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
Data Essentials in SwiftUI
Search
ry-itto
July 09, 2020
Programming
1
490
Data Essentials in SwiftUI
集まれSwift好き!Swift愛好会スピンオフ WWDC20セッション要約会 @オンライン
ry-itto
July 09, 2020
Tweet
Share
More Decks by ry-itto
See All by ry-itto
決定版!?OSSアプリプロジェクトでのBeta版アプリ配布の方法「Xcode Cloud + TestFlight」
ryitto
0
360
CA.swift#14
ryitto
3
5.5k
swift-argument-parserで 簡単 CLI ツール作り
ryitto
1
150
Composable Architecture
ryitto
0
780
CollectionViewの 新しいレイアウトの作り方
ryitto
0
52
Swift5.1 SwiftUI
ryitto
0
130
Other Decks in Programming
See All in Programming
1から理解するWeb Push
dora1998
7
2k
そのAPI、誰のため? Androidライブラリ設計における利用者目線の実践テクニック
mkeeda
2
4.6k
Performance for Conversion! 分散トレーシングでボトルネックを 特定せよ
inetand
0
5.3k
Azure SRE Agentで運用は楽になるのか?
kkamegawa
0
2.6k
知っているようで知らない"rails new"の世界 / The World of "rails new" You Think You Know but Don't
luccafort
PRO
1
190
AI Agents: How Do They Work and How to Build Them @ Shift 2025
slobodan
0
110
AIでLINEスタンプを作ってみた
eycjur
1
230
Platformに“ちょうどいい”責務ってどこ? 関心の熱さにあわせて考える、責務分担のプラクティス
estie
1
230
go test -json そして testing.T.Attr / Kyoto.go #63
utgwkk
3
320
GitHubとGitLabとAWS CodePipelineでCI/CDを組み比べてみた
satoshi256kbyte
4
250
FindyにおけるTakumi活用と脆弱性管理のこれから
rvirus0817
0
550
Navigating Dependency Injection with Metro
zacsweers
3
5.4k
Featured
See All Featured
Designing Experiences People Love
moore
142
24k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Six Lessons from altMBA
skipperchong
28
4k
Why You Should Never Use an ORM
jnunemaker
PRO
59
9.5k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.1k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
The Invisible Side of Design
smashingmag
301
51k
Making the Leap to Tech Lead
cromwellryan
135
9.5k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
