如何在WebView中设置页面滚动位置?
通过在页面上添加JavaScript,我得到X和Y坐标:

window.onscroll = scroll;
function scroll () {"
window.external.notify(window.pageXOffset + \",\" + window.pageYOffset)"
}


并将X和y保存在array中:

private void WebView_OnScriptNotify(object sender, NotifyEventArgs e)
        {
            string[] valuePair = e.Value.Split(',');
            XY[0] = int.Parse(valuePair[0]);
            XY[1] = int.Parse(valuePair[1]);
        }


但是,当我加载页面并想要恢复滚动位置时,如何在WebView中滚动页面?

最佳答案

您大部分都在那儿。离开页面时需要保存当前位置,然后在返回页面时导航回该位置。尝试这个:

在MainPage.xaml.cs中:

    static Point ScrollPosition = new Point();

    private void MyWebView_ScriptNotify(object sender, NotifyEventArgs e)
    {
        string[] Coordinates = e.Value.Split(',');
        ScrollPosition.X = double.Parse(Coordinates[0]);
        ScrollPosition.Y = double.Parse(Coordinates[1]);
    }

    private async void MyWebView_NavigationCompleted(WebView sender, WebViewNavigationCompletedEventArgs args)
    {
        await MyWebView.InvokeScriptAsync("SetScrollPosition", new string[] { ScrollPosition.X.ToString(), ScrollPosition.Y.ToString() });
    }


在MainPage.xaml中:

  <WebView x:Name="MyWebView" Width="800" Height="500" Source="ms-appx-web:///HTMLPage1.html" ScriptNotify="MyWebView_ScriptNotify" NavigationCompleted="MyWebView_NavigationCompleted"/>


在HTMLPage1.html中:

  window.onscroll = GetScrollPosition;

    function GetScrollPosition() {
        window.external.notify(window.pageXOffset + "," + window.pageYOffset);
    }

    function SetScrollPosition(X, Y) {
        window.scrollTo(X, Y);
        window.external.notify(window.pageXOffset + "," + window.pageYOffset);
    }

关于javascript - WebView滚动内容,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/26341372/

10-10 17:55
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