Webview无法滚动

Question

我有这个Xamarin Forms页面：

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:TestApp1"
             x:Class="TestApp1.MainPage">
<ContentPage.Content>
  <StackLayout Orientation="Vertical">
    <WebView Source="http://www.google.de" HeightRequest="3000" WidthRequest="100"/>
  </StackLayout>
</ContentPage.Content>
</ContentPage>

当我打开我的应用时，在Google提示中输入任何内容，我无法在结果页面上滚动。我该如何启用它？

当我谷歌搜索“xamarin webview enable scrolling”时，我只找到有关禁用它的信息......

Answer 1

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="ButtonRendererDemo.WebViewPage">

  <ContentPage.Content>
    <StackLayout Orientation="Vertical" Padding="10" Spacing="10">
      <Button Text="Press me" HorizontalOptions="CenterAndExpand" VerticalOptions="Center" BackgroundColor="Green"/>        
      <WebView Source="http://www.google.de" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" />
    </StackLayout>
  </ContentPage.Content>    
</ContentPage>

Answer 2

创建自己的渲染器，并按如下所示重写此方法：

public override bool DispatchTouchEvent(MotionEvent e)
{
    Parent.RequestDisallowInterceptTouchEvent(true);
    return base.DispatchTouchEvent(e);
}

Please find details in this link