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
RxSwiftと愉快な仲間たち / RxSwift with Units
Search
Mihyaeru
May 20, 2016
Technology
4
2.8k
RxSwiftと愉快な仲間たち / RxSwift with Units
Gotanda.mobile #1 on 2016/05/20
Mihyaeru
May 20, 2016
Tweet
Share
More Decks by Mihyaeru
See All by Mihyaeru
会計 freee バックエンドの今後 / freee backend api
mihyaeru21
8
25k
Railsで実装されている機能のマイクロサービスへの切り離し / split to microservices from rails
mihyaeru21
1
830
WebエンジニアのためのMySQLデータ構造基礎(再) / mysql data structure for web developer 2
mihyaeru21
0
300
WebエンジニアのためのMySQLデータ構造基礎 / mysql data structure for web developer
mihyaeru21
1
690
WebエンジニアのためのMySQL入門 / learning mysql for web developer
mihyaeru21
7
2.6k
入門ReactiveX / about ReactiveX
mihyaeru21
3
450
RxSwiftでTwitterの ライブラリを作ってる話 / RxTwift
mihyaeru21
4
740
CrystalでTwitter botを作ってみた / Create a Twitter bot in Crystal
mihyaeru21
0
1.3k
Gotanda.pm #1
mihyaeru21
1
180
Other Decks in Technology
See All in Technology
オブザーバビリティと育てた ID管理・認証認可基盤の歩み / The Journey of an ID Management, Authentication, and Authorization Platform Nurtured with Observability
kaminashi
1
230
AI時代、“平均値”ではいられない
uhyo
8
2.4k
コンパウンド組織のCRE #cre_meetup
layerx
PRO
1
250
From Natural Language to K8s Operations: The MCP Architecture and Practice of kubectl-ai
appleboy
0
170
Bill One 開発エンジニア 紹介資料
sansan33
PRO
4
14k
AI AgentをLangflowでサクッと作って、1日働かせてみた!
yano13
1
150
What's new in OpenShift 4.20
redhatlivestreaming
0
140
ローカルLLMとLINE Botの組み合わせ その2(EVO-X2でgpt-oss-120bを利用) / LINE DC Generative AI Meetup #7
you
PRO
1
150
会社を支える Pythonという言語戦略 ~なぜPythonを主要言語にしているのか?~
curekoshimizu
3
630
生成AIを安心して活用するために──「情報セキュリティガイドライン」策定とポイント
gree_tech
PRO
1
350
[2025年10月版] Databricks Data + AI Boot Camp
databricksjapan
1
250
アウトプットから始めるOSSコントリビューション 〜eslint-plugin-vueの場合〜 #vuefes
bengo4com
3
1.6k
Featured
See All Featured
Automating Front-end Workflow
addyosmani
1371
200k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
4k
The Power of CSS Pseudo Elements
geoffreycrofte
80
6k
Gamification - CAS2011
davidbonilla
81
5.5k
Visualization
eitanlees
149
16k
Navigating Team Friction
lara
190
15k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.5k
4 Signs Your Business is Dying
shpigford
185
22k
Designing for Performance
lara
610
69k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.2k
Unsuck your backbone
ammeep
671
58k
Faster Mobile Websites
deanohume
310
31k
Transcript
RxSwiftͱ༇շͳؒͨͪ Gotanda.mobile #1 in Mobile Factory on 2016/05/20 ϛώϟΤϧ@mihyaeru21
͓·͑୭Α • ϛώϟΤϧ @mihyaeru21 • ࠷ۙͷݴޠɿSwift/Kotlin/Perl • ·ͩ·ͩϋϯλʔ • ϞφυΛཧղ͍ͨ͠
RxSwit
Unit
Unit • Driver • Variable • ControlEvent/ControlProperty
Unit • RxCocoa͕ఏڙ͢Δศར͘Μ • ཧͱ͔ͷ୯Ґͱͯ͠ͷUnitʹ͔͚͍ͯΔΒ͍͠ ※RxCocoaʹؚ·ΕΔͱެࣜυΩϡϝϯτʹ͋Δ͚ͲVariableRxSwiftʹؚ·ΕΔ
Driver
Driver • Τϥʔ͕ྲྀΕͳ͍ • observe on ϝΠϯεϨου • share͞ΕΔ •
(ਖ਼֬ʹ shareReplayLatestWhileConnected )
