Swift 4.0 対応しようとしたら大変な目に遭った話

Swift 4対応するときのエモい話

Transcript

1. 4XJGU
   
   ରԠ͠Α͏ͱͨ͠Β
   େมͳ໨ʹૺͬͨ࿩ for iOSDC Japan 2017
2. ΤϞ͍࿩ ࠓ೔͸ ˞4XJGU
   
   ͷݴޠ࢓༷ͷ࿩͸͋Γ·ͤΜɻ
3. override init() { super.init() emplyedBy = "MAGES. 5pb. Game div" job = "iOS Developer" twitter = "@lovee" qiita = "@lovee" github = "el-hoshino" additionalInfo = "དྷ݄స৬͠·͢ʘ(^o^)ʗ" class Speaker: Developer { } }
4. 4XJGU
   
   ରԠɺ
 ͍ͯ͠·͔͢ʁ
5. ࢲ͸
   88%$
   ௚ޙ͔Β
 ͍ͯ͠·͢ʂ
6. 
   ˠ
   
   
   ˠ
   
   
   ˠ
    
   
   
   ☠
   
7. ௐࢠʹ৐ͬͯ
 ͠·ͬͨ
8. ຊ೔ͷ ओ໾
9. 1MPU
   3FWJFX
   "QQMJDBUJPO
   7JB
   %BUBJOQVU
   "TTJTUBOU
10. 13"7%" "%7
    ήʔϜγφϦΦ
 ϨϏϡʔΞϓϦ༻
 ϑϨʔϜϫʔΫ
11. 13"7%" νϟϓλʔϑϩʔͰ ಡΈ͍ͨষΛબͿ
12. 13"7%" ͦͷষͷ࠷ॳͷ
 γφϦΦϑΝΠϧΛ ಡΉ
13. 13"7%" ηϦϑʹධՁΛ ͚ͭΔ
14. 13"7%" ͜ͷϑΝΠϧࣗମٴͼ
 ͜ͷϑΝΠϧʹ
 ొ৔ͨ͠ΩϟϥΛධՁ
15. 13"7%" ࣍ͷϑΝΠϧ΁ ਐΉ
16. 13"7%" ষ຤Ͱ͜ͷষͷ ײ૝Λ࢒͢
17. 13"7%" ৽͍͠νϟϓλʔ͕ ղআ͞Εɺ
 νϟϓλʔϑϩʔ΁
18. 13"7%" UITableView
 UIPageView UISlider UIPanGestureRecognizer FUDʜ
19. 13"7%"
    ։ൃ࣌αϚϦʔ ▸ ։ൃ։࢝࣌ɿ4XJGU
    
    ຤ظ
    ▸ ౰࣌ґଘ؀ڥɿࣗ࡞ϑϨʔϜϫʔΫ
    &MUBTP ݩڟͦͷҰ ݩڟͦͷೋ
20. 13"7%"
    ։ൃ౰ॳͷεΩϧ͸ະख़ͩͬͨ ▸ J04
    ։ൃʹͦͦ͜͜׳Ε͖ͯ࢝Ίͨࠒ
    ▸ ઃܭʹؾΛ഑Γ࢝Ί͕ͨܦݧઙ͔ͬͨͨΊ·ͩ؁͔ͬͨ
    ▸ σʔλϑϩʔ͕ෳࡶͰಈ࡞Λ௥͍ʹ͔ͬͨ͘
    ▸ ʮڞ௨ͷઃఆ͔ͩΒΈΜͳ࢖͏ʯͱ͍͏୯७ͳཧ༝Ͱ
    4JOHMFUPO
    Λ࢖͍΍ ͕ͬͨ
    ▸ ͱΓ͋͑ͣ
    4XJGU
    
