private async void Button_spate(object sender, EventArgs e)
{
IBluetoothAdapter adapter = DependencyService.Resolve <IBluetoothAdapter>();
BluetoothDeviceModel device = (BluetoothDeviceModel)BindingContext;
if (device != null)
{
using (var connection = adapter.CreateConnection(device))
{
if (await connection.RetryConnectAsync(retriesCount: 20))
{
byte[] buffer = new byte[BufferSize] {
(byte)'B'
};
if (!await connection.RetryTransmitAsync(buffer, OffsetDefault, buffer.Length))
{
await DisplayAlert("Error", "Cannot send data", "Close");
}
}
else
{
await DisplayAlert("Error", "Cannot connect.", "Close");
}
connection.Dispose();
}
}
}
private async Task <bool> TryConnect(BluetoothDeviceModel bluetoothDeviceModel)
{
const bool Connected = true;
const bool NotConnected = false;
var connection = _bluetoothAdapter.CreateManagedConnection(bluetoothDeviceModel);
try
{
connection.Connect();
App.CurrentBluetoothConnection = connection;
return(Connected);
}
catch (BluetoothConnectionException exception)
{
await DisplayAlert("Connection error",
$"Can not connect to the device: {bluetoothDeviceModel.Name}({bluetoothDeviceModel.Address}).\n" +
$"Exception: \"{exception.Message}\"\n" +
"Please, try another one.",
"Close");
return(NotConnected);
}
catch (Exception exception)
{
await DisplayAlert("Generic error", exception.Message, "Close");
return(NotConnected);
}
}
private async void lvBluetoothBoundedDevices_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
BluetoothDeviceModel bluetoothDeviceModel = e.SelectedItem as BluetoothDeviceModel;
lvBluetoothBoundedDevices.SelectedItem = null;
if (bluetoothDeviceModel != null)
{
var connected = await TryConnect(bluetoothDeviceModel);
if (connected)
{
await Navigation.PushAsync(new DigitPage());
}
}
}
public static Tuple <List <WifiDeviceModel>, List <BluetoothDeviceModel> > ReadClusterDevices()
{
List <WifiDeviceModel> wifiDevices = new List <WifiDeviceModel>();
string[] Lines = File.ReadAllLines(WifiDevicesFileName);
foreach (string line in Lines)
{
string[] data = line.Split("\t");
WifiDeviceModel bt = new WifiDeviceModel()
{
BSSID = data[0],
SSID = data[1],
Capabilities = data[2],
VenueName = data[3],
OperatorFriendlyName = data[4],
Level = int.Parse(data[5]),
DateTime = DateTime.Parse(data[6])
};
wifiDevices.Add(bt);
}
Lines = File.ReadAllLines(BluetoothDeviceFileName);
List <BluetoothDeviceModel> bluetoothDevices = new List <BluetoothDeviceModel>();
foreach (string line in Lines)
{
string[] data = line.Split("\t");
BluetoothDeviceModel bluetoothDeviceModel = new BluetoothDeviceModel()
{
Name = data[0],
Type = data[1],
RSSI = int.Parse(data[2]),
PowerLevel = int.Parse(data[3]),
Address = data[4],
DateTime = DateTime.Parse(data[5])
};
bluetoothDevices.Add(bluetoothDeviceModel);
}
return(new Tuple <List <WifiDeviceModel>, List <BluetoothDeviceModel> >(wifiDevices, bluetoothDevices));
}
private void PromptBluetoothOptions(IEnumerable <BluetoothDeviceModel> pairedDevices)
{
if (pairedDevices == null)
{
pairedDevices = new List <BluetoothDeviceModel>();
}
pairedDevices = pairedDevices.Append(BluetoothDeviceModel.GetDemoDevice());
// specify an adapter
var adapter = new BluetoothDeviceAdapter(pairedDevices);
adapter.ItemClick += async(s1, arg1) =>
{
await ViewModel.GetDiagnosticDevice(arg1.DeviceAddress);
};
DeviceRecyclerView.SetAdapter(adapter);
ConnectingLayout.Visibility = Android.Views.ViewStates.Gone;
DeviceSelectionLayout.Visibility = Android.Views.ViewStates.Visible;
}
public IBluetoothManagedConnection CreateManagedConnection(BluetoothDeviceModel bluetoothDeviceModel)
{
return(new BluetoothManagedConnection(bluetoothDeviceModel.Address));
}
