@StateObject @UIApplidationDelegateAdapter - SwiftUI 2nd major release.

SwiftUI 2の追加された重要定義について
SwiftUI でアプリ構築ができることになった影響について
@StateObject
@ApplicationDelegate

Transcript

1. !4UBUF0CKFDU
   !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
   4XJGU6*OENBKPSSFMFBTF
   

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2. ࣗݾ঺հ
   

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3. ೳొཁ !OPUPSPJE
   
   w J04ΞϓϦ։ൃऀ
   w ԰߸͍Γ·͢ిࢉاը
   w !OPUPSPJE
   w !JSJNBTV
   w ࠷ۙͷಈ޲
   w ϒϩά࡮৽͠·ͨ͠
   

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4. ॆిใࠂ͞Μ #BUUFSFDFJWFS
   
   w όοςϦʔϞχλʔ ϢʔςΟϦςΟʔ
   
   w ࠷େ୆ ࣮ػϦϞʔτ୆
   
   w ख࣋ͪͷJ1IPOF͔Βଞʹ͍࣋ͬͯΔ
   J1IPOF J1BEͳͲͷػثͷόοςϦʔঢ়ଶ֬
   ೝՄೳ
   w ࣗ୐ʹ͋ΔJ1IPOFͷόοςϦʔঢ়ଶ֬ೝՄ
   ೳ
   

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5. ॆిใࠂ͞Μ #BUUFSFDFJWFS
   
   w "QQMF8BUDIରԠ
   w $PNQMJDBUJPOTରԠ
   w ॆి׬ྃ௨஌
   w ॆి׬ྃΛ఻͑ͯ͘ΕΔ௨஌Λ௥Ճ
   w ҎԼʹࢦఆ͢Δ͜ͱͰόοςϦʔ
   ΛέΞ͢Δ͜ͱ͕Մೳ
   w Կ͔ͱߴ͍J1IPOFΛ௕࣋ͪͤ͞Δͷʹ༗
   ༻
   

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6. ࿩͢͜ͱ
   w 4XJGU6*ͷ௥Ճ͞Εͨॏཁఆٛʹ͍ͭͯ
   w 4XJGU6*ͰΞϓϦߏங͕Ͱ͖Δ͜ͱʹͳͬͨӨڹʹ͍ͭͯ
   w !4UBUF0CKFDU
   w !"QQMJDBUJPO%FMFHBUF
   

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7. ࿩͞ͳ͍͜ͱ
   w 4XJGU6*ͷ௥Ճ͞Εͨ6*
   w 4XJGU6*ͷσόοά
   w 4XJGU6*ͷυΩϡϝϯταϙʔτ
   

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8. ୊໨
   w 4XJGU6*͔ΒΈͨ4XJGU6*
   w 4XJGU6*ͰΞϓϦߏங
   w !4UBUF0CKFDU
   w !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
   w ·ͱΊ
   

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9. 4XJGU6*͔ΒΈͨ4XJGU6*
   

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10. 4XJGU6*͔ΒΈͨ4XJGU6*
    w 4XJGU6*͔ΒͰ͖Δ͜ͱ͕രൃతʹ૿͑ͨ
    w υΩϡϝϯτϕʔεΞϓϦ΁ͷ஫ྗ͸4XJGU6*͔Βܧଓͯ͠ڧԽ
    w ίΞػೳ͸ϢʔςΟϦςΟతͳमਖ਼ʹͱͲ·Δ !4UBUF0CKFDUΛআ͍ͯ
    
    

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11. 4XJGU6*ͷ؆ܿͳهड़͸
    !͔Β࢝·ΔఆٛʹΑΔ΋ͷ
    

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12. !ఆٛΛྻڍͯ͠ΈΔ
    

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13. 4XJGU6*ͷ!ఆٛ
    w !6*"QQMJDBUJPO%FMFHRBUF"EBQUFS
    w !4DBMFE.FUSJD
    w !&OWJSPONFOU
    w !4DFOF4UPSBHF
    w !4DFOF#VJMEFS
    w !4UBUF
    w !#JOEJOH
    w !0CTFSWFE0CKFDU
    w !1VCMJTI
    w !&OWJSPONFOU
    w !4UBUF0CKFDU
    

