custom ScrollView for iOS 15+16

gistfile1.txt

struct CustomScrollView<Content: View>: View {
  // MARK: - Private properties
  private let axes: Axis.Set
  private let showIndicators: Bool
  private let isBouncesEnabled: Bool
  @ViewBuilder private var content: () -> Content

  // MARK: - Init
  init(
    axes: Axis.Set = .vertical,
    showIndicators: Bool = false,
    isBouncesEnabled: Bool = true,
    content: @escaping () -> Content
  ) {
    self.axes = axes
    self.showIndicators = showIndicators
    self.isBouncesEnabled = isBouncesEnabled
    self.content = content
  }

  // MARK: - View
  var body: some View {
    if #available(iOS 16.0, *) {
      newScrollView
    } else {
      oldScrollView
    }
  }

  private var oldScrollView: some View {
    ScrollView(axes, showsIndicators: showIndicators) {
      content()
    }
    .onAppear {
      guard !isBouncesEnabled else { return }
      UIScrollView.appearance().bounces = false
    }
    .onDisappear {
      UIScrollView.appearance().bounces = true
    }
  }

  @available(iOS 16.0, *)
  private var newScrollView: some View {
    ScrollView(axes) {
      content()
    }
    .scrollIndicators(showIndicators ? .visible : .hidden)
    .onAppear {
      guard !isBouncesEnabled else { return }
      UIScrollView.appearance().bounces = false
    }
    .onDisappear {
      UIScrollView.appearance().bounces = true
    }
  }
}