    ʹ্͛ͯΈͨΒ΄ͱΜͲमਖ਼͍Βͣ
    ▸ ͔͔ͤͬͩ͘ΒؾʹͳͬͨϙΠϯτ௚ͦ͏ͱࢥͬͨ
    ▸ ্هͷઃܭͷ؁͞Ͱେ෯ͳॻ͖׵͑Λڧ͍ΒΕͨ
21. 13"7%"
    ։ൃ࣌αϚϦʔ ▸ ։ൃ։࢝࣌ɿ4XJGU
    
    ຤ظ
    ▸ ౰࣌ґଘ؀ڥɿࣗ࡞ϑϨʔϜϫʔΫ
    &MUBTP ݩڟͦͷҰ ݩڟͦͷೋ
22. &MUBTP
    ͱ͸Կ͔ ▸ 4XJGU
    ʹ͋Γͦ͏Ͱͳ͔ͬͨ৭ΜͳศརͳػೳΛ੝ΓࠐΜͩ൚༻ϑϨʔϜϫʔΫ
    ▸ CGPoint
    ಉ࢜ͳͲͷ଍͠ࢉҾ͖ࢉ
    ▸ ܾ·ͬͨൣғ಺ͷཚ਺ੜ੒
    Int.makeRandom(within: 0 ..< 10)
    ▸ ഑ྻͷγϟοϑϧ
    [1, 2, 3, 4, 5].shuffled
    ▸ ͳͲͳͲʜ
    ▸ ࠷ॳ͸ϋοΧιϯͷ࣌ͷίʔσΟϯάޮ཰ͷͨΊʹ࡞ͬͨ
    ▸ ࡞ͬͯΔ͏ͪʹʮ࣮຿ʹ΋ศར͡ΌͶʯͱࢥͬͯ࢖͍࢝Ίͨ IUUQTHJUIVCDPNFMIPTIJOP&MUBTP
23. &MUBTP
    ͷԿ͕มΘ͔ͬͨ ▸ ͿͬͪΌ͚࡞ͬͨ౰ॳ͸Կ΋ਂ͘ߟ͑ͣʹػೳ੝ΓࠐΜͰͨ
    ▸ 4XJGU
    
