public partial class MainPage : ContentPage
{
    private CollectionView _collectionView;
    private Button _headerButton;
    private Button _footerButton;

	public MainPage()
	{
        //InitializeComponent();
		var grid = new Grid
        {
            Margin = new Thickness(20),
            RowDefinitions =
            {
                new RowDefinition { Height = GridLength.Auto },
                new RowDefinition { Height = GridLength.Auto },
                new RowDefinition { Height = GridLength.Star }
            }
        };



        // Header Label
        var headerLabel = new Label
		{
			Text = "Test for CollectionView empty view positioning",
			AutomationId = "HeaderLabel",
        };
        Grid.SetRow(headerLabel, 0);
        grid.Children.Add(headerLabel);

        // Control buttons
        var buttonGrid = new Grid
        {
            ColumnDefinitions =
            {
                new ColumnDefinition { Width = GridLength.Star },
                new ColumnDefinition { Width = GridLength.Star }
            },
            Margin = new Thickness(0, 10)
        };

        var toggleHeaderButton = new Button
        {
            AutomationId = "ToggleHeaderButton",
            Text = "Remove Header",
        };
        toggleHeaderButton.Clicked += OnToggleHeaderClicked;
        Grid.SetColumn(toggleHeaderButton, 0);
        buttonGrid.Children.Add(toggleHeaderButton);

        var toggleFooterButton = new Button
        {
            AutomationId = "ToggleFooterButton", 
            Text = "Remove Footer",
        };
        toggleFooterButton.Clicked += OnToggleFooterClicked;
        Grid.SetColumn(toggleFooterButton, 1);
        buttonGrid.Children.Add(toggleFooterButton);

        Grid.SetRow(buttonGrid, 1);
        grid.Children.Add(buttonGrid);

        // CollectionView
        _collectionView = new CollectionView
        {
			AutomationId = "CollectionView",
            ItemsSource = Array.Empty<string>(), // empty array to trigger EmptyView
            ItemTemplate = new DataTemplate(() =>
            {
                return new Label
                {
                    TextColor = Colors.Black,
                    FontSize = 16,
                    // This binding works with string items
                    BindingContext = "{Binding .}" 
                };
            })
        };

        // EmptyView
        _collectionView.EmptyView = new Label
        {
            AutomationId = "EmptyViewLabel",
            BackgroundColor = Color.FromArgb("#FFE40606"),
            Text = "EmptyView: This should show when no data.",
        };

        // Initial header
        _headerButton = new Button
        {
            AutomationId = "CollectionViewHeader",
            BackgroundColor = Colors.LightBlue,
            Text = "Header: Click me to verify EmptyView position",
        };
        _collectionView.Header = _headerButton;

        // Initial footer (null)
        _footerButton = new Button
        {
            AutomationId = "CollectionViewFooter",
            BackgroundColor = Colors.LightCoral,
            Text = "Footer: Click me to verify EmptyView position",
        };
        _collectionView.Footer = _footerButton

        Grid.SetRow(_collectionView, 2);
        grid.Children.Add(_collectionView);

        // Set ContentPage content
        Content = grid;
	}

    private void OnToggleHeaderClicked(object? sender, EventArgs e)
    {
        var button = (Button)sender!;
        
        if (_collectionView.Header != null)
        {
            _collectionView.Header = null;
            button.Text = "Add Header";
        }
        else
        {
            _collectionView.Header = _headerButton;
            button.Text = "Remove Header";
        }
    }

    private void OnToggleFooterClicked(object?  sender, EventArgs e)
    {
        var button = (Button)sender!;
        
        if (_collectionView.Footer != null)
        {
            _collectionView.Footer = null;
            button.Text = "Add Footer";
        }
        else
        {
            _collectionView.Footer = _footerButton;
            button.Text = "Remove Footer";
        }
    }
}