我的蓝牙无法连接到设备

Question

我正在尝试使用我的android手机连接到pc或hc01，但知道我编写的代码现在无法连接到手机，因此任何人都可以帮助我 和UUID我应该使用什么，或者让任何人有一些恶魔供我试用 谢谢

我不为什么我单击它并始终连接失败，logcat会得到

com.example.lord1.myapplication123123 W/BluetoothAdapter: getBluetoothService() called with no BluetoothManagerCallback

这是我的代码：

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();
        }
    }
}

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 listPairedDevices(View view){
    mPairedDevices = mBTAdapter.getBondedDevices();
    if(mBTAdapter.isEnabled()) {
        // put it's one to the adapter
        for (BluetoothDevice device : mPairedDevices)
            mBTArrayAdapter.add(device.getName() + "\n" + device.getAddress());

        Toast.makeText(getApplicationContext(), "Show Paired Devices", Toast.LENGTH_SHORT).show();
    }
    else
        Toast.makeText(getApplicationContext(), "Bluetooth not on", Toast.LENGTH_SHORT).show();
}

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;
        }

        mBluetoothStatus.setText("Connecting...");
        // 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 == false) {
                    mConnectedThread = new ConnectedThread(mBTSocket);
                    mConnectedThread.start();

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