Modern Core Data(iOS 10)

potatotips #33 http://potatotips.connpass.com/event/38557/

Transcript

1. import CoreData
   ࠷ۙɺCore DataͲ͏Ͱ͔͢?
   @nolili
   Noritaka Kamiya
   

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6. CoreData
   

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7. CoreData
   

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8. NSAsynchronousFetchRequest
   NSFetchRequest
   NSPersistentContainer
   

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9. NSFetchRequest
   

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10. let request = NSFetchRequest(entityName: "Message")
    context.fetch(request) as! [Message]
    Force Casting!
    Before
    

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11. let request: NSFetchRequest = Message.fetchRequest()
    // fetchRequest() -> NSFetchRequest ͸ࣗಈੜ੒͞ΕΔ
    let messages = context.fetch(request) // [Message]
    
    After
    

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12. NSFetchRequest
    NSManagedObjectͷαϒΫϥεΛfetch͢Δ৔߹ʹศར
    SwiftϑϨϯυϦʔʹ
    Swift/Objective-C
    

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13. NSAsynchronousFetchRequest
    

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14. let request: NSFetchRequest = Message.fetchRequest()
    let asyncRequest = NSAsynchronousFetchRequest(fetchRequest: request)
    { result in
    let messages = messages = result.finalResult ?? []
    }
    try! managedObjectContext.execute(asyncRequest)
    

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15. let result: NSAsynchronousFetchResult =
    try! managedObjectContext.execute(asyncRequest)
    result.cancel()
    

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16. NSAsynchronousFetchRequest
    closureΛ࢖ͬͨඇಉظϑΣονָ͕ʹॻ͚Δ
    Ωϟϯηϧ͕Ͱ͖Δ
    ϑΣονͷProgress΋औಘͰ͖Δ
    iOS 8~
    

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17. NSPersistentContainer
    

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18. Α͋͘ΔCore DataͷηοτΞοϓ
    

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19. /41FSTJTUFOU4UPSF
    

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20. /4.BOBHFE0CKFDU.PEFM
    /41FSTJTUFOU4UPSF
    

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21. /41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM
    /41FSTJTUFOU4UPSF
    

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22. /41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM
    /4.BOBHFE0CKFDU$POUFYU
    /41FSTJTUFOU4UPSF
    

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23. /41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM
    /4.BOBHFE0CKFDU$POUFYU
    /4.BOBHFE0CKFDU$POUFYU
    1SJWBUF2VFVF
    
    /41FSTJTUFOU4UPSF
    

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24. ͭΒ͍
    

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25. ॳݟࡴ͠
    

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26. NSPersistentContainer
    

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27. /41FSTJTUFOU$POUBJOFS NSPersistentContainer(name: "iOS10Sampler")
    

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28. /41FSTJTUFOU4UPSF$PPSEJOBUPS
    /4.BOBHFE0CKFDU.PEFM
    /4.BOBHFE0CKFDU$POUFYU
    /4.BOBHFE0CKFDU$POUFYU
    1SJWBUF2VFVF
    
    /41FSTJTUFOU4UPSF
    NSPersistentContainer(name: "iOS10Sampler")
    /41FSTJTUFOU$POUBJOFS
    

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29. It just works
    

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30. NSPersistentContainer (iOS 10~)
    Α͋͘ΔCoreDataͷηοτΞοϓΛ؆ུԽ
    طʹ࢖͍ͬͯΔਓʹ͸౰ͨΓલ͔΋͠Εͳ͍͚Ͳͱ͖ͬͭʹ͘͞͸؇࿨͞Ε͍ͯΔ
    ۜͷ஄ؙͰ͸ͳ͍ɻCoreDataΛ࢖͍͜ͳͨ͢Ίʹ֮͑ͳ͚Ε͹͍͚ͳ͍͜ͱ͸ଟ͍ɻ
    NSPersistentStoreDescription Λ࢖͑͹ࡉ͔ͳઃఆมߋ΋Մ
    

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33. References
    iOS 10 Sampler
    https://github.com/shu223/iOS-10-Sampler
    What’s new in Core Data
    https://developer.apple.com/videos/play/wwdc2016/242/
    SwiftʴCore DataʹΑΔiOSΞϓϦϓϩάϥϛϯά (੢ํՆࢠɺ ؙࢁ߂ࢻ)
    https://book.mynavi.jp/ec/products/detail/id=50729
    

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34. https://www.wantedly.com/projects/61105
    

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35. import CoreData
    ࠷ۙɺCore DataͲ͏Ͱ͔͢?
    @nolili
    Noritaka Kamiya
    

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