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
制約のなかでContainerViewControllerを つくる方法
Search
Mitsuyoshi Yamazaki
September 18, 2018
Technology
5
840
制約のなかでContainerViewControllerを つくる方法
ChildViewControllerが依存しあっているような制約のもとでも、汎用のContainerViewControllerを作る方法を詳解します
Mitsuyoshi Yamazaki
September 18, 2018
Tweet
Share
More Decks by Mitsuyoshi Yamazaki
See All by Mitsuyoshi Yamazaki
人工生命
mitsuyoshiyamazaki
0
1.5k
人工生命の世界
mitsuyoshiyamazaki
0
1.7k
Other Decks in Technology
See All in Technology
Automating Web Accessibility Testing with AI Agents
maminami373
0
1.1k
Skrub: machine-learning with dataframes
gaelvaroquaux
0
120
MCPで変わる Amebaデザインシステム「Spindle」の開発
spindle
PRO
3
2.9k
allow_retry と Arel.sql / allow_retry and Arel.sql
euglena1215
1
160
Snowflakeの生成AI機能を活用したデータ分析アプリの作成 〜Cortex AnalystとCortex Searchの活用とStreamlitアプリでの利用〜
nayuts
0
350
Kubernetes における cgroup driver のしくみ: runwasi の bugfix より
z63d
2
230
おやつは300円まで!の最適化を模索してみた
techtekt
PRO
0
280
Language Update: Java
skrb
2
280
AI開発ツールCreateがAnythingになったよ
tendasato
0
110
【Grafana Meetup Japan #6】Grafanaをリバプロ配下で動かすときにやること ~ Grafana Liveってなんだ ~
yoshitake945
0
360
COVESA VSSによる車両データモデルの標準化とAWS IoT FleetWiseの活用
osawa
0
160
2025年夏 コーディングエージェントを統べる者
nwiizo
0
110
Featured
See All Featured
Product Roadmaps are Hard
iamctodd
PRO
54
11k
How STYLIGHT went responsive
nonsquared
100
5.8k
Documentation Writing (for coders)
carmenintech
74
5k
Rebuilding a faster, lazier Slack
samanthasiow
83
9.2k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.5k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.1k
Build your cross-platform service in a week with App Engine
jlugia
231
18k
GraphQLとの向き合い方2022年版
quramy
49
14k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
Faster Mobile Websites
deanohume
309
31k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
RailsConf 2023
tenderlove
30
1.2k
Transcript
