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
入門 SwiftUI Alignment Guide / iOSDC2022
Search
monoqlo
September 11, 2022
Technology
11
5.7k
入門 SwiftUI Alignment Guide / iOSDC2022
iOSDC Japan 2022 2022/09/11
monoqlo
September 11, 2022
Tweet
Share
More Decks by monoqlo
See All by monoqlo
Hey Siri!マルチプラットフォームでのSiriショートカットの地雷を教えて / iOSDC2021
monoqlo
0
750
あなたのアプリ、✨リブランディング✨できますか? / iosdc2020
monoqlo
9
1.6k
実践 CallKit/PushKit ときどき🐛退治 / iOSDC 2019
monoqlo
4
3.8k
「QRコード読み取り?楽勝ですよ😙」=>「AVFoundationを信じたおれがバカだった😇」 / iOSDC 2018
monoqlo
10
28k
WWDC2016のススメ
monoqlo
0
110
Other Decks in Technology
See All in Technology
SOC2取得の全体像
shonansurvivors
1
370
LLMアプリケーション開発におけるセキュリティリスクと対策 / LLM Application Security
flatt_security
7
1.8k
AIが書いたコードをAIが検証する!自律的なモバイルアプリ開発の実現
henteko
1
340
リーダーになったら未来を語れるようになろう/Speak the Future
sanogemaru
0
280
コンテキストエンジニアリングとは? 考え方と応用方法
findy_eventslides
4
890
KAGのLT会 #8 - 東京リージョンでGAしたAmazon Q in QuickSightを使って、報告用の資料を作ってみた
0air
0
200
Pure Goで体験するWasmの未来
askua
1
180
How to achieve interoperable digital identity across Asian countries
fujie
0
110
AI駆動開発を推進するためにサービス開発チームで 取り組んでいること
noayaoshiro
0
160
10年の共創が示す、これからの開発者と企業の関係 ~ Crossroad
soracom
PRO
1
170
M5製品で作るポン置きセルラー対応カメラ
sayacom
0
140
ZOZOのAI活用実践〜社内基盤からサービス応用まで〜
zozotech
PRO
0
170
Featured
See All Featured
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
890
How GitHub (no longer) Works
holman
315
140k
RailsConf 2023
tenderlove
30
1.2k
We Have a Design System, Now What?
morganepeng
53
7.8k
How to Ace a Technical Interview
jacobian
280
24k
Art, The Web, and Tiny UX
lynnandtonic
303
21k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
19
1.2k
Bash Introduction
62gerente
615
210k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
52
5.6k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
162
15k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.4k
Transcript
@monoqloʢͷ͘Ζʣ ೖSwiftUI Alignment Guide iOSDC Japan 2022
͡Ίʹ
• ʮೖʯͱ͋ΔΑ͏ʹϝΠϯλʔήοτSwiftUIॳ৺ऀͰ͢ • ۩ମతʹŋŋŋ • alignmentGuide(_:computeValue:) ͬͨ͜ͱͳ͍ • Custom Alignment
Guideͬͨ͜ͱͳ͍ • ͬͨ͜ͱ͋Δ͚ͲΑ͘Θ͔Βͳ͔ͬͨ ॳ৺ऀ͚ͷτʔΫͰ͢
• 2,3લ͔ͬ͢Β͔ΜͩͬͨެࣜυΩϡϝϯτ… • ͍ͭͷ·ʹ͔େॆ࣮ • ࠷ֶۙͼ࢝ΊͨਓٯʹΑ͍ͬͯ͘ΔՄೳੑ😇 • ਖ਼͜ͷτʔΫͷඞཁੑΛٙ͏΄ͲΊͪΌͪ͘Όྑ͍ࢿྉ • ͔͍ͭ·ΜͰҾ༻ͭͭ͠ղઆ
• εϥΠυͷ࠷ޙʹࢀߟจݙͱͯ͠URLهࡌ ࠷ۙͷެࣜυΩϡϝϯτେॆ࣮
ୈষ Alignment Guideͱ
ྫ
HStack { VStack { Rectangle() .fill(.blue) .frame(width: 100, height: 400)
Text("Long Blue Bar") .font(.title) } VStack { Rectangle() .fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar") .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } }
None
ղྫ
HStack { VStack { Rectangle() .fill(.blue) .frame(width: 100, height: 400)
Text("Long Blue Bar") .font(.title) } VStack { Rectangle() .fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar") .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } }
HStack(alignment: .bottom) { VStack { Rectangle() .fill(.blue) .frame(width: 100, height:
400) Text("Long Blue Bar") .font(.title) } VStack { Rectangle() .fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar") .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } }
ղઆ
VStack { Text("Hello,") Text("😺🐶🐢🐰🐳") Text("Animals!") }
VStack { Text("Hello,") Text("😺🐶🐢🐰🐳") Text("Animals!") }
VStack { Color.white.frame(width: 1) Text("Hello,") Text("😺🐶🐢🐰🐳") Text(“Animals!") Color.white.frame(width: 1) }
VStack(alignment: .center) { Color.white.frame(width: 1) Text("Hello,") Text("😺🐶🐢🐰🐳") Text(“Animals!") Color.white.frame(width: 1)
