GeometryReader { geometry in
let len = geometry.size.width * 0.4
Path { path in
...
}
}breaks the compiler in Xcode 11 beta 4. Without line 2 it passes compilation. Is it not permitted to declare local contants and variables in GeometryReader?
There are two ways to fix this
First, move local contants and variables inside Path closure
GeometryReader { geometry in
Path { path in
let width = geometry.size.width
let height = geometry.size.height
path.move(
to: CGPoint(
x: 0,
y: 0
)
)
path.addLine(
to: CGPoint(
x: width,
y: height
)
)
}
.stroke(Color.black)
}Second, define return type of GeometryReader closure
GeometryReader { geometry -> ShapeView<StrokedShape<Path>, Color> in
let width = geometry.size.width
let height = geometry.size.height
return Path { path in
path.move(
to: CGPoint(
x: 0,
y: 0
)
)
path.addLine(
to: CGPoint(
x: width,
y: height
)
)
}
.stroke(Color.black)
}There are two ways to fix this
First, move local contants and variables inside Path closure
GeometryReader { geometry in
Path { path in
let width = geometry.size.width
let height = geometry.size.height
path.move(
to: CGPoint(
x: 0,
y: 0
)
)
path.addLine(
to: CGPoint(
x: width,
y: height
)
)
}
.stroke(Color.black)
}Second, define return type of GeometryReader closure
GeometryReader { geometry -> ShapeView<StrokedShape<Path>, Color> in
let width = geometry.size.width
let height = geometry.size.height
return Path { path in
path.move(
to: CGPoint(
x: 0,
y: 0
)
)
path.addLine(
to: CGPoint(
x: width,
y: height
)
)
}
.stroke(Color.black)
}