Prompt Title: Advertising packets

To read advertising packets using the flutter_reactive_ble package in Flutter, you can use the scanForDevicesWithServices method provided by the package. Here's an example of how to use this method to scan for devices and receive their advertising data:

dartCopy code
import 'package:flutter_reactive_ble/flutter_reactive_ble.dart';

// Create a ReactiveBle instance
final ble = FlutterReactiveBle();

// Define a list of UUIDs to scan for
final serviceUuids = <Guid>[Guid('0000180f-0000-1000-8000-00805f9b34fb')];

// Start scanning for devices with the specified UUIDs
StreamSubscription<ScanResult> scanSubscription;
scanSubscription = ble.scanForDevicesWithServices(serviceUuids).listen((scanResult) {
  // Process the scan result and receive the advertising data
  final advertisementData = scanResult.advertisementData;
  final manufacturerData = advertisementData.manufacturerData;
  final serviceData = advertisementData.serviceData;

  // Do something with the advertising data
  // ...
});

// Stop scanning after a certain amount of time
Future<void> stopScanning() async {
  await Future.delayed(Duration(seconds: 10));
  await scanSubscription.cancel();
  await ble.stopScan();
}

In this example, we create a ReactiveBle instance, define a list of UUIDs to scan for, and use the scanForDevicesWithServices method to start scanning for devices with the specified UUIDs. We then process the scan results and receive the advertising data using the advertisementData property of the ScanResult object.

The advertising data includes fields such as the device name, the manufacturer-specific data, and the service data, among others. You can access these fields using the properties of the AdvertisementData object.

Note that you may need to request permissions to access Bluetooth on the user's device before starting the scan. You can do this using the requestAccess method provided by the flutter_reactive_ble package.