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Migrating to Swift 3 #kyoakiswift
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Takaaki Tanaka
February 08, 2017
Technology
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2.9k
Migrating to Swift 3 #kyoakiswift
Kyobashi.swift x AKIBA.swift合同勉強会での発表資料です
#kyoakiswift
Takaaki Tanaka
February 08, 2017
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Transcript
ɹ2017/02/08 Kyobashi.swift x AKIBA.swift ߹ಉษڧձ Migrating to Swift 3
About Me
• ాத ໌ (Takaaki Tanaka) • Ϋϥεϝιουגࣜձࣾ • iOS ΞϓϦέʔγϣϯΤϯδχΞ
• @kongmingtrap • iOS Developer (Swift / Objective-C) • GyazSquare / GitHub
ͱ͋ΔΞϓϦͷ Swift 3ରԠ
ͱ͋ΔΞϓϦ • Swift 1.1ͷࠒ͔Β࡞ΒΕ͍ͯΔΞϓϦ • ॳظόʔδϣϯiOS 7ରԠ • Swift 1.2
→ 2.1ʹରԠ • ιʔείʔυɹ250ϑΝΠϧ • ϥΠϒϥϦཧCocoaPods
ϛογϣϯ iOS 10 ʹ ରԠηϤ
iOS 10 • Xcode ͷόʔδϣϯ8Ҏ্ • iOS SDK 10ΛΈࠐΉͨΊʹ Swift
2.3ɺ Swift 3.0ରԠ͕ඞཁ
Swift 3.0 • NS Prefix͔Βͷ٫ • ৽ͨͳΔAPIσβΠϯΨΠυϥΠϯ
Swift 3.0 • NS Prefix͔Βͷ٫ → Ұ෦Γ·ͨ͠ ʢNSNumberʣ • ৽ͨͳΔAPIσβΠϯΨΠυϥΠϯ
→ طଘ ͷϥΠϒϥϦͷϝιου໊มΘΓ͗͢ • ABI҆ఆԽ → Swift 4·ͰͬͯͶ
None
None
ʊਓਓਓਓਓਓਓਓਓʊ ʼɹࢼ͞ΕΔ৺ɹʻ ʉ:?:?:?:?:?:?:?:ʉ
Swift 2.3 • Xcode 8 + iOS 10 SDKͰϏϧυ͕Մೳ •
Swift 2.x ܥͷAPIσβΠϯ • ͱΓ͋͑ͣٸ͍ͰiOS 10ͰϏϧυ͠ͳ͚Ε ͳΒͳ͍࣌ʹରԠ
Swift 2.3 9DPEF3FMFBTF/PUFT • Xcode 8.2 ͕࠷ޙͷαϙʔτʹͳΔͨΊɺ Swift 3.0ͷରԠඞਢ
Swift 3.0Ҡߦ
Swift 2.2ͷҠߦ • Xcode 7.2 + Swift 2.1 ͷ։ൃڥΛXcode 8.2
Ͱىಈͨ͠ࡍɺʮEdit > Convert > To Current Swift Syntax.ʯͷରʹTarget͕දࣔ ͞Εͳ͔ͬͨ • ͱΓ͋͑ͣɺXcode 7.3ͰSwift 2.1͔ΒSwift 2.2Ҡߦͨ͠
Migration • Xcode 8.2Ͱىಈͨ͠ࡍɺաڈͷSwift όʔ δϣϯͷ߹Convertը໘͕ىಈ͢Δ • ʮEdit > Convert
> To Current Swift Syntax.ʯ Ͱ࣮ߦՄೳ • Swift 1.1 → Swift 2.1ͷ͍࣌ͷʹͳΒͳ ͔ͬͨ
None
None
ʊਓਓਓਓਓਓਓਓਓʊ ʼɹ$POWFSU'BJMFEɹʻ ʉ:?:?:?:?:?:?:?:?:?ʉ
Migration • Xcode 8.2Ͱىಈͨ͠ࡍɺաڈͷSwift όʔδϣ ϯͷ߹Convertը໘͕ىಈ͢Δ • ʮEdit > Convert
> To Current Swift Syntax.ʯͰ ࣮ߦՄೳ • Swift 1.1 → Swift 2.1ͷ͍࣌ͷʹͳΒͳ ͔ͬͨ • Swift 2.2 → Swift 3.0ͷ͍࣌ͷʹͳΒͳ ͔ͬͨ ← New!
ͦΕͰແ͍ΑΓϚγ • UIKitͷmethodͷม • Enumͷupper case → lower caseม •
NSPrefixͷϥΠϒϥϦͷม
ͻͨ͢Βಓͳ࡞ۀ • CurryԽͨ͠ϝιουͷमਖ਼ public static func log(level level: Level)(@autoclosure name:
() -> String) (@autoclosure message: () -> String) -> String { if level.rawValue <= Logger.currentLevel.rawValue { let full = "\(level.description): \(name()) - \(message())" print(full) return full } return "" }
ͻͨ͢Βಓͳ࡞ۀ • CurryԽͨ͠ϝιουͷमਖ਼ public static func log(level: Level) -> ((@escaping
() -> String) -> ((@escaping () -> String) -> String)) { return { (name: @escaping (() -> String)) in return { (message: @escaping (() -> String)) in if level.rawValue <= Logger.currentLevel.rawValue { let full = "\(level.description): \(name())) - \(message())" print(full) return full } return "" } } }
ͻͨ͢Βಓͳ࡞ۀ • closureʹ@escapingͷՃ
ͻͨ͢Βಓͳ࡞ۀ • Ҡߦπʔϧ͕มͨ͠Օॴͷमਖ਼ Date as NSDate as Date String as
NSString as String
ͻͨ͢Βಓͳ࡞ۀ • Testͷमਖ਼
None
Recap
w Ͱ͖ΕೋͱΓͨ͘ͳ͍ w ίϯϑϦΫτղফͷͨΊɺݽಠͳ࡞ۀ ͱͳΔ w ৺Λࢼ͞ΕΔ Recap
None
͋Γ͕ͱ͏͍͟͝·ͨ͠