如何在Xamarin Forms应用程序中仅激活1个ListView项目而禁用其他项目(安卓)

<ListView x:Name="myListView" ItemsSource="{Binding Items}">
    <ListView.ItemTemplate>
        <DataTemplate>
            <!-- 定义ListView项目的外观 -->
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>

private void ActivateOnlyOneItem(object selectedItem)
{
    foreach (var item in myListView.ItemsSource)
    {
        var listViewItem = myListView.ItemTemplate.CreateContent() as ViewCell;
        if (item == selectedItem)
        {
            listViewItem.IsEnabled = true;
        }
        else
        {
            listViewItem.IsEnabled = false;
        }
    }
}

private void OnItemSelected(object sender, SelectedItemChangedEventArgs e)
{
    var selectedItem = e.SelectedItem;
    ActivateOnlyOneItem(selectedItem);
}