Ошибка подключения при попытке подключения к устройству Bluetooth

Question

Я пытался использовать эти коды для подключения моего устройства Android к другому устройству Android или к hc-05, однако соединение по-прежнему не удается.Кто-нибудь, помогите, пожалуйста.

код

private AdapterView.OnItemClickListener mDeviceClickListener = new AdapterView.OnItemClickListener() {
    public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {

        if(!mBTAdapter.isEnabled()) {
            Toast.makeText(getBaseContext(), "Bluetooth not on", Toast.LENGTH_SHORT).show();
            return;
        }

        Toast.makeText(HomeActivity.this, "Connecting...", Toast.LENGTH_SHORT).show();
        // Get the device MAC address, which is the last 17 chars in the View
        String info = ((TextView) v).getText().toString();
        final String address = info.substring(info.length() - 17);
        final String name = info.substring(0,info.length() - 17);

        // Spawn a new thread to avoid blocking the GUI one
        new Thread()
        {
            public void run() {
                boolean fail = false;

                BluetoothDevice device = mBTAdapter.getRemoteDevice(address);

                try {
                    mBTSocket = createBluetoothSocket(device);
                } catch (IOException e) {
                    fail = true;
                    Toast.makeText(getBaseContext(), "Socket creation failed", Toast.LENGTH_SHORT).show();
                }
                // Establish the Bluetooth socket connection.
                try {
                    mBTSocket.connect();
                } catch (IOException e) {
                    try {
                        fail = true;
                        mBTSocket.close();
                        mHandler.obtainMessage(CONNECTING_STATUS, -1, -1)
                                .sendToTarget();
                    } catch (IOException e2) {
                        //insert code to deal with this
                        Toast.makeText(getBaseContext(), "Socket creation failed", Toast.LENGTH_SHORT).show();
                    }
                }
                if(!fail) {
                    mConnectedThread = new ConnectedThread(mBTSocket);
                    mConnectedThread.start();

                    mHandler.obtainMessage(CONNECTING_STATUS, 1, -1, name)
                            .sendToTarget();
                }
            }
        }.start();
    }
};







final BroadcastReceiver blReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if(BluetoothDevice.ACTION_FOUND.equals(action)){
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            // add the name to the list
            mBTArrayAdapter.add(device.getName() + "\n" + device.getAddress());
            mBTArrayAdapter.notifyDataSetChanged();
        }
    }
};



 private void discover(View view){
    // Check if the device is already discovering
    if(mBTAdapter.isDiscovering()){
        mBTAdapter.cancelDiscovery();
        Toast.makeText(getApplicationContext(),"Discovery stopped",Toast.LENGTH_SHORT).show();
    }
    else{
        if(mBTAdapter.isEnabled()) {
            mBTArrayAdapter.clear(); // clear items
            mBTAdapter.startDiscovery();
            Toast.makeText(getApplicationContext(), "Discovery started", Toast.LENGTH_SHORT).show();
            registerReceiver(blReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND));
        }
        else{
            Toast.makeText(getApplicationContext(), "Bluetooth not on", Toast.LENGTH_SHORT).show();
            Intent turnBTon = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(turnBTon,1);
        }
    }
}


private class ConnectedThread extends Thread {
    private final BluetoothSocket mmSocket;
    private final InputStream mmInStream;
    private final OutputStream mmOutStream;


    public ConnectedThread(BluetoothSocket socket) {
        mmSocket = socket;
        InputStream tmpIn = null;
        OutputStream tmpOut = null;

        // Get the input and output streams, using temp objects because
        // member streams are final
        try {
            tmpIn = socket.getInputStream();
            tmpOut = socket.getOutputStream();
        } catch (IOException e) { }

        mmInStream = tmpIn;
        mmOutStream = tmpOut;
    }

    public void run() {
        byte[] buffer = new byte[1024];  // buffer store for the stream
        int bytes; // bytes returned from read()
        // Keep listening to the InputStream until an exception occurs
        while (true) {
            try {
                // Read from the InputStream
                bytes = mmInStream.available();
                if(bytes != 0) {
                    buffer = new byte[1024];
                    SystemClock.sleep(100); //pause and wait for rest of data. Adjust this depending on your sending speed.
                    bytes = mmInStream.available(); // how many bytes are ready to be read?
                    bytes = mmInStream.read(buffer, 0, bytes); // record how many bytes we actually read
                    mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer)
                            .sendToTarget(); // Send the obtained bytes to the UI activity
                }
            } catch (IOException e) {
                e.printStackTrace();

                break;
            }
        }
    }

    /* Call this from the main activity to send data to the remote device */
    public void write(String input) {
        byte[] bytes = input.getBytes();           //converts entered String into bytes
        try {
            mmOutStream.write(bytes);
        } catch (IOException e) { }
    }

    /* Call this from the main activity to shutdown the connection */
    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) { }
    }
}

и это мой обработчик:

 mHandler = new Handler(){
        public void handleMessage(android.os.Message msg){
            if(msg.what == MESSAGE_READ){
                String readMessage = null;
                try {
                    readMessage = new String((byte[]) msg.obj, "UTF-8");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                mReadBuffer.setText(readMessage);
            }

            if(msg.what == CONNECTING_STATUS){
                if(msg.arg1 == 1)
                    Toast.makeText(HomeActivity.this, "Connected to Device: " + (String)(msg.obj), Toast.LENGTH_SHORT).show();
                else
                    Toast.makeText(HomeActivity.this, "Connection Failed", Toast.LENGTH_SHORT).show();
            }
        }
    };

Я просто хотел бы подключиться к другому устройству.В Logcat нет ошибок.просто нет связи с целевым устройством.

Буду признателен за любую помощь