DateComponentsと仲良くなる

Transcript

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

2. ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ

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

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

5. ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ J04ʹؔ͢Δʁ

6. ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ J04ʹؔ͢Δʁ

7. ຊηογϣϯʹ͍ͭͯ %BUF$PNQPOFOUTͱ஥ྑ͘ͳΔɹ ೔࣌ܭࢉΛ
   %BUF
   Ͱࡁ·ͤͪΌͬͯΔਓ
   %BUF$PNQPOFOUT
   Λ͋Μ·Γ࢖ͬͨ͜ͱ͕ͳ͍ਓ
   ͦΜͳਓͷͨΊͷηογϣϯͰ͢ɻ

8. ࣌ؒͷجૅ

9. ࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ
   

10. ࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࣌ؒ࣠

11. ࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ࣌ؒ࣠

12. ࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ࣌ؒ࣠

13. ࣌ؒ͸ͲͷΑ͏ʹఆٛ͞ΕΔʁ ࠓ ج४఺ ௕͞ ࣌ؒ࣠

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

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

16. 4XJGUͰ࣌ؒΛදݱ͢Δܕ͸ʁ %BUF

17. 4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ %BUF init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since:

    ) init()

18. 4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since: )

    init() %BUF

19. 4XJGUͰ͸ͲͷΑ͏ʹදݱ͞ΕΔʁ init(timeIntervalSinceNow: ) init(timeIntervalSince1970: ) init(timeIntervalSinceReferenceDate: ) init(timeInterval: since: )

    init() = init(timeIntervalSinceNow: 0) %BUF

20. %BUF
    㱠
    ೔෇
    %BUF
    
    ࣌ؒͷ఺

21. ೥ʁ݄ʁ೔ʁ
    ඵ͔͠஌Βͳ͍Αʂ %BUF
    㱠
    ೔෇
    %BUF
    
    ࣌ؒͷ఺

22. ೔࣌ܭࢉͷ೉͠͞

23. ଍͠ࢉ͢Δ let after10Sec = Date() + 10 let after1Minute =

    Date() + 60 let after1Day = Date() + (60 * 60 * 24) let after1Month = Date() + (60 * 60 * 24 * 30)

24. ଍͠ࢉ͢Δ ! let after10Sec = Date() + 10 let after1Minute

    = Date() + 60 let after1Day = Date() + (60 * 60 * 24) let after1Month = Date() + (60 * 60 * 24 * 30)

25. ೔࣌ܭࢉͰߟྀ͠ͳ͚Ε͹͍͚ͳ͍͜ͱ ͏Δ͏೥ͷଘࡏ
    ϲ݄ͷఆٛ
    αϚʔλΠϜ
    ͏Δ͏ඵͷଘࡏ ೥
    
    
    
    
    
    
    
    ೔
    ϲ݄
    

    
    
    
    
    
    
    
    ೔
    ೔
    
    
    
    
    
    
    
    ࣌ؒ
    ෼
    
    
    
    
    
    
    
    ඵ

26. 
    ʌůɾ㱼ɾA
    ŷžŷž

27. ೔࣌ܭࢉΫϥε
    $BMFOEBS

28. ೔࣌ܭࢉΫϥε
    $BMFOEBS let calendar = Calendar(identifier: .gregorian) let after1Month = calendar.date(byAdding:

    .month, value: 1, to: Date())

29. ໰୊
    ʮੜ೥݄೔Λ%BUFͰදݱͰ͖Δ͔ʁʯ

30. 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))

31. 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)) 1990-10-18 00:00:00 +09:00

32. 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)) 1990-10-18 00:00:00 +09:00 1990-10-17

33. %BUF
    
    ࣌ؒͷ఺
    ஀ੜ೔ͳͲͷදݱʹ͸޲͔ͳ͍

34. %BUF
    
    ࣌ؒͷ఺
    ੜ೥݄೔ͳͲͷදݱʹ͸޲͔ͳ͍

35. %BUF
    
    ࣌ؒͷ఺
    ੜ೥݄೔ͳͲͷදݱʹ͸޲͔ͳ͍ ࠓ೔ɺࠓ݄ɺࠓ೥ɺه೦೔ɺFUD
    λΠϜκʔϯʹґଘ͠ͳ͍೔࣌Λਖ਼֬ʹදݱͰ͖ͳ͍

36. ೔෇ͰදݱͰ͖Δܕ͕͋ͬͨΒͳ͊ɻɻɻ

37. %BUF$PNQPOFOUT

38. let calendar = Calendar(identifier: .gregorian) let birthday = DateComponents(calendar: calendar,

    year: 1990, month: 10, day: 18)

39. %BUF$PNQPOFOUT
    ͷ
    *OJUJBMJ[FS
    ͔Βಛ௃ΛݟΔ

40. %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?)

