public async Task Print(string deviceName, string text)
{
using (BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter)
{
BluetoothDevice device = (from bd in bluetoothAdapter?.BondedDevices
where bd?.Name == deviceName
select bd).FirstOrDefault();
try
{
if (device != null)
{
using (BluetoothSocket bluetoothSocket = device?.
CreateRfcommSocketToServiceRecord(
UUID.FromString("00001101-0000-1000-8000-00805F9B34FB")))
{
bluetoothSocket?.Connect();
byte[] buffer = Encoding.UTF8.GetBytes(text);
bluetoothSocket?.OutputStream.Write(buffer, 0, buffer.Length);
bluetoothSocket.Close();
}
}
else
{
await Application.Current.MainPage.DisplayAlert("Hata Mesajı", "Yazıcı seçimi boş geçilemez!!!", "Cancel");
}
}
catch (Exception exp)
{
throw exp;
}
}
}
public override void OnReceive(Context context, Intent intent)
{
var hostAddress = intent.GetStringExtra(HostAddressTag);
var workId = intent.GetStringExtra(WorkIdTag);
var notificationId = intent.GetIntExtra(NotificationIdTag, 0);
if (workId != null && notificationId != 0 && hostAddress != null)
{
Log.Debug("Aborting work for {Action} {NotificationId} {WorkId}", intent.Action, notificationId, workId);
try
{
WorkManager.GetInstance(Application.Context).CancelWorkById(UUID.FromString(workId));
NotificationHelper.DestroyNotification(notificationId);
switch (intent.Action)
{
case ActionKindShutdown:
SystemStateManager.Clear(hostAddress, SystemStateKind.Shutdown);
break;
case ActionKindHibernate:
SystemStateManager.Clear(hostAddress, SystemStateKind.Hibernate);
break;
case ActionKindRestart:
SystemStateManager.Clear(hostAddress, SystemStateKind.Restart);
break;
}
}
catch (Exception e)
{
Log.Error(e);
}
}
}
public static void PrintNew(string bt_printer)
{
try{
string path = Android.OS.Environment.ExternalStorageDirectory.ToString();
string filename = "ic_logo.png";
string fullPath = System.IO.Path.Combine(path, filename);
byte[] dataBytes = System.IO.File.ReadAllBytes(fullPath);
Bitmap icon = BitmapFactory.DecodeFile(fullPath);
var ms = new MemoryStream();
icon.Compress(Bitmap.CompressFormat.Png, 90, ms);
var iconBytes = ms.ToArray();
if (bt_printer != "" || bt_printer != null || bt_printer.Length > 0)
{
byte[] SELECT_BIT_IMAGE_MODE = { 0x1B, 0x2A, 33, 255, 3 };
BluetoothSocket socket = null;
SELECT_BIT_IMAGE_MODE = iconBytes;
BluetoothDevice hxm = BluetoothAdapter.DefaultAdapter.GetRemoteDevice(bt_printer);
UUID applicationUUID = UUID.FromString("00001101-0000-1000-8000-00805F9B34FB");
socket = hxm.CreateRfcommSocketToServiceRecord(applicationUUID);
socket.Connect();
socket.OutputStream.Write(SELECT_BIT_IMAGE_MODE, 0, SELECT_BIT_IMAGE_MODE.Length);
socket.Close();
}
}catch (Exception ex) {
Shared.Services.Logs.Insights.Send("Print", ex);
}
}
private async void StartBeaconing()
{
if (!this.BeaconServiceReady)
{
System.Diagnostics.Debug.WriteLine("Beaconing cannot be started. Service is not ready.");
return;
}
this.StopBeaconing();
// fetch beacon regions
var ServerBeaconRegions = await Lighthouse.GetBeaconRegions();
// start monitoring on each region
foreach (Lighthouse.LHPEBeaconRegion region in ServerBeaconRegions)
{
SecureBeaconRegion BeaconRegion = null;
if (region.Minor != null)
{
BeaconRegion = new SecureBeaconRegion(region.Id, UUID.FromString(region.UUID), new Integer(Convert.ToInt32(region.Major)), new Integer(Convert.ToInt32(region.Minor)));
}
else if (region.Major != null)
{
