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@monoqloʢͷ͘Ζʣ
ೖSwiftUI Alignment Guide
iOSDC Japan 2022
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͡Ίʹ
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• ʮೖʯͱ͋ΔΑ͏ʹϝΠϯλʔήοτSwiftUIॳ৺ऀͰ͢
• ۩ମతʹŋŋŋ
• alignmentGuide(_:computeValue:) ͬͨ͜ͱͳ͍
• Custom Alignment Guideͬͨ͜ͱͳ͍
• ͬͨ͜ͱ͋Δ͚ͲΑ͘Θ͔Βͳ͔ͬͨ
ॳ৺ऀ͚ͷτʔΫͰ͢
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• 2,3લ͔ͬ͢Β͔ΜͩͬͨެࣜυΩϡϝϯτ…
• ͍ͭͷ·ʹ͔େॆ࣮
• ࠷ֶۙͼ࢝ΊͨਓٯʹΑ͍ͬͯ͘ΔՄೳੑ😇
• ਖ਼͜ͷτʔΫͷඞཁੑΛٙ͏΄ͲΊͪΌͪ͘Όྑ͍ࢿྉ
• ͔͍ͭ·ΜͰҾ༻ͭͭ͠ղઆ
• εϥΠυͷ࠷ޙʹࢀߟจݙͱͯ͠URLهࡌ
࠷ۙͷެࣜυΩϡϝϯτେॆ࣮
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ୈষ
Alignment Guideͱ
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ྫ
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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)
}
}
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No content
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ղྫ
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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)
}
}
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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)
}
}
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ղઆ
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VStack {
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text("Animals!")
}
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VStack {
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text("Animals!")
}
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VStack {
Color.white.frame(width: 1)
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text(“Animals!")
Color.white.frame(width: 1)
}
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VStack(alignment: .center) {
Color.white.frame(width: 1)
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text(“Animals!")
Color.white.frame(width: 1)
}
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VStack(alignment: .leading) {
Color.white.frame(width: 1)
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text(“Animals!")
Color.white.frame(width: 1)
}
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VStack(alignment: .leading) {
Color.white.frame(width: 1)
Text("Hello,")
Text("😺🐶🐢🐰🐳")
Text(“Animals!")
Color.white.frame(width: 1)
}
.environment(\.layoutDirection, .rightToLeft)
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Built-in Alignment Guides
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HorizontalAlignment
• leading
• center
• trailing
• listRowSeparatorLeading
• listRowSeparatorTrailing
Built-in Alignment Guides
VerticalAlignment
• top
• center
• bottom
•
fi
rstTextBaseline
• lastTextBaseline
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HorizontalAlignment
• leading
• center
• trailing
• (listRowSeparatorLeading)
• (listRowSeparatorTrailing)
Built-in Alignment Guides
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VerticalAlignment
• top
• center
• bottom
•
fi
rstTextBaseline
• lastTextBaseline
Built-in Alignment Guides
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Alignment
HorizontalAlignment
×
VerticalAlignment
Built-in Alignment Guides
https://developer.apple.com/documentation/swiftui/alignment
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Built-in Alignment Guides
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Custom Alignment Guide
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ୈষ
alignmentGuide(_:computeValue:)
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ྫ
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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)
}
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No content
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No content
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ղྫ
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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)
}
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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)
}
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ղઆ
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alignmentGuide(_:computeValue:)
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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
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ج४ͱͳΔAlignment͔ΒͷҐஔΛௐͰ͖ΔViewModi
fi
er
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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
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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)
}
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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)
}
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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)
}
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
• ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
• ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
• Viewͷwidth, height
• ֤Alignment GuideҐஔʢoffsetʣ
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
• ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
• Viewͷwidth, height
• ֤Alignment GuideҐஔʢoffsetʣ
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
• ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
• Viewͷwidth, height
• ֤Alignment GuideҐஔʢoffsetʣ
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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)
}
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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)
}
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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)
}
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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)
}
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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
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🤔* 2ʁ
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐ͢Δʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
طଘͷΘΓʹ
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ϓϨʔϯͳঢ়ଶ == 0
VStack(alignment:
.trailing)
˞Πϝʔδ
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.trailingͷσϑΥϧτ
ϓϨʔϯͳঢ়ଶ == 0
VStack(alignment:
.trailing)
˞Πϝʔδ
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.trailingͷσϑΥϧτ
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
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.trailingͷσϑΥϧτ
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
طଘΛஔ͖͑Δ
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.trailingͷσϑΥϧτ
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
طଘΛஔ͖͑Δ
.trailingͷσϑΥϧτ
ͷҐஔ͔Β
Ҡಈ͢Δ༁Ͱͳ͍
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ϓϨʔϯͳঢ়ଶ == 0
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
˞Πϝʔδ
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context.width * 2
ϓϨʔϯͳঢ়ଶ == 0
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
˞Πϝʔδ
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🙅 .trailingͷσϑΥϧτ ͔Β context.width * 2 ͣΒ͢
.alignmentGuide(.trailing)
{ context in
context.width * 2
}
🙆 .trailingͷσϑΥϧτ ͔Β context.width * 2 ʹஔ͖͑Δ
VStack(alignment:
.trailing)
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func alignmentGuide(
_ g: HorizontalAlignment,
computeValue: @escaping (ViewDimensions) -> CGFloat
) -> some View
alignmentGuide(_:computeValue:)
• ୈ2Ҿͷclosure
• ௐͨ͠ʢج४Ґஔ͔ΒͲΕ͘Β͍ͣΒ͔͢ʣΛฦ͢
• ҾͷViewDimensions͔Βར༻Ͱ͖Δͷ
• Viewͷwidth, height
• ֤Alignment GuideҐஔʢoffsetʣ
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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 }
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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 }
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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)
}
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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)
}
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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)
}
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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
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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)
}
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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
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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)
}
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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
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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
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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 }
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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 }
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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)
}
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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)
}
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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
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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
Slide 81
Slide 81 text
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)
}
Slide 82
Slide 82 text
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)
}
Slide 83
Slide 83 text
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)
}
Slide 84
Slide 84 text
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
Slide 85
Slide 85 text
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
Slide 86
Slide 86 text
💡tips
Slide 87
Slide 87 text
cf. https://developer.apple.com/documentation/swiftui/view/alignmentguide(_:computevalue:)-9mdoh
Changing the alignment of one view may have effects
on surrounding views.
