夫特4:
DateFormatter() has 5 format style options for each of Date and Time. These are:
.none .short .medium .long .full
DATE TIME DATE/TIME STRING
"none" "none"
"none" "short" 9:42 AM
"none" "medium" 9:42:27 AM
"none" "long" 9:42:27 AM EDT
"none" "full" 9:42:27 AM Eastern Daylight Time
"short" "none" 10/10/17
"short" "short" 10/10/17, 9:42 AM
"short" "medium" 10/10/17, 9:42:27 AM
"short" "long" 10/10/17, 9:42:27 AM EDT
"short" "full" 10/10/17, 9:42:27 AM Eastern Daylight Time
"medium" "none" Oct 10, 2017
"medium" "short" Oct 10, 2017, 9:42 AM
"medium" "medium" Oct 10, 2017, 9:42:27 AM
"medium" "long" Oct 10, 2017, 9:42:27 AM EDT
"medium" "full" Oct 10, 2017, 9:42:27 AM Eastern Daylight Time
"long" "none" October 10, 2017
"long" "short" October 10, 2017 at 9:42 AM
"long" "medium" October 10, 2017 at 9:42:27 AM
"long" "long" October 10, 2017 at 9:42:27 AM EDT
"long" "full" October 10, 2017 at 9:42:27 AM Eastern Daylight Time
"full" "none" Tuesday, October 10, 2017
"full" "short" Tuesday, October 10, 2017 at 9:42 AM
"full" "medium" Tuesday, October 10, 2017 at 9:42:27 AM
"full" "long" Tuesday, October 10, 2017 at 9:42:27 AM EDT
"full" "full" Tuesday, October 10, 2017 at 9:42:27 AM Eastern Daylight Time
這裏是銀行代碼: 下面的代碼循環通過每個這些並顯示所得DATE_時間字符串:
import Foundation
let dateTimeFMT = DateFormatter()
var dateTimeString: String = ""
let currentDateTime = Date()
var stylesAsInts: [String] = [ // pre-formatted for display
"\"none\" ", "\"short\" ", "\"medium\"", "\"long\" ", "\"full\" "
]
var dateStyleIdx: Int; var timeStyleIdx: Int
print(" DATE TIME DATE/TIME STRING")
// LOOP through ALL time and date styles (.none .short .medium .long .full)
// these five values equate to 0...4
for dateStyleIdx in 0...4 { // loop on DATE...
dateTimeFMT.dateStyle = DateFormatter.Style(rawValue: UInt(dateStyleIdx))!
for timeStyleIdx in 0...4 { // loop on TIME...
dateTimeFMT.timeStyle = DateFormatter.Style(rawValue: UInt(timeStyleIdx))!
dateTimeString = dateTimeFMT.string(from: currentDateTime)
print("\(stylesAsInts[dateStyleIdx]) \(stylesAsInts[timeStyleIdx]) ", dateTimeString)
}
}
不知道怎麼樣,但嘗試'NSDateFormatterMediumStyle' – Ossir