BeaconRegion = new SecureBeaconRegion(region.Id, UUID.FromString(region.UUID), new Integer(Convert.ToInt32(region.Major)), null);
}
else
{
BeaconRegion = new SecureBeaconRegion(region.Id, UUID.FromString(region.UUID), null, null);
}
BeaconRegions.Add(BeaconRegion);
this.BeaconManager.StartMonitoring(BeaconRegion);
}
}
/// <summary>
/// Get the UUID's for the device details and sets the list
/// </summary>
/// <param name="gatt">Gatt.</param>
private void getDeviceDetails(BluetoothGatt gatt)
{
try
{
UUID deviceInfoUUID = UUID.FromString(BluetoothConstants.DEVICE_INFO_SERVICE);
BluetoothGattService deviceInfoSer = gatt.GetService(deviceInfoUUID);
deviceChar = new List <BluetoothGattCharacteristic> {
deviceInfoSer.GetCharacteristic(UUID.FromString(BluetoothConstants.DEVICE_SERIALNUM)),
deviceInfoSer.GetCharacteristic(UUID.FromString(BluetoothConstants.DEVICE_MODELNUM)),
deviceInfoSer.GetCharacteristic(UUID.FromString(BluetoothConstants.DEVICE_SOFTWARE_REV)),
deviceInfoSer.GetCharacteristic(UUID.FromString(BluetoothConstants.DEVICE_FIRMWARE_REV)),
deviceInfoSer.GetCharacteristic(UUID.FromString(BluetoothConstants.DEVICE_HARDWARE_REV))
};
foreach (BluetoothGattCharacteristic c in deviceChar)
{
try
{
gatt.SetCharacteristicNotification(c, false);
requestCharacteristic(gatt);
}
catch (System.Exception e)
{
string t = "";
// if the char dont exit for thiss
}
}
} catch (System.Exception e)
{
// stop ourselves
sendStateUpdate(gatt.Device.Address, false, "Device could not be read from: " + e.Message);
}
}
private async void Test()
{
BluetoothAdapter adapter = BluetoothAdapter.DefaultAdapter;
if (adapter == null)
{
throw new Exception("No Bluetooth adapter found.");
}
if (!adapter.IsEnabled)
{
throw new Exception("Bluetooth adapter is not enabled.");
}
var device = adapter.GetRemoteDevice("00:15:83:10:D6:40");
if (device == null)
{
throw new Exception("Named device not found.");
}
var _socket = device.CreateInsecureRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
await _socket.ConnectAsync();
byte[] buffer = Encoding.UTF8.GetBytes("1");
byte[] input = new byte[1000];
await _socket.OutputStream.WriteAsync(buffer, 0, buffer.Length);
await _socket.InputStream.ReadAsync(input, 0, 1000);
string st = Encoding.UTF8.GetString(input);
Console.WriteLine($"FROMCUP: {st}");
}
private async System.Threading.Tasks.Task ConnectToBTAsync()
{
if (adapter == null)
{
Toast.MakeText(this, "No bt adapter found", ToastLength.Short).Show();
}
if (!adapter.IsEnabled)
{
Toast.MakeText(this, "bt adapter not enabled", ToastLength.Short).Show();
}
BluetoothDevice device = (from bd in adapter.BondedDevices
where bd.Name == "HC-05"
select bd).FirstOrDefault();
if (device == null)
{
Toast.MakeText(this, "no device found...", ToastLength.Short).Show();
}
_socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
try
{
await _socket.ConnectAsync();
}
catch (Exception e)
{
Toast.MakeText(this, "could not connect", ToastLength.Short).Show();
}
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
internal void SetCharacteristicNotification(BluetoothGattCharacteristic characteristic, bool enabled)
{
if (bluetoothAdapter == null || bluetoothGatt == null)
{
logger.TraceWarning("BluetoothAdapter not initialized");
return;
}
if (characteristic.Uuid.Equals(UUID.FromString(SampleGattAttributes.PRESSURE_NOTIFICATION_HANDLE)))
{
bluetoothGatt.SetCharacteristicNotification(characteristic, enabled);
logger.TraceInformation("Setting notification: Pressure Characteristic detected ");
