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| import SwiftUI | |
| // Xcode: 16.0 | |
| // Swift: 6.0 | |
| struct EnumPicker<Enum>: View where Enum: CaseIterable & Hashable, Enum == Enum.AllCases.Element, Enum.AllCases: RandomAccessCollection { | |
| @Binding var selection: Enum | |
| var body: some View { | |
| Picker(String(describing: Enum.self), selection: $selection) { | |
| ForEach(Enum.allCases, id: \.self) { value in | |
| Text("\(value)") | |
| .tag(value) | |
| } | |
| } | |
| } | |
| } | |
| extension Font.Leading: @retroactive CaseIterable { | |
| public static let allCases: [Self] = [ | |
| .loose, | |
| .standard, | |
| .tight, | |
| ] | |
| } | |
| extension Font.Design: @retroactive CaseIterable { | |
| public static let allCases: [Self] = [ | |
| .default, | |
| .serif, | |
| .rounded, | |
| .monospaced, | |
| ] | |
| } | |
| #Preview(traits: .fixedLayout(width: 300, height: 300)) { | |
| @Previewable @State var leading: Font.Leading = .standard | |
| @Previewable @State var design: Font.Design = Font.Design.default | |
| @Previewable @State var dynamicTypeSize: DynamicTypeSize = .medium | |
| VStack { | |
| EnumPicker(selection: $leading) | |
| EnumPicker(selection: $design) | |
| EnumPicker(selection: $dynamicTypeSize) | |
| } | |
| .dynamicTypeSize(dynamicTypeSize) | |
| .padding() | |
| } |
Author
Koshimizu-Takehito
commented
Sep 23, 2024
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