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POAndroid Bluetooth Fails to Pair
 

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    <p>I am having a problem getting my devices to pair in Android. If I go into the settings and pair them manually I can get them to connect using the following code:</p> <p><strong><em>Server</em></strong></p> <pre><code>@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.connect); Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); startActivityForResult(discoverableIntent, REQUEST_ENABLE_BT); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if(requestCode == REQUEST_ENABLE_BT) { if(resultCode == RESULT_CANCELED) { new AlertDialog.Builder(this) .setTitle(R.string.error) .setMessage(R.string.bluetooth_unavailable) .setPositiveButton(android.R.string.ok, AndroidUtils.DismissListener) .create() .show(); } else { mServerSocket = mAdapter.listenUsingRfcommWithServiceRecord("Moo Productions Bluetooth Server", mUUID); mState = State.ACCEPTING; BluetoothSocket socket = mServerSocket.accept(); mServerSocket.close(); connected(socket); } } } </code></pre> <p><strong><em>Client</em></strong></p> <pre><code>Set&lt;BluetoothDevice&gt; pairedDevices = mAdapter.getBondedDevices(); BluetoothSocket socket = null; // Search the list of paired devices for the right one for(BluetoothDevice device : pairedDevices) { try { mState = State.SEARCHING; socket = device.createRfcommSocketToServiceRecord(mUUID); mState = State.CONNECTING; socket.connect(); connected(socket); break; } catch (IOException e) { socket = null; continue; } } </code></pre> <p>But if the devices hadn't already been paired it gets out of the foreach without connecting to a valid socket. In that case I start discovering.</p> <pre><code>// If that didn't work, discover if(socket == null) { mState = State.SEARCHING; mReceiver = new SocketReceiver(); mContext.registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_FOUND)); mAdapter.startDiscovery(); } // ... Later ... private class SocketReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if(BluetoothDevice.ACTION_FOUND.equals(intent.getAction())) { try { // Get the device and try to open a socket BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); BluetoothSocket socket = device.createRfcommSocketToServiceRecord(mUUID); mState = State.CONNECTING; socket.connect(); // This is our boy, so stop looking mAdapter.cancelDiscovery(); mContext.unregisterReceiver(mReceiver); connected(socket); } catch (IOException ioe) { ioe.printStackTrace(); } } } } </code></pre> <p>But it will never find the other device. I never get a pairing dialog and when I step through I see that it discovers the correct device, but it fails to connect with this exception <code>java.io.IOException: Service discovery failed</code>. Any ideas as to what I'm missing?</p>
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    1. COhi CaseyB howz u? i am also stucking here in same problem ..means when i connecting from one device to other its get connected and again if i am doing from second to first device log cat showing the message "service discovery failed" so why it is not connecting from other device i had tryed it wid diffrent UUId's pls help me.
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    2. COI was never able to figure this out. I moved on to another project. Sorry.
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