}
VStack(alignment: .leading) { Color.white.frame(width: 1) Text("Hello,") Text("😺🐶🐢🐰🐳") Text(“Animals!") Color.white.frame(width: 1)
}
VStack(alignment: .leading) { Color.white.frame(width: 1) Text("Hello,") Text("😺🐶🐢🐰🐳") Text(“Animals!") Color.white.frame(width: 1)
} .environment(\.layoutDirection, .rightToLeft)
Built-in Alignment Guides
HorizontalAlignment • leading • center • trailing • listRowSeparatorLeading •
listRowSeparatorTrailing Built-in Alignment Guides VerticalAlignment • top • center • bottom • fi rstTextBaseline • lastTextBaseline
HorizontalAlignment • leading • center • trailing • (listRowSeparatorLeading) •
(listRowSeparatorTrailing) Built-in Alignment Guides
VerticalAlignment • top • center • bottom • fi rstTextBaseline
• lastTextBaseline Built-in Alignment Guides
Alignment HorizontalAlignment × VerticalAlignment Built-in Alignment Guides https://developer.apple.com/documentation/swiftui/alignment
Built-in Alignment Guides
Custom Alignment Guide
ୈষ alignmentGuide(_:computeValue:)
ྫ
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } Color.white.frame(width: 1) }
None
None
ղྫ
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", “Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
ղઆ
alignmentGuide(_:computeValue:)
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) func alignmentGuide( _ g: VerticalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat ) -> some View https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-6y3u2 https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-9mdoh
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ج४ͱͳΔAlignment͔ΒͷҐஔΛௐͰ͖ΔViewModi fi er
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ج४ͱͳΔAlignment͔ΒͷҐஔΛௐͰ͖ΔViewModi fi er • ୈ1Ҿ͕ج४ͱͳΔAlignment e.g. VStack(alignment: .leading) ͷதʹೖ͍ͬͯΔViewΛௐ ͍ͨ͠ͳΒ .leading Λࢦఆ
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Circle() .fill(Color.green) .frame(width: 50, height: 50) Color.white.frame(width: 1) }
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ • ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ • ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ • Viewͷwidth, height • ֤Alignment GuideҐஔʢoffsetʣ
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ • ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ • Viewͷwidth, height • ֤Alignment GuideҐஔʢoffsetʣ
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ • ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ • Viewͷwidth, height • ֤Alignment GuideҐஔʢoffsetʣ
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) } 🤔* 2ʁ
🤔* 2ʁ
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ طଘͷΘΓʹ
ϓϨʔϯͳঢ়ଶ == 0 VStack(alignment: .trailing) ˞Πϝʔδ
.trailingͷσϑΥϧτ ϓϨʔϯͳঢ়ଶ == 0 VStack(alignment: .trailing) ˞Πϝʔδ
.trailingͷσϑΥϧτ .alignmentGuide(.trailing) { context in context.width * 2 }
.trailingͷσϑΥϧτ .alignmentGuide(.trailing) { context in context.width * 2 } طଘΛஔ͖͑Δ
.trailingͷσϑΥϧτ .alignmentGuide(.trailing) { context in context.width * 2 } طଘΛஔ͖͑Δ
.trailingͷσϑΥϧτ ͷҐஔ͔Β Ҡಈ͢Δ༁Ͱͳ͍
ϓϨʔϯͳঢ়ଶ == 0 .alignmentGuide(.trailing) { context in context.width * 2
} ˞Πϝʔδ
context.width * 2 ϓϨʔϯͳঢ়ଶ == 0 .alignmentGuide(.trailing) { context in
context.width * 2 } ˞Πϝʔδ
🙅 .trailingͷσϑΥϧτ ͔Β context.width * 2 ͣΒ͢ .alignmentGuide(.trailing) { context
in context.width * 2 } 🙆 .trailingͷσϑΥϧτ ͔Β context.width * 2 ʹஔ͖͑Δ VStack(alignment: .trailing)
