下周的开始和结束日期 swift

Question

我需要获取像“1 月 31 日 - 2 月 6 日”这样的日期

我使用了下一个代码：

let calendar = Calendar(identifier: .gregorian)
let dateFormatter = DateFormatter()
let weekday = 1 
let sundayComponents = DateComponents(calendar: calendar, weekday: weekday)

let nextSunday = calendar.nextDate(after: Date(), matching: sundayComponents, matchingPolicy: .nextTimePreservingSmallerComponents)

我需要用完周一到周日的这段时间

Answer 1

您可以使用 dateInterval(of:start:interval:for:):

let formatter = DateFormatter()
let calendar: Calendar = .current

let now = Date()
let weekFromNow = calendar.date(byAdding: .weekOfYear, value: 1, to: now)!

var start = weekFromNow
var interval: TimeInterval = 0
guard calendar.dateInterval(of: .weekOfYear, start: &start, interval: &interval, for: weekFromNow) else { return }

let end = calendar.date(byAdding: .day, value: -1, to: start.addingTimeInterval(interval))!
// or let end = start.addingTimeInterval(interval - 1)
// or let end = calendar.date(byAdding: .day, value: 6, to: start)!

print(formatter.string(from: start), "-", formatter.string(from: end))

这将在您的设备上显示“一周的开始”。

下周的开始和结束日期 swift

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