private void openDeviceConnection(BluetoothDevice btDevice)
{
try
{
mSocket = btDevice.CreateRfcommSocketToServiceRecord(getUUIDFromString());
mSocket.Connect();
mStream = mSocket.InputStream;
mReader = new InputStreamReader(mStream);
}
catch (IOException e)
{
throw e;
}
}
public void Connect()
{
BluetoothDevice device = mBluetoothAdapter.GetRemoteDevice(address);
System.Console.WriteLine("Conexion en curso" + device);
mBluetoothAdapter.CancelDiscovery();
try
{
btSocket = device.CreateRfcommSocketToServiceRecord(MY_UUID);
btSocket.Connect();
System.Console.WriteLine("Conexion Correcta");
}
catch (System.Exception e)
{
Console.WriteLine(e.Message);
try
{
btSocket.Close();
}
catch (System.Exception)
{
System.Console.WriteLine("Imposible Conectar");
}
System.Console.WriteLine("Socket Creado");
}
beginListenForData();
var ac = FindViewById<Button>(Resource.Id.ac);
var kapa = FindViewById<Button>(Resource.Id.kapa);
dataToSend = new Java.Lang.String("1");
ac.Click += delegate
{
dataToSend = new Java.Lang.String("1");
writeData(dataToSend);
};
kapa.Click += delegate
{
dataToSend = new Java.Lang.String("2");
writeData(dataToSend);
};
writeData(dataToSend);
}
public void Connect() {
BluetoothDevice device = mBluetoothAdapter.GetRemoteDevice(address);
System.Console.WriteLine("Conexion en curso" + device);
mBluetoothAdapter.CancelDiscovery();
try {
btSocket = device.CreateRfcommSocketToServiceRecord(MY_UUID);
btSocket.Connect();
System.Console.WriteLine("Conexion Correcta");
} catch (System.Exception e) {
Console.WriteLine (e.Message);
try {
btSocket.Close();
} catch (System.Exception) {
System.Console.WriteLine("Imposible Conectar");
}
System.Console.WriteLine("Socket Creado");
}
beginListenForData();
dataToSend = new Java.Lang.String("e");
writeData(dataToSend);
}
private bool TrytoConnect(BluetoothSocket mmSocket)
{
bool TrytoConnect = true;
int count = 0;
while (TrytoConnect) {
try {
Thread.Sleep(400);
mmSocket.Connect ();
TrytoConnect = false;
} catch {
count += 1;
if (count==5)
TrytoConnect = false;
}
}
return !TrytoConnect;
}
public string PrintInvSumm(BluetoothSocket mmSocket,BluetoothDevice mmDevice,DateTime printDate1,DateTime printDate2)
{
msg = "";
Stream mmOutputStream;
try {
UUID uuid = UUID.FromString ("00001101-0000-1000-8000-00805F9B34FB");
mmSocket = mmDevice.CreateInsecureRfcommSocketToServiceRecord (uuid);
if (mmSocket == null) {
msg = "Error creating sockect";
return msg;
}
if (mmDevice.BondState == Bond.Bonded) {
mmSocket.Connect ();
Thread.Sleep (300);
mmOutputStream = mmSocket.OutputStream;
byte[] charfont;
if (apara.PaperSize == "58mm") {
charfont = new Byte[] { 27, 33, 1 }; //Char font 9x17
mmOutputStream.Write (charfont, 0, charfont.Length);
}
if (apara.PaperSize == "80mm") {
charfont = new Byte[] { 27, 33, 0 }; //Char font 12x24
mmOutputStream.Write (charfont, 0, charfont.Length);
}
string text = GetInvoiceSumm (printDate1, printDate2);
//byte[] cc = ASCIIEncoding.ASCII.GetBytes(text);
byte[] cc = Encoding.GetEncoding ("GB18030").GetBytes (text);
int rem;
int result = Math.DivRem (cc.Length, 2048, out rem);
int pos = 0;
for (int line = 0; line < result; line++) {
IsStreamCanWrite (mmOutputStream);
mmOutputStream.Write (cc, pos, 2048);
pos += 2048;
}
if (rem > 0)
mmOutputStream.Write (cc, pos, rem);
//mmOutputStream.Write (cc, 0, cc.Length);
Thread.Sleep (3000);
mmOutputStream.Flush ();
mmOutputStream.Close ();
mmSocket.Close ();
}
} catch (Exception ex) {
msg = ex.Message;
}
return msg;
}
/// <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;
}
private void TryToConnect(){
System.Threading.ThreadPool.QueueUserWorkItem (o => {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter;
SetStatusText("acquiring adapter...");
if (bluetoothAdapter == null) {
SetStatusText("No Bluetooth Adapter found.");
return;
} else if (!bluetoothAdapter.IsEnabled) {
SetStatusText("BlueTooth Adapter disabled.");
return;
}
SetStatusText("finding Shelly's Garage");
var device = bluetoothAdapter.BondedDevices.FirstOrDefault (x => x.Name == "Shelly'sGarage");
if (device == null) {
SetStatusText("You ain't paired with Shelly's Garage.");
return;
}
SetStatusText("connecting...");
socket = device.CreateRfcommSocketToServiceRecord (Java.Util.UUID.FromString ("00001101-0000-1000-8000-00805f9b34fb"));
try {
socket.Connect ();
bluetoothAdapter.Dispose();
SetStatusText("Connected to Shelly's Garage");
RunOnUiThread(()=>{
connectorButton.Text = "Disconnect";
});
} catch {//Exception ex) {
SetStatusText("Connection failt.");
}
});
}
//Evento de conexion al Bluetooth
public void Connect()
{
//asignamos el sensor bluetooth con el que vamos a trabajar
mBluetoothAdapter = BluetoothAdapter.DefaultAdapter;
//Verificamos que este habilitado
if (!mBluetoothAdapter.Enable())
{
Toast.MakeText(this, "Bluetooth Desactivado",
ToastLength.Short).Show();
}
//verificamos que no sea nulo el sensor
if (mBluetoothAdapter == null)
{
Toast.MakeText(this,
"Bluetooth No Existe o esta Ocupado", ToastLength.Short)
.Show();
}
//Iniciamos la conexion con el arduino
BluetoothDevice device = mBluetoothAdapter.GetRemoteDevice(address);
System.Console.WriteLine("Conexion en curso" + device);
//Indicamos al adaptador que ya no sea visible
mBluetoothAdapter.CancelDiscovery();
try
{
//Inicamos el socket de comunicacion con el arduino
btSocket = device.CreateRfcommSocketToServiceRecord(MY_UUID);
//Conectamos el socket
btSocket.Connect();
System.Console.WriteLine("Conexion Correcta");
}
catch (System.Exception e)
{
//en caso de generarnos error cerramos el socket
Console.WriteLine(e.Message);
try
{
btSocket.Close();
}
catch (System.Exception)
{
System.Console.WriteLine("Imposible Conectar");
}
System.Console.WriteLine("Socket Creado");
}
//Una vez conectados al bluetooth mandamos llamar el metodo que generara el hilo
//que recibira los datos del arduino
beginListenForData();
//NOTA envio la letra e ya que el sketch esta configurado para funcionar cuando
//recibe esta letra.
//dataToSend = new Java.Lang.String("Hola");
//writeData(dataToSend);
}