੍ͷͳ͔Ͱ ContainerViewControllerΛ ͭ͘Δํ๏ @vespid v2.2.1
About me • Twitter: @vespid • GitHub: mitsuyoshi-yamazaki • SpeeeͰSwift։ൃ৽نࣄۀͷ
ϢʔβʔΠϯλϏϡʔͳͲ
ࡢॴଐ͍ͯͨ͠ࣄۀ෦ • iOS։ൃऀͱͯ͠ ඒ༰ΞϓϦΛ୲ • TwitterͷϓϩϑΟʔϧ ը໘ͷ࠶ݱ
͍͍ײ͡ʹOSSԽͰ͖ͨ HJUIVCDPNTQFFF 4DSPMMBCMF5BC$POUSPMMFS
Έͳ͞Μ
ᕒͷUI͕࠶ར༻Ͱ͖ͳ͍
ͱ͍͏͜ͱͳ͍Ͱ͠ΐ͏͔
ContainerViewControllerΛ ͬͨ͜ͱͷ͋Δํ ଟ͍ͱࢥ͍·͕͢
൚༻Խ͕͍͜͠ͱ
੍ͷͳ͔Ͱ ContainerViewControllerΛ ͭ͘Δํ๏ʹ͍ͭͯઆ໌͠·͢
• εΫϩʔϧʹΑͬͯ ϔομʔ͕ॖΉ • ChildVC ϔομʔͱλϒͷத ྫɿTwitter UI
Twitter UIͷ;ͨͭͷཁૉ 1.ScrollViewΛΈ߹ΘͤͨView • εΫϩʔϧͱಉظͨ͠Ξχϝʔγϣϯ 2.൚༻ContainerViewController • ChildViewControllerಉ࢜ͷಠཱΛอͭ Twitter UIΛςʔϚʹબΜͩཧ༝ɿ
Twitter UIͷ;ͨͭͷཁૉ 1.ScrollViewΛΈ߹ΘͤͨView • εΫϩʔϧͱಉظͨ͠Ξχϝʔγϣϯ 2.൚༻ContainerViewController • ChildViewControllerಉ࢜ͷಠཱΛอͭ Twitter UIΛςʔϚʹબΜͩཧ༝ɿ
੍ͷͱ൚༻Խ͢Δͷ͕͍͠
Ͳ͏ͭ͘Δ͔ʁ
ContainerViewControllerͷઃܭ • ΠϯλʔϑΣʔεΛఆٛ͢Δ • ChildViewControllerؒͷಠཱੑΛ୲อ͢Δ • ্࣮ͷ੍Λղܾ͢ΔɿࠓճScrollViewؔ࿈
ContainerViewControllerͷઃܭ • ΠϯλʔϑΣʔεΛఆٛ͢Δ • ChildViewControllerؒͷಠཱੑΛ୲อ͢Δ • ্࣮ͷ੍Λղܾ͢ΔɿࠓճScrollViewؔ࿈
ΠϯλʔϑΣʔεΛఆٛ͢Δ • ཁ • ͍͍͢ΠϯλʔϑΣʔεΛ༻ҙ͍ͨ͠ • UIKit४ڌ
ΠϯλʔϑΣʔεΛఆٛ͢Δ ϔομʔ λϒ εΫϩʔϧίϯςϯπ
ΠϯλʔϑΣʔεΛఆٛ͢Δ class ScrollableViewController: UIViewController { var scrollView: UIScrollView } class
ContainerViewController: UIViewController { var headerViewController: UIViewController // ϔομʔ var viewControllers: [ScrollableViewController] // εΫϩʔϧίϯςϯπ } εΫϩʔϧίϯςϯπScrollViewΛ͍ͬͯΔඞཁ͕͋Δ
ContainerViewControllerͷઃܭ • ΠϯλʔϑΣʔεΛఆٛ͢Δ • ChildViewControllerؒͷಠཱੑΛ୲อ͢Δ • ্࣮ͷ੍Λղܾ͢ΔɿࠓճScrollViewؔ࿈
ChildViewControllerͷ ಠཱੑΛ୲อ͢Δ • ཁ • ҙͷChildViewControllerΛѻ͍͍ͨ
class ScrollableViewController: UIViewController { var scrollView: UIScrollView } class ContainerViewController:
UIViewController { var headerViewController: UIViewController // ϔομʔ var viewControllers: [ScrollableViewController] // εΫϩʔϧίϯςϯπ } ChildViewControllerͷ ಠཱੑΛ୲อ͢Δ ѻ͑ΔChildViewControllerʹ੍ݶ͕͔͔͍ͬͯΔ
protocol Scrollable { var scrollView: UIScrollView! { get } }
