Consider the following ViewModifier that applies padding to a particular View
enum Padding {
case small
case medium
case large
}
private struct PaddingModifier: ViewModifier {
var edgeSet: Edge.Set = .all
var size: Padding
func body(content: Content) -> some View {
return content.padding(edgeSet, getSize())
}
func getSize() -> CGFloat {
switch size {
case .small:
return 2
case .medium:
return 8
case .large:
return 16
}
}
}
To make the ViewModifier more readable, typically I'd add an extension function to View
extension View {
func padding(_ size: Padding, _ set: Edge.Set = .all) -> some View {
return modifier(PaddingModifier(edgeSet: set, size: size))
}
}
However, let's say I want to apply this modifier to an arbitrary list of Edge.Set values. How can I write a function with the signature (Padding, [Edge.Set]) -> some View that applies PaddingModifier for each Edge.Set?
My first thought was something like below, but Self cannot conform to some View
extension View {
func padding(_ size: Padding, _ set: Edge.Set = .all) -> some View {
return modifier(PaddingModifier(edgeSet: set, size: size))
}
func padding(_ size: Padding, _ set: [Edge.Set]) -> some View {
set.reduce(self) { $0.padding(size, $1) }
}
}