[RailsConf 2023] Rails as a piece of cake
palkan
57
5.8k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
36
2.5k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.6k
Transcript
3ZPZB*UP !SZJUUP %BUB&TTFOUJBMTJO4XJGU6* ू·Ε4XJGU͖ʂ4XJGUѪձεϐϯΦϑ88%$ηογϣϯཁձ!ΦϯϥΠϯ
ࣗݾհ ҏ౻྇ !SZJUUP ձେֶֶ෦ੜ Χϐόϥ͕͖
ηογϣϯͷ༰ w 4XJGU6*Ͱͷσʔλϑϩʔ w ΞϓϦͷσʔλϞσϧઃܭ w ࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ
ηογϣϯͷ༰ w 4XJGU6*Ͱͷσʔλϑϩʔ w ΞϓϦͷσʔλϞσϧઃܭ w ࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ
4XJGU6*Ͱͷσʔλϑϩʔ ϏϡʔΛ࡞Δ࣌ʹߟ͍͑ͨ̏ͭͷ࣭ w ࡞͢ΔϏϡʔͰඞཁͳσʔλԿ͔ʁ w ࡞͢ΔϏϡʔͰσʔλΛͲͷΑ͏ʹૢ࡞͢Δ͔ʁ w σʔλͲ͔͜ΒདྷΔʢ͞ΕΔʣͷ͔ʁ
4XJGU6*Ͱͷσʔλϑϩʔ ϏϡʔΛ࡞Δ࣌ʹߟ͍͑ͨ̏ͭͷ࣭ w ࡞͢ΔϏϡʔͰඞཁͳσʔλԿ͔ʁ CPPLͱ͍͏#PPLܕͷ QSPHSFTTͱ͍͏%PVCMFܕͷ ͦΕͧΕ͕͋ΕϏϡʔΛදࣔͰ͖ͦ͏ɻ w ࡞͢ΔϏϡʔͰσʔλΛͲͷΑ͏ʹૢ࡞͢Δ ͔ʁ
ಛʹͳͦ͞͏ w σʔλͲ͔͜ΒདྷΔʢ͞ΕΔʣͷ͔ʁ ͜ͷϏϡʔΛ͏ϏϡʔͰ͞ΕΔ͜ͱʹͳΓͦ͏ɻ struct BookCard : View { let book: Book let progress: Double var body: some View { HStack { Cover(book.coverName) VStack(alignment: .leading) { TitleText(book.title) AuthorText(book.author) } Spacer() RingProgressView(value: progress) } } }
4XJGU6*Ͱͷσʔλϑϩʔ ϏϡʔΛ࡞Δ࣌ʹߟ͍͑ͨ̏ͭͷ࣭ w ࡞͢ΔϏϡʔͰඞཁͳσʔλԿ͔ʁ CPPLͱ͍͏#PPLܕͷ QSPHSFTTͱ͍͏%PVCMFܕͷ ͦΕͧΕ͕͋ΕϏϡʔΛදࣔͰ͖ͦ͏ɻ w ࡞͢ΔϏϡʔͰσʔλΛͲͷΑ͏ʹૢ࡞͢ Δ͔ʁ
ಛʹͳͦ͞͏ w σʔλͲ͔͜ΒདྷΔʢ͞ΕΔʣͷ͔ʁ ͜ͷϏϡʔΛ͏ϏϡʔͰ͞ΕΔ͜ͱʹͳΓͦ͏ɻ struct BookCard : View { let book: Book let progress: Double var body: some View { HStack { Cover(book.coverName) VStack(alignment: .leading) { TitleText(book.title) AuthorText(book.author) } Spacer() RingProgressView(value: progress) } } } l4PVSDFPG5SVUIzͱ͍͏ݴ༿ͰηογϣϯͰѻΘΕΔ
4XJGU6*Ͱͷσʔλϑϩʔ ϏϡʔͰͷσʔλอ࣋ɺͦΕͧΕͲΜͳ࣌ʹ͏ʁ ϓϩύςΟϏϡʔʹΑͬͯมߋ͞Εͳ͍σʔλ !4UBUFϏϡʔʹΑͬͯอ࣋͞ΕΔҰ࣌తͳσʔλΛѻ͏ !#JOEJOHଞͷϏϡʔʹΑͬͯอ࣋͞Ε͍ͯΔσʔλΛมߋ͍ͨ͠߹
ηογϣϯͷ༰ w 4XJGU6*Ͱͷσʔλϑϩʔ w ΞϓϦͷσʔλϞσϧઃܭ w ࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ
ΞϓϦͷσʔλϞσϧઃܭ σʔλϞσϧఆٛ w 0CTFSWBCMF0CKFDUΛ͏ w !1VCMJTIFEΛ͏ w ̎ͭͷ࣭ ࡞͢ΔϏϡʔͰσʔλΛͲͷΑ͏ʹૢ࡞͢ Δ͔ʁ
