Connect/Pair Bluetooth Headset and Android
<p>I'm trying to create a simple program that scans for a bluetooth headset (I'm testing with a PS3 headset) and then connect to it.  I'm using the code from the <a href="http://developer.android.com/resources/samples/BluetoothChat/index.html" rel="nofollow">bluetooth chat program example</a>.  However I cannot get it to connect to anything.  It is giving me an I/O Exception when it gets to the connect().</p>

<pre><code>private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); 
</code></pre>

<p>/**
     * This thread runs while attempting to make an outgoing connection
     * with a device. It runs straight through; the connection either
     * succeeds or fails.
     */
    private class ConnectThread extends Thread {
        private final BluetoothSocket mmSocket;
        private final BluetoothDevice mmDevice;</p>

<pre><code>    public ConnectThread(BluetoothDevice device) {
        mmDevice = device;
        BluetoothSocket tmp = null;

        // Get a BluetoothSocket for a connection with the given BluetoothDevice
        try {
            tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
        } catch (IOException e) {
            Log.e(TAG, "create() failed", e);
        }
        if (tmp == null){
            Log.i(TAG, "tmp is NULL");
        }
        mmSocket = tmp;
    }

    public void run() {
        Log.i(TAG, "BEGIN mConnectThread");
        setName("ConnectThread");

        // Always cancel discovery because it will slow down a connection
        mAdapter.cancelDiscovery();
        Log.i(TAG, "discovery is cancelled");

        // Make a connection to the BluetoothSocket
        try {
            // This is a blocking call and will only return on a successful connection or an exception
            mmSocket.connect();  //Doesn't like something here???
        } catch (IOException e) {
            Log.e(TAG, "IO error, ", e);
            connectionFailed();
            // Close the socket
            try {
                mmSocket.close();
            } catch (IOException e2) {
                Log.e(TAG, "unable to close() socket during connection failure", e2);
            }
            // Start the service over to restart listening mode
            newTBluetoothService.this.start();
            return;
        }

        // Reset the ConnectThread because we're done
        synchronized (newBluetoothService.this) {
            mConnectThread = null;
        }

        // Start the connected thread
        connected(mmSocket, mmDevice);
    }

    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) {
            Log.e(TAG, "close() of connect socket failed", e);
        }
    }
}
</code></pre>

<p>Here is the logcat:</p>

<hr>

<p>10-13 16:07:45.544: ERROR/BluetoothService.cpp(1259): 
stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)</p>

<p>10-13 16:07:45.544: DEBUG/newBluetoothService(2821): connect to: 00:22:A6:07:12:2B</p>

<p>10-13 16:07:45.544: DEBUG/newBluetoothService(2821): setState() 0 -> 2</p>

<p>10-13 16:07:45.552: INFO/newBluetoothService(2821): BEGIN mConnectThread</p>

<p>10-13 16:07:45.567: ERROR/BluetoothService.cpp(1259): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)</p>

<p>10-13 16:07:45.567: INFO/newBluetoothService(2821): discovery is cancelled</p>

<p>10-13 16:07:45.575: ERROR/BluetoothEventLoop.cpp(1259): onCreateDeviceResult: D-Bus error: org.bluez.Error.AlreadyExists (Device already exists)</p>

<p>10-13 16:07:45.583: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 2</p>

<p>10-13 16:07:46.700: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B</p>

<p>10-13 16:07:47.036: DEBUG/BluetoothService(1259): updateDeviceServiceChannelCache(00:22:A6:07:12:2B)</p>

<p>10-13 16:07:47.059: DEBUG/BluetoothService(1259):     uuid(system): 0000111e-0000-1000-8000-00805f9b34fb 1</p>

<p>10-13 16:07:47.067: DEBUG/BluetoothService(1259):     uuid(system): 00001108-0000-1000-8000-00805f9b34fb 2</p>

<p>10-13 16:07:47.075: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID</p>

<p>10-13 16:07:47.075: DEBUG/BluetoothService(1259): Cleaning up failed UUID channel lookup: 00:22:A6:07:12:2B 00001101-0000-1000-8000-00805f9b34fb</p>

<p>10-13 16:07:47.083: ERROR/newBluetoothService(2821): IO error, </p>

<p>10-13 16:07:47.083: ERROR/newBluetoothService(2821): java.io.IOException: Service discovery failed</p>

<p>10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at android.bluetooth.BluetoothSocket$SdpHelper.doSdp(BluetoothSocket.java:377)</p>

<p>10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:201)</p>

<p>10-13 16:07:47.083: ERROR/newBluetoothService(2821):     at com.nmtransfer.bluetooth.newBluetoothService$ConnectThread.run(newBluetoothService.java:347)</p>

<p>10-13 16:07:47.083: INFO/newBluetoothService(2821): Connection Failed</p>

<p>10-13 16:07:47.083: DEBUG/newBluetoothService(2821): setState() 2 -> 1</p>

<p>10-13 16:07:47.083: DEBUG/newBluetoothService(2821): start</p>

<p>10-13 16:07:47.083: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1</p>

<p>10-13 16:07:47.098: DEBUG/BluetoothService(1259): new handle 1000d</p>

<p>10-13 16:07:47.106: DEBUG/newBluetoothService(2821): setState() 1 -> 1</p>

<p>10-13 16:07:47.106: DEBUG/newBluetoothService(2821): BEGIN mAcceptThreadThread[Thread-
13,5,main]</p>

<p>10-13 16:07:47.114: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1</p>

<p>10-13 16:07:51.036: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B</p>

<p>10-13 16:07:53.583: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID</p>

<hr>

<p>Any help is much appreciated.</p>

<p>Thank you
Chris</p>
