AbemaTVにおけるiOSアーキテクチャの課題解決 / Solving problems in AbemaTV iOS architecture

AbemaTV iOSの5年の運用の中で発生した設計課題とその解決方法について

Transcript

1. "CFNB57ʹ͓͚Δ
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4. 
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7. 
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11. 
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    νʔϜਓ਺    ࣌ؒ ਓ਺ ୈ̍ੈ୅ ୈ̎ੈ୅ ୈ̏ੈ୅
12. ୈ̍ੈ୅ w࣌ظ
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13. ࠾༻
    'MVY 3Y4XJGU Facebook https://facebook.github.io/flux/docs/in-depth-overview/
14. ୈ̍ੈ୅
    'MVY 6*Πϕϯτ ঢ়ଶΛ؂ࢹͯ͠6*΁൓ө
15. ୈ̍ੈ୅
    "DUJPO func getElement() { dispatcher.isLoading.dispatch(true) APIClient.getElement() .do(onError: { [weak self] error in self?.dispatcher.error(error) // Τϥʔ }) .do(onCompleted: { [weak self] in self?.dispatcher.isLoading.dispatch(false) // ׬ྃ }) .subscribe(onNext: { [weak self] element in self?.dispatcher.element.dispatch(element) // ੒ޭ }) .disposed(by: disposeBag) }
16. ୈ̍ੈ୅
    %JTQBUDIFS final class Dispatcher { static let shared = Dispatcher() let element = DispatchSubject<Element>() let isLoading = DispatchSubject<Bool>() let error = DispatchSubject<Error>() }
17. ୈ̍ੈ୅
    4UPSF final class Store { static let shared = Store() let isLoading: Property<Bool> let element: Property<Element> init(dispatcher: Dispatcher) { // dispatcher͔ΒྲྀΕ͖ͯͨΠϕϯτΛbind͢Δ } }
18. ୈ̍ੈ୅
    6* override func viewDidLoad() { super.viewDidLoad() // ActionʹΠϕϯτΛൃՐ Action.shared.getElement() // ߋ৽͞Εͨঢ়ଶΛUIʹbind Store.shared.element.asObservable() .bind(to: titleLabel.rx.text) .diposed(by: disposeBag) }
19. ୈ̍ੈ୅
    'MVY 6*Πϕϯτ ঢ়ଶΛ؂ࢹͯ͠6*΁൓ө
20. ୈ̍ੈ୅ͷྑ͍఺ w7JFXؒͷґଘؔ܎͕ݮΔ
    w։ൃऀͷ࣮૷͕౷Ұ͞Ε΍͍͢
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21. ୈ̎ੈ୅ w ࣌ظ
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22. ୈ̍ੈ୅ͷ՝୊ w ػೳͷෳࡶԽʹΑΓɺ4UPSF΍6*ͷϥΠϑ αΠΫϧͷ߹੒ϩδοΫ͕7JFX$POUSPMMFS ʹ૿͑ͨ
23. ୈ̍ੈ୅ͷ՝୊ override func viewDidLoad() { super.viewDidLoad() // ঢ়ଶͷߋ৽·ͨ͸λςϤίͷ੾Γସ͑ΛϑοΫͯ͠tableViewΛϦϩʔυ Observable.combineLatest( Store.shared.repositories.asObservable(), rx.traitCollectionDidChange.asObservable() ) .observeOn(MainScheduler.instance) .subscribe(onNext: { [weak self] _ in self?.tableView.reloadData() }) .disposed(by: disposeBag) … }
24. ࠾༻
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25. ୈ̎ੈ୅
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26. ୈ̎ੈ୅
    7JFX4USFBN final class ViewStream { // Output let element: Property<Element> let isLoading: Property<Bool> init( // Input viewDidLayout: Observable<Void>, traitCollectionDidChange: Observable<Void>, // Dependency action: Action = .shared, store: Store = .shared ) { // InputͷΠϕϯτΛ΋ͱʹOutputΛ߹੒͢Δ } }
27. ୈ̎ੈ୅ͷྑ͍఺ w7JFX$POUSPMMFSͷ࣮૷Λ6*Πϕϯτͷ఻ൖͱঢ়ଶ Λ6*ʹόΠϯυ͢ΔͷΈʹͰ͖ͨ