BluetoothGattDescriptor descriptor = characteristic.GetDescriptor(UUID.FromString("00002902-0000-1000-8000-00805F9B34FB"));
if (descriptor != null)
{
logger.TraceInformation("Setting notification: Pressure Descriptor Found");
descriptor.SetValue(BluetoothGattDescriptor.EnableNotificationValue.ToArray <byte>());
bluetoothGatt.WriteDescriptor(descriptor);
logger.TraceInformation("Setting notification: Write Pressure Descriptor");
}
else
{
logger.TraceWarning("NOTIFICATION SET UP IGNORED");
}
}
}
private void BtComm()
{
BluetoothAdapter adapter = BluetoothAdapter.DefaultAdapter;
string address = adapter.BondedDevices.FirstOrDefault(device => device.Name.Contains("Rover1"))?.Address;
try
{
BluetoothDevice device = adapter.GetRemoteDevice(address);
adapter.CancelDiscovery();
BluetoothSocket socket =
device.CreateRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805F9B34FB"));
socket.Connect();
Stream output = socket.OutputStream;
_readerThread = new Thread(() => ReaderLoop(socket.InputStream));
_readerThread.Start();
foreach (string message in _messageBuffer.GetConsumingEnumerable())
{
byte[] data = Encoding.ASCII.GetBytes(message);
output.Write(data, 0, data.Length);
output.Flush();
}
_readerThread.Abort();
Thread.Sleep(2000);
output.Close();
socket.Close();
socket.Dispose();
device.Dispose();
}
catch (Exception e)
{
Log.Error("RoverController", $"Exception {e}");
}
}
public IBluetoothSocket Connect(RoomVoiceControl.Bluetooth.BluetoothDevice device)
{
IBluetoothSocket socket = null;
Android.Bluetooth.BluetoothDevice bluetoothDevice = mBluetoothAdapter.GetRemoteDevice(device.Address);
UserDialogs.Instance.Toast("Connecting to " + bluetoothDevice);
try
{
btSocket = bluetoothDevice.CreateRfcommSocketToServiceRecord(UUID.FromString(MY_UUID));
btSocket.Connect();
socket = new AndroidBluetoothSocket()
{
BTSocket = btSocket
};
UserDialogs.Instance.Toast("Connected to Bluetooth!");
}
catch (System.Exception e)
{
Console.WriteLine(e.Message);
try
{
btSocket.Close();
}
catch (System.Exception)
{
UserDialogs.Instance.Alert("Connection Error!");
}
}
return(socket);
}
private async void ExecuteDeletePerson(string mPersonGroupId, string mPersonId)
{
string result = string.Empty;
mProgressDialog.Show();
AddLog("Request: Deleting person " + mPersonId);
try
{
var faceClient = new FaceClient();
mProgressDialog.SetMessage("Deleting selected persons...");
SetInfo("Deleting selected persons...");
UUID personId = UUID.FromString(mPersonId);
await faceClient.DeletePerson(mPersonGroupId, personId);
result = mPersonId;
}
catch (Java.Lang.Exception e)
{
result = null;
AddLog(e.Message);
}
RunOnUiThread(() =>
{
mProgressDialog.Dismiss();
if (result != null)
{
SetInfo("Person " + result + " successfully deleted");
AddLog("Response: Success. Deleting person " + result + " succeed");
}
});
}
public ConnectedThread(BluetoothDevice device, string UUIDString)
{
// Initializing objects
m_BtAdapter = BluetoothAdapter.DefaultAdapter;
m_UuidString = UUIDString;
m_FailedCon = false;
// Converting the UUID string into a UUID object
MY_UUID = UUID.FromString(m_UuidString); // Wandelt den UUID String in ein UUID Objekt um
// Use a temporary object that is later assigned to m_Socket
BluetoothSocket tmp = null;
m_Device = device;
// Get a BluetoothSocket to connect with the given BluetoothDevice
// Workaround to get the Bluetoothsocket
tmp = device.CreateRfcommSocketToServiceRecord(MY_UUID);
