private void connectToGattForceBleTransportAPI(IDevice device, bool autoconnect)
{
BluetoothDevice nativeDevice = ((BluetoothDevice)device.NativeDevice);
//This parameter is present from API 18 but only public from API 23
//So reflection is used before API 23
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
//no transport mode before lollipop, it will probably not work... gattCallBackError 133 again alas
nativeDevice.ConnectGatt(Application.Context, autoconnect, _gattCallback);
}
else if (Build.VERSION.SdkInt < BuildVersionCodes.M)
{
Method m = nativeDevice.Class.GetDeclaredMethod("connectGatt", new Java.Lang.Class[] {
Java.Lang.Class.FromType(typeof(Context))
, Java.Lang.Boolean.Type
, Java.Lang.Class.FromType(typeof(BluetoothGattCallback))
, Java.Lang.Integer.Type
});
int transport = nativeDevice.Class.GetDeclaredField("TRANSPORT_LE").GetInt(null); // LE = 2, BREDR = 1, AUTO = 0
BluetoothGatt mGatt = (BluetoothGatt)m.Invoke(nativeDevice, new Java.Lang.Object[] { Application.Context, false, _gattCallback, transport });
}
else
{
nativeDevice.ConnectGatt(Application.Context, autoconnect, _gattCallback, BluetoothTransports.Le);
}
}
public async Task <IEnumerable <IGattService> > ConnectAndDiscoverServicesAsync(bool autoConnect, CancellationToken token)
{
CancellationTokenRegistration tokenRegistration;
lock (_lock)
{
if (State != BluetoothLEDeviceState.Disconnected)
{
return(null);
}
State = BluetoothLEDeviceState.Connecting;
_bluetoothDevice = _bluetoothAdapter.GetRemoteDevice(Address);
if (_bluetoothDevice == null)
{
State = BluetoothLEDeviceState.Disconnected;
return(null);
}
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
_bluetoothGatt = _bluetoothDevice.ConnectGatt(_context, autoConnect, this, BluetoothTransports.Le);
}
else
{
_bluetoothGatt = _bluetoothDevice.ConnectGatt(_context, autoConnect, this);
}
if (_bluetoothGatt == null)
{
_bluetoothDevice.Dispose();
_bluetoothDevice = null;
State = BluetoothLEDeviceState.Disconnected;
return(null);
}
_connectCompletionSource = new TaskCompletionSource <IEnumerable <IGattService> >(TaskCreationOptions.RunContinuationsAsynchronously);
tokenRegistration = token.Register(() =>
{
lock (_lock)
{
Disconnect();
_connectCompletionSource?.SetResult(null);
}
});
}
var result = await _connectCompletionSource.Task;
_connectCompletionSource = null;
tokenRegistration.Dispose();
return(result);
}
/// <summary>
/// Connects to the GATT server hosted on the Bluetooth LE device.
/// </summary>
/// <param name="address"> The device address of the destination device.
/// </param>
/// <returns> Return true if the connection is initiated successfully. The connection result
/// is reported asynchronously through the
/// {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
/// callback. </returns>
public virtual bool Connect(Context context, BluetoothDevice device)
{
if (device == null)
{
Debug.WriteLine(TAG, "Device not found. Unable to connect.");
return(false);
}
// Previously connected device. Try to reconnect.
