DateComponentsと仲良くなる

iOSDC 2021で発表したスライドです。
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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 🥇 📖 🎩
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