Class testClass = tmp.RemoteDevice.Class;
Class[] paramTypes = new Class[] { Integer.Type };
Method m = testClass.GetMethod("createRfcommSocket", paramTypes);
Java.Lang.Object[] param = new Java.Lang.Object[] { Integer.ValueOf(1) };
m_Socket = (BluetoothSocket)m.Invoke(tmp.RemoteDevice, param);
}
private void SetPersonSelected(int position)
{
TextView textView = (TextView)FindViewById(Resource.Id.text_person_selected);
if (position > 0)
{
String personGroupIdSelected = mPersonListAdapter.personGroupIds[position];
mPersonListAdapter.personGroupIds[position] = mPersonListAdapter.personGroupIds[0];
mPersonListAdapter.personGroupIds[0] = personGroupIdSelected;
String personIdSelected = mPersonListAdapter.personIdList[position];
mPersonListAdapter.personIdList[position] = mPersonListAdapter.personIdList[0];
mPersonListAdapter.personIdList[0] = personIdSelected;
ListView listView = (ListView)FindViewById(Resource.Id.list_persons);
listView.Adapter = mPersonListAdapter;
SetPersonSelected(0);
}
else if (position < 0)
{
SetVerifyButtonEnabledStatus(false);
textView.SetTextColor(Color.Red);
textView.Text = "no person selected for verification warning";
}
else
{
mPersonGroupId = mPersonListAdapter.personGroupIds[0];
mPersonId = UUID.FromString(mPersonListAdapter.personIdList[0]);
String personName = StorageHelper.GetPersonName(mPersonId.ToString(), mPersonGroupId, this);
RefreshVerifyButtonEnabledStatus();
textView.SetTextColor(Color.Black);
textView.Text = String.Format("Person to use: {0}", personName);
}
}
private static UUID FromShortUuid(string shortUuid, string baseUuid = null)
{
if (baseUuid == null)
{
baseUuid = bluetoothBaseUuid;
}
var split = shortUuid.Replace("0x", "").ToCharArray();
var newUuid = "";
if (split.Length == 4)// 16 bit
{
var splitBase = baseUuid.ToCharArray();
for (var i = 0; i < split.Length; i++)
{
splitBase[4 + i] = split[i];
}
newUuid = splitBase.Aggregate(newUuid, (current, s) => current + s);
return(UUID.FromString(newUuid));
}
else if (split.Length == 8)
{
var splitBase = baseUuid.ToCharArray();
for (var i = 0; i < split.Length; i++)
{
splitBase[i] = split[i];
}
newUuid = splitBase.Aggregate(newUuid, (current, s) => current + s);
return(UUID.FromString(newUuid));
}
Debugger.Break();
return(null);
}
/// <summary>
/// Start scanning for devices.
/// </summary>
/// <param name="serviceUuids">White-listed service UUIDs</param>
public async void StartScanningForDevices(params string[] serviceUuids)
{
DiscoveredDevices = new List <IDevice>();
IsScanning = true;
var uuids = new List <UUID>();
foreach (var id in serviceUuids)
{
var guid = id.ToGuid();
uuids.Add(UUID.FromString(guid.ToString("D")));
}
if (uuids.Count == 0)
{
_adapter.StartLeScan(this);
}
else
{
_adapter.StartLeScan(uuids.ToArray(), this);
}
await Task.Delay(ScanTimeout);
if (IsScanning)
{
StopScanningForDevices();
ScanTimeoutElapsed(this, EventArgs.Empty);
}
}
public Task <IBLECharacteristic> ReadCharacteristicAsync(string serviceGUID, string characteristicGUID)
{
readCharacteristicTCS = new TaskCompletionSource <IBLECharacteristic>();
try
{
if (_gatt == null)
{
Debug.WriteLine("Connect to Bluetooth Device first");
readCharacteristicTCS.TrySetException(new Exception("Connect to Bluetooth Device first"));
}
BluetoothGattCharacteristic chara = _gatt.GetService(UUID.FromString(serviceGUID)).GetCharacteristic(UUID.FromString(characteristicGUID));
if (null == chara)
{
