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Nagoya iOS meetup Vol. 4 @ ヤフー株式会社 名古屋オフィス #nagoyaios
https://nagoya-ios-meetup.connpass.com/event/95974/

1. ՖՇΞϓϦΛ࡞ͬͨ 2018.8.20 - Nagoya iOS meetup Vol. 4 Satoshi Hachiya (@jpmartha_jp)
2. Satoshi Hachiya (@jpmartha_jp)
3. ࿩͢಺༰ • αʔϏεͷ֓ཁ • iOS ΞϓϦͷ։ൃ؀ڥ • ͍͔ͭ͘ͷ՝୊ͱղܾࡦ
4. αʔϏεͷ֓ཁ
5. ΞʔϧΩϡʔϒͷαʔϏε • ձඅࠗ • https://www.kaihikon.com • ϋφίϨ • https://hana-collection.com ໿40໊தɺΤϯδχΞ͸4໊
6. ձඅࠗ ձඅ੍ʹಛԽͨ݁ࠗࣜ͠αʔϏε ձඅࠗ͸ձඅ੍ͷ݁ࠗࣜʹಛԽͨ͠೔ຊͰॳΊͯͷαʔϏεͰ ͢ɻਓؾϗςϧ΍ߴڃϨετϥϯͰ݁ࠗࣜΛ໿൒ֹͰɺ͔͠΋ޙ ෷͍Λ࣮ݱ͠·ͨ͠ɻ https://www.kaihikon.com
7. https://medium.com/family-lifehack/wedding-4339917360e1
8. ϋφίϨ ཧ૝ͷ͕݁ࠗࣜͭ͘ΕΔαʔϏε ࣮ࡍͷଔՖՇ͞Μͷ࣮ྫهࣄ΍঎඼ࣸਅͳͲ༷ʑͳ݁ࠗࣜͷΞΠ σΞ͔Βཧ૝ͷ݁ࠗࣜΛݟ͚ͭग़͠ɺΦϦδφϧͷ݁ࠗࣜΛ࡞Ε ΔαʔϏεͰ͢ɻ https://hana-collection.com
10. ϋφίϨ iOS ΞϓϦ ✨"✨ ʮϋφίϨʯͰݕࡧ https://itunes.apple.com/jp/app/id1325522339
11. iOS ΞϓϦͷ։ൃ؀ڥ
12. iOS ΞϓϦͷ։ൃ؀ڥ • Realm (Database) • Firebase (Crashlytics) • Bitrise • fastlane • SwiftLint ! DB ͸طଘͷ΋ͷʢFirebase Ͱ͸ͳ͍ʣ
13. ෼ੳ • Firebase (Analytics) • BigQuery • Google Data Studio • …
14. ͍͔ͭ͘ͷ՝୊ͱղܾࡦ
15. ՝୊ͦͷ1 ࣗ෼͕ՖՇ͡Όͳ͍
16. ࣗ෼͕ՖՇ͡Όͳ͍ • ͳͥͦͷػೳ͕ඞཁͳͷ͔ೲಘ͍ͯ͠ͳ͍෦෼͕͋ͬͨ • ΍Δ͜ͱ͕ͨ͘͞Μ͋ͬͯࡉ͔͍഑ྀΛ͍ܽͨ • ͩ͜ΘΔϙΠϯτ͕ҧͬͨ
17. ͓·͚ʹ • Ұ౓ͷΞοϓσʔτͰେ෯ʹมߋͨ͠ ! ظ଴͞Εͨ΋ͷͱҧ͏΋ͷ͕Ͱ͖͍ͯͨ
18. ͻͱͭͷλεΫΛ࠷খݶʹ • খࠁΈʹςετ഑৴ͯ͠۩ମతʹΠϝʔδ͠ͳ͕Β࡞ΓࠐΉ • ͦͯ͠ڍ͕ͬͨࡉ͔͍ཁ๬Λ൓өͤ͞Δ • ฒߦͯ͋͠Ε͜Ε΍Βͳ͍ • ࠩ෼͕େ͖͗͢Δͱଥڠͨ͠ΓϛεΛݟམͱ͠΍͍͢
19. ՝୊ͦͷ2 ॳΊͯͷ iOS ΞϓϦ։ൃ ʢͱͳͬͨϝϯόʔ͕͍Δʣ
