Created
September 22, 2024 12:49
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| import SwiftUI | |
| struct EnumPicker<Enum>: View where Enum: CaseIterable & Hashable, Enum.AllCases: RandomAccessCollection { | |
| typealias Element = Enum.AllCases.Element | |
| private var enumType: Enum.Type | |
| @Binding private var selection: Element | |
| init(_ enumType: Enum.Type, selection: Binding<Element>) { | |
| self.enumType = enumType | |
| _selection = selection | |
| } | |
| var body: some View { | |
| Picker(String(describing: enumType), selection: $selection) { | |
| ForEach(Enum.allCases, id: \.self) { value in | |
| Text("\(value)") | |
| .tag(value) | |
| } | |
| } | |
| } | |
| } | |
| extension Font.Leading: CaseIterable { | |
| public static var allCases: [Font.Leading] = [ | |
| .loose, | |
| .standard, | |
| .tight, | |
| ] | |
| } | |
| extension Font.Design: CaseIterable { | |
| public static var allCases: [Font.Design] = [ | |
| .default, | |
| .serif, | |
| .rounded, | |
| .monospaced, | |
| ] | |
| } | |
| #Preview(traits: .fixedLayout(width: 300, height: 300)) { | |
| struct Preview: View { | |
| @State var leading: Font.Leading = .standard | |
| @State var design: Font.Design = .default | |
| @State var dynamicTypeSize: DynamicTypeSize = .medium | |
| var body: some View { | |
| VStack { | |
| EnumPicker(Font.Leading.self, selection: $leading) | |
| EnumPicker(Font.Design.self, selection: $design) | |
| EnumPicker(DynamicTypeSize.self, selection: $dynamicTypeSize) | |
| } | |
| .dynamicTypeSize(dynamicTypeSize) | |
| .padding() | |
| } | |
| } | |
| return Preview() | |
| } |
Author
YusukeHosonuma
commented
Sep 22, 2024
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