Adding SwiftUI wrapper for DurationPicker

Package.swift

@@ -12,12 +12,19 @@ let package = Package(
     .library(
       name: "DurationPicker",
       targets: ["DurationPicker"]),
+    .library(
+      name: "DurationPickerSwiftUI",
+      targets: ["DurationPickerSwiftUI"]),
   ],
   dependencies: [],
   targets: [
     .target(
       name: "DurationPicker",
       dependencies: []),
+    .target(
+      name: "DurationPickerSwiftUI",
+      dependencies: ["DurationPicker"]
+    ),
     .testTarget(
       name: "DurationPickerTests",
       dependencies: ["DurationPicker"]),

Sources/DurationPickerSwiftUI/Public/DurationPickerView.swift

@@ -0,0 +1,188 @@
+/// MIT License
+///
+/// Copyright (c) 2025 Vis Fitness Inc.
+///
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+///
+/// The above copyright notice and this permission notice shall be included in all
+/// copies or substantial portions of the Software.
+///
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+/// SOFTWARE.
+
+import SwiftUI
+import DurationPicker
+
+/// A customizable control for inputting time values ranging between 0 and 24 hours. It serves as a drop-in replacement of [UIDatePicker](https://developer.apple.com/documentation/uikit/uidatepicker) with [countDownTimer](https://developer.apple.com/documentation/uikit/uidatepicker/mode/countdowntimer) mode with additional functionality for time input.
+///
+/// You can use a duration picker to allow a user to enter a time interval between 0 and 24 hours.
+public struct DurationPickerView: UIViewRepresentable {
+  public init(_ duration: Binding<TimeInterval>, components: Components = .hourMinuteSecond, hourInterval: Int = 1, minuteInterval: Int = 1, secondInterval: Int = 1, minumumDuration: TimeInterval? = nil, maximumDuration: TimeInterval? = nil) {
+    self._duration = duration
+    self.mode = components
+    self.hourInterval = hourInterval
+    self.minuteInterval = minuteInterval
+    self.secondInterval = secondInterval
+    self.minumumDuration = minumumDuration
+    self.maximumDuration = maximumDuration
+  }
+
+  // This has to be public to comply with UIViewRepresentable, but we don't actually want it to show up in the doc.
+  @_documentation(visibility: internal)
+  public typealias UIViewType = DurationPicker
+
+  /// The components displayed by the duration picker.
+  ///
+  /// The mode determines which combination of hours, minutes, and seconds are displayed. You can set and retrieve the mode value through the ``DurationPickerView/mode`` property.
+  public typealias Components = DurationPicker.Mode
+
+  @Binding private var duration: TimeInterval
+
+  private var mode: Components
+
+  private var hourInterval: Int
+  private var minuteInterval: Int
+  private var secondInterval: Int
+  private var minumumDuration: TimeInterval?
+  private var maximumDuration: TimeInterval?
+
+  // This has to be public to comply with UIViewRepresentable, but we don't actually want it to show up in the doc.
+  @_documentation(visibility: internal)
+  public func makeUIView(context: Context) -> DurationPicker {
+    let timeDurationPicker = DurationPicker()
+
+    timeDurationPicker.pickerMode = mode
+    timeDurationPicker.hourInterval = hourInterval
+    timeDurationPicker.minuteInterval = minuteInterval
+    timeDurationPicker.secondInterval = secondInterval
+    timeDurationPicker.minimumDuration = minumumDuration
+    timeDurationPicker.maximumDuration = maximumDuration
+
+    timeDurationPicker.addTarget(context.coordinator, action: #selector(Coordinator.changed(_:)), for: .primaryActionTriggered)
+    return timeDurationPicker
+  }
+
+  // This has to be public to comply with UIViewRepresentable, but we don't actually want it to show up in the doc.
+  @_documentation(visibility: internal)
+  public func updateUIView(_ uiView: DurationPicker, context: Context) {
+    if (uiView.duration != duration) {
+      uiView.duration = duration
+    }
+    if (uiView.pickerMode != mode) {
+      uiView.pickerMode = mode
+    }
+    if (uiView.hourInterval != hourInterval) {
+      uiView.hourInterval = hourInterval
+    }
+    if (uiView.minuteInterval != minuteInterval) {
+      uiView.minuteInterval = minuteInterval
+    }
+    if (uiView.secondInterval != secondInterval) {
+      uiView.secondInterval = secondInterval
+    }
+    if (uiView.minimumDuration != minumumDuration) {
+      uiView.minimumDuration = minumumDuration
+    }
+    if (uiView.maximumDuration != maximumDuration) {
+      uiView.maximumDuration = maximumDuration
+    }
+  }
+
+  // This has to be public to comply with UIViewRepresentable, but we don't actually want it to show up in the doc.
+  @_documentation(visibility: internal)
+  public func makeCoordinator() -> DurationPickerView.Coordinator {
+    return Coordinator(duration: $duration)
+  }
+
+  // This has to be public to comply with UIViewRepresentable, but we don't actually want it to show up in the doc.
+  @_documentation(visibility: internal)
+  public class Coordinator: NSObject {
+    private var duration: Binding<TimeInterval>
+
+    init(duration: Binding<TimeInterval>) {
+      self.duration = duration
+    }
+
+    @objc func changed(_ sender: DurationPicker) {
+      self.duration.wrappedValue = sender.duration
+    }
+  }
+}
+
+@available(iOS 17.0,*)
+#Preview {
+  @Previewable @State var duration: TimeInterval = 60.0 * 30.0
+  @Previewable @State var components: DurationPickerView.Components = .hourMinuteSecond
+  @Previewable @State var minimumDuration: TimeInterval? = nil
+  @Previewable @State var maximumDuration: TimeInterval? = nil
+  @Previewable @State var hourInterval: Int = 1
+  @Previewable @State var minuteInterval: Int = 1
+  @Previewable @State var secondInterval: Int = 1
+
+  // Can't make it case iterable since its defined as an extension.
+  let modes: [DurationPickerView.Components] = [.hour, .hourMinute, .hourMinuteSecond, .minute, .minuteSecond, .second]
+
+  List {
+    DurationPickerView(
+      $duration,
+      components: components,
+      hourInterval: hourInterval,
+      minuteInterval: minuteInterval,
+      secondInterval: secondInterval,
+      minumumDuration: minimumDuration,
+      maximumDuration: maximumDuration
+    )
+
+    LabeledContent {
+      Text(Date()..<Date().addingTimeInterval(duration), format: .timeDuration)
+    } label: {
+      Text("Value")
+    }
+
+    Picker("Components", selection: $components) {
+      ForEach(modes, id: \.self) { mode in
+        Text(String(describing: mode))
+      }
+    }
+
+    LabeledContent {
+      TextField("Seconds", value: $minimumDuration, format: .number)
+    } label: {
+      Text("Minimum Duration")
+    }
+
+    LabeledContent {
+      TextField("Seconds", value: $maximumDuration, format: .number)
+    } label: {
+      Text("Maximum Duration")
+    }
+
+    LabeledContent {
+      TextField("Hour Interval", value: $hourInterval, format: .number)
+    } label: {
+      Text("Hour Interval")
+    }
+
+    LabeledContent {
+      TextField("Seconds", value: $minuteInterval, format: .number)
+    } label: {
+      Text("Minute Interval")
+    }
+
+    LabeledContent {
+      TextField("Seconds", value: $secondInterval, format: .number)
+    } label: {
+      Text("Second Interval")
+    }
+  }
+}