if (DeviceAddress != null && device.Address.Equals(DeviceAddress) && Gatt != null)
{
Debug.WriteLine(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (Gatt.Connect())
{
SetmConnectionState(STATE_CONNECTING);
return(true);
}
else
{
return(false);
}
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
Gatt = device.ConnectGatt(context, false, mGattCallback);
RefreshDeviceCache(Gatt);
Debug.WriteLine(TAG, "Trying to create a new connection.");
DeviceAddress = device.Address;
SetmConnectionState(STATE_CONNECTING);
return(true);
}
public void connect()
{
if (adapter == null)
{
Log.Debug(tag, "BluetoothAdapter is null");
}
BluetoothLeScanner scaner = adapter.BluetoothLeScanner;
if (scaner == null)
{
Log.Error(tag, "BluetoothLeScanner is null");
}
try
{
device = adapter.GetRemoteDevice(mac);
if (device == null)
{
Log.Debug(tag, "Device não encontrado");
}
gatt = device.ConnectGatt(this, true, gattCallBack);
}
catch (System.Exception ex)
{
Log.Debug(tag, ex.ToString());
}
}
private void ConnectToGattForceBleTransportAPI(bool autoconnect, CancellationToken cancellationToken)
{
//This parameter is present from API 18 but only public from API 23
//So reflection is used before API 23
if (Build.VERSION.SdkInt < BuildVersionCodes.Lollipop)
{
//no transport mode before lollipop, it will probably not work... gattCallBackError 133 again alas
var connectGatt = BluetoothDevice.ConnectGatt(Application.Context, autoconnect, _gattCallback);
_connectCancellationTokenRegistration.Dispose();
_connectCancellationTokenRegistration = cancellationToken.Register(() => DisconnectAndClose(connectGatt));
}
else if (Build.VERSION.SdkInt < BuildVersionCodes.M)
{
var m = BluetoothDevice.Class.GetDeclaredMethod("connectGatt", new Java.Lang.Class[] {
Java.Lang.Class.FromType(typeof(Context)),
Java.Lang.Boolean.Type,
Java.Lang.Class.FromType(typeof(BluetoothGattCallback)),
Java.Lang.Integer.Type
});
var transport = BluetoothDevice.Class.GetDeclaredField("TRANSPORT_LE").GetInt(null); // LE = 2, BREDR = 1, AUTO = 0
m.Invoke(BluetoothDevice, Application.Context, false, _gattCallback, transport);
}
else
{
var connectGatt = BluetoothDevice.ConnectGatt(Application.Context, autoconnect, _gattCallback, BluetoothTransports.Le);
_connectCancellationTokenRegistration.Dispose();
_connectCancellationTokenRegistration = cancellationToken.Register(() => DisconnectAndClose(connectGatt));
}
}
private void bluetoothScan()
{
if (Ble == null)
{
Ble = BluetoothAdapter.DefaultAdapter;
}
Debug.Write("\tStarting BLE analysis");
Debug.WriteLine("\t=========================================================");
foreach (var device in Ble.BondedDevices)
{
Debug.WriteLine("\t Device Paired -- " + device.Name);
}
Debug.WriteLine("\t=========================================================");
BluetoothDevice accuChek = Ble.BondedDevices.FirstOrDefault(x => x.Name == "Accu-Chek");
if (accuChek == null)
{
Debug.WriteLine("\t No Accu-Chek Found");
return;
}
GattCallbackService.AttachCharacteristicConsumer(new GlucoseCharacteristicConsumer(), new GlucoseContextCharacteristicConsumer());
var connection = accuChek.ConnectGatt(Android.App.Application.Context, true, GattCallbackService);
}
public void Connect(ConnectParameters connectParameters, CancellationToken token)
{
if (token.IsCancellationRequested)
{
return;
}
_currentConnectionToken = token;
IsOperationRequested = true;
if (connectParameters.ForceBleTransport)
{
ConnectToGattForceBleTransportAPI(connectParameters.AutoConnect);
}
else
{
/*_gatt = */
var t = BluetoothDevice.ConnectGatt(Application.Context, connectParameters.AutoConnect, _gattCallback);
