Created
July 10, 2017 04:52
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Swift current week, start of year, week range in this year
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| import Foundation | |
| class DateUtil { | |
| private init() { | |
| } | |
| static func currentWeek() -> Int { | |
| let calendar = NSCalendar.current | |
| let dateComponent = calendar.component(Calendar.Component.weekOfYear, from: Date()) | |
| return dateComponent | |
| } | |
| static func startOfYear() -> Date { | |
| let now = Date() | |
| let cal = Calendar(identifier: .iso8601) | |
| var components = cal.dateComponents([.year], from: now) | |
| components.weekday = cal.firstWeekday | |
| components.weekOfYear = 1 | |
| return cal.date(from: components)! | |
| } | |
| static func weekRangeInThisYear() -> Range<Int> { | |
| let cal = Calendar(identifier: .iso8601) | |
| let startOfYear = self.startOfYear() | |
| return cal.range(of: .weekOfYear, in: .yearForWeekOfYear, for: startOfYear)! | |
| } | |
| } |
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