CODEWITHSUNDEEP
iosswift3
gamal
gamal

Reputation: 1665

List of dates for given day of the week Swift

I need to get the List of dates for the given date of the week.

As an example : If user select the random date from picker Like 2017-6-7, I needs to get and display the dates of the week. [2017-6-4, 2017-6-5, 2017-6-6, 2017-6-7, 2017-6-8, 2017-6-9, 2017-6-10]

I couldn't find any solution on the internet.

Thank you

Upvotes: 4

Views: 3543

Answers (3)

D4ttatraya
D4ttatraya

Reputation: 3402

Try this:

let dateInWeek = Date()//7th June 2017

let calendar = Calendar.current
let dayOfWeek = calendar.component(.weekday, from: dateInWeek)
let weekdays = calendar.range(of: .weekday, in: .weekOfYear, for: dateInWeek)!
let days = (weekdays.lowerBound ..< weekdays.upperBound)
    .compactMap { calendar.date(byAdding: .day, value: $0 - dayOfWeek, to: dateInWeek) }

print(days)

It will give you this:

4 June 2017(Sunday)
5 June 2017
6 June 2017
7 June 2017
8 June 2017
9 June 2017
10 June 2017(Saturday)

Start fromMonday
The above is default behavior for my calendar that's why it is starting from Sunday.
If you want start from Monday then do this change:

let dayOfWeek = calendar.component(.weekday, from: dateInWeek) - 1

It depends on which locale your calendar is in.

Upvotes: 14

vikram
vikram

Reputation: 181

You can use this.

 let today = Date()
  let  weekStartDate = today.getWeekStartDate(fromDate: today)
   for i in 0..<5 {
    let nextDate = weekStartDate?.getNextDay(value: i, currentDate:weekStartDate)
}

func getWeekStartDate(fromDate : Date?) -> Date? {

        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"

        if let date = fromDate {
            var calendar = Calendar(identifier: .gregorian)
            calendar.firstWeekday = 3
            var startDate : Date = Date()
            var interval : TimeInterval = 0

            if calendar.dateInterval(of: .weekOfYear, start: &startDate, interval: &interval, for: date) {
                print("Start of week is \(startDate)")
                // prints "Start of week is 2017-01-01 06:00:00 +0000"
                return startDate
            }
        }
        return nil
    }


     func getNextDay(value : Int, currentDate : Date?) -> Date? {

            let dayComponenet = NSDateComponents()
            dayComponenet.day = value

            let theCalendar = NSCalendar.current
            let nextDate = theCalendar.date(byAdding: dayComponenet as DateComponents, to: currentDate!)
            return nextDate

        }

Hope this will help!.

Upvotes: 0

vadian
vadian

Reputation: 285260

This is a starting point using the date math skills of Calendar

var calendar = Calendar.current
calendar.firstWeekday = 1 // adjust first weekday if necessary
var startOfWeek = Date()
var interval : TimeInterval = 0.0
_ = calendar.dateInterval(of:.weekOfYear, start: &startOfWeek, interval: &interval, for: Date())
for i in 0..<7 {
    print(calendar.date(byAdding: .day, value: i, to: startOfWeek)!)
}

Upvotes: 1

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