Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
5分で学ぶ差分更新とRxDataSources
Search
Yuji Hato
April 10, 2018
Technology
0
290
5分で学ぶ差分更新とRxDataSources
Learn in 5 minutes
Incremental updates and RxDataSources
Yuji Hato
April 10, 2018
Tweet
Share
More Decks by Yuji Hato
See All by Yuji Hato
ABEMAモバイルアプリ開発のDevOps戦略
dekatotoro
1
630
Multiplatform Engineering Roadmap for the Future
dekatotoro
1
130
Introduction to RIBs
dekatotoro
5
1.4k
継続的な開発スタイル 「AbemaTV iOSアプリを週一で リリースしている話」
dekatotoro
6
3.9k
iOS Adaptive UI - 解像度の異なるデバイスや画面の向きに対応する 最適なレイアウトへ -
dekatotoro
0
390
動画アプリをなめらかに動かす技術 - iOS -
dekatotoro
0
350
AbemaTV モバイルアプリの開発体制と 開発プロセスの話
dekatotoro
0
260
Apple TV - tvOS入門 -
dekatotoro
0
120
AbemaTV on Apple TV
dekatotoro
0
40
Other Decks in Technology
See All in Technology
IAMポリシーのAllow/Denyについて、改めて理解する
smt7174
2
160
【詳説】コンテンツ配信 システムの複数機能 基盤への拡張
hatena
0
100
室長と気ままに学ぶマイクロソフトのビジネスアプリケーションとビジネスプロセス
ryoheig0405
0
370
人はなぜISUCONに夢中になるのか
kakehashi
PRO
6
1.7k
Visualize, Visualize, Visualize and rclone
tomoaki0705
9
67k
OpenID BizDay#17 KYC WG活動報告(法人) / 20250219-BizDay17-KYC-legalidentity
oidfj
0
350
転生CISOサバイバル・ガイド / CISO Career Transition Survival Guide
kanny
3
1.1k
ソフトウェアエンジニアと仕事するときに知っておいたほうが良いこと / Key points for working with software engineers
pinkumohikan
1
130
Building Products in the LLM Era
ymatsuwitter
10
6.1k
なぜ私は自分が使わないサービスを作るのか? / Why would I create a service that I would not use?
aiandrox
0
880
Culture Deck
optfit
0
480
Goで作って学ぶWebSocket
ryuichi1208
3
2.3k
Featured
See All Featured
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
100
18k
A Philosophy of Restraint
colly
203
16k
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
Why You Should Never Use an ORM
jnunemaker
PRO
55
9.2k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
330
21k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
280
13k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
44
7k
YesSQL, Process and Tooling at Scale
rocio
172
14k
Writing Fast Ruby
sferik
628
61k
Optimising Largest Contentful Paint
csswizardry
34
3.1k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
27
1.9k
We Have a Design System, Now What?
morganepeng
51
7.4k
Transcript
AbemaTV iOSࣾϥϯνษڧձ 2018/04/10 Yuji Hato 5ͰֶͿ ࠩߋ৽ͱRxDataSources
About me Yuji Hato CyberAgent, Inc. / AbemaTV, Inc. dekatotoro
@dekatotoro Contributed services
RxDataSources
RxDataSources RxDataSources ͬͯԿʁ
RxDataSources RxSwiftͷͨΊͷUITableViewͱ UICollectionViewͷDataSource
RxDataSources Կ͕خ͍͠ͷʁ
RxDataSources UITableView, UICollectionViewͷ delete, insert, move͕ ؆୯ʹ࣮Ͱ͖Δ !
RxDataSources delete, insert, moveͷͨΊͷߋ৽ͷࠩΛந ग़͢ΔΞϧΰϦζϜਖ਼֬ʹΖ͏ͱ͢Δͱ ͚ͬ͜͏͍͠…
RxDataSources ࠩநग़ΞϧΰϦζϜ
RxDataSources ɾWagner-Fischer ɾHeckel ɾMyers ɾWu …
RxDataSources ࠩநग़ΞϧΰϦζϜͷϥΠϒϥϦ
RxDataSources ɾosteslag/Changeset … Wagner-Fischer ɾjflinter/Dwifft … Myers ɾwokalski/Diff.swift … Myers
ɾonyarnold/Differ … Myers(Diff.swiftͷfork) ɾonmyway133/DeepDiff … HeckelΆ͍ ɾInstagram/IGListKit … Heckel ɾRxSwiftCommunity/RxDataSources … Heckelվ ɾkazuhiro4949/EditDistance … Wu
RxDataSources IGListKit … SectionΛදݱͨ͠ଟ࣍ݩ ྻͷࠩʹରԠ͍ͯ͠ͳ͍ RxDataSources … ϢχʔΫIDΛ࣋ͪɺ ྻʹॏෳ͕ͳ͍લఏͰSectionͷࠩߋ৽
RxDataSources ↓ ͜ΕΘ͔Γ͍͢ https://github.com/horita-yuya/ DifferenceAlgorithmComparison
RxDataSources ࣮
RxDataSources
RxDataSources SectionModelͷprotocol
public protocol SectionModelType { associatedtype Item public var items: [Self.Item]
{ get } public init(original: Self, items: [Self.Item]) } RxDataSources
public protocol IdentifiableType { associatedtype Identity : Hashable public var
identity: Self.Identity { get } } RxDataSources
public protocol AnimatableSectionModelType : SectionModelType, IdentifiableType where Self.Item : IdentifiableType,
Self.Item : Equatable { } RxDataSources
RxDataSources SectionModel
enum DownloadSeriesSectionModel: AnimatableSectionModelType { typealias Item = DownloadSeriesSectionItem case episodeList(season:
DownloadSeason?, items: [Item]) case other(items: [Item]) // Mark: - IdentifiableType var identity: String { … } // Mark: - SectionModelType var items: [DownloadSeriesSectionItem] { switch self { case .episodeList(_, let items): return items case .other(let items): return items } } init(original: DownloadSeriesSectionModel, items: [Item]) { switch original { case .episodeList(let season, _): self = .episodeList(season: season, items: items) case .other: self = .other(items: items) } } } RxDataSources