func alignmentGuide( _ g: HorizontalAlignment, computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View alignmentGuide(_:computeValue:) • ୈ2Ҿͷclosure • ௐͨ͠ʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢ • ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ • Viewͷwidth, height • ֤Alignment GuideҐஔʢoffsetʣ
subscript(guide: VerticalAlignment) -> CGFloat { get } subscript(guide: HorizontalAlignment) ->
CGFloat { get } ViewDimensions https://developer.apple.com/documentation/swiftui/viewdimensions subscript(explicit guide: VerticalAlignment) -> CGFloat? { get } subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get }
subscript(guide: VerticalAlignment) -> CGFloat { get } subscript(guide: HorizontalAlignment) ->
CGFloat { get } ViewDimensions https://developer.apple.com/documentation/swiftui/viewdimensions subscript(explicit guide: VerticalAlignment) -> CGFloat? { get } subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } == 0 == context.width
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.trailing)
{ context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } ˞ VStackͰ.leading͕ࢦఆ͞Ε͍ͯͳ͍ͷͰɺ ͜Ε୯ମͰϨΠΞτʹӨڹͳ͍
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } != 0
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } == 100
subscript(guide: VerticalAlignment) -> CGFloat { get } subscript(guide: HorizontalAlignment) ->
CGFloat { get } ViewDimensions https://developer.apple.com/documentation/swiftui/viewdimensions subscript(explicit guide: VerticalAlignment) -> CGFloat? { get } subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get }
subscript(guide: VerticalAlignment) -> CGFloat { get } subscript(guide: HorizontalAlignment) ->
CGFloat { get } ViewDimensions https://developer.apple.com/documentation/swiftui/viewdimensions subscript(explicit guide: VerticalAlignment) -> CGFloat? { get } subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[.leading] } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } มԽͳ͠
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ .alignmentGuide(.leading)
{ _ in 100 } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } มԽͳ͠ != nil == 100
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ //
.alignmentGuide(.leading) { _ in // 100 // } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ //
.alignmentGuide(.leading) { _ in // 100 // } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ //
.alignmentGuide(.leading) { _ in // 100 // } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) }
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) // লུ //
.alignmentGuide(.leading) { _ in // 100 // } .alignmentGuide(.trailing) { context in if context.width < 120 { return context[explicit: .leading] ?? -50 } else if context.width < 180 { return context[.trailing] } else { return -50 } } Color.white.frame(width: 1) } == nil
subscript(guide: VerticalAlignment) -> CGFloat { get } subscript(guide: HorizontalAlignment) ->
CGFloat { get } ViewDimensions https://developer.apple.com/documentation/swiftui/viewdimensions subscript(explicit guide: VerticalAlignment) -> CGFloat? { get } subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get } σϑΥϧτɾஔ͖͑ΒΕͨΛऔಘ ஔ͖͑ΒΕͨΛऔಘʢஔ͖͑ΒΕ͍ͯͳ͍߹ nilʣ
💡tips
cf. https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-9mdoh Changing the alignment of one view may have
effects on surrounding views.
