What's new in SwiftData + SwiftData Group Lab Recap

WWDC26 - Japan-\(region).swift 登壇資料

1. 88%$
   3FDBQ
   
   +BQBOa SFHJPO TXJGU 8IBUT
   OFX
   JO
   4XJGU%BUB
   4XJGU%BUB
   (SPVQ
   -BC
   3FDBQ  ͍·͑͢ 9ɿNBTI@
2. 5PQJDT w 4XJGU%BUBͷ৽ػೳ঺հ
   w TFDUJPO#Z
   w !"UUSJCVUF DPEBCMF
   w 3FTVMUT0CTFSWFS
   w )JTUPSZ0CTFSWFS
   w 4XJGU%BUB
   (SPVQ
   -BC 
3. TFDUJPO#Z w 4USJOH
   
   4USJOH
   ϓϩύςΟ΁ͷ,FZ1BUIͰάϧʔϓԽ
   w ηΫγϣϯ͸
   @USJQTTFDUJPOT
   ͔Βऔಘ
   w TFDUJPOJE
   ͸
   TFDUJPO#Z
   ʹࢦఆͨ͠ϓϩύςΟͷ஋ 
4. struct TripListView: View { @Query(sectionBy: \Trip.destination) var trips: [Trip] var body: some View { List(selection: $selection) { if _trips.sections.isEmpty { ForEach(trips) { trip in ... } } else { ForEach(_trips.sections) { section in Section(section.id) { ForEach(section) { trip in ... } } } } } } } 
5. !"UUSJCVUF DPEBCMF w 4XJGU%BUB͕ѻ͑ͳ͍$PEBCMFܕΛɺܕࣗ਎ͷFODPEFEFDPEFΛ࢖ͬͯอଘ͢Δ
   w ྫɿ.BQ,JUͷ.,.BQ*UFN*EFOUJ fi FS
   w ͨͩ͠ɺ੍໿΋͋Δ
   w 4XJGU%BUB͔Β஋ͷ಺෦ߏ଄͸ෆಁ໌
   w 1SFEJDBUFͰͷϑΟϧλϦϯάɺ4PSU%FTDSJQUPSͰͷιʔτ͸Ͱ͖ͳ͍
   w ϓϩύςΟͷ௥Ճ΍࡟আͳͲɺϚΠάϨʔγϣϯ͸ىಈ͠ͳ͍
   w ࣗ෼Ͱఆٛͨ͠ܕ͸࢖༻Λආ͚Δ΂͖ 
6. 4PSU%FTDSJQUPS
   let sortDescriptor = SortDescriptor<Trip>(\.mapItemIdentifier?.rawValue) let descriptor = FetchDescriptor<Trip>(sortBy: [sortDescriptor]) let trips = try modelContext.fetch(descriptor) 1SFEJDBUF
   let predicate = #Predicate<Trip> { trip in trip.mapItemIdentifier?.rawValue == "I78E51C9F47CC4F7B" } let descriptor = FetchDescriptor<Trip>(predicate: predicate) let trips = try modelContext.fetch(descriptor) !"UUSJCVUF DPEBCMF 
7. 4PSU%FTDSJQUPS
   let sortDescriptor = SortDescriptor<Trip>(\.mapItemIdentifier!.rawValue) let descriptor = FetchDescriptor<Trip>(sortBy: [sortDescriptor]) let trips = try modelContext.fetch(descriptor) 1SFEJDBUF
   let predicate = #Predicate<Trip> { trip in trip.mapItemIdentifier!.rawValue == "I78E51C9F47CC4F7B" } let descriptor = FetchDescriptor<Trip>(predicate: predicate) let trips = try modelContext.fetch(descriptor) ͲͪΒ΋GFUDI࣌ʹ࣮ߦ࣌Τϥʔ
   Thread 1: Fatal error: Failed to validate \Trip.mapItemIdenti fi er!.rawValue because rawValue is not a member of MKMapItemIdenti fi er !"UUSJCVUF DPEBCMF 
8. 3FTVMUT0CTFSWFS w !2VFSZͱಉ༷ʹσʔλΛऔಘ͠ɺετΞͷมߋΛ؂ࢹ͢Δ
   w ಉҰ.PEFM$POUFYU಺ͷมߋ
   w ಉҰ.PEFM$POUBJOFS಺ͷผ$POUFYUʹΑΔมߋ
   w ผϓϩηε΍$MPVE,JUಉظʹΑΔมߋ
   w 4XJGU6*
   7JFXʹґଘͤͣɺΞϓϦͷͲ͜Ͱ΋ར༻Ͱ͖Δ
   w fi MUFSTPSUTFDUJPO#ZʹରԠ
   w XJUI$POUJOVPVT0CTFSWBUJPO͕ฦ͢5PLFOΛอ࣋ͯ͠؂ࢹΛܧଓ͢Δ 
9. @Observable @MainActor final class MapCameraController { private let resultsObserver: ResultsObserver<Trip, Never> var bounds: MapCameraBounds? private var token: ObservationTracking.Token? init(modelContext: ModelContext) throws { resultsObserver = try ResultsObserver<Trip, Never>(modelContext: modelContext) token = withContinuousObservation(options: [.didSet]) {[weak self], event in self?.bounds = self?.calculateBounds(trips: resultsObserver.results) } } private func calculateBounds(trips: [Trip]) -> MapCameraBounds? { / * */ } } 3FTVMUT0CTFSWFS
10. !2VFSZͱ3FTVMUT0CTFSWFSͷ࢖͍෼͚ w 3FTVMUT0CTFSWFS͸4XJGU6*
    7JFXͷ!2VFSZʹ૬౰͢Δ΋ͷ
    w 7JFX.PEFM΍4XJGU6*ͷ7JFXҎ֎Ͱ؂ࢹ͍ͨ͠৔߹͸3FTVMUT0CTFSWFS
    w 4XJGU6*
    7JFXͰ͸!2VFSZ͕ద੾
    w ୯७ͳύϑΥʔϚϯε͚ͩͷҧ͍Λج४ʹ͠ͳ͍ 
11. )JTUPSZ0CTFSWFS w 4XJGU%BUBͷӬଓཤྺΛ؂ࢹ
    w ৽͍͠ཤྺτϥϯβΫγϣϯ͕௥Ճ͞ΕΔͱFWFOU$PVOUFS͕૿Ճ
    w FWFOU$PVOUFSͷมԽΛݕ஌͠ɺGFUDI)JTUPSZͰมߋ಺༰Λऔಘ͢Δ
    w PCTFSWFE.PEFMBVUIPSͰର৅ΛߜΓࠐΊΔ
    w ֎෦αʔόʔಉظ΍&YUFOTJPO༝དྷͷมߋॲཧʹར༻ 
12. @SyncActor final class ServerSync { private let observer: HistoryObserver private var token: ObservationTracking.Token? func start() throws { self.observer = try HistoryObserver(authors: ["App"], modelContainer: modelContainer) token = withContinuousObservation(options: .didSet) {[weak self] _ in _ = self?.observer.eventCounter self?.processChanges() } } private func processChanges() { // Fetch and process history transactions } } )JTUPSZ0CTFSWFS
13. 4XJGU%BUB
    (SPVQ
    -BC w σʔλऔಘ"1*ʢ!2VFSZ3FTVMUT0CTFSWFSʣͷ࢖͍෼͚
    w େن໛ͳσʔληοτΛѻ͏ࡍͷΞϓϩʔν
    w 8JEHFU
    