    ˠ
    
    ͷ࣌ͷίʔυमਖ਼͚ͩͰେมͩͬͨͷͰͦΕʹઐ೦ͨ͠
    ▸ 4XJGU
    
    ˠ
    
    ͷࠓ͸ίʔυमਖ਼΄΅ͳ͔ͬͨͷͰʮ༨ܭʯͳ͜ͱߟ͑࢝Ίͨ
    ▸ ͜ͷ
    "1*
    ઃܭ͸ຊ౰ʹެࣜΨΠυϥΠϯʹଇͬͯΔ͔Ͳ͏͔
    ▸ ͜Ε͸ຊ౰ʹ
    &MUBTP
    ʹೖΕΔ΂͖ػೳ͔ʢಠཱͤ͞Δ΂͖͔ʣ
    ▸ 5BSHFUFE
    &YUFOTJPOT
    ͷಋೖʢ
    xxx.rx.doSth()
    Έ͍ͨͳॻ͖ํʣ
    ▸ ࢖͍ํ͕ΨϥϦͱมΘͬͯ
    &MUBTP
    ґଘͷϓϩδΣΫτ͕େมͳ͜ͱʹ IUUQTHJUIVCDPNFMIPTIJOP&MUBTP
24. /PU"VUP-BZPVU
    Λ৽ͨʹಋೖͨ͠ ▸ ౰ॳ΋શͯͷϨΠΞ΢τ͸ίʔυϕʔεͩͬͨ
    ▸ ϨΠΞ΢τ͸શͯ
    layoutSubviews()
    ͷ
    override
    ͰରԠͨ͠
    ▸ ೝ͕ࣝ଍Γͣɺ௚઀
    layoutSubviews()
    Λݺͼग़͢Օॴ΋͋ͬͨ
    ▸ ࢠϏϡʔΛϓϩύςΟʔͱͯ͠อ࣋͢Δඞཁ͕͋ͬͨ
    ▸ ผͷϓϩδΣΫτͷ੍࡞࣌ʹ
    /PU"VUP-BZPVU
    Λ࡞ͬͨ
    ▸ layoutSubviews()
    Λඞͣ͠΋
    override
    ͢Δඞཁ͕ͳ͘ͳͬͨ
    ▸ ࢠϏϡʔͷϨΠΞ΢τΛ਌ϏϡʔͷϓϩύςΟʔͱͯ͠อ࣋Ͱ͖ΔͨΊ
 ࢠϏϡʔࣗମΛϓϩύςΟʔͱͯ͠อ࣋͢Δඞཁ͕ͳ͘ͳͬͨ
    ▸ ʲએ఻ʳචऀݱࡏͷϝΠϯ
    044
    ϓϩδΣΫτʂ IUUQTHJUIVCDPNFMIPTIJOP/PU"VUP-BZPVU
25. ݁Ռɿ
    ຆͲॻ͖׵͑ʹ
26. FlowContentControllerʢچʣ fileprivate lazy var chapterButtons: [FlowChapterButton] = { let chapters = GlobalSettings.shared.chapterMetas let buttons = chapters.enumerated().map { (i, chapterMeta) -> FlowChapterButton in let button = FlowChapterButton(meta: chapterMeta) button.setOnTappedAction({ [weak self] _ in self?.didSelectChapter(i) }) return button } return buttons }()
27. FlowContentControllerʢ৽ʣ private lazy var chapterButtons: [FlowChapterButton] = { let chapters = self.model.getChapters(for: self) let buttons = chapters.map { (chapter) -> FlowChapterButton in let button = self.makeButton(for: chapter) return button } return buttons }()
28. FlowControllerʢچʣ override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. do { let controller = self.flowContentController controller.delegate = self controller.dataSource = self.dataSource self.addChildViewController(controller) self.flowView.contentView = controller.view controller.didMove(toParentViewController: self) } do { let controller = self.pageHeaderController controller.setHeaderTitleString("νϟϓλʔબ୒") self.addChildViewController(controller) self.flowView.header = controller.view controller.didMove(toParentViewController: self) } }
29. FlowControllerʢ৽ʣ override func viewDidLoad() { super.viewDidLoad() self.setupContentController() self.setupHeaderController() }
30. ScenarioModelʢ৽چࠩ෼ʣ
31. ➡ େมͩͬͨ ͚Ͳ
    ಡΈ΍͢͞ େ෯ʹ㽉
32. ͱࢥͬͨΒࠓ౓͸
    J1IPOF
    9
    ͷొ৔ͩ
34. Ͱ΋ؤுͬͯ
    
    ೔Ͱ
 /PU"VUP-BZPVU
    Λ
 TBGF"SFB*OTFUT
    ʹ
 ରԠͤͨ͞
36. چ ৽
37. ʲએ఻ʳ
 /PU"VUP-BZPVU
    
 ޷ධެ։தʂ IUUQTHJUIVCDPNFMIPTIJOP/PU"VUP-BZPVU
38. ڭ܇ͦͷҰ ▸ 4JOHMFUPO
    ͸͖ͪΜͱ࢖͏΂͖͔Λߟ͔͑ͯΒ࢖͑
    ▸ ʮΠϯελϯε͕Ұݸ͔͠ͳ͍ʯ͸
    4JOHMFUPO
    Λ࢖͏ཧ༝ʹͳΒͳ͍
    ▸ ʮΈΜͳڞ௨ͯ͠࢖͏ʯ΋
    4JOHMFUPO
    Λ࢖͏ཧ༝ʹͳΒͳ͍
    ▸ ʮ୭΋͍ͭ͜ʹ੹೚Λ࣋ͯΔʹ஌Γਚ͘͢͜ͱ͕ڐ͞ΕΔʯ΋ͷ͚ͩ
    4JOHMFUPO
    Λ࢖͍͍ͬͯ
39. ڭ܇ͦͷೋ ▸ ઃܭ͸͖ͪΜͱอक͢Δ࣌ͷࣗ෼Λߟ͑ͯઃܭ͠Ζ
    ▸ ѱ͍ઃܭ͸ॻ͘ͱ͖͸ศར͔΋͠Εͳ͍͕อक࣌ʹࢮ͵
    ▸ อक࣌ʹͦͷѱ͍ઃܭΛ໨ʹ͢ΔͱͦΕΛॻ͍ͨࣗ෼ΛͿΜԥΓͨ͘ͳΔ
    ▸ Ͱ΋·͔͋ͱݴͬͯͿͬͪΌ͚ͦΕ͸ࣗ෼ͷεΩϧʹґଘ͢Δ΋ͷ͔ͩΒ ࠓ͸͖ͪΜͱͨͭ͠΋ΓͰ΋ଟ෼
    