ʹ͑Δͷ༰қ class CurrentlyReading: ObservableObject { let book: Book @Published var progress = ReadingProgress() @Published var isFinished = false var currentProgress: Double { isFinished ? 1.0 : progress.progress } }
ΞϓϦͷσʔλϞσϧઃܭ ϏϡʔͰ࡞ͬͨϞσϧΛ͏ w ଞͷ̎ͭͷ࣭ʹ͍ͭͯʁ w ࡞͢ΔϏϡʔͰඞཁͳσʔλԿ͔ʁ w ࡞͢ΔϏϡʔͰσʔλΛͲͷΑ͏ʹૢ࡞͢Δ͔ʁ w σʔλͲ͔͜ΒདྷΔʢ͞ΕΔʣͷ͔ʁ
ΞϓϦͷσʔλϞσϧઃܭ ϏϡʔͰ࡞ͬͨϞσϧΛ͏ w ѻ͏ͨΊͷ1SPQFSUZ8SBQQFS͕̏ͭ w !0CTFSWFE0CKFDU w !&OWJSPONFOU0CKFDU w !4UBUF0CKFDU
/FX
ΞϓϦͷσʔλϞσϧઃܭ ϏϡʔͰ࡞ͬͨϞσϧΛ͏ !0CTFSWFE0CKFDU σʔλͷґଘؔΛ࡞Δ !&OWJSPONFOU0CKFDU Ϗϡʔ֊ؒͷ0CTFSWBCMF0CKFDUͷѻ͍Λศརʹ͢Δ !4UBUF0CKFDU /FX 0CTFSWBCMF0CKFDUΛϏϡʔͷϥΠϑαΠΫϧʹ݁ͼ͚ͭΔ
ηογϣϯͷ༰ w 4XJGU6*Ͱͷσʔλϑϩʔ w ΞϓϦͷσʔλϞσϧઃܭ w ࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ
࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ w ࢠͷϏϡʔͰϞσϧΛϓϩύςΟͰ ͍࣋ͬͯͯɺͦ͜ͰॳظԽ͍ͯ͠Δ ߹ w 3FBEJOH-JTU7JFXFS͕ࡍϨϯμϦϯά͞ ΕΔͨͼʹϞσϧͷΠϯελϯε͕ੜ ͞Εͯ͠·͏
struct ReadingListViewer: View { var body: some View { NavigationView { ReadingList() Placeholder() } } } struct ReadingList: View { @ObservedObject var store = ReadingListStore() var body: some View { // ... } }
࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ ղܾࡦ w !4UBUF0CKFDUΛΘΓʹ͏͜ͱ Ͱղܾ͕Ͱ͖ΔʢΒ͍͠ʣ w !4UBUF0CKFDUΛ༻͢Δͱ4XJGU6*͕ దͳλΠϛϯάͰΠϯελϯεԽΛ͠ ͯ͘ΕΔͱͷ͜ͱ struct
ReadingListViewer: View { var body: some View { NavigationView { ReadingList() Placeholder() } } } struct ReadingList: View { @StateObject var store = ReadingListStore() var body: some View { // ... } }
࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ ୭͕σʔλΛ࣋ͭͷ͔ w ڞ௨ͷઌʹ࣋ͭ w !4UBUF0CKFDUΛͬͯͦͷϏϡʔ͕ࣗ࣋ͭ w ΞϓϦͷάϩʔόϧͳσʔλͱͯ࣋ͭ͠ w "QQΛܧঝͨ͠Ϗϡʔʹ!4UBUFͳͲΛར༻ͯ͠એݴͯ͋͛͠Δ
࣮ࡍʹΞϓϦʹऔΓೖΕΔࡍͷςΫχοΫ σʔλͷӬଓԽ w 4DFOF4UPSBHF w 4XJGU6*͕ཧ͍ͯ͠ΔϏϡʔͰ͔͑͠ͳ͍ w ߲ͷબঢ়ଶͳͲΛอଘ w "QQ4UPSBHF
w 6TFS%FGBVMUΛ༻ͨ͠άϩʔόϧετϨʔδ w ઃఆͳͲͷখ͞ͳσʔλΛอଘ
͓·͚ ৽͘͠Ճ͞ΕͨΠϕϯτιʔε w PO$IBOHF w PO0QFO63- w PO$POUJOVF6TFS"DUJWJUZ