Responder Chainを使って コードをスッキリさせたい - 第1回 HAKATA.swift

https://hakata-swift.connpass.com/event/81656/ での発表です。

Transcript

1. Responder ChainΛ࢖ͬͯ ίʔυΛεοΩϦ͍ͤͨ͞ HAKATA.swift @ukitaka
2. twitter: @ukitaka_ github: @ukitaka Yuki Takahashi
3. ࣗݾ঺հ ❤ ؔ਺ܕϓϩάϥϛϯάɺDDD ✏ ܕγεςϜɺίϯύΠϥ ௿ϨΠϠʔ
4. ࠓ೔ͷ࿩
5. ͍͖ͳΓͰ͕͢ɺ ͜ΜͳέʔεΛߟ͑ͯΈΔ
6. Cellͷதͷ ϘλϯΛλοϓͨ͠Β Alert / ActionSheetग़͍ͨ͠
8. ͋Γ͕ͪ
9. ஍ຯʹΊΜͲ͍͘͞ • UIAlertControllerΛग़͢ʹ͸ViewControllerͰ ॲཧΛ͢Δඞཁ͕͋Δ • Cell͸ViewControllerͳΜͯ஌Βͳ͍ • ViewController΋CellͷϘλϯΛ(ී௨͸)௚઀ࢀ র͍ͯ͠ͳ͍
10. Α͋͘Δରॲ๏ • DelegateΛҾճ͢ • ֊૚͕ਂ͘ͳΕ͹ͳΔ΄Ͳਏ͍ • Viewߏ଄ͷมԽʹऑ͍
11. ͳΜͱ͔͍ͨ͠
12. ݪ఺ʹཱͪฦͬͯMVC
13. MVCͰ͸Ͳ͏͋Δ΂͖ʁ
16. ϢʔβΞΫγϣϯͷॲཧ • MVCʹ͓͚ΔControllerͷΑ͏ͳΦϒδΣΫ τʹ௨஌Λͯ͠ϢʔβΞΫγϣϯड͚ͱΔͷ ͕ී௨ • MVCʹݶΒͣɺͲͷΞʔΩςΫνϟͰ͋ͬͯ ΋ಉ͡
17. ௨஌Λ͠Α͏
18. ཧ૝
19. ௨஌͢ΔଆΠϝʔδ .notifyΛݺͿ͚ͩ
20. ௨஌Λड͚औΔଆΠϝʔδ ͍͍ײ͡ʹDelegateͰड͚औΕΔ
21. DelegateΛҾճ͢ඞཁ͕ͳ͍ DelegateύλʔϯͷΑ͏ͳ Πϝʔδ
22. ͦ͜Ͱ Responder Chain
23. = UIResponderͷ࿈ͳΓ
25. UIResponder • UIReponder = ϢʔβͷೖྗΛर͑Δ΍ͭ • ͋ΔsubviewͰΠϕϯτΛर͏ͱॲཧͰ͖Δͱ ͜Ζ·Ͱ࣍ʑʹॲཧΛճ͍ͯ͘͠ • self.next Ͱ࣍ͷResponder͕औΕΔ = Responder Chain
27. UIResponder • ResponderChain্ʹ͸౰વViewController΋ ͍Δʂ • DelegateΛҾ͖ճ͢·Ͱ΋ͳ͘ɺ͢Ͱʹͭͳ ͕͍ͬͯΔ • ͜Εʹ৐͔ͬΕ͹͍͍ײ͡ʹViewControllerʹ ʮ௨஌ʯͰ͖ͦ͏ʂ
28. ͳΜ͔࢖͑ͦ͏
29. Ͳ͏΍Δ͔ʁ
30. ActionΛఆٛ͢Δ
31. DelegateΛఆٛ͢Δ
32. ViewEventΛఆٛ͢Δ ୭͕ϋϯυϧ͢Δ͔ͱɺ Ͳ͏σΟεύον͢Δ͔ΛܾΊΔɻ
33. ViewEventΛఆٛ͢Δ
34. UIResponderΛ֦ு͢Δ Responder ChainΛḷͬͯɺ ΠϕϯτΛϋϯυϧͰ͖Δ΍ͭΛݟ͚ͭΔ
35. ׬੒ʂ
36. ௨஌͢ΔଆΠϝʔδ .notifyΛݺͿ͚ͩ
37. ௨஌Λड͚औΔଆΠϝʔδ ͍͍ײ͡ʹDelegateͰड͚औΕΔ
38. ཧ૝ͷੈք͕࣮ݱͨ͠
39. ྑ͍఺ • DelegateΛViewͷਂ͍֊૚·ͰҾճ͢ඞཁ͕ ͳ͘ͳͬͨ • Viewͷ֊૚͕มԽͨ͠ͱͯ͠΋ɺίʔυͷม ߋ͕ෆཁɻViewͷมߋʹڧ͍ɻ
40. มΘΒͳ͍఺ • ͋ΔΠϕϯτΛड͚औΔͨΊͷprotocol࣮૷ ͠๨ΕΛίϯύΠϧ࣌ʹ͸ݕग़Ͱ͖ͳ͍ • ͜Ε͸Delegateઃఆ͠๨ΕͰ΋ಉ͡ • ࣮ࡍʹಈ͔͢ or ςετͰΧόʔ
41. RxCocoa΁ͷԠ༻
42. RxCocoa + Responder Chain • RxΛ࢖͍ͬͯͯ΋ಉ͡໰୊͕ى͜Δ • RxDataSourcesΛ࢖͍ͬͯͯ΋ɺCellͷதͷΠ ϕϯτ͸र͑ͳ͍ • Responder Chainʹྲྀͯ͠͠·͓͏
43. ukitaka/RxResponderChain
44. ࢖͍ํ
45. ࡶʹResponder Chainʹྲྀ͢ Ϙλϯ͕λοϓ͞ΕͨΒ
46. ࡶʹResponder Chainʹྲྀ͢ ద੾ͳܕʹม׵ͯ͠
47. ࡶʹResponder Chainʹྲྀ͢ Responder Chainʹྲྀ͢
48. ࡶʹVCͰड͚औΔ ViewControllerͰ ܕΛࢦఆͯ͠ड͚औΔ
49. গ͚࣮ͩ͠૷ΛΈΔ
50. ࣮૷ͷཪଆ ࠇຐज़ʹΑ֤ͬͯUIResponderΦϒδΣΫτʹ PublishSubjectΛ࣋ͨͤΔ
51. ࣮૷ͷཪଆ self.rx.responderChain Λੜ΍͢
52. ࣮૷ͷཪଆ ͜ͷΦϒδΣΫτ͸ObserverType
53. ࣮૷ͷཪଆ ઒ʹEvent͕ྲྀΕ͖ͯͨΒ ResponderChainΛḷͬͯ
54. ࣮૷ͷཪଆ ͖ͬ͞ੜ΍ͨ͠PublishSubjectʹ ΠϕϯτΛྲྀ͢
55. ࣮૷ͷཪଆ ड͚औΔͱ͖͸ܕͰfilter
56. ·ͱΊ
57. ResponderChain • View → ViewController͸Responder Chainܨ ͕͍ͬͯΔ • ௨஌ʹ࢖͑Δ / ָʹॻ͚Δ / มߋʹڧ͍
58. ͓ΘΓ