Question

我有以下xaml

      <StackLayout Orientation="Vertical"  VerticalOptions="EndAndExpand" HorizontalOptions="FillAndExpand" Margin="0,0,0,0">
        <Label Text="Menu" />

        <ListView x:Name="lvMenu" ItemSelected="lvMenu_ItemSelected">
          <ListView.ItemTemplate>
            <DataTemplate>
              <ImageCell ImageSource="{Binding ImageSource}" Text="{Binding TitleText}" />
            </DataTemplate>
          </ListView.ItemTemplate>
        </ListView>
      </StackLayout>

以下c＃填充它

    private void PopulateMenu()
    {
        var menu = new List<SettingItem>()
        {
            new SettingItem() { ImageSource="icon.png", TitleText="Show All Jobs", TargetPageType = typeof(JobListPage)  },
            new SettingItem() { ImageSource="opportunities.png", TitleText="Sync Tasks", TargetPageType = typeof(SyncPage)  },
            new SettingItem() { ImageSource="leads.png", TitleText="Advanced Settings", TargetPageType = typeof(SettingsPage)  },
            new SettingItem() { ImageSource="contacts.png", TitleText="About ", TargetPageType = typeof(AboutPage)  },
        };
        lvMenu.ItemsSource = menu;
    }

一切都很好但是当它显示时我得到了

 Menu
   Show All Jobs
   Sync Tasks
   Advanced Settings

和iOS模拟器上的7个空行

Answer 1

iOS上对ListView的默认行为是添加空行。

要解决此问题，您需要将ListView包装在StackPanel中，

或创建自定义渲染：

protected override void OnElementChanged(ElementChangedEventArgs<ListView> e)
{
     base.OnElementChanged(e);

     if (this.Control == null) return;

     this.Control.TableFooterView = new UIView();
}

来源：Xamarin

Stacklayout中的Xamarin Listview在iOS上显示不正确

1 个答案: