94 lines
2.4 KiB
Swift
94 lines
2.4 KiB
Swift
//
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// AsyncPicker.swift
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// TuskerComponents
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//
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// Created by Shadowfacts on 4/9/24.
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//
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import SwiftUI
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public struct AsyncPicker<V: Hashable, Content: View>: View {
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let titleKey: LocalizedStringKey
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#if !os(visionOS)
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@available(iOS, obsoleted: 16.0, message: "Switch to LabeledContent")
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let labelHidden: Bool
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#endif
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let alignment: Alignment
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@Binding var value: V
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let onChange: (V) async -> Bool
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let content: Content
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@State private var isLoading = false
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public init(_ titleKey: LocalizedStringKey, labelHidden: Bool = false, alignment: Alignment = .center, value: Binding<V>, onChange: @escaping (V) async -> Bool, @ViewBuilder content: () -> Content) {
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self.titleKey = titleKey
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#if !os(visionOS)
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self.labelHidden = labelHidden
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#endif
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self.alignment = alignment
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self._value = value
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self.onChange = onChange
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self.content = content()
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}
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public var body: some View {
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#if os(visionOS)
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LabeledContent(titleKey) {
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picker
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}
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#else
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if #available(iOS 16.0, *) {
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LabeledContent(titleKey) {
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picker
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}
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} else if labelHidden {
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picker
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} else {
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HStack {
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Text(titleKey)
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Spacer()
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picker
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}
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}
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#endif
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}
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private var picker: some View {
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ZStack(alignment: alignment) {
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Picker(titleKey, selection: Binding(get: {
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value
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}, set: { newValue in
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let oldValue = value
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value = newValue
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isLoading = true
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Task {
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let operationCompleted = await onChange(newValue)
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if !operationCompleted {
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value = oldValue
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}
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isLoading = false
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}
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})) {
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content
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}
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.labelsHidden()
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.opacity(isLoading ? 0 : 1)
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if isLoading {
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ProgressView()
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}
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}
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}
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}
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#Preview {
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@State var value = 0
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return AsyncPicker("", value: $value) { _ in
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try! await Task.sleep(nanoseconds: NSEC_PER_SEC)
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return true
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} content: {
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ForEach(0..<10) {
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Text("\($0)").tag($0)
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}
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}
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}
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