/// <summary>
/// Scan for devices that are not yet connected.
/// </summary>
/// <exception cref="System.Exception">Throws exception when trying to start scan when a scan is already running.</exception>
/// <param name="callback"></param>
/// <returns>Bool wheter scanning has started</returns>
public static bool StartScanning(Action <BLEScanResult> callback)
{
var uniqueGuids = new List <Guid>();
//Start scanning when adapter is powered on.
if (CrossBleAdapter.Current.Status == AdapterStatus.PoweredOn)
{
//Trigger event and add to devices list
Console.WriteLine("Started scanning");
_currentScan = CrossBleAdapter.Current.Scan().Subscribe(result =>
{
if (result.Device != null && !string.IsNullOrEmpty(result.Device.Name) && !uniqueGuids.Contains(result.Device.Uuid))
{
//Set device
BLEDevice device = GetDevice(result.Device);
BLEScanResult scanResult = new BLEScanResult(device, result.Rssi, result.AdvertisementData);
if (device != null)
{
device.NeedsAuthentication = true;
callback(scanResult);
}
uniqueGuids.Add(result.Device.Uuid);
}
});
return(true);
}
return(false);
}
public async void WhenDeviceFound(BLEScanResult result)
{
Device.BeginInvokeOnMainThread(delegate {
StatusText.Text = "Dispositivo Encontrado.";
});
Console.WriteLine("Device found!");
BLEDevice device = result.Device;
int Rssi = result.Rssi;
IAdvertisementData data = result.AdvertisementData;
await Task.Delay(1500);
Windesheart.StopScanning();
try
{
device.Connect(OnConnectionFinished);
}
catch (Exception e1)
{
Console.WriteLine("ERRO - - - -" + e1);
}
}