RxDataSources SectionItemModel
enum DownloadSeriesSectionItem: IdentifiableType, Equatable { case episode(downloadMedia: DownloadMedia) case seeOtherEpisode(series:
DownloadSeries) // Mark: - IdentifiableType var identity: String { … } // Mark: - Equatable static func == (lhs: DownloadSeriesSectionItem, rhs: DownloadSeriesSectionItem) -> Bool { … } } RxDataSources
RxDataSources AnimatableSectionModel
public struct AnimatableSectionModel<Section: IdentifiableType, ItemType: IdentifiableType & Equatable> { public
var model: Section public var items: [Item] public init(model: Section, items: [ItemType]) { self.model = model self.items = items } } extension AnimatableSectionModel : AnimatableSectionModelType { public typealias Item = ItemType public typealias Identity = Section.Identity public var identity: Section.Identity { return model.identity } public init(original: AnimatableSectionModel, items: [Item]) { self.model = original.model self.items = items } public var hashValue: Int { return self.model.identity.hashValue } } RxDataSources Α͘ݟͨΒ3Y%BUB4PVSDFT ʹ"OJNBUBCMF4FDUJPO.PEFM͕ ༻ҙ͞Ε͍ͯΔͷͰ͜ΕΛ͏ ͷ͕CFUUFS
RxDataSources RxTableViewSectionedAnimatedDataSource
open class RxTableViewSectionedAnimatedDataSource<S: AnimatableSectionModelType> : TableViewSectionedDataSource<S> , RxTableViewDataSourceType { …
public init( animationConfiguration: AnimationConfiguration = AnimationConfiguration(), decideViewTransition: @escaping DecideViewTransition = { _, _, _ in .animated }, configureCell: @escaping ConfigureCell, titleForHeaderInSection: @escaping TitleForHeaderInSection = { _, _ in nil }, titleForFooterInSection: @escaping TitleForFooterInSection = { _, _ in nil }, canEditRowAtIndexPath: @escaping CanEditRowAtIndexPath = { _, _ in false }, canMoveRowAtIndexPath: @escaping CanMoveRowAtIndexPath = { _, _ in false }, sectionIndexTitles: @escaping SectionIndexTitles = { _ in nil }, sectionForSectionIndexTitle: @escaping SectionForSectionIndexTitle = { _, _, index in index } ) { self.animationConfiguration = animationConfiguration self.decideViewTransition = decideViewTransition super.init( configureCell: configureCell, titleForHeaderInSection: titleForHeaderInSection, titleForFooterInSection: titleForFooterInSection, canEditRowAtIndexPath: canEditRowAtIndexPath, canMoveRowAtIndexPath: canMoveRowAtIndexPath, sectionIndexTitles: sectionIndexTitles, sectionForSectionIndexTitle: sectionForSectionIndexTitle ) } … } RxDataSources
final class DownloadSeriesDelegate: NSObject, UITableViewDelegate { … lazy var dataSource:
RxTableViewSectionedAnimatedDataSource<DownloadSeriesSectionModel> = .init( animationConfiguration: AnimationConfiguration(insertAnimation: .fade, reloadAnimation: .none, deleteAnimation: .fade), configureCell: { [weak self] dataSource, table, indexPath, item in guard let me = self else { return UITableViewCell() // Should never reach here. } switch item { case .episode(let downloadMedia): let cell = table.dequeueReusableCell(DownloadListMediaCell.self, forIndexPath: indexPath) cell.configure(downloadMedia: downloadMedia) … return cell case .seeOtherEpisode(let series): let cell = table.dequeueReusableCell(DownloadSeeOtherEpisodeCell.self, forIndexPath: indexPath) cell.rx.tapGesture .subscribe(onNext: { [weak self] in … }) .disposed(by: cell.reusableDisposeBag) … return cell } }) … RxDataSources
final class DownloadSeriesViewStream { … let sectionModels: Property<[DownloadSeriesSectionModel]> private let
_sectionModels = Variable<[DownloadSeriesSectionModel]>([]) … } RxDataSources
final class DownloadSeriesViewController: UIViewController { … viewStream.sectionModels.asObservable() // IMPORTANT: //
crashճආɺཁௐࠪ. .throttle(1.0, latest: true, scheduler: ConcurrentMainScheduler.instance) .bind(to: tableView.rx.items(dataSource: delegate.dataSource)) .disposed(by: rx.disposeBag) … RxDataSources
RxDataSources UITableViewDelegateʁ
// MARK: - UITableViewDelegate func tableView(_ tableView: UITableView, heightForRowAt indexPath:
IndexPath) -> CGFloat { … } func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? { … } func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? { … } func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat { … } … RxDataSources
Conclusion
Conclusion • ࠩநग़ΞϧΰϦζϜͷϥΠϒϥϦݕ౼͠Α͏ • DiffΞϧΰϦζϜࣗલͰ࡞Ζ͏ͱ͢Δͱ͚ͬ͜͏େม • RxSwift͍ͬͯΔͳΒRxDataSourcesͰྑͦ͞͏
Thank you