Xamarin Forms EventToCommandBehavior

다음 위치에있는 EventToCommandBehavior에 대한 예제를 따르려고했습니다.

https://developer.xamarin.com/guides/xamarin-forms/application-fundamentals/behaviors/reusable/event-to-command-behavior/

이 예제는 목록보기의 항목에 대해 실행되는 selectedItem 이벤트를 보여줍니다. 내 희망은 내 목록보기의 모든 항목에 대해 Switch 이벤트를 발생시키는 것입니다.

EventName을 "ItemsSelected"에서 "Toggled"(스위치에 대한 이벤트)로 변경했는지 확인했지만 이벤트가 전혀 발생하지 않았습니다. 내가 뭘 잘못하고 있니?

FWIW, MVVM 패턴을 따르고 "코드 뒤"를 최소화하려고합니다.

GaragePage.xaml

  <ContentPage.Resources>
    <ResourceDictionary>
        <converters:ToggledItemEventArgsConverter x:Key="ToggledConverter" />
    </ResourceDictionary>
</ContentPage.Resources>

                  <ListView x:Name="listView" VerticalOptions="StartAndExpand" HasUnevenRows="true" ItemsSource="{Binding Previews}" HeightRequest="800" SeparatorVisibility="None"
                                    behaviors:ListViewBehavior.NoBackgroundSelection="True">
                            <ListView.ItemTemplate>
                                <DataTemplate>
                                    <ViewCell>
                                        <cardView:CardView Margin="40,15,40,15" HeightRequest="200"  CardViewOutlineColor="{StaticResource Primary}" Padding="5" CardViewOutlineColorThickness="1" CardViewHasShadow="True">
                                            <cardView:CardView.CardViewContent>
                                                <StackLayout Orientation="Vertical"  BackgroundColor="White" >
                                                    <StackLayout VerticalOptions="CenterAndExpand" >
                                                        <StackLayout Grid.Row="0" Grid.Column="0"  >
                                                            <StackLayout   HorizontalOptions="Center">
                                                                <Label Text="Enable Mobile Alert" FontSize="Small" TextColor="{StaticResource LightTextColor}"/>
                                                                <Switch IsToggled="{Binding PushNotification}" HorizontalOptions="Center">
                                                                    <Switch.Behaviors>
                                                                        <behaviors:EventToCommandBehavior EventName="Toggled" Command="{Binding ToggleAlertCommand}" Converter="{StaticResource ToggledConverter}" />
                                                                    </Switch.Behaviors>
                                                                </Switch>
                                                            </StackLayout>
                                                        </StackLayout>
                                                    </StackLayout>
                                                </StackLayout>
                                            </cardView:CardView.CardViewContent>
                                        </cardView:CardView>
                                    </ViewCell>
                                </DataTemplate>
                            </ListView.ItemTemplate>
                        </ListView>

GaragePageViewModel.cs

public ICommand ToggleAlertCommand { get; private set; }

public GaragePageViewModel()
    {
        ToggleAlertCommand = new Command<Vehicle>(ToggleMobileAlert);
    }

private async Task ToggleMobileAlert(GarageVehicle vehicle)
    {
       //do work
    }

ToggledItemEventArgsConverter.cs

public class ToggledItemEventArgsConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        var eventArgs = value as ToggledEventArgs;
        return eventArgs.Value;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

GaragePage.xaml.cs

   public GaragePage()
        {
            InitializeComponent();
            BindingContext = App.Container.Resolve<GaragePageViewModel>();
        }