我scrollview的結構xamarin ios

Question

我有以下結構，我想在我的ios應用程序中放置一個scrollView，當我將Scrowview放置在這個結構中時，我的數據全部消失。如何使我的滾動視圖工作正確的結構？

  <?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:controls="clr-namespace:g.Portable.Helpers;assembly=g.Portable" 
     x:Class="g.Portable.Views.AboutPage" 
     xmlns:cv="clr-namespace:Xamarin.Forms;assembly=Xamarin.Forms.CarouselView" 
     Title="titulo"> 

<AbsoluteLayout VerticalOptions="FillAndExpand"> 
<ScrollView HeightRequest="1000"> 

    <cv:CarouselView x:Name="MAinCarousel" VerticalOptions="Start" HeightRequest="250"> 
      <cv:CarouselView.ItemTemplate> 
       <DataTemplate> 
        <Grid> 
       <Grid.RowDefinitions> 
       <RowDefinition Height="*"/> 
       <RowDefinition Height="Auto"/> 
       </Grid.RowDefinitions> 
       <Image x:Name="Image" Grid.RowSpan="2" Source="{Binding img}" Scale="1.0" Aspect="AspectFill" VerticalOptions="FillAndExpand" HeightRequest="250"/> 
       <StackLayout Grid.Row="1" BackgroundColor="#80000000" Padding="5"> 
        <Label TextColor="White" Text="{Binding category}" BackgroundColor="{Binding category_color}" Font="Bold" FontSize="16" HorizontalOptions="Start" VerticalOptions="CenterAndExpand"/> 
        <Label TextColor="White" Text="{Binding data}" FontSize="16" HorizontalOptions="Start" VerticalOptions="CenterAndExpand"/> 
        <Label TextColor="White" Text="{Binding titulo}" FontSize="18" HorizontalOptions="Start" Font="Bold" VerticalOptions="CenterAndExpand"/> 
        <Button Text="Clique aqui..." IsVisible="true" HeightRequest="16" Clicked="Handle_Clicked" TextColor="White" BackgroundColor="#1C86EE"/> 
       </StackLayout> 
      </Grid> 
       </DataTemplate> 
      </cv:CarouselView.ItemTemplate> 
    </cv:CarouselView> 

     <StackLayout BackgroundColor="#234084"> 
     <Label Text=" Últimas " TextColor="White" Font="Bold" FontSize="16" BackgroundColor="#234084"/> 
     </StackLayout> 

     <ListView x:Name="listView" 
      CachingStrategy="RecycleElement" 
      ItemsSource="{Binding FeedItems}" 
      HasUnevenRows="True" 
     AbsoluteLayout.LayoutFlags="All" 
     AbsoluteLayout.LayoutBounds="0,0,1,1" HeightRequest="344" VerticalOptions="Fill"> 
      <ListView.ItemTemplate> 
       <DataTemplate> 
        <ViewCell> 
         <Grid Padding="5"> 
          <Grid.ColumnDefinitions> 
           <ColumnDefinition Width="70"/> 
           <ColumnDefinition Width="5"/> 
           <ColumnDefinition Width="*"/> 
          </Grid.ColumnDefinitions> 
          <StackLayout HeightRequest = "60" WidthRequest="60"> 
           <Image x:Name="Image" Source="{Binding Image}" Scale="1.0" Aspect="AspectFill" VerticalOptions="FillAndExpand"/> 
         </StackLayout> 
          <StackLayout Grid.Column="2" Spacing="4" VerticalOptions="Center"> 
           <Label Text="{Binding Category}" TextColor="White" FontSize="Small" LineBreakMode="NoWrap" BackgroundColor="{Binding Color_category}"/> 
           <Label Text="{Binding PublishDate}" TextColor="#666666" FontSize="Small" LineBreakMode="NoWrap"/> 
           <Label Text="{Binding Title}" TextColor="#234084" Font="Bold" FontSize="Small" LineBreakMode="WordWrap"/> 
          </StackLayout> 
         </Grid> 
        </ViewCell> 
       </DataTemplate> 
      </ListView.ItemTemplate> 
     </ListView> 
     </ScrollView> 
<StackLayout IsVisible="{Binding IsBusy}" BackgroundColor="#80000000" Padding="12" 
           AbsoluteLayout.LayoutFlags="PositionProportional" 
           AbsoluteLayout.LayoutBounds="0.5,0.5,-1,-1"> 
     <ActivityIndicator IsRunning="{Binding IsBusy}" Color ="White"> 
     </ActivityIndicator> 
     <Label Text="Carregando..." HorizontalOptions="Center" TextColor="White"/> 

    </StackLayout> 

</AbsoluteLayout> 

Answer 1

你必須滾動型多生幾個孩子。這是行不通的。滾動型只能有一個直接子