我可以让 RelativeDateTimeFormatter 显示更多单位，例如年、月和日吗？

Question

这是我的代码：

let startDate = Calendar.current.date(from: DateComponents(year: 2022, month: 5, day: 1)) ?? .now
let endDate = Calendar.current.date(from: DateComponents(year: 2020, month: 6, day: 2)) ?? .now

let dateComponents = Calendar.current.dateComponents([.year, .month, .day], from: startDate, to: endDate)
let relativeDateTimeFormatter = RelativeDateTimeFormatter()
let dateRemainingText = relativeDateTimeFormatter.localizedString(from: dateComponents)

dateRemainingText 是 1 year ago，而我希望它是 1 year, 11 months, 1 day ago，这样更准确

我可以让 RelativeDateTimeFormatter 显示更多单位，例如年月日，以便它 returns 1 year, 11 months, 1 day ago 而不是 1 year ago 吗？

Answer 1

另一个选择是DateComponentsFormatter

let startDate = Calendar.current.date(from: DateComponents(year: 2022, month: 5, day: 1)) ?? .now
let endDate = Calendar.current.date(from: DateComponents(year: 2020, month: 6, day: 2)) ?? .now

let dateComponentsFormatter = DateComponentsFormatter()
dateComponentsFormatter.allowedUnits = [.year, .month, .day]
dateComponentsFormatter.unitsStyle = .full
var dateRemainingText = dateComponentsFormatter.string(from: startDate, to: endDate)!
if dateRemainingText.hasPrefix("-") {
    dateRemainingText = "\(dateRemainingText.dropFirst()) ago"
} else {
    dateRemainingText = "in \(dateRemainingText)"
}

我可以让 RelativeDateTimeFormatter 显示更多单位，例如年、月和日吗？

Can I make RelativeDateTimeFormatter display more units such year, month and day?

swift

nsdate

nsdateformatter