startScan method

@override Stream<BleScanResult> startScan({ List<Uuid>? withServices, })

Streams advertisement sightings, optionally filtered to withServices. Cancelling the subscription (or stopScan) stops the scan.

Implementation

@override
Stream<BleScanResult> startScan({List<Uuid>? withServices}) {
  late StreamController<BleScanResult> controller;
  controller = StreamController<BleScanResult>.broadcast(
    onListen: () {
      scanStarted = true;
      for (final r in scanResults) {
        if (withServices == null ||
            withServices.any(r.serviceUuids.contains)) {
          controller.add(r);
        }
      }
      if (scanError != null) controller.addError(scanError!);
    },
    onCancel: () => scanStopped = true,
  );
  return controller.stream;
}