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14. w !4UBUF
    w !#JOEJOH
    w !0CTFSWFE0CKFDU
    w !1VCMJTI
    w !&OWJSPONFOU
    w !4UBUF0CKFDU
    4XJGU6*ͷ!ఆٛ
    w !6*"QQMJDBUJPO%FMFHRBUF"EBQUFS
    w !4DBMFE.FUSJD
    w !&OWJSPONFOU
    w !4DFOF4UPSBHF
    w !4DFOF#VJMEFS
    7JFX
    7JFX಺Ͱঢ়ଶΛอ࣋
    7JFX಺Ͱঢ়ଶΛଋറ NVUBCMF
    
    7JFX಺Ͱ0CTFSWBCMF0CKFDUอ࣋
    0CTFSWBCMF0CKFDU಺ͰࢦఆՄೳͳঢ়ଶڙڅݩ 1VCMJTIFS
    
    ؀ڥม਺
    

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15. 4XJGU6*ͷ!ఆٛ
    w !4UBUF
    w !#JOEJOH
    w !0CTFSWFE0CKFDU
    w !1VCMJTI
    w !&OWJSPONFOU
    w !4UBUF0CKFDU
    w !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
    w !NBJO
    w !/BNFTQBDF
    w !4DBMFE.FUSJD
    w !4DFOF4UPSBHF
    w !4DFOF#VJMEFS
    

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16. w !4UBUF
    w !#JOEJOH
    w !0CTFSWFE0CKFDU
    w !1VCMJTI
    w !&OWJSPONFOU
    w !4UBUF0CKFDU
    w !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
    w !NBJO
    w !/BNFTQBDF
    w !4DBMFE.FUSJD
    w !4DFOF4UPSBHF
    w !4DFOF#VJMEFS
    4XJGU6*ͷ!ఆٛ
    ࠓճͷओ໾
    "QQMJDBUJPO%FMFHBUFͷ୅໾
    NBJO
    ؔ਺ͷ୅໾
    ؀ڥఆٛΛม਺Ͱอ࣋Մೳ
    Ξχϝʔγϣϯ༻໊લۭؒ
    γʔϯ؀ڥม਺
    ෳ਺ը໘࣋ͪγʔϯ༻
    

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17. w !4UBUF
    w !#JOEJOH
    w !0CTFSWFE0CKFDU
    w !1VCMJTI
    w !&OWJSPONFOU
    w !4UBUF0CKFDU
    w !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
    w !NBJO
    w !/BNFTQBDF
    w !4DBMFE.FUSJD
    w !4DFOF4UPSBHF
    w !4DFOF#VJMEFS
    4XJGU6*ͷ!ఆٛ
    ࠓճͷओ໾
    "QQMJDBUJPO%FMFHBUFͷ୅໾
    NBJO
    ؔ਺ͷ୅໾
    ؀ڥఆٛΛม਺Ͱอ࣋Մೳ
    Ξχϝʔγϣϯ༻໊લۭؒ
    γʔϯ؀ڥม਺
    ෳ਺ը໘࣋ͪγʔϯ༻
    

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18. 4XJGU6*Ͱ!͕͍ͭͨΒ$PNCJOF
    'SBNFXPSL͕հࡏ͠෇ՃతͳػೳΛ
    ༩͍͑ͯΔͱࢥ͏΂͠
    

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19. !͕͍ͭͯ΋໊শ͕௚ײత͡Όͳ͍
    ͱ͍͏͋ͳͨ
    

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20. 4XJGU6*͸શһελʔτϥΠϯ
    Έ͍ͨͳ΋ͷͳͷͰ
    ࠓ͕֮͑Ͳ͖Ͱ͢Αɻ
    

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21. JSJNBTVDPNTXJGUVJDPNCJOF
    GSBNFXPSLLFZQBUITXJGUVJ
    4XJGU6*ΛֶͿ্Ͱ಄ʹೖΕ͓͖͍ͯͨ,FZ1BUIɺ$PNCJOFGSBNFXPSL
    ʹ͍ͭͯ͸೥݄ษڧձͰ࿩ͨ͠಺༰Λ֬ೝ
    