readCharacteristicTCS.TrySetException(new Exception("Bluetooth Gatt Characteristic " + characteristicGUID + " Does Not Exist"));
}
if (false == _gatt.ReadCharacteristic(chara))
{
readCharacteristicTCS.TrySetException(new Exception("ReadCharacteristic was not initiated successfully"));
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
readCharacteristicTCS.TrySetException(new Exception(e.Message));
}
return(readCharacteristicTCS.Task);
}
public SendData(Handler handler)
{
BluetoothAdapter = BluetoothAdapter.DefaultAdapter;
state = StateEnum.None;
MessageHandler = handler;
uuid = UUID.FromString("c88ae110-c0e0-11ea-b3de-0242ac130004");
}
public Task <bool> UnsubscribeCharacteristic(string serviceGUID, string characteristicGUID, string descriptorGUID)
{
unsubscribeCharacteristicTCS = new TaskCompletionSource <bool>();
try
{
if (_gatt == null)
{
Debug.WriteLine("Connect to Bluetooth Device first");
unsubscribeCharacteristicTCS.TrySetException(new Exception("Connect to Bluetooth Device first"));
}
BluetoothGattCharacteristic chara = _gatt.GetService(UUID.FromString(serviceGUID)).GetCharacteristic(UUID.FromString(characteristicGUID));
if (null == chara)
{
subscribeCharacteristicTCS.TrySetException(new Exception("Characteristic Id: " + characteristicGUID + " Not Found in Service: " + serviceGUID));
}
_gatt.SetCharacteristicNotification(chara, false);
BluetoothGattDescriptor descriptor = chara.GetDescriptor(UUID.FromString(descriptorGUID));
descriptor.SetValue(BluetoothGattDescriptor.DisableNotificationValue.ToArray());
_gatt.WriteDescriptor(descriptor);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
unsubscribeCharacteristicTCS.TrySetException(new Exception(e.Message));
}
return(unsubscribeCharacteristicTCS.Task);
}
/// <summary>
/// Connect to the device given host name
/// </summary>
/// <param name="deviceHostName">Raw host name of the device</param>
/// <returns>True if connected successfully. Else False</returns>
public async Task <bool> ConnectAsync(string deviceHostName)
{
if (_socket != null)
{
_socket.Dispose();
_socket = null;
}
if (!_adapter.IsEnabled)
{
throw new Exception("Bluetooth is off. Please turn it on from settings.");
}
SelectedDevice = _adapter.BondedDevices.FirstOrDefault(d => d.Address == deviceHostName);
if (SelectedDevice != null)
{
var uuids = SelectedDevice.GetUuids();
if (uuids != null && uuids.Length > 0)
{
return(await Task.Run <bool>(() =>
{
_socket = SelectedDevice.CreateRfcommSocketToServiceRecord(UUID.FromString(uuids[0].ToString()));
_socket.Connect();
return IsConnected;
}));
}
}
return(IsConnected);
}
// tries to open a connection to the bluetooth printer device
public void OpenBT()
{
try
{
if (BlueToothOpen)
{
return;
}
// Standard SerialPortService ID
UUID uuid = UUID.FromString("00001101-0000-1000-8000-00805f9b34fb");
BTSocket = BTDevice.CreateRfcommSocketToServiceRecord(uuid);
BTSocket.Connect();
BTOutputStream = new StreamWriter(BTSocket.OutputStream);
BTInputStream = new StreamReader(BTSocket.InputStream);
// BluetoothServerSocket serverSock = mBluetoothAdapter.ListenUsingRfcommWithServiceRecord("Bluetooth", Java.Util.UUID.FromString(uuid));
// mmSocket = serverSock.Accept();
// mmSocket.InputStream.ReadTimeout = 1000;
// serverSock.Close();//服务器获得连接后腰及时关闭ServerSocket
// 启动新的线程，开始数据传输
BlueToothOpen = true;
}
catch (System.Exception Ex)
{
BlueToothOpen = false;
BTSocket.Dispose();
WriteErrorLog(Ex);
}
}
/// <summary>
/// Connects the controller with bluetooth device.