if (t == null)
{
throw new Exception("Unknown error");
}
}
}
public void Connect()
{
if (gatt == null)
{
gatt = device.ConnectGatt(service, false, this);
}
}
//Connetti da device Bond (paired)
private void MyReceiver_Bounded_ConnectDevice_Event(BluetoothDevice obj)
{
BluetoothGatt g = obj.ConnectGatt(context, false, this);
Java.Lang.Reflect.Method m = g.Class.GetMethod("refresh", new Java.Lang.Class[0]);
if (m != null)
{
m.Invoke(g, new Java.Lang.Object[0]);
}
}
private void PlatformConnect()
{
if (_gatt == null)
{
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
// 使用 LE 传输方式进行连接, 避免设备不支持 BR/EDR 方式时出现 133 连接失败
_gatt = _device.ConnectGatt(Application.Context, false, _callback, BluetoothTransports.Le);
}
else
{
_gatt = _device.ConnectGatt(Application.Context, false, _callback);
}
}
else
{
_gatt.Connect();
}
}
private void OnDeviceConnect()
{
Log.Error("dana.ye->xamarin->bt", "手动点击按钮来停止扫描周围的蓝牙设备");
btAdapter.CancelDiscovery();
/*try
* {
#pragma warning disable CS0618 // 类型或成员已过时
* btAdapter.StopLeScan(bleScanCallback);
#pragma warning restore CS0618 // 类型或成员已过时
* }
* catch (Exception e)
* {
* Log.Error("dana.ye->xamarin->bt", "stopLeScan时出错 : " + e.Message);
* }*/
handler.RemoveCallbacks(action);
if (gatt != null)
{
gatt.Disconnect();
gatt.Close();
}
Log.Error("dana.ye->xamarin->bt", "即将进行BLE的设备连接");
String addr = searchedDevices[adapter.GetChooseItem()].Address;
SingleGattService.GetInstance().Address = addr;
BluetoothDevice device = btAdapter.GetRemoteDevice(addr);
GattCallBack mGattCallback = new GattCallBack(this);
SingleGattService.GetInstance().CurCallback = mGattCallback;
if (Android.OS.Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
Log.Error("dana.ye->xamarin->bt", "SdkInt >= M");
gatt = device.ConnectGatt(this, false, mGattCallback, BluetoothTransports.Le);
}
else
{
Log.Error("dana.ye->xamarin->bt", "SdkInt < M");
gatt = device.ConnectGatt(this, false, mGattCallback);
}
}
private void LeSensorConnect(Object sender, DoWorkEventArgs e, BluetoothDevice dev)
{
SensorStateBroadcastReceiver rec = new SensorStateBroadcastReceiver();
System.Timers.Timer sensorTimeOut = new System.Timers.Timer();
BGattCallback bcallback = new BGattCallback();
BluetoothGatt g = dev.ConnectGatt(Application.Context, true, bcallback);
sensorTimeOut.AutoReset = false;
sensorTimeOut.Interval = AppUtil.SENSOR_CONNECT_TIMEOUT;
sensorTimeOut.Elapsed += delegate {
sensorTimeOut.Enabled = false;
sendDisconnectStateUpdate(dev.Address);
Android.App.Application.Context.UnregisterReceiver(rec);
};
rec.SensorConnect += delegate {
sensorTimeOut.Enabled = false;
Android.App.Application.Context.UnregisterReceiver(rec);
};
rec.SensorDisconnect += delegate {
sensorTimeOut.Enabled = false;
Android.App.Application.Context.UnregisterReceiver(rec);
};
sensorTimeOut.Enabled = true;
IntentFilter fil = new IntentFilter();
fil.AddAction(AppUtil.SENSOR_CONNECT_ACTION);
fil.AddAction(AppUtil.SENSOR_DISCONNECT_ACTION);
fil.Priority = 98;
Android.App.Application.Context.RegisterReceiver(rec, fil);
System.Timers.Timer cancelCheck = new System.Timers.Timer();
cancelCheck.AutoReset = true;
cancelCheck.Interval = 5 * 1000;
cancelCheck.Elapsed += delegate {
BackgroundWorker worker = (BackgroundWorker)sender;
if (worker.CancellationPending)
{
g.Close();
cancelCheck.Enabled = false;
}
};
cancelCheck.Enabled = true;
}
public bool Connect()
{
this.IsConnected = false;
var startTime = DateTime.Now;
var isWait = true;
while (isWait)
{
if (_receiver.Device != null)
{
isWait = false;
}
else
{
var timeout = DateTime.Now - startTime;
