Swiftで作るiPhoneアプリ入門

2015/03/24 ヒカラボ
簡単なアプリ作り＆Swiftで気をつけたいポイント

Transcript

1. SwiftͰ࡞ΔiPhoneΞϓϦೖ໳ ώΧˑϥϘ 2015/03/24
2. • ࣣౡҒ೭ʢͳͳ͠·ͻͰΏ͖ʣ • Repro.Inc / ໺ྑΤϯδχΞ • iPhone / Android • Java -> Objective-C -> Swift
3. ΋͏͙͢ຊ͕ग़·͢ • 2015/04/10ɹٕज़ධ࿦͔ࣾΒൃച
4. teratailͰ΋ͨ·ʹؤுͬͯΔ
5. Repro
7. Repro
8. ໨࣍ 1. SwiftͰͪΐʔ؆୯ͳΞϓϦΛ࡞Δ • ϘλϯΛԡͨ͠ΒͳΜ͔͢Δ 2. SwiftνΣοΫϙΠϯτ • letͱvar • ܕ • Φϓγϣφϧ • ObjCͷϥΠϒϥϦ
9. 1. SwiftͰͪΐʔ؆୯ͳΞϓϦΛ࡞Δ
10. ͷલʹ
11. Swift 1.2 • 2015/02/09 Xcode6.3 betaͱڞʹൃද • ͍Ζ͍Ζ҆ఆˍػೳڧԽ • It does include some source-incompatible changes that require updates to your code
 
 ※ Ұ෦Swift 1.1·Ͱͷॻ͖ํͩͱΤϥʔʹͳΔ
12. Swift 1.2 ࣗಈͰ࠷৽ͷSwiftʹม׵͢Δػೳ͸͋Δ͕ɺɺɺ
 ʢͪΐͬͱ͔͠ม׵ͯ͘͠Εͳ͔ͬͨʣ
13. ͱ͍͏͜ͱͰ
14. ࠷ॳ͔ΒSwift 1.2 & Xcode6.3Ͱ࡞Δ https://github.com/jollyjoester/SwiftTrial/wiki ΄͛ʙ Ϙλϯ
15. 2. SwiftνΣοΫϙΠϯτ
16. Swiftͷಛ௃ • ߴ଎ • Ϟμϯ • ҆શ • ΠϯλϥΫςΟϒ
17. Swiftͷಛ௃ • ߴ଎ • Ϟμϯ • ҆શ • ΠϯλϥΫςΟϒ
18. letͱvar • let : ࠶୅ೖېࢭ
 ͱΓ͋͑ͣletͰએݴɺඞཁʹԠͯ͡var
19. letͱvar • ഑ྻ͸varͰએݴ͢ΔͱMutableʹͳΔ
20. ܕݫ͍͠ • ҉໧Ωϟετͳ͍ͷͰࣗ෼Ͱม׵
21. ܕݫ͍͠ • ม਺એݴ࣌ʹ໌ࣔతʹܕΛࢦఆ͢Δͷ͕Better
 ʢίϯύΠϧ΋ૣ͘ͳΔͬΆ͍ʣ
22. Optionalܕ • Optionalܕɿnil͔΋͠Εͳ͍஋
 nilɿ஋͕ͳ͍͜ͱΛࣔ͢ɻ
 ศར͚ͩͲةݥɻར༻͸࠷খݶʹɻ
23. OptionalܕͱΞϯϥοϓ • toInt()͸OptionalܕΛฦ͢
 ʢIntʹม׵Ͱ͖ͳ͍஋ͷ৔߹͸nilΛฦͨ͢Ίʣ • Optionalܕ͔Β஋ΛऔΓग़͢ʹ͸Ξϯϥοϓʂ
24. Implicitly Unwrapped Optionalܕ • nilΛڐ༰͢Δ͚Ͳ௚઀ม਺ʹΞΫηεͰ͖Δ
 ʢIBOutletͰࣗಈతʹੜ੒͞ΕΔͱ͖ʹΑ͘ݟΔʣ
25. Objective-Cͱͷڞଘ • Bridging-HeaderΛ࡞Δ ʢObjective-CͷΫϥεΛ࡞Ζ͏ͱ͢ΔͱࣗಈͰ࡞੒͞ΕΔʣ • Objective-CͷطଘϥΠϒϥϦΛ࢖͏ͱ͖ʹ
26. ϝιουͷॻ͖ํ • Objective-C • Swift
27. Have a nice Swift life