如何在SwiftUI中限制滑块可以调整的距离？

@State private var sliderValue: Double = 0.5

var body: some View {
    Slider(value: $sliderValue, in: 0...1, step: 0.1)
}

@State private var sliderValue: Double = 0.5

var body: some View {
    Slider(value: $sliderValue, in: 0...1, step: 0.1)
        .onChange(of: sliderValue) { newValue in
            if newValue < 0.3 {
                sliderValue = 0.3
            } else if newValue > 0.7 {
                sliderValue = 0.7
            }
        }
}

struct ContentView: View {
    @State private var sliderValue: Double = 0.5
    @State private var sliderRange: ClosedRange<Double> = 0...1

    var body: some View {
        VStack {
            Slider(value: $sliderValue, in: sliderRange, step: 0.1)
                .onChange(of: sliderValue) { newValue in
                    if newValue < sliderRange.lowerBound {
                        sliderValue = sliderRange.lowerBound
                    } else if newValue > sliderRange.upperBound {
                        sliderValue = sliderRange.upperBound
                    }
                }
            
            Button("Update Range") {
                sliderRange = 0.2...0.8
            }
        }
    }
}