Instance Property インスタンスプロパティ

presentation

Specifies the style to use when describing a relative date, such as “1 day ago” or “yesterday”.

Declaration 宣言 

var presentation: Date.RelativeFormatStyle.Presentation

Discussion 議論

Express relative date formats in either numeric or named styles. For example: 例えば： 


if let past = Calendar.current.date(byAdding: .day, value: -7, to: Date()) {
    var formatStyle = Date.RelativeFormatStyle()
    
    formatStyle.presentation = .numeric
    past.formatted(formatStyle) // "1 week ago"
    
    formatStyle.presentation = .named
    past.formatted(formatStyle) // "last week"
}

See Also 参照

Modifying a Relative Date Format Style

static func relative(presentation: Presentation, unitsStyle: UnitsStyle) -> Date.RelativeFormatStyle
Returns a relative date format style based on the provided presentation and unit style.
var unitsStyle: Date.RelativeFormatStyle.UnitsStyle
The style to use when formatting the quantity or the name of the unit, such as “1 day ago” or “one day ago”. 単位の量または名前を書式設定する時に使う様式、たとえば “1 day ago” または “one day ago”。
var calendar: Calendar
The calendar to use when formatting relative dates.
var capitalizationContext: FormatStyleCapitalizationContext
The capitalization context to use when formatting the relative dates.
var locale: Locale
The locale to use when formatting the relative date.
func locale(Locale) -> Date.RelativeFormatStyle
Modifies the relative date format style to use the specified locale.