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22. 4XJGU6*ͰΞϓϦߏங
    

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23. 4XJGU6*ϕʔεͰΞϓϦߏங
    ͕ՄೳͱͳΓ·ͨ͠
    

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24. 4XJGU6*͕ΞϓϦߏங·Ͱԡ͠ਐΊͨཧ༝
    w ϚϧνϓϥοτϑΥʔϜԽ J04 J1BE04 NBD04 UW04 XBUDI04
    
    w ৽ͨͳ։ൃऀͷݺͼࠐΈ
    w ೥ϓϨΠϠʔ͕ΞϓϦ։ൃʹࢭ·ΔΘ͚΋ͳ͠ɺ૯ྔ΋૿͑ͳ͍
    w 8FCϓϩάϥϚʹ਌࿨ੑΛΑΓߴͯ͘͠৽نࢀೖऀݺͼࠐΈ
    

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25. 4XJGU6*ͰΞϓϦߏங͸
    ͲͷΑ͏ʹୡ੒͞Εͨ
    

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26. 4XJGU6*ͷߟ͑ํΛ
    ΞϓϦશମʹద༻
    

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27. View Slide

28. $PDPBGSBNFXPSL
    JNQPSU6*,JU
    !6*"QQMJDBUJPO.BJO
    DMBTT"QQ%FMFHBUF6*3FTQPOEFS 6*"QQMJDBUJPO%FMFHBUF\
    WBSNPEFM.PEFM
    
    GVODBQQMJDBUJPO @BQQMJDBUJPO EJE'JOJTI-BVODIJOH8JUI0QUJPOTMBVODI0QUJPOT
    #PPM\
    SFUVSOUSVF
    ^
    GVODBQQMJDBUJPO www
    \
    
    ^
    
    GVODBQQMJDBUJPO www
    \
    ^
    ^
    DMBTT4DFOF%FMFHBUF6*3FTQPOEFS 6*8JOEPX4DFOF%FMFHBUF\
    

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29. 4XJGU6*
    JNQPSU4XJGU6*
    !NBJO
    TUSVDU46*5FTU"QQ"QQ\
    WBSCPEZTPNF4DFOF\
    8JOEPX(SPVQ\
    $POUFOU7JFX
    
    ^
    ^
    ^
    

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30. ྑ͍͜ͱʹΑ͏ʹࢥ͑Δ͕ʜ
    

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31. $PDPBGSBNFXPSL
    JNQPSU6*,JU
    !6*"QQMJDBUJPO.BJO
    DMBTT"QQ%FMFHBUF6*3FTQPOEFS 6*"QQMJDBUJPO%FMFHBUF\
    WBSNPEFM.PEFM
    
    GVODBQQMJDBUJPO @BQQMJDBUJPO EJE'JOJTI-BVODIJOH8JUI0QUJPOTMBVODI0QUJPOT
    #PPM\
    SFUVSOUSVF
    ^
    GVODBQQMJDBUJPO www
    \
    
    ^
    
    GVODBQQMJDBUJPO www
    \
    ^
    ^
    DMBTT4DFOF%FMFHBUF6*3FTQPOEFS 6*8JOEPX4DFOF%FMFHBUF\
    ΤϯτϦʔ ΦϒδΣΫτ
    
    ΦϒδΣΫτ
    Πϕϯτ
    Πϕϯτ
    Πϕϯτ
    

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32. 4XJGU6*
    JNQPSU4XJGU6*
    !NBJO
    TUSVDU46*5FTU"QQ"QQ\
    WBSCPEZTPNF4DFOF\
    8JOEPX(SPVQ\
    $POUFOU7JFX
    
