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たまねぎ
February 16, 2022
Programming
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SwiftUIっぽくした話
たまねぎ
February 16, 2022
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Transcript
SwiftUIͬΆͨ͘͠ ϥΫϚ x STORES LTΠϕϯτ ~ iOS։ൃͷཪଆ ~ @_chocoyama
ࣗݾհ • ͨ·Ͷ͗ʢ@_chocoyamaʣ • 201912݄~ ϔΠגࣜձࣾ • STORES ϨδͷiOSΞϓϦ։ൃ
ΞδΣϯμ 1. STORES Ϩδͱ 2. ϨγʔτͱҹͷྲྀΕ 3. ϨγʔτϨΠΞτ࣮ͷมભ 4. ;Γ͔͑Γ
STORES Ϩδͱ • 2021.06ʹϦϦʔε • ࣮ళฮۀΛαϙʔτ͢ΔPOSΞϓϦ • ϑϧSwiftUI • ձܭɾཧɾϨγʔτҹ
etc…
ϑϧSwiftUIʹͨ͠ SwiftUIͬΆͨ͘͠
ϨγʔτͱҹͷྲྀΕ ձܭϨγʔτ ਫ਼ࢉϨγʔτ
ϨγʔτͱҹͷྲྀΕ XML CALayer CGImage ϓϦϯλʔ ϨΠΞτΛಈతʹఆٛ XMLΛύʔεͯ͠CALayerʹม CALayerΛը૾σʔλԽ ը૾ͷόΠφϦσʔλΛBluetoothͰૹ৴
ϨγʔτͱҹͷྲྀΕ XML CALayer CGImage ϓϦϯλʔ ϨΠΞτΛಈతʹఆٛ XMLΛύʔεͯ͠CALayerʹม CALayerΛը૾σʔλԽ ը૾ͷόΠφϦσʔλΛBluetoothͰૹ৴ ॳظஈ֊
Ͳ͏SwiftUIͬΆ͘վળ͖͔ͯͨ͠
ϨγʔτϨΠΞτ࣮ͷมભ • ͬΆ͞Lv1ɿXMLϕλॻ͖Ͱͷ࣮ • ͬΆ͞Lv2ɿFlutterͬΆ͍IFͷϑϨʔϜϫʔΫ࡞ • ͬΆ͞Lv3ɿresultBuilderʹΑΔSwiftUIͬΆ͍IFͷఏڙ
ಠࣗϧʔϧʹج͍ͮͨλά+ଐੑ ↓ Stringͷ݁߹ ↓ XMLจࣈྻΛ࡞ ͬΆ͘ͳ͍ʙʙʙ ͬΆ͞Lv1 : XMLϕλॻ͖Ͱͷ࣮ 9.-
• ܕ҆શͰͳ͘ɺఆ֎ͷจࣈ͕͋ΔͱऴΘΔ • ίʔυͱΞτϓοτͷߏ͕ඇରԠͰɺશମ૾͕ಡΈऔΓͮΒ͍ • Ͱॏෳͨ͠هड़ଟ͍ • มߋʹऑ͍ XMLจࣈྻΛੜ͢Δ͜ͱͷ
XMLએݴత ↓ એݴతUI ↓ SwiftUI ↓ ϨγʔτUISwiftUIͬΆ͘࡞ΕΔͷͰʁ ͰͲ͏͢Δ͔ʁ