    ೥ޙͷอक࣌ʹྺ࢙͸܁Γฦ͢
    ▸ ͦΕͰ΋ͦΕ͸εΩϧΞοϓͷূڌ͔ͩΒڪΕͣʹ੒௕͠·͠ΐ͏
40. ڭ܇ͦͷࡾ ▸ 'SBNFXPSL
    ͷଟ༻͸ґଘੑ͕େมͳ͜ͱʹͳΔ
    ▸ ࢖͍࢝Ίͨͱ͖͸͔֬ʹศར͚ͩͲґଘ͢Δ
    'SBNFXPSL
    ͕૿͑Δͱ
 ͦͷ෼͚ͩґଘؔ܎΋૿͑Δ
    ▸ 'SBNFXPSL
    ʹมߋ͕͋Δͱ࢖ͬͯΔϓϩδΣΫτͷमਖ਼΋༨ّͳ͘͞ΕΔ
    ▸ 'SBNFXPSL
    Λࣗ࡞͢ΔͱϓϩάϥϜઃܭʹ͍ͭͯΑΓਂ͘ߟ͑ͤͯ͘͞ΕΔ
    ▸ 'SBNFXPSL
    ͸ͦΕΛར༻͢ΔશͯͷϓϩδΣΫτʹӨڹΛٴ΅͢ͷͰ
    "1*
    ͷઃܭʹ͸ͱͯ΋ؾΛ͚ͭΔඞཁ͕͋Δ
41. ॳ৺ऀ΁ͷΞυόΠε ▸ ͱʹ͔͕͘Ή͠ΌΒʹ͍ͬͺ͍ॻ͖·͠ΐ͏ɻ
    ▸ Կ΋ߟ͑ͣʹॻ͘ͷͰ͸ͳ͘ɺྫ͑
    )PX
    ͕ཧղͰ͖ͳͯ͘΋ɺ8IBU
    ͱ
    8IZ
    Λཧղ͢Δ౒ྗΛ͠·͠ΐ͏ɻ
    ▸ ΍Γ͍ͨ͜ͱ͕Ͱ͖͔ͨΒͬͯࢥߟఀࢭͤͣɺΑΓྑ͍ॻ͖ํ͕ͳ͍͔΋ߟ͑· ͠ΐ͏ɻ
    ▸ ͍ͬͺ͍นʹͿ͔ͭͬͯઃܭʹ͍ͭͯͷཧղΛਂΊ·͠ΐ͏ɻ
    ▸ 2JJUB
    ΍
    5FSB5BJM
    ΋ྑ͍Ͱ͕͢ɺެࣜυΩϡϝϯτ΋ͪΌΜͱಡΈ·͠ΐ͏ɻ
    ▸ ൒೥લͷࣗ෼͕ॻ͍ͨίʔυ͕ΫιͩͱࢥΘͳ͔ͬͨΒ੒௕͕ࢭ·ͬͨূڌʂ
42. ͋Γ͕ͱ͏
 ͍͟͝·ͨ͠ʂ