小编use*_*877的帖子

我有这个 .XAML 页面并且 Scroll 不起作用当我删除 AbsoluteLayout 并采用 stacklayout 时它工作正常。

<ScrollView>
    <AbsoluteLayout>
        <ListView x:Name="lstView" ItemsSource="{Binding Items}" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="0,0,1,1"
       ItemSelected="lstView_ItemSelected">

            <ListView.Header>
                <Label Text="Store Allocation" BackgroundColor="White" TextColor="Black" FontAttributes="Bold" HorizontalOptions="Fill" HorizontalTextAlignment="Center"  />

            </ListView.Header>
            <ListView.ItemTemplate>
                <DataTemplate>
                    <TextCell Text="{Binding Title}"  Height="200" Detail="{Binding Detail}" DetailColor="Black" TextColor="Red"  />
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
        <BoxView AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="0,0,1,1" BackgroundColor="LightGray" Opacity="0.7" InputTransparent="False" IsVisible="{Binding Path=IsBusy, Source={x:Reference Page}}" />
        <ActivityIndicator IsRunning="{Binding Path=IsBusy, Source={x:Reference Page}}" AbsoluteLayout.LayoutFlags="PositionProportional" AbsoluteLayout.LayoutBounds=".5,.5,-1,-1" />
    </AbsoluteLayout>
</ScrollView>

选择任何列表视图时如何使用叠加活动指示器.

<ListView x:Name="lstView" ItemsSource="{Binding Items}"
        ItemTapped="Handle_ItemTapped"

        ItemSelected="Handle_ItemSelected">
     <ListView.Header>
         <Label Text="Store Allocation" BackgroundColor="White" TextColor="Black" FontAttributes="Bold" HorizontalOptions="Fill" HorizontalTextAlignment="Center" />

     </ListView.Header>
     <ListView.ItemTemplate>
         <DataTemplate>
             <TextCell Text="{Binding Title}"  Height="200" Detail="{Binding Detail}" DetailColor="Black" TextColor="Red"  />
        </DataTemplate>
    </ListView.ItemTemplate>

</ListView>