Calendar.current.dateComponents([.day, .year, .month], from: Date())
if let day = yourDate.day, let month = yourDate.month, let year = yourDate.year {
   let monthName = Calendar.current.monthSymbols[month - 1]
   // your code here
}

Answer 8

extension String {
  func getMonthDay() -> (Int,Int) {
      let dateFormatter = DateFormatter()
      dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ssZ"
      let date =  dateFormatter.date(from: self) ?? Date()
      let calendar = Calendar.current
      let month = calendar.component(.month, from: date)
      let day = calendar.component(.day, from: date)

      return (month, day)
  }
}