20. Forced Unwrapping https://qiita.com/maiki055/items/b24378a3707bd35a31a8 ?ͱ!ͷ࢖͍෼͚͕෼͔ΒͣͱΓ͋͑ͣ"?"Λ͚ͭΔɺιʔείʔυ Λॻ͍͍ͯͨΒٸʹXcodeʹౖΒΕɺΤϥʔʹಋ͔ΕΔ·· ʹ"!"Λ͚ͭΔ... ! Ϋϥογϡ͢ΔՄೳੑ͕͋ΔͨΊΉ΍Έʹ࢖Θͳ͍
21. Swift ͷ if จʹ () ! ෆཁ
22. ͦͷଞͷࡉ͔͍ʁվળ
23. count == 0 ΑΓ isEmpty Λ࢖͓͏ ! ଎͍
24. if จΑΓ guard จͰ Early Exit ͠Α͏ ! ωετΛઙͯ͘͠ՄಡੑΛ޲্
25. UICollectionView ʹ͸ indexPath.row ΑΓ indexPath.item Λ࢖͓͏
26. ແବͳεϖʔεΛফͦ͏ • ελΠϧΛ౷ҰͰ͖͓ͯΒͣඒ͘͠ͳ͍ • Swift ͚ͩͷ࿩Ͱ͸ͳ͍
27. ͔͠͠
28. ͦͷ··Ͱ΋ ಈ͔͘ΒΑ͘ͳ͍ʁ
29. ਖ਼͍͠આ໌͕೉͍͠ • Τϥʔʹ͸ͳΒͳ͍ͷͰͦͷ··ϦϦʔεͰ͖Δ • ͳͥ޷·͘͠ͳ͍ͷ͔ͱ͍͏ࠜڌ͸ʁ ! جຊΛௐ΂௚ͨ͠
30. ࢀߟ: ֤ࣾͷ Swift ΨΠυϥΠϯ • https://google.github.io/swift/ • https://github.com/eure/swift-style-guide/ • https://github.com/recruit-lifestyle/swift-style-guide • https://github.com/cookpad/styleguide/blob/master/ swift.ja.md • https://qiita.com/susieyy/items/f71435cc962e70d81b37
31. ΨΠυϥΠϯͷ໨త • ಉ͡Α͏ͳ໎͍ΛԿ౓΋܁Γฦͣ͞ʹ͢·ͤΔ • ΄͔ͷϝϯόʔ͕ಡΈ΍͍͢Α͏ʹॻ͘ • ط஌ͷϦεΫΛճආ͢Δ
32. ͦͯ͠ SwiftLint Λ׆༻ • force_unwrapping • control_statement • empty_count • trailing_newline • vertical_whitespace ͳͲ
33. ՝୊ͦͷ3 ։ൃମ੍͕ສશͱ͸ݴ͑ͳ͍
34. શ෦Ұ͔Βߏங͢Δͷ͸େม
35. ࣗ෼Ͱߏங͢Δ͍͍ػձʂ શ෦Ұ͔Βߏங͢Δͷ͸େม
36. ଞࣾͷ؀ڥ͕Α͘ݟ͑Δ͜ͱ͕͋Δ ؾʹͳΔ͜ͱ͕ແݶʹग़ͯ͘Δ
37. ͕ɺߴ๬Έ͗͢͠ͳ͍Α͏ʹ͢Δ • ݁ہ͸ࣗ෼࣍ୈ • ·ͣ͸༩͑ΒΕͨ؀ڥͰશྗΛਚ͘͢΂͖ • ͍͔ʹࣗ෼ͱνʔϜΛ৳͹ͤΔ͔͕࿹ͷݟͤͲ͜Ζ
38. ࠓͷ͍͍ͱ͜ΖΛߟ͑Δ΄͏͕ ϙδςΟϒʹͳΕΔ
39. ·ͱΊ • ͻͱͭͷλεΫΛ࠷খݶʹͯ͠΍Δ΂͖͜ͱΛ໌֬ʹ͠Α͏ • ΋ͷ͝ͱΛਖ਼͘͠ཧղͯ͠ແବΛ࡟ݮ͠Α͏ • ·ͣ͸༩͑ΒΕͨ؀ڥͰશྗΛਚͦ͘͏
40. Thanks!