41. ͭш㱬
    ŠƄŢŠƄŢ

42. %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?)

43. %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?)

44. %BUF$PNQPOFOUT
    ೔࣌Λߏ੒͢Δཁૉ܈

45. %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?)

46. ͭͷཁૉຖ͸؆୯

47. %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?)

48. %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?)

49. %BUF$PNQPOFOUT JOJUJBMJ[FS ࣌୅
    ݩ߸ HSFHPSJBO
    ΧϨϯμʔͷ৔߹
    
    
    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?)

50. %BUF$PNQPOFOUT JOJUJBMJ[FS ೥݄೔
    ࣌෼ඵ
    φϊඵ 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?)

51. %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?)

52. %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
    ೔༵೔

53. %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?)

54. %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໨

55. %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?)

56. %BUF$PNQPOFOUT JOJUJBMJ[FS ೥ʢXFFL
    PG
    ZFBS༻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?)

57. %BUF$PNQPOFOUT
    ͸Ͳ͏࢖͏ʁ

58. ࡾͭͷ໾ׂ ೔࣌
    ྔ
    ύλʔϯϚον

59. ࡾͭͷ໾ׂ ೔࣌ %BUF$PNQPOFOUT
    
    %BUF

60. ೔࣌ 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

61. ೔࣌ 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

62. ೔࣌ Date => DateComponents let today = gregorianCalendar .dateComponents([.calendar, .year,

    .month, .day], from: Date())

63. ೔࣌ let today = gregorianCalendar .dateComponents([.calendar, .year, .month, .day], from:

    Date()) Date͔Β Calendarͱ೥݄೔͕ઃఆ͞Εͨ DateComponentsΛੜ੒ Date => DateComponents

64. ʮࠓ೔ʯͷදݱྫ

65. ʮࠓ೔ʯͷදݱྫ

66. ೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥9݄19೔ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, month: 9, day: 19) today.isValidDate // true

67. ೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥9݄ͷୈ3,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, month: 9, weekday: 1, weekdayOrdinal: 3) today.isValidDate // true

68. ೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥ͷ262೔໨ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, day: 262) today.isValidDate // false

69. ೔࣌ ʮࠓ೔ʯͷදݱྫʢ❌ʣ // 2021೥ͷ262೔໨ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, day: 262) today.isValidDate // false 2021೥1݄262೔ͱ൑ఆ͞Εɺfalse

70. ೔࣌ ʮࠓ೔ʯͷදݱྫ // 2021೥ͷୈ38,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, weekday: 1, weekdayOrdinal: 38) today.isValidDate // false

71. ೔࣌ ʮࠓ೔ʯͷදݱྫʢ❌ʣ // 2021೥ͷୈ38,೔༵೔ let today = DateComponents(calendar: gregorianCalendar, year:

    2021, weekday: 1, weekdayOrdinal: 38) today.isValidDate // false 2021೥1݄ͷୈ38,೔༵೔ͱ ൑ఆ͞Εɺfalse

72. ࡾͭͷ໾ׂ ྔ ௕͞

73. ྔ ೔࣌ܭࢉͷ͓ڙʹ let oneMonth = DateComponents(month: 1) // ̍ϲ݄ let

    oneMonthLater = calendar.date(byAdding: oneMonth, to: Date())

74. ྔ ೔࣌ܭࢉͷ͓ڙʹ let oneMonth = DateComponents(month: 1) // ̍ϲ݄ let

    oneMonthLater = calendar.date(byAdding: oneMonth, to: Date())

75. ࡾͭͷ໾ׂ ύλʔϯϚον

76. ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30) let

    trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

77. ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30) let

    trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

78. ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30 weekday:

    1) let trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true)

79. ύλʔϯϚον UserNotificationͷTriggerදݱͳͲ let wakeUpAlertTime = DateComponents(hour: 8, minute: 30 weekday:

    1) let trigger = UNCalendarNotificationTrigger( dateMatching: wakeUpAlertTime, repeats: true) ೔༵೔ͷ8࣌30෼

80. 5JQT

81. 5JQT DateComponents(hour: 12)

82. 5JQT ྔΛද͢ͷ࣌ؒʁ
    ύλʔϯϚονͷ࣌ʁ DateComponents(hour: 12)

83. 5JQT %BUF$PNQPOFOUT
    ͕ͲΜͳҙຯΛ͔࣋ͭ͸ɺίϯςΩετʹΑͬͯҟͳΔɻ
    ࠞཚ͢Δ৔߹ʹ͸ɺϥούʔΫϥεΛ࡞Δͷ͕͓͢͢Ίɻ // ྔతදݱʹݶఆ͢Δ struct DateLength { var value:

    DateComponents }

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

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

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

87. None