implementing back pressed about overlay_support HOT 9 CLOSED

showOverlay((context, t) {
  // ignore: missing_return
  return Container(
    color: Color.lerp(Colors.transparent, Colors.black54, t),
    child: FractionalTranslation(
      translation: Offset.lerp(const Offset(0, -1), const Offset(0, 0), t),
      child: Column(
        children: <Widget>[
          DirectMessageNotification(
            message: "xxxxxxxxxxx",
            onReplay: () {
              OverlaySupportEntry.of(context).dismiss();
            },
            key: ModalKey(const Object()),
          ),
        ],
      ),
    ),
  );
}, duration: Duration.zero);



class DirectMessageNotification extends StatelessWidget {
  final VoidCallback onReplay;
  final String message;
  final bool enableBottomLayer;
  final bool enableHeaderLayer;

  const DirectMessageNotification({Key key, this.onReplay, @required this.message, this.enableBottomLayer, this.enableHeaderLayer}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    double notificationHeight = MediaQuery.of(context).size.height * 0.500;
    return SafeArea(
      child: WillPopScope(
        // ignore: missing_return
        onWillPop: () {
          if (onReplay != null) onReplay();
        },
        child: ,
      ),
    );
  }
}