PopoverController class

A controller for managing multiple popovers and their lifecycle.

PopoverController provides centralized management for popover instances, including creation, lifecycle tracking, and coordination between multiple popovers. It handles the complexity of overlay management and provides a clean API for popover operations.

Key responsibilities:

• Creating and showing new popovers
• Tracking active popover instances
• Coordinating close operations across popovers
• Managing popover lifecycle states
• Providing status queries for open/mounted popovers

The controller maintains a list of active popovers and provides methods to query their status, close them individually or collectively, and coordinate their display behavior.

Example:

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  final PopoverController _popoverController = PopoverController();

  @override
  void dispose() {
    _popoverController.dispose();
    super.dispose();
  }

  void _showMenu() async {
    await _popoverController.show(
      context: context,
      alignment: Alignment.bottomStart,
      builder: (context) => MyPopoverContent(),
    );
  }
}