Not able to receive message from flutter_background_service about flutter_overlay_window

[M-ImranNawaz]

Hi @ugirishm you need to use shareData method to share data from variables to overlay and to get data on overlay you need to use overlayListener so that you can listen to the data and get it and update data on the overlay. I hope you'll find this helpfull.

share data example:

if (!(await FlutterOverlayWindow.isPermissionGranted())) return;
if (await FlutterOverlayWindow.isActive()) return;

await FlutterOverlayWindow.showOverlay(
enableDrag: true,
flag: OverlayFlag.defaultFlag,
visibility: NotificationVisibility.visibilityPublic,
height: 300,
width: WindowSize.matchParent,
);
await Future.delayed(const Duration(milliseconds: 200));
await FlutterOverlayWindow.shareData('$order,$pNumber');

Listen Data Example:
String firstTitle = '';
String secTitle = '';

@OverRide
void initState() {
super.initState();
FlutterOverlayWindow.overlayListener.listen((event) {
log("$event");
setState(() {
// isGold = !isGold;
print('true call event $event');
if (event.toString().contains(',')) {
String data = event.toString();

      try {
        print('try to set data');
        firstTitle = data.split(',').first;
        secTitle = data.split(',')[1];
      } catch (e) {
        print('exception $e');
        firstTitle = '';
        secTitle = '';
      }
      print('after all result on overlay: $firstTitle     $secTitle');
    }
  });
});
setState(() {});
Future.delayed(const Duration(milliseconds: 400), () {
  setState(() {});
});

}

[Ngochiendev]

@M-ImranNawaz Thank you for the solution, I followed it and it worked

[YoavSl]

@M-ImranNawaz How to do the opposite direction? Share data from the overlay.
The above method doesn't work as the listen doesn't get any events.
Thanks