Anchored overlay new

If you want a widget (like a Grid/List item) to open a panel without changing layout, use FloatingMenuAnchoredOverlay.

• The panel is rendered in an Overlay and stays anchored to the child.
• If you want the visual effect of "the item expands", set expandFromAnchor: true.
• The rest of the UI is dimmed/blurred using a barrier.
• When closeOnScroll: true, a scroll/pan gesture on the barrier will close the overlay.

final anchoredController = FloatingMenuAnchoredOverlayController();

FloatingMenuAnchoredOverlay(
	controller: anchoredController,
	expandFromAnchor: true,
	closeOnScroll: true,
	panelBuilder: (context) {
		return Material(
			color: Colors.white,
			borderRadius: const BorderRadius.all(Radius.circular(16)),
			child: SizedBox(
				width: 220,
				child: Padding(
					padding: const EdgeInsets.all(12),
					child: Column(
						mainAxisSize: MainAxisSize.min,
						crossAxisAlignment: CrossAxisAlignment.start,
						children: [
							const Text('Actions'),
							const SizedBox(height: 8),
							TextButton(
								onPressed: anchoredController.close,
								child: const Text('Close'),
							),
						],
					),
				),
			),
		);
	},
	child: GestureDetector(
		onTap: anchoredController.toggle,
		child: const Card(child: SizedBox(height: 120)),
	),
)