DateComponentsと仲良くなる

by sato-shin

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TBUPTIJO!BTLFO*OD %BUF$PNQPOFOUTͱ ஥ྑ͘ͳΔɹ J04%$+BQBO

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ ࠓɺ೤͍࿩୊ʁ

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ ࠓɺ೤͍࿩୊ʁ %BUF$PNQPOFOUT͸J04

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ J04ʹؔ͢Δʁ

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ J04ʹؔ͢Δʁ

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ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ ೔࣌ܭࢉΛ%BUFͰࡁ·ͤͪΌͬͯΔਓ %BUF$PNQPOFOUTΛ͋Μ·Γ࢖ͬͨ͜ͱ͕ͳ͍ਓ ͦΜͳਓͷͨΊͷηογϣϯͰ͢ɻ

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࣌ؒͷجૅ

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࣌ؒ࣠

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ࣌ؒ࣠

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ࣌ؒ࣠

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ௕͞ ࣌ؒ࣠

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ௕͞ ࣌ؒ࣠ ༗໊ͳج४఺ɿ 6/*9ΤϙοΫ 65$

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࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ௕͞<ඵ> ࠃࡍ୯Ґܥʢ4*ʣͰఆٛ͞ΕΔ࣌ؒͷ୯Ґ͕ඵ ࣌ؒ࣠ ༗໊ͳج४఺ɿ 6/*9ΤϙοΫ 65$

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4XJGUͰ࣌ؒΛදݱ͢Δܕ͸ʁ %BUF

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4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ %BUF init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since: ) init()

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4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since: ) init() %BUF

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4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since: ) init() = init(timeIntervalSinceNow: 0) %BUF

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%BUF㱠೔෇ %BUF࣌ؒͷ఺

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೥ʁ݄ʁ೔ʁ ඵ͔͠஌Βͳ͍Αʂ %BUF㱠೔෇ %BUF࣌ؒͷ఺

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೔࣌ܭࢉͷ೉͠͞

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଍͠ࢉ͢Δ let after10Sec = Date() + 10 let after1Minute = Date() + 60 let after1Day = Date() + (60 * 60 * 24) let after1Month = Date() + (60 * 60 * 24 * 30)

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଍͠ࢉ͢Δ ! let after10Sec = Date() + 10 let after1Minute = Date() + 60 let after1Day = Date() + (60 * 60 * 24) let after1Month = Date() + (60 * 60 * 24 * 30)

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೔࣌ܭࢉͰߟྀ͠ͳ͚Ε͹͍͚ͳ͍͜ͱ ͏Δ͏೥ͷଘࡏ ϲ݄ͷఆٛ αϚʔλΠϜ ͏Δ͏ඵͷଘࡏ ೥ ೔ ϲ݄ ೔ ೔ ࣌ؒ ෼ ඵ

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ʌůɾ㱼ɾA ŷžŷž

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೔࣌ܭࢉΫϥε$BMFOEBS

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೔࣌ܭࢉΫϥε$BMFOEBS let calendar = Calendar(identifier: .gregorian) let after1Month = calendar.date(byAdding: .month, value: 1, to: Date())

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໰୊ ʮੜ೥݄೔Λ%BUFͰදݱͰ͖Δ͔ʁʯ

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ੜ೥݄೔Λ%BUFͰදݱͯ͠ΈΔ let birthday = Date(timeIntervalSince1970: 656_175_600) let formatter = DateFormatter() formatter.dateFormat = "yyyy-MM-dd" formatter.timeZone = TimeZone(abbreviation: "UTC") print(formatter.string(from: birthday))

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%BUF࣌ؒͷ఺ ஀ੜ೔ͳͲͷදݱʹ͸޲͔ͳ͍

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%BUF࣌ؒͷ఺ ੜ೥݄೔ͳͲͷදݱʹ͸޲͔ͳ͍

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%BUF࣌ؒͷ఺ ੜ೥݄೔ͳͲͷදݱʹ͸޲͔ͳ͍ ࠓ೔ɺࠓ݄ɺࠓ೥ɺه೦೔ɺFUD λΠϜκʔϯʹґଘ͠ͳ͍೔࣌Λਖ਼֬ʹදݱͰ͖ͳ͍

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೔෇ͰදݱͰ͖Δܕ͕͋ͬͨΒͳ͊ɻɻɻ

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%BUF$PNQPOFOUT

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let calendar = Calendar(identifier: .gregorian) let birthday = DateComponents(calendar: calendar, year: 1990, month: 10, day: 18)

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%BUF$PNQPOFOUTͷ *OJUJBMJ[FS͔Βಛ௃ΛݟΔ

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%BUF$PNQPOFOUT JOJUJBMJ[FS DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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ͭш㱬 ŠƄŢŠƄŢ

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%BUF$PNQPOFOUT JOJUJBMJ[FS ͳΜͱҾ਺ݸʂ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT ೔࣌Λߏ੒͢Δཁૉ܈

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%BUF$PNQPOFOUT JOJUJBMJ[FS શͯ೔࣌ͷߏ੒ཁૉ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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ͭͷཁૉຖ͸؆୯

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%BUF$PNQPOFOUT JOJUJBMJ[FS ΧϨϯμʔ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS λΠϜκʔϯ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ࣌୅ ݩ߸ HSFHPSJBOΧϨϯμʔͷ৔߹ لݩલ ੢ྐྵ ࿨ྐྵΧϨϯμʔͷ৔߹ େԽ ฏ੒ ྩ࿨ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ೥݄೔࣌෼ඵφϊඵ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ༵೔ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ͦͷ༵೔͕Կ൪໨͔ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?) ݄ͷୈ ೔༵೔

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%BUF$PNQPOFOUT JOJUJBMJ[FS ࢛൒ظ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ͦͷ݄ͷԿि໨͔ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?) ݄ͷୈि໨

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%BUF$PNQPOFOUT JOJUJBMJ[FS ͦͷ೥ͷԿि໨͔ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT JOJUJBMJ[FS ೥ʢXFFLPGZFBS༻ʣ DateComponents(calendar: Calendar?, timeZone: TimeZone?, era: Int?, year: Int?, month: Int?, day: Int?, hour: Int?, minute: Int?, second: Int?, nanosecond: Int?, weekday: Int?, weekdayOrdinal: Int?, quarter: Int?, weekOfMonth: Int?, weekOfYear: Int?, yearForWeekOfYear: Int?)