if (timeout.TotalMilliseconds > this.Timeout)
{
isWait = false;
}
}
Task.Delay(50).Wait();
}
if (_receiver.Device == null)
{
throw new Exception("Scanner not found.");
}
_device = _receiver.Device;
_bluetoothGatt = _device.ConnectGatt(Xamarin.Forms.Forms.Context, false, _scannerServiceCallback);
isWait = true;
while (isWait)
{
isWait = !this.IsConnected;
if (isWait)
{
var timeout = DateTime.Now - startTime;
if (timeout.TotalMilliseconds > this.Timeout)
{
throw new Exception("Scanner connection timeout.");
}
Task.Delay(50).Wait();
}
}
return(this.IsConnected);
}
public void Connect()
{
BluetoothManager bluetoothManager = (BluetoothManager)ctx.GetSystemService(Context.BluetoothService);
if (bluetoothManager == null)
{
LogMessage("Unable to initialize BluetoothManager.");
throw new Exception("Unable to initialize BluetoothManager.");
}
if (bluetoothManager.Adapter == null)
{
LogMessage("Unable to obtain a BluetoothAdapter.");
throw new Exception("Unable to obtain a BluetoothAdapter.");
}
//stop scanning if scanning still in progress
bluetoothManager.Adapter.StopLeScan(leScanCallback);
mGattCallback = new BluetoothReaderGattCallback();
mGattCallback.ConnectionStateChange += MGattCallback_ConnectionStateChange;
mBluetoothReaderManager = new BluetoothReaderManager();
mBluetoothReaderManager.ReaderDetection += MBluetoothReaderManager_ReaderDetection;
if (mBluetoothGatt != null)
{
LogMessage("Clear old GATT connection");
mBluetoothGatt.Disconnect();
mBluetoothGatt.Close();
mBluetoothGatt = null;
}
BluetoothDevice device = bluetoothManager.Adapter.GetRemoteDevice(mDeviceAddress);
if (device == null)
{
LogMessage("Device not found. Unable to connect.");
OnStateChanged(new StateChangedEventArgs()
{
State = DriverState.ReaderDiconnected
});
throw new Exception("Device not found. Unable to connect.");
}
//Connect gat will connect and call mGattCallback which in turn calls detect reader
mBluetoothGatt = device.ConnectGatt(ctx, false, mGattCallback);
}
public void Connect(ConnectParameters connectParameters)
{
IsOperationRequested = true;
if (connectParameters.ForceBleTransport)
{
ConnectToGattForceBleTransportAPI(connectParameters.AutoConnect);
}
else
{
/*_gatt = */
BluetoothDevice.ConnectGatt(Application.Context, connectParameters.AutoConnect, _gattCallback);
}
}
public void Connect(ConnectParameters connectParameters, CancellationToken cancellationToken)
{
IsOperationRequested = true;
if (connectParameters.ForceBleTransport)
{
ConnectToGattForceBleTransportAPI(connectParameters.AutoConnect, cancellationToken);
}
else
{
var connectGatt = BluetoothDevice.ConnectGatt(Application.Context, connectParameters.AutoConnect, _gattCallback);
_connectCancellationTokenRegistration.Dispose();
_connectCancellationTokenRegistration = cancellationToken.Register(() => DisconnectAndClose(connectGatt));
}
}
// Implemented from IRig
public void Connect()
{
if (gatt != null)
{
return;
}
gatt = device.ConnectGatt(service, false, this);
/*
* handler.PostDelayed(() => {
* this.UpdateMockData();
* }, 100);
*/
}
public void ConnectGatt(BluetoothDevice device)
{
if (device == null)
{
if (Gatt != null)
{
Gatt.Close();
Gatt = null;
}
return;
}
Gatt = device.ConnectGatt(this, false, new DT1WatchDogGattCallback(this));
Gatt.RequestConnectionPriority(GattConnectionPriority.High);
}
public void Connetti(BluetoothDevice device)
{
Android.Bluetooth.Bond b = device.BondState;
if ((b == Bond.Bonded))// | (b==Bond.None))
{
BluetoothGatt g = device.ConnectGatt(this.context, false, this);
/*
* Java.Lang.Reflect.Method m = g.Class.GetMethod("refresh", new Java.Lang.Class[0]);
