private async void postView_OnNavigationStarting(WebView sender, WebViewNavigationStartingEventArgs args)
        {
            var url = args.Uri.ToString();

            if (url.Contains("story"))
            {
                ProductEntities.Where(c => c.Id == currentPid).First().ProValue = 100;

                if (_productList.Count > 0)
                {
                    args.Cancel = true;

                    var itemd    = _productList.Dequeue();
                    var firstpro = itemd.ProductUrl;

                    var urls = firstpro.TrimEnd('/').Split('/');
                    var rid  = urls[urls.Length - 1];
                    currentPid = itemd.Id;

                    await Task.Delay(1000);

                    var postView = WebEnginner.CreateInstance("postReq");

                    postView.NavigationStarting -= postView_OnNavigationStarting;
                    postView.LoadCompleted      -= postView_OnLoadCompleted;

                    postView.NavigationStarting += postView_OnNavigationStarting;
                    postView.LoadCompleted      += postView_OnLoadCompleted;
                    postView.Navigate(new Uri(string.Format("https://m.facebook.com/sharer.php?fs=0&sid={0}&pid={1}", rid, currentPid)));
                }
            }
        }
        private async void postView_OnLoadCompleted(object sender, NavigationEventArgs e)
        {
            if (e.Uri.ToString().Contains("sharer"))
            {
                string script = @"function run(){document.getElementById('share_submit').click(); setTimeout(run,500);} run();";
                await WebEnginner.GetWebView("postReq").InvokeScriptAsync("eval", new string[] { script });

                ProductEntities.Where(c => c.Id == currentPid).First().ProValue = 70;
            }
        }
        private async void next()
        {
            if (_groupList.Count <= 0 && _productList.Count <= 0)
            {
                return;
            }

            await Task.Delay(5000);

            PostProValue++;

            if (_productList.Count > 0)
            {
                var itemd    = _productList.Dequeue();
                var firstpro = itemd.ProductUrl;

                var urls = firstpro.TrimEnd('/').Split('/');
                var rid  = urls[urls.Length - 1];
                currentPid      = itemd.Id;
                itemd.ProValue  = 10;
                CurrentPostInfo = string.Format("当前推送小组为:{0},商品为:{1}", currentGroupItem.Name, itemd.ProductName);
                var postView = WebEnginner.CreateInstance("postReqg");

                postView.NavigationStarting -= postView_OnNavigationStarting;
                postView.LoadCompleted      -= postView_OnLoadCompleted;

                postView.NavigationStarting += postView_OnNavigationStarting;
                postView.LoadCompleted      += postView_OnLoadCompleted;
                postView.Navigate(new Uri(string.Format("https://m.facebook.com/sharer.php?m=group&group_target=0&u&id&ids&sid={0}&usedialogwithselector=1&_rdr", rid)));
            }
            else
            {
                currentGroupItem = _groupList.Dequeue();

                ProductEntities.ToList().ForEach(item => _productList.Enqueue(item));

                var itemd    = _productList.Dequeue();
                var firstpro = itemd.ProductUrl;

                var urls = firstpro.TrimEnd('/').Split('/');
                var rid  = urls[urls.Length - 1];
                currentPid      = itemd.Id;
                itemd.ProValue  = 10;
                CurrentPostInfo = string.Format("当前推送小组为:{0},商品为:{1}", currentGroupItem.Name, itemd.ProductName);
                var postView = WebEnginner.CreateInstance("postReqg");

                postView.NavigationStarting -= postView_OnNavigationStarting;
                postView.LoadCompleted      -= postView_OnLoadCompleted;

                postView.NavigationStarting += postView_OnNavigationStarting;
                postView.LoadCompleted      += postView_OnLoadCompleted;
                postView.Navigate(new Uri(string.Format("https://m.facebook.com/sharer.php?m=group&group_target=0&u&id&ids&sid={0}&usedialogwithselector=1&_rdr", rid)));
            }
        }