CBCentralManager ScanForPeripherals with empty CBPeripheral name

Question

I need to solve this issue with my app. I try to scan the peripherals (Bluetooth devices) using the CBCentralManager from the CoreBluetooth in Xamarin.iOS, but when a peripheral is discovered it has an empty name sometimes, when I do the same from the iOS settings then it has a name. I'm not searching for a specific UUID.

CBCentralManager  manager = new CBCentralManager(CoreFoundation.DispatchQueue.MainQueue);

manager.DiscoveredPeripheral += (sender, e) =>
{
    if (e.Peripheral != null)
    {
        Debug.WriteLine($"DiscoveredPeripheral: {e.Peripheral.Name} - {e.Peripheral.Identifier} - {e.AdvertisementData}");

        PeripheralsList.Add(e.Peripheral);
        CustomDeviceDiscoveredAction(this, new CustomBTEDevice
        {
            DeviceName = e.Peripheral.Name,
            DeviceAddress = e.Peripheral.Identifier.AsString(),
            DeviceGuid = Guid.Parse(e.Peripheral.Identifier.AsString())
        });
    }
};
manager.ScanForPeripherals(null, new PeripheralScanningOptions
{
    AllowDuplicatesKey = false,
});

Because it's updating piece by piece (chunks of data), so it can be seen multiples times, each times with more info (including the name)? — Larme

Yauhen Sampir Yauhen Sampir · Accepted Answer · 2019-06-07T07:31:33

Check property LocalName in the advertisement data package Also, my suggestions, do not rely on the device name, better rely on data in advertisement data

CBCentralManager ScanForPeripherals with empty CBPeripheral name

1 Answers