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in // লུ } Color.white.frame(width: 1) } .frame(maxHeight: 500) .border(.white)
VStack(alignment: .trailing, spacing: 20) { Color.red.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in // লུ } Color.red.frame(width: 1) } .frame(maxHeight: 500) .border(.white)
VStack(alignment: .trailing, spacing: 20) { Color.red.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in // লུ } Color.red.frame(width: 1) } .frame(maxHeight: 500) .border(.white)
֎ଆͷStackͷframe͕มԽ͠͏Δ
☕ offset(x:y:)
func offset( x: CGFloat = 0, y: CGFloat = 0
) -> some View offset(x:y:) https://developer.apple.com/documentation/swiftui/view/offset(x:y:) • ViewΛਫฏ/ਨํʹҠಈ͢ΔViewModi fi er
VStack { Text("🐶") Text("🐱") Text("🐰") }
VStack { Text("🐶") Text("🐱") .offset(x: 50, y: 100) Text("🐰") }
cf. https://developer.apple.com/documentation/swiftui/view/offset(x:y:) Use offset(x:y:) to shift the displayed contents by
the amount speci fi ed in the x and y parameters. The original dimensions of the view aren’t changed by offsetting the contents.
VStack(spacing: 20) { Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰") Text("Offset by passing horizontal & vertical
distance") .border(Color.green) .padding() } .border(.red) offset(x:y:)
VStack(spacing: 20) { Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰") Text("Offset by passing horizontal & vertical
distance") .border(Color.green) .offset(x: 20, y: 50) .border(Color.gray) .padding() } .border(.red) offset(x:y:)
VStack(spacing: 20) { Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰") Text("Offset by passing horizontal & vertical
distance") .border(Color.green) .offset(x: 20, y: 50) .border(Color.gray) .padding() } .border(.red) offset(x:y:)
VStack(spacing: 20) { Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰") Text("Offset by passing horizontal & vertical
distance") .border(Color.green) .offset(x: 20, y: 50) .border(Color.gray) .padding() } .border(.red) offset(x:y:)
VStack(spacing: 20) { Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰") Text("Offset by passing horizontal & vertical
distance") .border(Color.green) .offset(x: 20, y: 50) .border(Color.gray) .padding() } .border(.red) offset(x:y:)
alignmentGuide(_:computeValue:) vs. offset(x:y:)
alignmentGuide(_:computeValue:)
alignmentGuide(_:computeValue:) offset(x:y:)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.orange) .offset(x: 20, y: 50) .border(Color.pink) .offset(x: 20, y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.orange) .offset(x: 20, y: 50) .border(Color.pink) .offset(x: 20, y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.orange) .offset(x: 20, y: 50) .border(Color.pink) .offset(x: 20, y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.orange) .offset(x: 20, y: 50) .border(Color.pink) .offset(x: -20, y: 50) .border(Color.gray)
Text("Offset by passing horizontal & vertical distance") .border(Color.green) .offset(x: 20,
y: 50) .border(Color.orange) .offset(x: 20, y: 50) .border(Color.pink) .offset(x: -20, y: 50) .border(Color.gray)
ୈষ Custom Alignment Guide
ྫ
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle() .fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢") .font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”) .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText") .font(.title) Color.white.frame(height: 1) }
None
ղྫ
extension VerticalAlignment { private struct BlueBarTitleAlignment: AlignmentID { static func