Driver • ϞσϧͱUIͷؒʹೖͬͨΓ • UIͱUIΛܨ͍ͩΓ • ϋʔυΣΞͷυϥΠόιϑτΣΞతͳͱ͜Ζ͔Β ໊͚ΒΕͨ
Driver fetchUser() .map { $0.name } .observeOn(MainScheduler.instance) .bindTo(label.rx_text)
Driver fetchUser() .map { $0.name } .observeOn(MainScheduler.instance) .bindTo(label.rx_text) όοΫάϥϯυͰσʔλΛऔͬͯ͘Δ UIͷߋ৽ϝΠϯεϨουඞਢ
ϥϕϧͷςΩετʹόΠϯυ͢Δ
Driver fetchUser() .map { $0.name } .asDriver(onErrorJustReturn: "") .drive(label.rx_text)
Driver fetchUser() .map { $0.name } .asDriver(onErrorJustReturn: "") .drive(label.rx_text) Driverʹม
ϥϕϧͷςΩετʹόΠϯυ͢Δ
Driver let userName = fetchUser() .map { $0.name } .observeOn(MainScheduler.instance)
userName.bindTo(label.rx_text) userName.bindTo(otherLabel.rx_text)
Driver let userName = fetchUser() .map { $0.name } .observeOn(MainScheduler.instance)
.share() userName.bindTo(label.rx_text) userName.bindTo(otherLabel.rx_text) share()͠ͳ͍ͱ2ճൃՐ͢Δ
Driver let userName = fetchUser() .map { $0.name } .asDriver(onErrorJustReturn:
"") userName.drive(label.rx_text) userName.drive(otherLabel.rx_text)
Driver let userName = fetchUser() .map { $0.name } .asDriver(onErrorJustReturn:
"") userName.drive(label.rx_text) userName.drive(otherLabel.rx_text) share()తͳ͜ͱΛ͍ͯ͠Δ͔ΒൃՐ1ճͷΈ
Driver • ʮͦΕɺObservableͰͰ͖ͯΔ͡ΌΜʯ • ͍
Driver • UIͱܨ͙ҙਤΛ໌֬ʹ͢Δ • ҆શΛߴΊΔ • DriverʹมޙobserveεϨουͷมߋͰ͖ͳ͍ • share()ͯ͘͠ΕΔ
Variable
Variable • Τϥʔ͕ྲྀΕͳ͍ • share͞ΕΔ
Variable • BehaviorSubjectͷWrapper • valueϓϩύςΟΛ௨ͯ͠࠷৽ͷʹΞΫηεͰ͖Δ • valueϓϩύςΟͷೖon(.Next)ͱͯ͠ྲྀΕΔ • ObservableʹͳΔ͚ͲObserverʹͳΒͳ͍ •
Λྲྀͨ͢ΊʹvalueΛඞͣܦ༝͢Δ
Variable let variable = Variable(0) variable .asDriver() .map { "value:
\($0)" } .drive(label.rx_text) variable.value = 99 print("variable.value = \(variable.value)")
Variable let variable = Variable(0) variable .asDriver() .map { "value:
\($0)" } .drive(label.rx_text) variable.value = 99 print("variable.value = \(variable.value)") label.text͕”value: 99”ʹͳΔ VariableΤϥʔΛྲྀ͞ͳ͍͔Β Ҿແ͠൛ͷasDriver()͕͋Δ ಉظతʹΛऔಘͰ͖Δ
ControlEvent ControlProperty
ControlEvent/ControlProperty • Τϥʔ͕ྲྀΕͳ͍ • subscribe on ϝΠϯεϨου • observe on
ϝΠϯεϨου • share͞ΕΔ
ControlEvent/ControlProperty • UIύʔπͷΠϕϯτΛRxͱͭͳ͗ࠐΈ͘͢ • ControlEvent • Observable • ControlProperty •
Observable / Observer • Observer͋Δ
ControlEvent/ControlProperty textField.rx_text .asDriver() .drive(label.rx_text) ControlProperty Observer ControlPropertyΤϥʔΛྲྀ͞ͳ͍͔Β Ҿແ͠൛ͷasDriver()͕͋Δ
ControlEvent/ControlProperty textField.rx_text .bindTo(label.rx_text) ControlPropertyͷΠϕϯτϝΠϯεϨουͰྲྀΕΔ
ControlEvent/ControlProperty button.rx_tap .asDriver() .map { "tapped!" } .drive(textField.rx_text) ControlEventΤϥʔΛྲྀ͞ͳ͍͔Β Ҿແ͠൛ͷasDriver()͕͋Δ
ControlEvent ControlProperty
ControlEvent/ControlProperty • Cocoaͷ͍ΖΜͳͭʹ rx_* ͕ੜ͍͑ͯͯΖ͍Ζศར • https://github.com/ReactiveX/RxSwift/blob/master/ Documentation/API.md
ಥͳ·ͱΊ • ศརػೳͨͪ • Driver • Variable • ControlEvent/ControlProperty •
ͳͯ͘ࢮͳͳ͍͚Ͳ͋Δͱຯʹศར • ຯʹͬͯ͜