private async Task <bool> GetAllPrimaryServices(BluetoothCacheMode cacheMode)
{
var succeeded = false;
string debugMsg = String.Format("GetAllPrimaryServices: ");
Debug.WriteLine(debugMsg + "Entering");
// Get all the services for this device
var result = await BluetoothLEDevice.GetGattServicesAsync(cacheMode);
if (result.Status == GattCommunicationStatus.Success)
{
System.Diagnostics.Debug.WriteLine(debugMsg + "GetGattServiceAsync SUCCESS");
lock (Services)
{
foreach (var serv in result.Services)
{
if (!GattServiceUuidHelper.IsReserved(serv.Uuid))
{
var temp = new ObservableGattDeviceService(serv);
// This isn't awaited so that the user can disconnect while the services are still being enumerated
temp.Initialize();
Services.Add(temp);
}
else
{
serv.Dispose();
}
}
ServiceCount = Services.Count();
}
succeeded = true;
}
else if (result.Status == GattCommunicationStatus.ProtocolError)
{
ErrorText = debugMsg + "GetGattServiceAsync Error: Protocol Error - " + result.ProtocolError.Value;
System.Diagnostics.Debug.WriteLine(ErrorText);
string msg = "Connection protocol error: " + result.ProtocolError.Value.ToString();
var messageDialog = new MessageDialog(msg, "Connection failures");
await messageDialog.ShowAsync();
}
else if (result.Status == GattCommunicationStatus.Unreachable)
{
ErrorText = debugMsg + "GetGattServiceAsync Error: Unreachable";
System.Diagnostics.Debug.WriteLine(ErrorText);
string msg = "Device unreachable";
var messageDialog = new MessageDialog(msg, "Connection failures");
await messageDialog.ShowAsync();
}
return(succeeded);
}
/// <summary>
/// Connect to this bluetooth device
/// </summary>
/// <returns>Connection task</returns>
public async Task <bool> Connect()
{
bool ret = false;
string debugMsg = String.Format("Connect: ");
Debug.WriteLine(debugMsg + "Entering");
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunTaskAsync(async() =>
{
Debug.WriteLine(debugMsg + "In UI thread");
try
{
if (bluetoothLEDevice == null)
{
Debug.WriteLine(debugMsg + "Calling BluetoothLEDevice.FromIdAsync");
BluetoothLEDevice = await BluetoothLEDevice.FromIdAsync(DeviceInfo.Id);
if (bluetoothLEDevice == null)
{
ret = false;
Debug.WriteLine(debugMsg + "BluetoothLEDevice is null");
MessageDialog dialog = new MessageDialog("No permission to access device", "Connection error");
await dialog.ShowAsync();
return;
}
else
{
// Setup our event handlers and view model properties
BluetoothLEDevice.ConnectionStatusChanged += BluetoothLEDevice_ConnectionStatusChanged;
BluetoothLEDevice.NameChanged += BluetoothLEDevice_NameChanged;
}
}
else
{
Debug.WriteLine(debugMsg + "Previously connected, not calling BluetoothLEDevice.FromIdAsync");
}
Debug.WriteLine(debugMsg + "BluetoothLEDevice is " + BluetoothLEDevice.Name);
Name = bluetoothLEDevice.Name;
CanPair = DeviceInfo.Pairing.CanPair;
IsPaired = DeviceInfo.Pairing.IsPaired;
IsConnected = BluetoothLEDevice.ConnectionStatus == BluetoothConnectionStatus.Connected;
UpdateSecureConnectionStatus();
// Get all the services for this device
CancellationTokenSource GetGattServicesAsyncTokenSource = new CancellationTokenSource(5000);
BluetoothCacheMode cacheMode = BluetoothLEExplorer.Services.SettingsServices.SettingsService.Instance.UseCaching ? BluetoothCacheMode.Cached : BluetoothCacheMode.Uncached;
// In case we connected before, clear the service list and recreate it
Services.Clear();
var GetGattServicesAsyncTask = Task.Run(() => BluetoothLEDevice.GetGattServicesAsync(cacheMode), GetGattServicesAsyncTokenSource.Token);
result = await GetGattServicesAsyncTask.Result;
if (result.Status == GattCommunicationStatus.Success)
{
System.Diagnostics.Debug.WriteLine(debugMsg + "GetGattServiceAsync SUCCESS");
foreach (var serv in result.Services)
{
if (!GattServiceUuidHelper.IsReserved(serv.Uuid))
{
ObservableGattDeviceService temp = new ObservableGattDeviceService(serv);
// This isn't awaited so that the user can disconnect while the services are still being enumerated
temp.Initialize();
Services.Add(temp);
}
else
{
serv.Dispose();
}
}
ServiceCount = Services.Count();
ret = true;
}
else if (result.Status == GattCommunicationStatus.ProtocolError)
{
ErrorText = debugMsg + "GetGattServiceAsync Error: Protocol Error - " + result.ProtocolError.Value;
System.Diagnostics.Debug.WriteLine(ErrorText);
string msg = "Connection protocol error: " + result.ProtocolError.Value.ToString();
var messageDialog = new MessageDialog(msg, "Connection failures");
await messageDialog.ShowAsync();
}
else if (result.Status == GattCommunicationStatus.Unreachable)
{
ErrorText = debugMsg + "GetGattServiceAsync Error: Unreachable";
System.Diagnostics.Debug.WriteLine(ErrorText);
string msg = "Device unreachable";
var messageDialog = new MessageDialog(msg, "Connection failures");
await messageDialog.ShowAsync();
}
}
catch (Exception ex)
{
Debug.WriteLine(debugMsg + "Exception - " + ex.Message);
string msg = String.Format("Message:\n{0}\n\nInnerException:\n{1}\n\nStack:\n{2}", ex.Message, ex.InnerException, ex.StackTrace);
var messageDialog = new MessageDialog(msg, "Exception");
await messageDialog.ShowAsync();
// Debugger break here so we can catch unknown exceptions
Debugger.Break();
}
});
if (ret)
{
Debug.WriteLine(debugMsg + "Exiting (0)");
}
else
{
Debug.WriteLine(debugMsg + "Exiting (-1)");
}
return(ret);
}