defaultValue(in context: ViewDimensions) -> CGFloat { context[.bottom] } } static let blueBarTitleAlignment = VerticalAlignment( BlueBarTitleAlignment.self ) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .blueBarTitleAlignment) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text("🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text("Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .blueBarTitleAlignment) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) .alignmentGuide(.blueBarTitleAlignment) { context in context[.firstTextBaseline] } } VStack { Text("🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar").font(.title) .alignmentGuide(.blueBarTitleAlignment) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1") .font(.caption) } Text("Side\nText").font(.title) Color.white.frame(height: 1) }
ղઆ
Take 1
Built-in Alignment Guides
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle() .fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢") .font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”) .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText") .font(.title) Color.white.frame(height: 1) }
HStack(alignment: .firstTextBaseline) { Color.white.frame(height: 1) VStack { Rectangle() .fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢") .font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”) .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText") .font(.title) Color.white.frame(height: 1) }
HStack(alignment: .firstTextBaseline) { Color.white.frame(height: 1) VStack { Rectangle() .fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢") .font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”) .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText") .font(.title) Color.white.frame(height: 1) }
HStack(alignment: .firstTextBaseline) { Color.white.frame(height: 1) VStack { Rectangle() .fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text(“🐰🐢") .font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”) .font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text(“Side\nText") .font(.title) Color.white.frame(height: 1) } ࣮ݱ͍ͨ͠ϨΠΞτ
Take 2
alignmentGuide(_:computeValue:)
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar”).font(.title) } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar").font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar").font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) } มԽͳ͠
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack(alignment: .center) { Rectangle().fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar").font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } } VStack(alignment: .center) { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) } มԽͳ͠
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack(alignment: .center) { Rectangle().fill(.blue) .frame(width:
100, height: 400) Text("Long Long Long Blue Bar").font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } } VStack(alignment: .center) { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) } มԽͳ͠
Built-in Alignment Guides + alignmentGuide(_:computeValue:) StackΛ·͍ͨͰViewΛἧ͑Δ͜ͱͰ͖ͳ͍
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar”).font(.title) } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1").font(.caption) } Text(“Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar").font(.title) } .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1").font(.caption) } .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } Text(“Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar").font(.title) } .alignmentGuide(.bottom) { context in context[.firstTextBaseline] } VStack { Text(“🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1").font(.caption) } .alignmentGuide(.bottom) { context in ???????????????? } Text(“Side\nText").font(.title) Color.white.frame(height: 1) } ̎ͭͷςΩετʹἧ͑Δͪΐ͏Ͳྑ͍ΛฦͤΔ…ʁ
Take 3
Custom Alignment Guide
protocol AlignmentID
public protocol AlignmentID { static func defaultValue(in context: ViewDimensions) ->
CGFloat }
public protocol AlignmentID { static func defaultValue(in context: ViewDimensions) ->
CGFloat } HStackͳͲͰࢦఆͨ͠ࡍͷσϑΥϧτ
private struct BlueBarTitleAlignment: AlignmentID { static func defaultValue(in context: ViewDimensions)