Slide 88
Slide 88 text
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)
Slide 89
Slide 89 text
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)
Slide 90
Slide 90 text
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)
Slide 91
Slide 91 text
֎ଆͷStackͷframe͕มԽ͠͏Δ
Slide 92
Slide 92 text
☕ offset(x:y:)
Slide 93
Slide 93 text
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
Slide 94
Slide 94 text
VStack {
Text("🐶")
Text("🐱")
Text("🐰")
}
Slide 95
Slide 95 text
VStack {
Text("🐶")
Text("🐱")
.offset(x: 50, y: 100)
Text("🐰")
}
Slide 96
Slide 96 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.
Slide 97
Slide 97 text
VStack(spacing: 20) {
Text("🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰🐰")
Text("Offset by passing horizontal & vertical distance")
.border(Color.green)
.padding()
}
.border(.red)
offset(x:y:)
Slide 98
Slide 98 text
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:)
Slide 99
Slide 99 text
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:)
Slide 100
Slide 100 text
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:)
Slide 101
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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:)
Slide 102
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alignmentGuide(_:computeValue:)
vs.
offset(x:y:)
Slide 103
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alignmentGuide(_:computeValue:)
Slide 104
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alignmentGuide(_:computeValue:) offset(x:y:)
Slide 105
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Text("Offset by passing horizontal & vertical distance")
.border(Color.green)
.offset(x: 20, y: 50)
.border(Color.gray)
Slide 106
Slide 106 text
Text("Offset by passing horizontal & vertical distance")
.border(Color.green)
.offset(x: 20, y: 50)
.border(Color.gray)
Slide 107
Slide 107 text
Text("Offset by passing horizontal & vertical distance")
.border(Color.green)
.offset(x: 20, y: 50)
.border(Color.gray)
Slide 108
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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)
Slide 109
Slide 109 text
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)
Slide 110
Slide 110 text
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)
Slide 111
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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)
Slide 112
Slide 112 text
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)
Slide 113
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ୈষ
Custom Alignment Guide
Slide 114
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ྫ
Slide 115
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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)
}
Slide 116
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No content
Slide 117
Slide 117 text
ղྫ
Slide 118
Slide 118 text
extension VerticalAlignment {
private struct BlueBarTitleAlignment: AlignmentID {
static func defaultValue(in context: ViewDimensions) -> CGFloat {
context[.bottom]
}
}
static let blueBarTitleAlignment = VerticalAlignment(
BlueBarTitleAlignment.self
)
}
Slide 119
Slide 119 text
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)
}
Slide 120
Slide 120 text
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)
}
Slide 121
Slide 121 text
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)
}
Slide 122
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ղઆ
Slide 123
Slide 123 text
Take 1
Slide 124
Slide 124 text
Built-in Alignment Guides
Slide 125
Slide 125 text
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)
}
Slide 126
Slide 126 text
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)
}
Slide 127
Slide 127 text
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)
}
Slide 128
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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
Slide 129
Slide 129 text
Take 2
Slide 130
Slide 130 text
alignmentGuide(_:computeValue:)
Slide 131
Slide 131 text
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)
}
Slide 132
Slide 132 text
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)
}
Slide 133
Slide 133 text
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
Slide 134
Slide 134 text
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
Slide 135
Slide 135 text
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
Slide 136
Slide 136 text
Built-in Alignment Guides
+
alignmentGuide(_:computeValue:)
StackΛ·͍ͨͰViewΛἧ͑Δ͜ͱͰ͖ͳ͍
Slide 137
Slide 137 text
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)
}
Slide 138
Slide 138 text
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)
}
Slide 139
Slide 139 text
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
Slide 140
Slide 140 text
Take 3
Slide 141
Slide 141 text
Custom Alignment Guide
Slide 142
Slide 142 text
protocol AlignmentID
Slide 143
Slide 143 text
public protocol AlignmentID {
static func defaultValue(in context: ViewDimensions) -> CGFloat
}
Slide 144
Slide 144 text
public protocol AlignmentID {
static func defaultValue(in context: ViewDimensions) -> CGFloat
}
HStackͳͲͰࢦఆͨ͠ࡍͷσϑΥϧτ
Slide 145
Slide 145 text
private struct BlueBarTitleAlignment: AlignmentID {
static func defaultValue(in context: ViewDimensions) -> CGFloat {
context[.bottom]
}
}
Slide 146
Slide 146 text
extension VerticalAlignment {
private struct BlueBarTitleAlignment: AlignmentID {
static func defaultValue(in context: ViewDimensions) -> CGFloat {
context[.bottom]
}
}
static let blueBarTitleAlignment = VerticalAlignment(