    ^
    ^
    ^
    ߏ଄ମ ΤϯτϦʔ
    
    ߏ଄ମ
    ߏ଄ମ
    

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33. View Slide

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35. ΞϓϦߏஙͷ໰୊఺
    w $PDPBGSBNFXPSLͷ৔߹͸ɺΦϒδΣΫτͷߟ͑ํͷൣᙝͰΞϓϦߏங
    ͕Մೳ
    w 4JXGU6*Ͱ͸ɺΞϓϦߏங·Ͱ4XJGU6*ͷߟ͑ʹଇΔͷͰΦϒδΣΫτ
    Λ҆௚ʹ௥ՃͰ͖ͳ͍
    w ΞϓϦͷΠϕϯτ͸ɺϓϥοτϑΥʔϜ͝ͱґଘ͍ͯ͠ΔͷͰɺϚϧνϓ
    ϥοτϑΥʔϜΛࢤ͢4XJGU6*ͱ૬༰Εͳ͍
    

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36. !4UBUF0CKFDU
    !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
    

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37. !4UBUF0CKFDU
    w 4XJGU6*͕࠷ऴతʹϨϯμϦϯά͢ΔΦϒδΣΫτͱಉ͡ϥΠϑαΠΫϧ
    w 0CTFSWBCMF0CKFDUͷ೿ੜΫϥεͷΈΛࢦఆՄ
    w 4XJGU6*ͷߟ͑ํ͔Β͸গ͠֎ΕΔ͕ࣗવʹίʔυ͕ॻ͚Δ
    

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38. import SwiftUI
    @main
    struct FooApp: App {
    @StateObject var model = FooModel()
    var body: some Scene {
    WindowGroup {
    ContentView()
    .environmentObject(model)
    }
    }
    }
    

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39. !6*"QQMJDBUJPO%FMFHBUF"EBQUFS
    w ೥ͷஈ֊Ͱ΋ϓϥοτϑΥʔϜ͝ͱͷΞϓϦέʔγϣϯϑϨʔϜϫʔΫʹ
    ґଘ͢ΔՕॴ͸ଘࡏ
    w J044%,Ͱ͸6*"QQMJDBUJPO%FMFHBUFʹॏཁͳॲཧ͕಺ࡏ
    w ϓογϡ௨஌ͷొ࿥੒ޭࣦഊ
    w όοΫάϥ΢ϯυ௨஌ͷड͚औΓ
    w )BOEP⒎ͷৼΓ෼͚
    w 4XJGU6*͕ΞϓϦߏஙΛ୲͍ͬͯΔ౎߹্6*"QQMJDBUJPO%FMFHBUFͷखஈΛఏڙ
    

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40. import UIKit
    class AppDelegate: UIResponder, UIApplicationDelegate {
    }
    import SwiftUI
    @main
    struct FooApp: App {
    @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate
    var body: some Scene {
    WindowGroup {
    ContentView()
    }
    }
    }
    

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41. αϯϓϧίʔυ
    !4UBUF0CKFDUͷڍಈΛ֬ೝͯ͠ΈΑ͏
    

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42. HJUIVCDPNOPUPSPJE
    4UBUF0CKFDU$BUBMPH
    

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43. ౴͑߹Θͤ
    

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44. View Slide

45. !4UBUF0CKFDUࡶײ
    w ϨϯμϦϯά͞ΕͨΦϒδΣΫτͱಉ͡ϥΠϑαΠΫϧ
    w ࠩ͠ସ͕͑ൃੜ͠ͳ্͍ҐΦϒδΣΫτ "QQ 4DFOF
    Ͱѻ͍΍͍͢
    w υΩϡϝϯτϕʔεΞϓϦͷͨΊʹ࡞ΒΕͨΑ͏ʹ΋Έ͑Δ
    

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46. ·ͱΊ
    w 4XJGU6*͸6*͕औΓ্͕͛ͪͰ͕͢ίΞఆٛ΋૿͍͑ͯ·͢
    w 4XJGU6*ͰΞϓϦߏங͢ΔͱݹࢀͷΞϓϦ։ൃऀ΄ͲมԽΛڧ͍ΒΕ
    ·͢
    w !4UBUF0CKFDU͸4JXGU6*ΞϓϦ։ൃͷ৭ʑͳ໰୊Λղܾ͠·͢
    

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