如何查看滚动视图内容是否已到达SwiftUI中的内容末尾

@State private var scrollViewOffset: CGFloat = 0

ScrollView {
    VStack {
        // 内容视图
    }
    .background(
        GeometryReader { geometry in
            Color.clear
                .preference(key: ViewOffsetKey.self, value: geometry.frame(in: .named("scrollView")).maxY)
        }
    )
}
.onPreferenceChange(ViewOffsetKey.self) { value in
    scrollViewContentSize = value
}

struct ViewOffsetKey: PreferenceKey {
    static var defaultValue: CGFloat = 0
    
    static func reduce(value: inout CGFloat, nextValue: () -> CGFloat) {
        value = nextValue()
    }
}

var body: some View {
    // ...
    if scrollViewOffset > 0 && scrollViewOffset >= scrollViewContentSize - scrollViewHeight {
        Text("已滚动到末尾")
    } else {
        Text("尚未滚动到末尾")
    }
    // ...
}