class ContainerViewController: UIViewController { var headerViewController: UIViewController // ϔομʔ var viewControllers: [UIViewController & Scrollable] // εΫϩʔϧίϯςϯπ } ChildViewControllerͷ ಠཱੑΛ୲อ͢Δ ඞਢͷ੍protocolʹΓग़͢
ContainerViewControllerͷઃܭ • ΠϯλʔϑΣʔεΛఆٛ͢Δ • ChildViewControllerؒͷಠཱੑΛ୲อ͢Δ • ্࣮ͷ੍Λղܾ͢ΔɿࠓճScrollViewؔ࿈
• λϒͷίϯςϯπΛ εΫϩʔϧͰ͖Δ • ্·ͰεΫϩʔϧ͢Δͱ ࿈ଓతʹϔομʔ͕ॖΉ ScrollViewཁ݅
࣮Ҋ 1. ScrollViewΛೖΕࢠʹ͢Δ 2. εΫϩʔϧͰScrollView.frameΛߋ৽͢Δ 3. ScrollView.contentInsetΛར༻͢Δ
࣮Ҋ 1. ScrollViewΛೖΕࢠʹ͢Δ 2. εΫϩʔϧͰScrollView.frameΛߋ৽͢Δ 3. ScrollView.contentInsetΛར༻͢Δ
ScrollView.contentInsetΛ ར༻͢Δ
None
࣮
ScrollView.contentInsetΛར༻͢Δ ࣮ tabContentViewController.scrollView.contentInset.top = headerViewController.maximumHeight tabContentViewController.scrollView.observe(\.contentOffset) { (_, change) in
guard let offset = change.newValue else { return } self.headerHeightConstraint.constant = -(self.tabViewHeight + offset.y) } ContentOffsetͷมԽΛऔಘ͠ɺϔομʔߴ͞Λߋ৽
contentOffsetΛऔಘ͢ΔͳΒ scrollViewDidScroll Λ͑Α͍ͷͰ
ScrollViewDelegateΛ ར༻͠ͳ͍ཧ༝ • σϦήʔτʹઃఆͰ͖ΔΠϯελϯε ͻͱͭͳͷͰɺίϯςφଆͰར༻͢Δͱ ChildViewControllerͷσϦήʔτϝιου͕ ݺΕͳ͘ͳΔͨΊ
·ͱΊ • ΠϯλʔϑΣʔεΛઌʹߟ͑Δ • ChildViewControllerؒͷಠཱΛอͭʹ protocolΛ͏ • ScrollViewಛੑΛཧղͯ͠͏ • ChildViewControllerͷdelegateΛԣऔΓ͠ͳ͍
!WFTQJE HJUIVCDPNTQFFF4DSPMMBCMF5BC$POUSPMMFS ੍ͷͳ͔Ͱ ContainerViewControllerΛ ͭ͘Δํ๏
None
None
ิࢿྉ
ScrollView࣮ Ҋ
1. ScrollViewΛೖΕࢠʹ͢Δ
1. ScrollViewΛೖΕࢠʹ͢Δ ϔομʔ λϒ εΫϩʔϧίϯςϯπ
1. ScrollViewΛೖΕࢠʹ͢Δ • ࿈ଓͯ͠εΫϩʔϧ Ͱ͖ͳ͍
1. ScrollViewΛೖΕࢠʹ͢Δ આ໌ɿ • ͻͱͭͷScrollView͕εϫΠϓδΣενϟʔΛ ड͚औΔͱɺͦͷεΫϩʔϧ͕ऴΘΔ·Ͱ ଞͷScrollViewʹδΣενϟʔ͕·ΘΒͳ͍ͨΊ
2. εΫϩʔϧͰScrollView.frameΛ ߋ৽͢Δ
2. εΫϩʔϧͰScrollView.frameΛߋ৽͢Δ ϔομʔ λϒ εΫϩʔϧίϯςϯπ
2. εΫϩʔϧͰScrollView.frameΛߋ৽͢Δ • ʮϔομʔ͕ॖΉʯͷ͕ཁ݅ • ͦΕʮϔομʔҎ֎͕͕Δʯͱಉ͡ • εΫϩʔϧʹΑͬͯScrollView.frame.heightΛ มߋ͢Ε࣮ݱͰ͖ΔͷͰͳ͍͔ʁ
2. εΫϩʔϧͰScrollView.frameΛߋ৽͢Δ આ໌ɿ • εΫϩʔϧதʹScrollView.frame͕ߋ৽͞ΕΔͱ ʮϢʔβʔ͕৮͍ͬͯΔ(contentOffset)ʯ͕ มΘͬͯ͠·͏ • frameߋ৽ˠcontentOffsetߋ৽ˠframeߋ৽… ͷϧʔϓͰεΫϩʔϧ͕͓͔͘͠ͳΔ