* if (m != null)
* {
* m.Invoke(g, new Java.Lang.Object[0]);
* }
*/
}
else
{
// Richidedere permessi per Android 6.0
// ActivityCompat.RequestPermissions(activity, new String[] { Manifest.Permission.AccessFineLocation, Manifest.Permission.AccessCoarseLocation}, 1001);
this.myReceiver = new BondStatusBroadcastReceiver();
this.myReceiver.Bounded_ConnectDevice_Event += this.MyReceiver_Bounded_ConnectDevice_Event;
this.myReceiver.Bounded_ConnectDevice_Event_ERROR += this.MyReceiver_Bounded_ConnectDevice_Event_ERROR;
IntentFilter intentFilter = new IntentFilter(BluetoothDevice.ActionFound);
/*
* intentFilter.AddAction(BluetoothDevice.ActionNameChanged);
* intentFilter.AddAction(BluetoothAdapter.ActionDiscoveryStarted);
* intentFilter.AddAction(BluetoothAdapter.ActionDiscoveryFinished);
* intentFilter.AddAction(BluetoothAdapter.ActionStateChanged);
*
*/
intentFilter.AddAction(BluetoothDevice.ActionBondStateChanged);
context.RegisterReceiver(this.myReceiver, intentFilter);
//BluetoothAdapter adapter = BluetoothAdapter.DefaultAdapter;
//adapter.StartDiscovery();
device.CreateBond();
}
}
public override void OnScanResult([GeneratedEnum] ScanCallbackType callbackType, ScanResult result)
{
base.OnScanResult(callbackType, result);
if (!deviceFound)
{
if (MainActivity.connectedHandleAddress == null ||
!MainActivity.connectedHandleAddress.Equals(result.Device.Address))
{
return;
}
Log.Info(TAG + DexService.Operation, "Device Found: " + result.Device.Name);
deviceFound = true;
BluetoothDevice = result.Device;
ConnectedGatt = BluetoothDevice.ConnectGatt(Context, false, GattCallback);
StopLeScan();
Log.Info(TAG + DexService.Operation + DexService.Operation, "onScanResult: " + result.Device.Name);
}
}
public Task ConnectAsync()
{
connectTCS = new TaskCompletionSource <bool>();
try
{
_gatt = _nativeDevice.ConnectGatt(Application.Context, false, this);
var connectionState = _bluetoothManager.GetConnectionState(_nativeDevice, ProfileType.Gatt);
if (connectionState != ProfileState.Connected)
{
_gatt.Connect();
}
}
catch (Exception e)
{
connectTCS.TrySetException(e);
}
return(connectTCS.Task);
}
/// <summary>
/// Process a device discovered during the scan.
/// </summary>
/// <param name="result">The ScanResult containing device information.</param>
public void DeviceResult(ScanResult result)
{
if (result == null)
{
return;
}
Debug.WriteLineIf(sw.TraceVerbose, $"++> DeviceResult: {result.Device.Name}");
if (_device == null && result.Device.Name == TargetDeviceName)
{
// found the device we're looking for!
_device = result.Device;
// stop the scan
_adapter.BluetoothLeScanner.FlushPendingScanResults(this);
_adapter.BluetoothLeScanner.StopScan(this);
// shout it to the world
State = BlueState.Found;
// connecting will spawn further events for setting up the device
_device.ConnectGatt(Android.App.Application.Context, true, _gattCallback);
}
}
public void EnumServices(Context ctx, string identifer)
{
BluetoothDevice device = mapDevices[identifer];
if (device != null)
{
GattDevice gattdevice = new GattDevice(ctx, identifer);
if (gatt != null)
{
//gatt.Disconnect();
gatt.Close(); //or gatt.Connect() to re-connect to device
gatt.Dispose();
}
gatt = device.ConnectGatt(ctx, false, gattdevice); //-> OnConnectionStateChange() -> DiscoverServices() -> OnServicesDiscovered() -> GattDevice.Initialize()
if (gatt == null)
{
Log.Error(TAG, string.Format("failed to connect to GATT server '{0}'", identifer));
}
}
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address The device address of the destination device.
