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Modern Core Data(iOS 10)
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Noritaka Kamiya
September 28, 2016
Programming
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1.3k
Modern Core Data(iOS 10)
potatotips #33
http://potatotips.connpass.com/event/38557/
Noritaka Kamiya
September 28, 2016
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Transcript
import CoreData ࠷ۙɺCore DataͲ͏Ͱ͔͢? @nolili Noritaka Kamiya
None
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CoreData
CoreData
NSAsynchronousFetchRequest NSFetchRequest<ResultType> NSPersistentContainer
NSFetchRequest<ResultType>
let request = NSFetchRequest(entityName: "Message") context.fetch(request) as! [Message] Force Casting!
Before
let request: NSFetchRequest<Message> = Message.fetchRequest() // fetchRequest() -> NSFetchRequest<T> ࣗಈੜ͞ΕΔ
let messages = context.fetch(request) // [Message] After
NSFetchRequest<ResultType> NSManagedObjectͷαϒΫϥεΛfetch͢Δ߹ʹศར SwiftϑϨϯυϦʔʹ Swift/Objective-C
NSAsynchronousFetchRequest
let request: NSFetchRequest<Message> = Message.fetchRequest() let asyncRequest = NSAsynchronousFetchRequest<Message>(fetchRequest: request)
{ result in let messages = messages = result.finalResult ?? [] } try! managedObjectContext.execute(asyncRequest)
let result: NSAsynchronousFetchResult = try! managedObjectContext.execute(asyncRequest) result.cancel()
NSAsynchronousFetchRequest closureΛͬͨඇಉظϑΣονָ͕ʹॻ͚Δ Ωϟϯηϧ͕Ͱ͖Δ ϑΣονͷProgressऔಘͰ͖Δ iOS 8~
NSPersistentContainer
Α͋͘ΔCore DataͷηοτΞοϓ
/41FSTJTUFOU4UPSF
/4.BOBHFE0CKFDU.PEFM /41FSTJTUFOU4UPSF
/41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM /41FSTJTUFOU4UPSF
/41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM /4.BOBHFE0CKFDU$POUFYU /41FSTJTUFOU4UPSF
/41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM /4.BOBHFE0CKFDU$POUFYU /4.BOBHFE0CKFDU$POUFYU 1SJWBUF2VFVF /41FSTJTUFOU4UPSF
ͭΒ͍
ॳݟࡴ͠
NSPersistentContainer
/41FSTJTUFOU$POUBJOFS NSPersistentContainer(name: "iOS10Sampler")
/41FSTJTUFOU4UPSF$PPSEJOBUPS /4.BOBHFE0CKFDU.PEFM /4.BOBHFE0CKFDU$POUFYU /4.BOBHFE0CKFDU$POUFYU 1SJWBUF2VFVF /41FSTJTUFOU4UPSF NSPersistentContainer(name: "iOS10Sampler") /41FSTJTUFOU$POUBJOFS
It just works
NSPersistentContainer (iOS 10~) Α͋͘ΔCoreDataͷηοτΞοϓΛ؆ུԽ طʹ͍ͬͯΔਓʹͨΓલ͔͠Εͳ͍͚Ͳͱ͖ͬͭʹ͘͞؇͞Ε͍ͯΔ ۜͷؙͰͳ͍ɻCoreDataΛ͍͜ͳͨ͢Ίʹ֮͑ͳ͚Ε͍͚ͳ͍͜ͱଟ͍ɻ NSPersistentStoreDescription Λ͑ࡉ͔ͳઃఆมߋՄ
None
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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
https://www.wantedly.com/projects/61105
import CoreData ࠷ۙɺCore DataͲ͏Ͱ͔͢? @nolili Noritaka Kamiya