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%BUF$PNQPOFOUT͸Ͳ͏࢖͏ʁ

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ࡾͭͷ໾ׂ ೔࣌ ྔ ύλʔϯϚον

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ࡾͭͷ໾ׂ ೔࣌ %BUF$PNQPOFOUT%BUF

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೔࣌ DateComponents => Date let today = DateComponents(calendar: gregorianCalendar, year: 2021, month: 9, day: 19) var todayInJp = today todayInJp.timeZone = TimeZone(abbreviation: "JST") todayInJp.date // 2021-09-19 00:00:00 +09:00

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೔࣌ Date => DateComponents let today = gregorianCalendar .dateComponents([.calendar, .year, .month, .day], from: Date())

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೔࣌ let today = gregorianCalendar .dateComponents([.calendar, .year, .month, .day], from: Date()) Date͔Β Calendarͱ೥݄೔͕ઃఆ͞Εͨ DateComponentsΛੜ੒ Date => DateComponents

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ʮࠓ೔ʯͷදݱྫ

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ʮࠓ೔ʯͷදݱྫ

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೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥9݄19೔ let today = DateComponents(calendar: gregorianCalendar, year: 2021, month: 9, day: 19) today.isValidDate // true

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೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥9݄ͷୈ3,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year: 2021, month: 9, weekday: 1, weekdayOrdinal: 3) today.isValidDate // true

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೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥ͷ262೔໨ let today = DateComponents(calendar: gregorianCalendar, year: 2021, day: 262) today.isValidDate // false

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೔࣌ ʮࠓ೔ʯͷදݱྫʢ❌ʣ // 2021೥ͷ262೔໨ let today = DateComponents(calendar: gregorianCalendar, year: 2021, day: 262) today.isValidDate // false 2021೥1݄262೔ͱ൑ఆ͞Εɺfalse

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೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥ͷୈ38,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year: 2021, weekday: 1, weekdayOrdinal: 38) today.isValidDate // false

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೔࣌ ʮࠓ೔ʯͷදݱྫʢ❌ʣ // 2021೥ͷୈ38,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year: 2021, weekday: 1, weekdayOrdinal: 38) today.isValidDate // false 2021೥1݄ͷୈ38,೔༵೔ͱ ൑ఆ͞Εɺfalse

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ࡾͭͷ໾ׂ ྔ ௕͞

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ྔ ೔࣌ܭࢉͷ͓ڙʹ let oneMonth = DateComponents(month: 1) // ̍ϲ݄ let oneMonthLater = calendar.date(byAdding: oneMonth, to: Date())

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ྔ ೔࣌ܭࢉͷ͓ڙʹ let oneMonth = DateComponents(month: 1) // ̍ϲ݄ let oneMonthLater = calendar.date(byAdding: oneMonth, to: Date())

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ࡾͭͷ໾ׂ ύλʔϯϚον

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ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30) let trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

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ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30) let trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

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ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30 weekday: 1) let trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

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5JQT

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5JQT DateComponents(hour: 12)

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5JQT ྔΛද͢ͷ࣌ؒʁ ύλʔϯϚονͷ࣌ʁ DateComponents(hour: 12)

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5JQT %BUF$PNQPOFOUT͕ͲΜͳҙຯΛ͔࣋ͭ͸ɺίϯςΩετʹΑͬͯҟͳΔɻ ࠞཚ͢Δ৔߹ʹ͸ɺϥούʔΫϥεΛ࡞Δͷ͕͓͢͢Ίɻ // ྔతදݱʹݶఆ͢Δ struct DateLength { var value: DateComponents }

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·ͱΊ %BUF͸࣌ؒͷ఺Ͱ͋Γɺѻ͏୯Ґ͸ඵͷΈ ඵҎ֎୯ҐͰܭࢉΛߦ͏৔߹͸$BMFOEBSΛ࢖͏ %BUF$PNQPOFOUT͸೔࣌Λߏ੒͢Δཁૉ܈Ͱ ओʹʮ೔࣌ɺྔɺύλʔϯϚονʯͷ໾ׂͰ࢖ΘΕΔ

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͚͋͢Μઈࢍ֦େதʂ J04%$ΰʔϧυεϙϯαʔɻ͚͋͢ΜϝΨω১͖࢖ͬͯͶʂ ࠃ಺ʮϔϧεέΞʯΧςΰϦͰ೥౓ͷ%-਺ɺऩӹ/Pʂ 5FDIϒϩά࢝Ί·ͨ͠ʂ 🥇 📖 🎩

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͚͋͢Μઈࢍ֦େதʂ 5FDIϒϩάϦϯΫ ຊηογϣϯͷิ଍هࣄ΋ॻ͖·ͨ͠ɻ ͥͻνΣοΫͯ͠Έ͍ͯͩ͘͞ʂ https://tech.asken.inc

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