*
* @return Return true if the connection is initiated successfully. The connection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public bool Connect(String address)
{
if (mBluetoothAdapter == null || address == null)
{
Log.Warn(TAG, "BluetoothAdapter not initialized or unspecified address.");
return(false);
}
// Previously connected device. Try to reconnect.
if (mBluetoothDeviceAddress != null && address == mBluetoothDeviceAddress && mBluetoothGatt != null)
{
Log.Debug(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (mBluetoothGatt.Connect())
{
mConnectionState = State.Connecting;
return(true);
}
else
{
return(false);
}
}
BluetoothDevice device = mBluetoothAdapter.GetRemoteDevice(address);
if (device == null)
{
Log.Warn(TAG, "Device not found. Unable to connect.");
return(false);
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
mBluetoothGatt = device.ConnectGatt(this, false, new BGattCallback(this));
Log.Debug(TAG, "Trying to create a new connection.");
mBluetoothDeviceAddress = address;
mConnectionState = State.Connecting;
return(true);
}
public void Connect(ConnectParameters connectParameters, CancellationToken cancellationToken)
{
IsOperationRequested = true;
IsAutoConnectRequested = connectParameters.AutoConnect;
if (connectParameters.ForceBleTransport)
{
ConnectToGattForceBleTransportAPI(connectParameters.AutoConnect, cancellationToken);
}
else
{
// If gatt is null then initiate the connection process by passing application context , connection parameters
//and gattcallbacks.
if (null == _gatt)
{
_gatt = BluetoothDevice.ConnectGatt(Application.Context, connectParameters.AutoConnect, _gattCallback);
}
//else a valid gatt object is already exist.Just call connect. DO NOT craete new Gatt object by calling ConnectGatt.
else
{
_gatt.Connect();
}
}
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address The device address of the destination device.
*
* @return Return true if the connection is initiated successfully. The connection result
* is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public bool Connect(String address)
{
logger.TraceInformation("Try connect to device");
if (bluetoothAdapter == null || address == null)
{
logger.TraceWarning("BluetoothAdapter not initialized or unspecified address.");
Toast.MakeText(thisActivity.ApplicationContext, "BluetoothAdapter not initialized or unspecified address.", ToastLength.Short).Show();
return(false);
}
BluetoothDevice device = bluetoothAdapter.GetRemoteDevice(address);
if (device == null)
{
logger.TraceWarning("Device not found. Unable to connect.");
Toast.MakeText(thisActivity.ApplicationContext, "Device not found. Unable to connect..", ToastLength.Short).Show();
return(false);
}
// We want to directly connect to the device, so we are setting the autoConnect
// parameter to false.
bluetoothGatt = device.ConnectGatt(this, false, gattCallback);
logger.TraceInformation("Trying to create a new connection.");
bluetoothDeviceAddress = address;
connectionState = ProfileState.Connecting;
if (SensorDataPage.Instance != null)
{
SensorDataPage.Instance.connectionStopwatch.Reset();
SensorDataPage.Instance.connectionStopwatch.Start();
//SensorDataPage.Instance.firstDataStopwatch.Start();
SensorDataPage.Instance.SensorView.ConnectionState = "Connecting...";
}
progressDialog = ProgressDialog.Show(thisActivity, "Please wait...", "Connecting...", true);
return(true);
}
protected override Task ConnectAsync()
{
if (bluetoothAdapter == null)
{
return(Task.FromException(new BluetoothLEException("BluetoothAdapter not initialized.")));
}
if (bluetoothGatt == null)
{
gattCallback = new GattCallbacks(
(gatt, status, newState) => // onConnectionStateChange
{
if (newState == ProfileState.Connected)
{
//intentAction = BluetoothLeService.ACTION_GATT_CONNECTED;
//BluetoothLeService.this.mConnectionState = 2;
//BluetoothLeService.this.broadcastUpdate(intentAction);
System.Diagnostics.Debug.WriteLine("Connected to GATT server.");
