NullPointer Exception on socket.connect() Galaxy Tab 2 running Android 4.04

Question

I seem to be facing this weird error on a socket.connect():

09-18 14:41:22.968: W/System.err(2593): java.lang.NullPointerException
09-18 14:41:22.968: W/Syst         


        

Answer 1

I had the same problem with the Galaxy tab 2 and I solved with:

        BluetoothSocket tmp = null;
        try {
            tmp = device.createRfcommSocketToServiceRecord(SPP_UUID);

            // for others devices its works with:
            // Method m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});

            // for galaxy tab 2 with:
            Method m = device.getClass().getMethod("createInsecureRfcommSocket", new Class[] {int.class});

            tmp = (BluetoothSocket) m.invoke(device, 1);
        } catch (IOException e) {
            Log.e(TAG, "failed! error: " + e.getMessage());
        }
        socket = tmp;

        socket.connect();
        Log.i(TAG, "Client Connected!");

Hope this helps =D