/// </summary>
/// <param name="device">Bluetooth device</param>
public void Connect(BluetoothDevice device)
{
try
{
BluetoothSocket tempBTSocket = null;
try
{
tempBTSocket = device.CreateRfcommSocketToServiceRecord(UUID.FromString(BLUETOOTH_UUID_STRING));
tempBTSocket.Connect();
}
catch (IOException ex)
{
Log.Debug("SocketConnection", "Connection Error 1");
}
mSocket = tempBTSocket;
mSocketWriter = new SocketWriter(tempBTSocket.OutputStream);
byte[] bytes = new byte[10] {
10, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
mSocketWriter.Write(bytes);
}
catch (IOException ex)
{
Log.Debug("SocketConnection", "Connection Error 2");
}
}
protected override async Task InitializeAsync()
{
await base.InitializeAsync();
// BLE requires location permissions
if (await SensusServiceHelper.Get().ObtainPermissionAsync(Permission.Location) != PermissionStatus.Granted)
{
// throw standard exception instead of NotSupportedException, since the user might decide to enable location in the future
// and we'd like the probe to be restarted at that time.
string error = "Geolocation is not permitted on this device. Cannot start Bluetooth probe.";
await SensusServiceHelper.Get().FlashNotificationAsync(error);
throw new Exception(error);
}
_deviceIdCharacteristic = new BluetoothGattCharacteristic(UUID.FromString(DEVICE_ID_CHARACTERISTIC_UUID), GattProperty.Read, GattPermission.Read);
_deviceIdCharacteristic.SetValue(Encoding.UTF8.GetBytes(SensusServiceHelper.Get().DeviceId));
_deviceIdService = new BluetoothGattService(UUID.FromString(Protocol.Id), GattServiceType.Primary);
_deviceIdService.AddCharacteristic(_deviceIdCharacteristic);
_bluetoothAdvertiserCallback = new AndroidBluetoothServerAdvertisingCallback(_deviceIdService, _deviceIdCharacteristic);
if (ScanMode.HasFlag(BluetoothScanModes.Classic))
{
_bluetoothBroadcastReceiver = new AndroidBluetoothDeviceReceiver(this);
IntentFilter intentFilter = new IntentFilter();
intentFilter.AddAction(BluetoothDevice.ActionFound);
Application.Context.RegisterReceiver(_bluetoothBroadcastReceiver, intentFilter);
}
}
private BluetoothSocket CreateConnection(String uuid, String address)
{
BluetoothDevice pairedBTDevice = null;
BluetoothSocket btSocket = null;
// Preparando ...
try
{
// Iniciamos a conexão com o dispositivo solicitado
pairedBTDevice = mBluetoothAdapter.GetRemoteDevice(address);
// Indicamos ao adaptador que não seja visível
mBluetoothAdapter.CancelDiscovery();
}
catch (Exception e)
{
throw new System.ApplicationException("Erro ao encontrar o Robô.", e);
}
// Conectando ...
try
{
// Inicamos o socket de comunicação com o Raspberry
btSocket = pairedBTDevice.CreateRfcommSocketToServiceRecord(UUID.FromString(uuid));
// Tentar conectar ao socket (processo assíncrono)
btSocket.ConnectAsync();
// 5 tentativas
for (int try_conn = 0; try_conn < 5; try_conn++)
{
// Esperar por 1 segundo
Thread.Sleep(1000);
// Checar o resultado da tentativa
if (btSocket.IsConnected)
{
// Sucesso! Retorna o socket e finaliza o processo
return(btSocket);
}
}
// Esgotando as 5 tentativas, fecha-se o socket e retorna um erro
btSocket.Close();
throw new System.ApplicationException("Falha ao tentar conectar ao Robô.");
}
catch (Exception e)
{
// Em caso de erro, fechamos o socket
try
{
btSocket.Close();
}
catch (Exception ex)
{
// Ignore
}
throw new System.ApplicationException("Erro ao tentar conectar ao Robô.", e);
}
}
private void ConnectToDevice(TextView statusMessage)
{
var adapter = BluetoothAdapter.DefaultAdapter;
if (adapter == null)
{
statusMessage.Text = "No Bluetooth adapter found.";
return;
}
else if (!adapter.IsEnabled)
{
statusMessage.Text = "Please turn on Bluetooth";
return;
}
var device = adapter.BondedDevices.Where(d => d.Name == "HC-05").FirstOrDefault();
if (device == null)
{
statusMessage.Text = "Could not find HC-05";
return;
}
_socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
_socket.Connect();
