Xamarin ios自定义WkWebViewRenderer滚动事件

using Xamarin.Forms.Platform.iOS;
using Xamarin.Forms;
using UIKit;
using WebKit;
using YourNamespace.iOS;

[assembly: ExportRenderer(typeof(YourWebView), typeof(YourWebViewRenderer))]
namespace YourNamespace.iOS
{
    public class YourWebViewRenderer : WkWebViewRenderer
    {
        protected override void OnElementChanged(VisualElementChangedEventArgs e)
        {
            base.OnElementChanged(e);

            if (NativeView != null)
            {
                var scrollView = NativeView.Subviews.FirstOrDefault(v => v is UIScrollView) as UIScrollView;
                if (scrollView != null)
                {
                    scrollView.Scrolled += ScrollView_Scrolled;
                }
            }
        }

        private void ScrollView_Scrolled(object sender, EventArgs e)
        {
            // 在这里处理滚动事件
        }
    }
}