下面的代码运行得非常好,除了<ViewCell.ContextActions>在运行程序时在前一页中显示了toolbaritem(沿着中的所有内容)。我试过用菜单项来代替,但它们似乎也会显示在另一个页面上。
<ContentPage.Resources>
<ResourceDictionary>
<toolkit:SelectedItemEventArgsConverter x:Key="SelectedItemEventArgsConverter"/>
</ResourceDictionary>
</ContentPage.Resources>
<ContentPage.ToolbarItems>
<ToolbarItem Text="Add" Command="{Binding AddCommand}"/>
<ToolbarItem Text="Back" x:Name="ReturnToHomePageButton" Clicked="ReturnToHomePageButton_Clicked"/>
</ContentPage.ToolbarItems>
<VerticalStackLayout>
<ListView
BackgroundColor="Transparent"
CachingStrategy="RecycleElement"
HasUnevenRows="True"
IsPullToRefreshEnabled="True"
IsRefreshing="{Binding IsBusy, Mode=OneWay}"
ItemsSource="{Binding Review}"
RefreshCommand="{Binding RefreshCommand}"
RefreshControlColor="Red"
SelectionMode="None"
SeparatorVisibility="None">
<ListView.ItemTemplate>
<DataTemplate x:DataType="model:Review">
<ViewCell>
<ViewCell.ContextActions>
<ToolbarItem
Command="{Binding Source={x:Reference ReviewPage}, Path=BindingContext.RemoveCommand}"
CommandParameter="{Binding .}"
IsDestructive="True"
Text="Delete" />
</ViewCell.ContextActions>
<Grid Padding="10">
<Frame CornerRadius="20" HasShadow="True">
<StackLayout Orientation="Horizontal">
<StackLayout VerticalOptions="Center">
<Label
FontSize="Large"
Text="{Binding Username}"
VerticalOptions="Center"/>
<controls:SimpleRatingControl
Amount="5"
CurrentValue="{Binding Stars}"
AccentColor="Yellow"
StarSize="36"
VerticalOptions="End" />
<Label
FontSize="Small"
Text="{Binding Text}"
VerticalOptions="Center"/>
</StackLayout>
</StackLayout>
</Frame>
</Grid>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</VerticalStackLayout>
”
该项目有两个视图/页面,主页面和信息页面。infopage在listview中显示了几个评论(如上面的代码所示),但是当长时间单击这些评论以显示contextactions下的toolbaritem时,toolbaritem显示在主页中而不是infopage中。
信息页与示例审查x1c 0d1x
长时间点击评论后的主页
长时间点击评论后的信息页(没有任何变化)
1条答案
按热度按时间iklwldmw1#
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