    wϓϨθϯςʔγϣϯϩδοΫΛ6*͔Β෼཭Ͱ͖ɺ ୯ମςετָ͕ʹ͔͚Δ
    wάϩʔόϧͰอ࣋͢Δඞཁ͕ͳ͍ը໘ͷҰ࣌ঢ়ଶ Λ6*ͷϥΠϑαΠΫϧͰഁغͰ͖Δ
28. 
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29. ୈ̎ੈ୅ͷ՝୊ w 7JFX4USFBNͷ࣮૷ํ๏͕࣮૷ऀʹΑͬͯ ͹Β͖͕ͭ͋Δ
30. ୈ̎ੈ୅ͷ՝୊ class SearchViewStream { // Output let repositories: Property<[Repository]> private let _repositories = BehaviorRelay<[Repository]>(value: []) private let _search = PublishRelay<String>() private let disposeBag = DisposeBag() init( // Dependency action: Action = .shared store: Store = .shared ) { // Input ⇨ Output Logic } // Input func search(_ text: string) { _search.accept(text) } }
31. ୈ̎ੈ୅ͷ՝୊ class SearchViewStream { // Output let repositories: Property<[Repository]> private let _repositories = BehaviorRelay<[Repository]>(value: []) private let _search = PublishRelay<String>() private let disposeBag = DisposeBag() init( // Dependency action: Action = .shared store: Store = .shared ) { // Input ⇨ Output Logic } // Input func search(_ text: string) { _search.accept(text) } }
32. ୈ̎ੈ୅ͷ՝୊ class SearchViewStream { // Output let repositories: Property<[Repository]> private let _repositories = BehaviorRelay<[Repository]>(value: []) private let disposeBag = DisposeBag() init( // Input search: Observable<String> // Dependency action: Action = .shared store: Store = .shared ) { // Input ⇨ Output Logic } }
33. ୈ̎ੈ୅ͷ՝୊ class SearchViewStream { // Input let search = PublishRelay<String>() // Output let repositories: Property<[Repository]> private let _repositories = BehaviorRelay<[Repository]>(value: []) private let _search = PublishRelay<String>() private let disposeBag = DisposeBag() init( // Dependency action: Action = .shared store: Store = .shared ) { // Input ⇨ Output Logic } }
34. ߟҊ
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35. ୈ̏ੈ୅ w ࣌ظ
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36. ୈ̏ੈ୅
    6OJP class SearchViewModel: UnioStream<SearchViewModel>, SearchViewModelType { struct Input: InputType { let search = PublishRelay<String>() } typealias State = NoState struct Output: OutputType { let repositories: Observable<[Repository]> } struct Extra: ExtraType { let action: Action let store: Store } static func bind(from dependency: Dependency<Input, State, Extra>, disposeBag: DisposeBag) -> Output { // Dependency ⇨ Output Logic return Output(repositories: ${repositoriesΛฦ͢ม਺}) } }
37. ୈੈ୅ͷྑ͍఺ w7JFX.PEFMͷ࣮૷ͷ౷Ұ͕࣮ݱͰ͖ͨ
    w7JFX.PEFMͷϩδοΫͷྲྀΕ͕୯Ұํ޲ͳ ͷͰՄಡੑ্͕͕ͬͨ
38. ୈ̏ੈ୅
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39. 
    ݱࡏͷ՝୊
40. 
    ݱࡏͷ՝୊ wਐԽ͍ͯ͘͠աఔͰલੈ୅ͷ࣮૷͕࢒͍ͬͯΔ
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41. ·ͱΊ wઃܭͷมߋͷλΠϛϯά͸શػೳΛ࡮৽͢ Δͱ͖΍େ͖ͳػೳ։ൃ͕ೖΔͱ͖
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42. ࢀর w 'MVY
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