statusMessage.Text = "Connected";
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
isRecording = false;
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
SetContentView(Resource.Layout.activity_main);
textBox = FindViewById <TextView>(Resource.Id.search_voice_btn);
Android.Support.V7.Widget.Toolbar toolbar = FindViewById <Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
SetSupportActionBar(toolbar);
var adapter = BluetoothAdapter.DefaultAdapter;
var device = adapter.BondedDevices.FirstOrDefault(x => x.Name == "Richmond’s iPhone");
var _socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
var t = _socket.ConnectAsync();
t.GetAwaiter().GetResult();
var s = t.Status;
// Read data from the device
//await _socket.InputStream.ReadAsync(buffer, 0, buffer.Length);
//// Write data to the device
//await _socket.OutputStream.WriteAsync(buffer, 0, buffer.Length);
FloatingActionButton fab = FindViewById <FloatingActionButton>(Resource.Id.fab);
fab.Click += FabOnClick;
}
private BluetoothSocket TryGetSocket(BluetoothDevice bluetoothDevice, string uuid = null)
{
UUID id = UUID.FromString(uuid ?? "00001101-0000-1000-8000-00805F9B34FB");
try
{
_btSocket = bluetoothDevice?.CreateRfcommSocketToServiceRecord(id); // Secure Socket
return(_btSocket);
}
catch (Exception e1)
{
Console.WriteLine(e1);
try
{
_btSocket = bluetoothDevice?.CreateInsecureRfcommSocketToServiceRecord(id); // Insecure Socket
return(_btSocket);
}
catch (Exception e2)
{
Console.WriteLine(e2);
_btSocket?.Dispose();
return(null);
}
}
}
public static void Print(string bt_printer, string value)
{
try{
if (bt_printer != "" || bt_printer != null || bt_printer.Length > 0)
{
var x = BluetoothAdapter.DefaultAdapter.BondedDevices;
BluetoothSocket socket = null;
BufferedReader inReader = null;
BufferedWriter outReader = null;
BluetoothDevice hxm = BluetoothAdapter.DefaultAdapter.GetRemoteDevice(bt_printer);
UUID applicationUUID = UUID.FromString("00001101-0000-1000-8000-00805F9B34FB");
socket = hxm.CreateRfcommSocketToServiceRecord(applicationUUID);
socket.Connect();
inReader = new BufferedReader(new InputStreamReader(socket.InputStream));
outReader = new BufferedWriter(new OutputStreamWriter(socket.OutputStream));
outReader.Write(value);
outReader.Flush();
Thread.Sleep(5 * 1000);
var s = inReader.Ready();
inReader.Skip(0);
//close all
inReader.Close();
socket.Close();
outReader.Close();
}
}catch (Exception ex) {
Shared.Services.Logs.Insights.Send("Print", ex);
}
}
public void Connect(BluetoothDevice device, bool secure, string code)
{
MY_UUID_SECURE = UUID.FromString(MY_UUID + code);
MY_UUID_INSECURE = UUID.FromString(MY_UUID + code);
if (state == STATE_CONNECTING)
{
if (connectThread != null)
{
connectThread.Cancel();
connectThread = null;
}
}
// Cancel any thread currently running a connection
if (connectedThread != null)
{
connectedThread.Cancel();
connectedThread = null;
}
// Start the thread to connect with the given device
connectThread = new ConnectThread(device, this, secure);
connectThread.Start();
UpdateUserInterfaceTitle();
}
public async Task Print(string deviceName, byte[] buffer)
{
using (BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter)
{
BluetoothDevice device = (from bd in bluetoothAdapter?.BondedDevices
where bd?.Name == deviceName
select bd).FirstOrDefault();
try
{
using (BluetoothSocket bluetoothSocket = device?.
CreateRfcommSocketToServiceRecord(
UUID.FromString("00001101-0000-1000-8000-00805f9b34fb")))
{
bluetoothSocket?.Connect();
//byte[] buffer = Encoding.UTF8.GetBytes(text);
bluetoothSocket?.OutputStream.Write(buffer, 0, buffer.Length);
bluetoothSocket.Close();
}
}
catch (Exception exp)
{
throw exp;
}
}
}
public void testParseInvalidUuid()
{
UUID uuid = UUID.FromString("2f234454-cf6d-4a0f-adf2-f4911ba9ffa6");
Identifier id = Identifier.Parse("2f234454cf6d4a0fadf2f4911ba9ffa6");
AssertEx.AreEqual("Malformed UUID was parsed as expected.", id.ToUuid(), uuid);
}