System.Diagnostics.Debug.WriteLine($"Attempting to start service discovery:{gatt?.DiscoverServices()}");
}
else if (newState == ProfileState.Disconnected)
{
//intentAction = BluetoothLeService.ACTION_GATT_DISCONNECTED;
//BluetoothLeService.this.mConnectionState = 0;
System.Diagnostics.Debug.WriteLine("Disconnected from GATT server.");
//BluetoothLeService.this.broadcastUpdate(intentAction);
}
},
(gatt, status) => // onServicesDiscovered
{
if (status == GattStatus.Success)
{
//BluetoothLeService.this.broadcastUpdate(BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED);
foreach (var service in gatt.Services)
{
System.Diagnostics.Debug.WriteLine($"GattService, UUID=[{service.Uuid}]");
}
Services.AddRange(gatt.Services.Select(S => new BluetoothGattServiceAndroid(this, S)));
RaiseServicesUpdated();
}
else
{
System.Diagnostics.Debug.WriteLine($"onServicesDiscovered received: {status}");
}
},
(gatt, characteristic, status) => // onCharacteristicRead
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"), characteristic);
},
(gatt, characteristic) => // onCharacteristicChanged
{
//BluetoothLeService.this.broadcastUpdate(BluetoothLeService.ACTION_CHAR_CHANGED, characteristic);
},
(gatt, characteristic, status) => // onCharacteristicWrite
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"), characteristic);
},
(gatt, descriptor, status) => // onDescriptorRead
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"), descriptor);
},
(gatt, descriptor, status) => // onDescriptorWrite
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"), descriptor);
},
(gatt, status) => //onReliableWriteCompleted
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"));
},
(gatt, rssi, status) => //onReadRemoteRssi
{
//BluetoothLeService.this.broadcastUpdate(BTConstants.responseMapMapLookup(status, "UnKown Response"), rssi);
});
bluetoothGatt = device.ConnectGatt(Android.App.Application.Context, false, gattCallback);
//Log.d(TAG, "Trying to create a new connection.");
//this.mBluetoothDeviceAddress = address;
//this.mConnectionState = 1;
//return true;
return(Task.CompletedTask);
}
else
{
//Log.d(TAG, "Trying to use an existing mBluetoothGatt for connection.");
if (bluetoothGatt.Connect() != true)
{
return(Task.FromException(new BluetoothLEException("BluetoothGatt connect fail.")));
}
else
{
//this.mConnectionState = 1;
return(Task.CompletedTask);
}
}
}
internal void Connect()
{
gatt = nativePeripheral.ConnectGatt(Application.Context, false, this);
}
//TODO: this really should be async. in the xplat API, make sure to asyncify
// Q: how to return in same context (requires a callback)
public void ConnectToDevice(BluetoothDevice device)
{
// returns the BluetoothGatt, which is the API for BLE stuff
// TERRIBLE API design on the part of google here.
device.ConnectGatt(Android.App.Application.Context, true, this._gattCallback);
}
public bool ConnectLeGattDevice(Context context, BluetoothDevice device)
{
try
{
BtGattDisconnect();
_gattConnectionState = State.Connecting;
_gattServicesDiscovered = false;
_btGattSppInStream = new MemoryQueueBufferStream(true);
_btGattSppOutStream = new BGattOutputStream(this);
_bluetoothGatt = device.ConnectGatt(context, false, new BGattCallback(this));
if (_bluetoothGatt == null)
{
LogString("*** ConnectGatt failed");
return(false);
}
_btGattConnectEvent.WaitOne(2000, false);
if (_gattConnectionState != State.Connected)
{
LogString("*** GATT connection timeout");
return(false);
}
_btGattDiscoveredEvent.WaitOne(2000, false);
if (!_gattServicesDiscovered)
{
LogString("*** GATT service discovery timeout");
return(false);
}
IList <BluetoothGattService> services = _bluetoothGatt.Services;
if (services == null)
{
LogString("*** No GATT services found");
return(false);
}
#if DEBUG
foreach (BluetoothGattService gattService in services)
{
if (gattService.Uuid == null || gattService.Characteristics == null)
{
continue;
}
Android.Util.Log.Info(Tag, string.Format("GATT service: {0}", gattService.Uuid));
