Swift 3.0 Xcode8 beta 4 如何修复 Calendar.current.date

Question

晚上，我真的不知道如何转换这个：

let birthDay = Calendar.current.date(era: 1, year: year, month: moth, day: day, hour: 0, minute: 0, second: 0, nanosecond: 0)

进入这个：

Calendar.current.date(from: <DateComponents>)

有什么建议吗？

这是我所做的：

let dateComponet = DateComponents(timeZone: nil, era: 1, year: year, month: month, day: day, hour: 0, minute: 0, second: 0, nanosecond: 0)
let birthDay = Calendar.current.date(from: dateComponet)

有没有更短的路？

谢谢

Answer 1

是的，您可以在使用该初始化程序时仅传递所需的组件以及当前日历，并从 datecomponents 对象中获取日期属性：

日期组件

public init(calendar: Calendar? = default,
            timeZone: TimeZone? = default,
            era: Int? = default,
            year: Int? = default,
            month: Int? = default,
            day: Int? = default,
            hour: Int? = default,
            minute: Int? = default,
            second: Int? = default,
            nanosecond: Int? = default,
            weekday: Int? = default,
            weekdayOrdinal: Int? = default,
            quarter: Int? = default,
            weekOfMonth: Int? = default,
            weekOfYear: Int? = default,
            yearForWeekOfYear: Int? = default)

let birthDay = DateComponents(calendar: .current, year: 2016, month: 8, day: 9).date!   // "Aug 9, 2016, 12:00 AM"

Swift 3.0 Xcode8 beta 4 如何修复 Calendar.current.date

Swift 3.0 Xcode8 beta 4 how to fix Calendar.current.date

calendar

date

ios

swift3

xcode8-beta4