如何快速获取当前一周的所有天数 [英] How to get all days in current week in swift

问题描述

我正在制作一个应用程序，该应用程序需要获取当前一周中所有日期的一年中的某天。
为此，我正在寻找与下面类似的结果（今天是3月23日，星期四）

I am making an application where I need to get the day of the year for all days in the current week. To achieve this, I am looking for a result similar to below (Today is Thursday the 23rd of March)

Monday = 79
Tuesday = 80
Wednesday = 81
Thursday = 82
Friday = 83

可以包括星期六和星期日，但是我的应用程序只需要工作日而不是周末。今天是第82天

Saturday and Sunday can be included, however my application only needs weekdays rather then weekends. Today is day 82

推荐答案

要获取一周中的工作日，它是：

To get the weekdays of the week, it is:

let calendar = Calendar.current
let today = calendar.startOfDay(for: Date())
let dayOfWeek = calendar.component(.weekday, from: today)
let weekdays = calendar.range(of: .weekday, in: .weekOfYear, for: today)!
let days = (weekdays.lowerBound ..< weekdays.upperBound)
    .compactMap { calendar.date(byAdding: .day, value: $0 - dayOfWeek, to: today) }  // use `flatMap` in Xcode versions before 9.3
    .filter { !calendar.isDateInWeekend($0) }

要显示为星期四= 82，则为

To display that as "Thursday = 82", it is

let formatter = DateFormatter()
formatter.dateFormat = "eeee' = 'D"
for date in days {
    print(formatter.string(from: date))
}

或

let strings = days.map { formatter.string(from: $0) }

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