我有一个简单的NavigationView，它的navigationBarLeading上有一个返回按钮。对于.principal内容，它将具有非常大的文本。我希望文本只需要一行，并无限水平滚动（类似于Instagram为歌曲做的，当他们需要超过设备宽度）。
基于这个gist，我已经能够创建一个无限滚动的组件。但是，过渡将从一条边转到另一条边，这与工具栏项重叠。如何更新它，使起点和终点（trailing和leading）实际上考虑后退按钮两侧的填充？

struct InfiniteLabel: View {
    let text: String
    
    @State private var go = false
    
    private let transition = AnyTransition.asymmetric(insertion: .move(edge: .trailing), removal: .move(edge: .leading))
    private let alignment = Alignment(horizontal: .myLeading, vertical: .center)
    
    @State private var reset = false
    
    var body: some View {
        Text(textContent)
            .fixedSize()
            .padding(.horizontal, 4)
            .animation(nil, value: go)
            .id(go)
            .transition(transition)
            .onAppear {
                go.toggle()
            }
            .animation(.linear(duration: animationDuration).repeatForever(autoreverses: false), value: go)
            .frame(alignment: alignment)
            .id(reset)
            .onReceive(NotificationCenter.default.publisher(for: UIDevice.orientationDidChangeNotification)) { _ in
                reset.toggle()
            }
    }
    
    private var textContent: String {
        var result = text
        while result.count < 75 {
            result += " \(text)"
        }
        return result
    }
    
    private var animationDuration: Double {
        Double(textContent.count) / 7.0
    }
}

extension HorizontalAlignment {
   private enum MyLeadingAlignment: AlignmentID {
      static func defaultValue(in dimensions: ViewDimensions) -> CGFloat {
         return dimensions[HorizontalAlignment.leading]
      }
   }
   static let myLeading = HorizontalAlignment(MyLeadingAlignment.self)
}