public async Task <List <BluetoothDevice> > DiscoverPeersAsync()
{
if (bluetoothAdapter.IsDiscovering)
{
Console.WriteLine("Canceled existing discovery");
bluetoothAdapter.CancelDiscovery();
}
var filter1 = new IntentFilter(BluetoothAdapter.ActionDiscoveryStarted);
var filter2 = new IntentFilter(BluetoothDevice.ActionFound);
var filter3 = new IntentFilter(BluetoothAdapter.ActionDiscoveryFinished);
var filter5 = new IntentFilter(BluetoothDevice.ActionUuid);
var discoveryContext = new DiscoveryContext(applicationContext, bluetoothAdapter);
applicationContext.RegisterReceiver(discoveryContext.Receiver, filter1);
applicationContext.RegisterReceiver(discoveryContext.Receiver, filter2);
applicationContext.RegisterReceiver(discoveryContext.Receiver, filter3);
applicationContext.RegisterReceiver(discoveryContext.Receiver, filter5);
if (bluetoothAdapter.ScanMode != ScanMode.ConnectableDiscoverable)
{
EnableDiscovery();
}
bluetoothAdapter.StartDiscovery();
var peers = await discoveryContext.FetchResultsAsync().ConfigureAwait(false);
applicationContext.UnregisterReceiver(discoveryContext.Receiver);
if (bluetoothAdapter.IsDiscovering)
{
Console.WriteLine("Warning: Still IsDiscovering");
}
return(peers);
}