foreach (BluetoothGattCharacteristic gattCharacteristic in gattService.Characteristics)
{
if (gattCharacteristic.Uuid == null)
{
continue;
}
Android.Util.Log.Info(Tag, string.Format("GATT characteristic: {0}", gattCharacteristic.Uuid));
Android.Util.Log.Info(Tag, string.Format("GATT properties: {0}", gattCharacteristic.Properties));
}
}
#endif
_gattCharacteristicSppRead = null;
_gattCharacteristicSppWrite = null;
_gattCharacteristicUuidSppRead = null;
_gattCharacteristicUuidSppWrite = null;
BluetoothGattService gattServiceSpp = _bluetoothGatt.GetService(GattServiceCarlySpp);
BluetoothGattCharacteristic gattCharacteristicSpp = gattServiceSpp?.GetCharacteristic(GattCharacteristicCarlySpp);
if (gattCharacteristicSpp != null)
{
if ((gattCharacteristicSpp.Properties & (GattProperty.Read | GattProperty.Write | GattProperty.Notify)) ==
(GattProperty.Read | GattProperty.Write | GattProperty.Notify))
{
_gattCharacteristicSppRead = gattCharacteristicSpp;
_gattCharacteristicSppWrite = gattCharacteristicSpp;
_gattCharacteristicUuidSppRead = GattCharacteristicCarlySpp;
_gattCharacteristicUuidSppWrite = GattCharacteristicCarlySpp;
#if DEBUG
Android.Util.Log.Info(Tag, "SPP characteristic Carly found");
#endif
}
}
else
{
gattServiceSpp = _bluetoothGatt.GetService(GattServiceWgSoftSpp);
BluetoothGattCharacteristic gattCharacteristicSppRead = gattServiceSpp?.GetCharacteristic(GattCharacteristicWgSoftSppRead);
BluetoothGattCharacteristic gattCharacteristicSppWrite = gattServiceSpp?.GetCharacteristic(GattCharacteristicWgSoftSppWrite);
if (gattCharacteristicSppRead != null && gattCharacteristicSppWrite != null)
{
if (((gattCharacteristicSppRead.Properties & (GattProperty.Read | GattProperty.Notify)) == (GattProperty.Read | GattProperty.Notify)) &&
((gattCharacteristicSppWrite.Properties & (GattProperty.Write)) == (GattProperty.Write)))
{
_gattCharacteristicSppRead = gattCharacteristicSppRead;
_gattCharacteristicSppWrite = gattCharacteristicSppWrite;
_gattCharacteristicUuidSppRead = GattCharacteristicWgSoftSppRead;
_gattCharacteristicUuidSppWrite = GattCharacteristicWgSoftSppWrite;
}
#if DEBUG
Android.Util.Log.Info(Tag, "SPP characteristic WgSoft found");
#endif
}
}
if (_gattCharacteristicSppRead == null || _gattCharacteristicSppWrite == null)
{
LogString("*** No GATT SPP characteristic found");
return(false);
}
if (!_bluetoothGatt.SetCharacteristicNotification(_gattCharacteristicSppRead, true))
{
LogString("*** GATT SPP enable notification failed");
return(false);
}
BluetoothGattDescriptor descriptor = _gattCharacteristicSppRead.GetDescriptor(GattCharacteristicConfig);
if (descriptor == null)
{
LogString("*** GATT SPP config descriptor not found");
return(false);
}
if (BluetoothGattDescriptor.EnableNotificationValue == null)
{
LogString("*** GATT SPP EnableNotificationValue not present");
return(false);
}
_gattWriteStatus = GattStatus.Failure;
descriptor.SetValue(BluetoothGattDescriptor.EnableNotificationValue.ToArray());
if (!_bluetoothGatt.WriteDescriptor(descriptor))
{
LogString("*** GATT SPP write config descriptor failed");
return(false);
}
if (!_btGattWriteEvent.WaitOne(2000))
{
LogString("*** GATT SPP write config descriptor timeout");
return(false);
}
if (_gattWriteStatus != GattStatus.Success)
{
LogString("*** GATT SPP write config descriptor status failure");
return(false);
}
#if false
byte[] sendData = Encoding.UTF8.GetBytes("ATI\r");
_btGattSppOutStream.Write(sendData, 0, sendData.Length);
while (_btGattReceivedEvent.WaitOne(2000, false))
{
#if DEBUG
Android.Util.Log.Info(Tag, "GATT SPP data received");
#endif
}
while (_btGattSppInStream.HasData())
{
int data = _btGattSppInStream.ReadByteAsync();
if (data < 0)
{
break;
}
#if DEBUG
Android.Util.Log.Info(Tag, string.Format("GATT SPP byte: {0:X02}", data));
#endif
}
#endif
return(true);
}
catch (Exception)
{
_gattConnectionState = State.Disconnected;
_gattServicesDiscovered = false;
return(false);
}
}