open method

Future<void> open(
  1. BuildContext context
)

Implementation

Future<void> open(BuildContext context) async {
  if (completer?.isCompleted == false) return;

  completer = Completer();

  overlayEntry = getOverlayEntry(context);

  Overlay.of(context).insert(overlayEntry!);

  //add screen size change listener
  WidgetsBinding.instance
      .addObserver(CustomWidgetsBindingObserver(overlayEntry!));

  await completer?.future;
}