-> CGFloat { context[.bottom] } }
extension VerticalAlignment { private struct BlueBarTitleAlignment: AlignmentID { static func
defaultValue(in context: ViewDimensions) -> CGFloat { context[.bottom] } } static let blueBarTitleAlignment = VerticalAlignment( BlueBarTitleAlignment.self ) }
HStack(alignment: .bottom) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text("🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1”) .font(.caption) } Text("Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .blueBarTitleAlignment) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) } VStack { Text("🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar”).font(.title) Text("iOSDC 2022 sample code #1") .font(.caption) } Text("Side\nText").font(.title) Color.white.frame(height: 1) }
HStack(alignment: .blueBarTitleAlignment) { Color.white.frame(height: 1) VStack { Rectangle().fill(.blue) .frame(width: 100,
height: 400) Text("Long Long Long Blue Bar") .font(.title) .alignmentGuide(.blueBarTitleAlignment) { context in context[.firstTextBaseline] } } VStack { Text("🐰🐢").font(.title) Rectangle().fill(.blue) .frame(width: 150, height: 200) Text("Short Blue Bar").font(.title) .alignmentGuide(.blueBarTitleAlignment) { context in context[.firstTextBaseline] } Text("iOSDC 2022 sample code #1") .font(.caption) } Text("Side\nText").font(.title) Color.white.frame(height: 1) }
• StackΛލ͍ͰViewΛἧ͍͑ͨ Custom Alignment Guide ͷ͍ॴ
• StackΛލ͍ͰViewΛἧ͍͑ͨ • alignmentGuide(_:computeValue:) Λ͍ճ͍ͨ͠ • ViewDimentionsͷ͚ͩͰܭࢉͰ͖Δ߹ Custom Alignment Guide
ͷ͍ॴ
VStack(alignment: .trailing, spacing: 20) { Color.white.frame(width: 1) ForEach(["Dog", "Crocodile", "Horse",
"Rhinoceros"], id: \.self) { Text($0) .font(.largeTitle) .padding() .background(Color.green) } .alignmentGuide(.trailing) { context in context.width * 2 } Color.white.frame(width: 1) }
Stack × Custom Alignment Guide ͷ ੍
None
̎ϲॴἧ͑
۠Γઢ
None
VStack(alignment: .profileListRowTextAlignment, spacing: 8) { // লུ HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .font(.caption) Text("1234567890") .font(.caption) } // লུ }
VStack(alignment: .profileListRowTextAlignment, spacing: 8) { // লུ HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .font(.caption) Text("1234567890") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] - 30 } } // লུʢଞͷTextʹalignmentGuideΛ༩ʣ }
VStack(alignment: .profileListRowTextAlignment, spacing: 8) { // লུ HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .font(.caption) Text("1234567890") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] - 30 } } // লུʢଞͷTextʹalignmentGuideΛ༩ʣ }
VStack(alignment: .profileListRowTextAlignment, spacing: 8) { // লུ HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] } Text("1234567890") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] - 30 } } // লུʢଞͷTextʹalignmentGuideΛ༩ʣ }
VStack(alignment: .profileListRowTextAlignment, spacing: 8) { // লུ HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] } Text("1234567890") .font(.caption) .alignmentGuide(.profileListRowTextAlignment) { $0[.leading] - 30 } } // লུʢଞͷTextʹalignmentGuideΛ༩ʣ } ͦΕͧΕ͕HStack͝ͱҠಈͤ͞ΔͷͰἧΘͳ͍…
• ಉ͡StackͷෳͷViewΛἧ͑ΒΕͳ͍ • ج४ͱͳΔ1ͭͷAlignmentʹରͯ͠ରͷViewΛؚΉStack શମͷҐஔΛௐ͢ΔΈͷͨΊ Stack × Custom Alignment Guide
ͷ੍
☕ Grid
VStack { SpeakerHeader() Grid(alignment: .leading, verticalSpacing: 8) { Divider() GridRow
{ Text("ϫΠϯΤΩεύʔτೝఆ൪߸") .lineLimit(1) .font(.caption) Text("1234567890") .font(.caption) } Divider() GridRow { Text("໊લ") .font(.caption) Text("monoqlo") .font(.caption) } GridRow { Text("ి൪߸") .font(.caption) Text("XXX-XXXX-XXXXX") .font(.caption) } } } .padding() .overlay( RoundedRectangle(cornerRadius: 8) .stroke(.gray) ) https://developer.apple.com/documentation/swiftui/grid
☕ • frame(width:height:alignment:) • frame(minWidth:idealWidth:maxWidth:minHeight:ide alHeight:maxHeight:alignment:)
HStack { Image("monoqloIcon") .resizable() .frame(width: 50, height: 50) .clipShape(Circle()) HStack
