小编Ati*_*han的帖子

I am using WKWebView to show a pdf file from a remote url. It was working fine in iOS 12 but in iOS 13 it just shows blank screen. I hit same domain with an image url and that worked fine but it has some issues with pdf files only.

let myURL = URL(string:"somefileurl.pdf") // If I hit this url in safari, It will download a pdf file.
let myRequest = URLRequest(url: myURL!)
webViewPdf.load(myRequest)  

我在我的应用程序中使用长列表选择器,我已经在其中创建了组和组头.现在,我在组头中添加一个按钮,并希望按钮打开新页面.但是,当我点击按钮时,它会导航到新页面并打开"跳转列表".单击按钮时我不想要跳转列表.我找到了这个链接,但是,这里没有明确的答案.

有没有办法在"组头"上禁用"点击"事件并在需要时调用？

我的代码是:

XAML:

 <DataTemplate x:Key="groupHeaderTemplate">
        <Border HorizontalAlignment="Stretch" Height="70"  Background="{Binding Converter={StaticResource BackgroundConverter}}" Margin="6">
            <Grid HorizontalAlignment="Stretch" Background="Transparent">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>

                <TextBlock Text="{Binding Title}"
                       FontSize="40" Padding="6"
                       VerticalAlignment="Center" 
                       Foreground="{Binding Converter={StaticResource ForegroundConverter}}" />
                <Button Content="addNew" Name="addNew_btn" Grid.Column="1"   Click="addNew_btn_Click_1" Tag="{Binding transType}" />

            </Grid>

        </Border>
    </DataTemplate>

CS:

private void addNew_btn_Click_1(object sender, RoutedEventArgs e)
    {

        NavigationService.Navigate(new Uri("/Expense.xaml", UriKind.Relative));

    }