    "QQ
    *OUFOUT
    
    $MPVE,JU
    w $PSF
    %BUBͱͷػೳࠩ
    ͳͲ 
14. 4XJGU%BUB
    (SPVQ
    -BC w σʔλऔಘ"1*ʢ!2VFSZ3FTVMUT0CTFSWFSʣͷ࢖͍෼͚
    w େن໛ͳσʔληοτΛѻ͏ࡍͷΞϓϩʔν
    w 8JEHFU
    
    "QQ
    *OUFOUT
    
    $MPVE,JU
    w $PSF
    %BUBͱͷػೳࠩ
    ͳͲ 
15. 4XJGU%BUB
    (SPVQ
    -BC 2
    େن໛ͳσʔληοτΛѻ͏ࡍͷΞϓϩʔν w ʮେن໛ʢMBSHFʣʯͷҙຯΛ໌֬ʹఆٛ͢Δ
    w Ϩίʔυ਺͕ଟ͍Ϟσϧ͝ͱͷσʔλྔ͕େ͖͍Ϟσϧ਺͕ଟ͍
    w Ϩίʔυ਺͕ଟ͍
    w 1SFEJDBUF
    
    *OEFY
    
    GFUDI-JNJUͰऔಘྔΛ੍ݶ͢Δ
    w Ϟσϧ͝ͱͷσʔλྔ͕େ͖͍
    w FYUFSOBM4UPSBHFΛར༻͢Δ
    w େྔͷϞσϧΛऔΓࠐΉ
    w ୹໋ͳ.PEFM$POUFYUΛ࢖༻ͯ͠ɺখ͞ͳόονʹ෼ׂ͢Δ 
16. 4XJGU%BUB
    (SPVQ
    -BC 2
    4XJGU%BUBͰ߹ܭɺฏۉɺ࠷খ஋ɺ࠷େ஋Λ௚઀ܭࢉ͢Δํ๏ w $PSF
    %BUBͷ/4&YQSFTTJPOʹ૬౰͢Δ"1*͸·ͩͳ͍
    w ࠷খ஋
    
    ࠷େ஋
    w 4PSU%FTDSJQUPS
    ͱ
    GFUDI-JNJU
    
    
    ͷ૊Έ߹ΘͤͰ୅ସՄೳ
    w 4XJGU%BUBʹಉ౳ͷػೳ͕ͳ͍৔߹ɺ$PSF
    %BUBଆͷ/4&YQSFTTJPOΛར༻͢ Δ
    w ϢʔεέʔεΛఴ͑ͨϑΟʔυόοΫΛૹͬͯ΋Β͑Δͱ"1*ͷվળʹ໾ཱͭ 
17. ·ͱΊ w ηΫγϣϯΛ؆୯ʹදݱͰ͖ΔΑ͏ʹͳͬͨ
    w ʢ੍ݶ͸͋Δ͕ʣอଘͰ͖Δܕ͕૿͑ͨ
    w 4XJGU6*
    7JFX֎Ͱɺσʔλ΍ཤྺͷมߋΛѻ͍΍͘͢ͳͬͨ
    w ʮେن໛ʯͷछྨʹΑͬͯɺऔΔ΂͖Ξϓϩʔν͕ҟͳΔ
    w ·ͩ4XJGU%BUB͚ͩͰ׬݁Ͱ͖ͳ͍৔໘΋͋Δ
    w ͦͷ࣌͸$PSF
    %BUBͱͷซ༻΋બ୒ࢶ 
18. ࢀߟ w IUUQTEFWFMPQFSBQQMFDPNWJEFPTQMBZXXED
    w IUUQTEFWFMPQFSBQQMFDPNWJEFPTQMBZXXED
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPO$PSF%BUBBEPQUJOH TXJGUEBUBGPSBDPSFEBUBBQQ
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOTXJGUEBUBRVFSZTFDUJPOT
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOTXJGUEBUBSFTVMUTPCTFSWFS
    w IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOTXJGUEBUBIJTUPSZPCTFSWFS