• SwiftUIͷΑ͏ʹγϯϓϧͰએݴతͳϨΠΞτఆٛ • ܕͰݎ࿚ͯ͠ɺ͖์͔͚Δهड़Λഉআ • ΤσΟλͷิʹΑΓࣄલࣝͳ͠Ͱॻ͚ΔIF • ࠓޙͷཁૉ֦ுΛݟਾ͑ͯɺՃɾมߋ͍͢͠ → ܕ҆શͰXMLੜΛநԽͨ͠IFΛఏڙ͢Δ
վળํ
·͋·͋ ͬΆ͍ʙʙʙ ֤ཁૉ͝ͱʹΫϥεΛఆٛ ↓ ΠϯελϯεΛReceiptΫϥεʹ͢ ↓ ෦తʹXMLจࣈྻΛ࡞ ʢXMLΛॻ͔ͳͯ͘ྑ͍ʣ ͬΆ͞Lv2 :
FlutterͬΆ͍IFͷϑϨʔϜϫʔΫ࡞ 9.-
Textͷ߹ • ߏΛଊ͑͘͢ • ࢦఆՄೳύϥϝʔλΛܕͰݫ֨ʹ੍ޚ • ࣄલࣝͳ͠ͰɺิʹΑΓબՄೳͳΛѲ
۩ମతͳ࣮ ʮXMLλά1ͭʹ૬͢ΔจࣈྻΛੜʯ͢ΔIFΛఆٛ ଐੑΛؚΊͯλάจࣈྻΛੜ
۩ମతͳ࣮ ͯ͢ͷจࣈྻΛ1ͭͷXMLʹ·ͱΊ্͛Δ
՝ ཁૉΛྻʹͯ͢͠ ↓ ੍ࣜޚߏจΛॻ͚ͳ͍ ↓ ผΫϥεΛ࡞۪ͯ͠ʹରԠ
• resultBuilderͰߋʹSwiftUIͬΆ͘ • ذ܁Γฦ͠هड़Մೳʹ ͔ͳΓ ͬΆ͍ʙʙʙ ͬΆ͞Lv3 : resultBuilderʹΑΔSwiftUIͬΆ͍IFͷఏڙ 9.-
resultBuilder • Swift5.4ͰՃ͞ΕͨAttributeͰɺ෦DSLੜʹ׆༻Ͱ͖Δ ʢSwiftUIͷViewBuilderʹΘΕ͍ͯΔʣ • ؔͳͲʹద༻͢ΔͱɺྻڍΛऩूͯ͠࠷ऴతͳܕʹ·ͱΊΒΕΔ • ͷྻڍʹΧϯϚ͕ඞཁͳ͘ɺ੍ࣜޚߏจهड़Ͱ͖Δ •
ϓϩτλΠϓͷ@_functionBuilderͰɺػೳ੍͕ݶ͞Ε͍ͯͨ ྻڍͨ͠ SFTVMU#VJMEFS ࠷ऴతͳ
୯७ͳͷྻڍ < > CVJME#MPDL
ذ͕͋Δ߹ <><><><> CVJME&YQSFTTJPO <<> <>> < > CVJME#MPDL <
> < > CVJME&JUIFS fi STU <<> <> < >> < > CVJME#MPDL
elseઅͷͳ͍ذ͕͋Δ߹ <> CVJME0QUJPOBM
ϧʔϓ͕͋Δ߹ <<> <> <> <>> < > CVJME"SSBZ
ʂ ड͚͞ΕΔͷύλʔϯʹԠͯ͡ɺରԠ͢ΔbuildؔΛ࣮ → ݁Ռͷܕʹม͍ͯ͘͠
ϨγʔτϨΠΞτ༻ͷ࣮ [ReceiptElement] ྻڍͨ͠ SFTVMU#VJMEFS ࠷ऴతͳ
࠷ऴܗ ͬΆ͘ͳͬͨʂ
࠷ऴܗ
;Γ͔͑Γ • ཧܗ͔Βߟ͑ͨͷ͕ྑ͔ͬͨ • ࣮ݱͷͨΊɺΒͳ͍ࣝͷΠϯϓοτػձ͕ੜ·ΕΔ • ܗ͕ελʔτ࣌Ͱݟ͍͑ͯΔͨΊɺઃܭʹϒϨ͕ੜ·Εͳ͍ • ಠࣗSDK͍ॴΛݟۃΊΔͱ͏·͘ػೳ͢Δ •
ʢཚ༻͗͢͠ΔͱٯʹΘ͔ΓͮΒ͘ͳΔҙʣ
͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ ͖ͯ͢ͳϨγʔτҹϥΠϑΛʂ