Xamarin Forms :如何在ViewModel中处理Listview Image Click事件？

<ListView ItemsSource="{Binding Items}">
    <ListView.ItemTemplate>
        <DataTemplate>
            <ViewCell>
                <StackLayout Orientation="Horizontal">
                    <Image Source="{Binding ImageSource}" WidthRequest="50" HeightRequest="50" />
                    <Label Text="{Binding Title}" />
                </StackLayout>
            </ViewCell>
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>

public class MyViewModel : INotifyPropertyChanged
{
    public ObservableCollection<MyItem> Items { get; set; }

    public MyViewModel()
    {
        Items = new ObservableCollection<MyItem>
        {
            new MyItem { ImageSource = "image1.png", Title = "Item 1" },
            new MyItem { ImageSource = "image2.png", Title = "Item 2" },
            // ...
        };
    }

    // ...
}

public class MyItem
{
    public string ImageSource { get; set; }
    public string Title { get; set; }
}

public class MyViewModel : INotifyPropertyChanged
{
    public ObservableCollection<MyItem> Items { get; set; }
    public ICommand HandleImageClickCommand { get; set; }

    public MyViewModel()
    {
        Items = new ObservableCollection<MyItem>
        {
            // ...
        };

        HandleImageClickCommand = new Command<MyItem>(HandleImageClick);
    }

    private void HandleImageClick(MyItem item)
    {
        // 处理Image点击事件的逻辑
    }

    // ...
}

<ListView ItemsSource="{Binding Items}" ItemTappedCommand="{Binding HandleImageClickCommand}" ItemTappedCommandParameter="{Binding .}">
    <!-- ... -->
</ListView>