{ VStack(alignment: .leading) { Text("monoqlo") .font(.headline) Text("iOSDC 2022") .font(.body) } } .border(.gray) Image(systemName: "heart") .foregroundColor(.pink) .padding() .border(.gray) } .frame(width: 300) .padding() .border(.green)
HStack { Image("monoqloIcon") .resizable() .frame(width: 50, height: 50) .clipShape(Circle()) HStack
{ VStack(alignment: .leading) { Text("monoqlo") .font(.headline) Text("iOSDC 2022") .font(.body) } .frame(maxWidth: .infinity, alignment: .leading) } .border(.gray) Image(systemName: "heart") .foregroundColor(.pink) .padding() .border(.gray) } .frame(width: 300) .padding() .border(.green)
Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022 ⭐ """) .border(.red)
Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022 ⭐ """) .border(.red)
.frame(alignment: .bottom)) .border(.white)
Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022 ⭐ """) .border(.red)
.alignmentGuide(.bottom) { $0[.firstTextBaseline] } .frame(alignment: .bottom)) .border(.white)
VStack { Text("top") Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022
⭐ """) .border(.red) Text("bottom") }
VStack { Text("top") Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022
⭐ """) .border(.red) Text("bottom") } .frame(height: 200, alignment: .init(horizontal: .center, vertical: .frameTextAlignment)) .border(.white)
VStack { Text("top") Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022
⭐ """) .border(.red) Text("bottom") } .frame(height: 200, alignment: .init(horizontal: .center, vertical: .frameTextAlignment)) .border(.white) private extension VerticalAlignment { struct FrameTextAlignment: AlignmentID { static func defaultValue(in context: ViewDimensions) -> CGFloat { context[.bottom] } } static let frameTextAlignment = VerticalAlignment( FrameTextAlignment.self ) }
VStack { Text("top") Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022
⭐ """) .border(.red) Text("bottom") } .frame(height: 200, alignment: .init(horizontal: .center, vertical: .frameTextAlignment)) .border(.white)
VStack { Text("top") Text(""" ⭐ monoqlo ⭐ ⭐ iOSDC 2022
⭐ """) .border(.red) .alignmentGuide(.frameTextAlignment) { $0[.firstTextBaseline] } Text("bottom") } .frame(height: 200, alignment: .init(horizontal: .center, vertical: .frameTextAlignment)) .border(.white)
🤔 alignmentGuide(_:computeValue:) vs. offset(x:y:)
alignmentGuide(_:computeValue:) offset(x:y:)
alignmentGuide(_:computeValue:) offset(x:y:) ※ Stackͷalignmentʹରͯͬͨ࣌͠
• frame(alignment:) • frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight: maxHeight:alignment:) + alignmentGuide(_:computeValue:)
Alignment Guide ೖͰ͖ͨͰ͠ΐ͏͔ʁ
ࣗݾհ
@monoqloʢͷ͘Ζʣ • 2લ͔ΒϦΫϧʔτͷਓ • ελσΟαϓϦENGLISH୲
None
None
None
Appendix
• Alignment • https://developer.apple.com/documentation/swiftui/alignment • https://developer.apple.com/documentation/swiftui/verticalalignment • https://developer.apple.com/documentation/swiftui/horizontalalignment • https://developer.apple.com/documentation/swiftui/aligning-views-within-a-stack
• alignmentguide(_:computevalue:) • https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-9mdoh • https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-6y3u2 • https://developer.apple.com/documentation/swiftui/viewdimensions Appendix
• Custom Alignment Guide • https://developer.apple.com/documentation/swiftui/aligning-views-across-stacks • https://developer.apple.com/documentation/swiftui/alignmentid • https://developer.apple.com/documentation/swiftui/verticalalignment/init(_:)
• https://developer.apple.com/documentation/swiftui/horizontalalignment/init(_:) • offset(x:y:) • https://developer.apple.com/documentation/swiftui/view/offset(x:y:) Appendix
• Grid • https://developer.apple.com/documentation/swiftui/grid • Debug • https://developer.apple.com/documentation/swiftui/inspecting-view-layout Appendix