BlueBarTitleAlignment.self
)
}
Slide 147
Slide 147 text
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)
}
Slide 148
Slide 148 text
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)
}
Slide 149
Slide 149 text
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)
}
Slide 150
Slide 150 text
• StackΛލ͍ͰViewΛἧ͍͑ͨ
Custom Alignment Guide ͷ͍ॴ
Slide 151
Slide 151 text
• StackΛލ͍ͰViewΛἧ͍͑ͨ
• alignmentGuide(_:computeValue:) Λ͍ճ͍ͨ͠
• ViewDimentionsͷ͚ͩͰܭࢉͰ͖Δ߹
Custom Alignment Guide ͷ͍ॴ
Slide 152
Slide 152 text
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)
}
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Stack × Custom Alignment Guide
ͷ ੍
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No content
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̎ϲॴἧ͑
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۠Γઢ
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No content
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VStack(alignment: .profileListRowTextAlignment, spacing: 8) {
// লུ
HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸")
.font(.caption)
Text("1234567890")
.font(.caption)
}
// লུ
}
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VStack(alignment: .profileListRowTextAlignment, spacing: 8) {
// লུ
HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸")
.font(.caption)
Text("1234567890")
.font(.caption)
.alignmentGuide(.profileListRowTextAlignment) {
$0[.leading] - 30
}
}
// লུʢଞͷTextʹalignmentGuideΛ༩ʣ
}
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VStack(alignment: .profileListRowTextAlignment, spacing: 8) {
// লུ
HStack(spacing: 24) {
Text("ϫΠϯΤΩεύʔτೝఆ൪߸")
.font(.caption)
Text("1234567890")
.font(.caption)
.alignmentGuide(.profileListRowTextAlignment) {
$0[.leading] - 30
}
}
// লུʢଞͷTextʹalignmentGuideΛ༩ʣ
}
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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
}
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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…
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• ಉ͡StackͷෳͷViewΛἧ͑ΒΕͳ͍
• ج४ͱͳΔ1ͭͷAlignmentʹରͯ͠ରͷViewΛؚΉStack
શମͷҐஔΛௐ͢ΔΈͷͨΊ
Stack × Custom Alignment Guide ͷ੍
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☕ Grid
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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
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☕
• frame(width:height:alignment:)
• frame(minWidth:idealWidth:maxWidth:minHeight:ide
alHeight:maxHeight:alignment:)
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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)
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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)
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Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
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Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
.frame(alignment: .bottom))
.border(.white)
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Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
.alignmentGuide(.bottom) {
$0[.firstTextBaseline]
}
.frame(alignment: .bottom))
.border(.white)
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VStack {
Text("top")
Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
Text("bottom")
}
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VStack {
Text("top")
Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
Text("bottom")
}
.frame(height: 200,
alignment: .init(horizontal: .center,
vertical: .frameTextAlignment))
.border(.white)
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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
)
}
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VStack {
Text("top")
Text("""
⭐ monoqlo ⭐
⭐ iOSDC 2022 ⭐
""")
.border(.red)
Text("bottom")
}
.frame(height: 200,
alignment: .init(horizontal: .center,
vertical: .frameTextAlignment))
.border(.white)
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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)
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🤔
alignmentGuide(_:computeValue:)
vs.
offset(x:y:)
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alignmentGuide(_:computeValue:) offset(x:y:)
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alignmentGuide(_:computeValue:) offset(x:y:)
※ Stackͷalignmentʹରͯͬͨ࣌͠
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• frame(alignment:)
• frame(minWidth:idealWidth:maxWidth:minHeight:idealHeight:
maxHeight:alignment:)
+
alignmentGuide(_:computeValue:)
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Alignment Guide
ೖͰ͖ͨͰ͠ΐ͏͔ʁ
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ࣗݾհ
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@monoqloʢͷ͘Ζʣ
• 2લ͔ΒϦΫϧʔτͷਓ
• ελσΟαϓϦENGLISH୲
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No content
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No content
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No content
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Appendix
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• 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
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• 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
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• Grid
• https://developer.apple.com/documentation/swiftui/grid
• Debug
• https://developer.apple.com/documentation/swiftui/inspecting-view-layout
Appendix