Bluetooth connection failure “java.io.ioexception: read failure, socket may be closed or timeout, read RET: – 1”

I'm trying to connect to the device through an application installed in nexus 5 I want to make an application like rainbow contacts in Android In my app, my goal is to connect to another device via Bluetooth and transfer a group of contacts or files

I can use the pair device dialog box, but when I try to pair, an error will appear

//to create socket
if (secure) {
            bluetoothSocket = device.createRfcommSocketToServiceRecord(uuid);
        } else {
            bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid);
        }
//connection establishment
try {

                bluetoothSocket.connect();
                success = true;
                break;
            } catch (IOException e) {
                //try the fallback
                try {
                    Class<?> clazz = tmp.getRemoteDevice().getClass();
                    Class<?>[] paramTypes = new Class<?>[] {Integer.TYPE};
                    Method m = clazz.getmethod("createRfcommSocket",paramTypes);
                    Object[] params = new Object[] {Integer.valueOf(1)};
                    bluetoothSocket  = (BluetoothSocket) m.invoke(tmp.getRemoteDevice(),params);
                    Thread.sleep(500);
                    bluetoothSocket.connect();
                    success = true;
                    break;
                } catch (FallbackException e1) {
                    Log.w("BT","Could not initialize FallbackBluetoothSocket classes.",e);
                } catch (InterruptedException e1) {
                    Log.w("BT",e1.getMessage(),e1);
                } catch (IOException e1) {
                    Log.w("BT","Fallback Failed. Cancelling.",e1);
                }
            }

I was wrong

09-06 13:44:57.247  27860-27860/com.example.gauravdubey.myapplication I/BT﹕ Attempting to connect to Protocol: 00001101-0000-1000-8000-00805f9b34fb
09-06 13:44:57.247  27860-27860/com.example.gauravdubey.myapplication W/BluetoothAdapter﹕ getBluetoothService() called with no BluetoothManagerCallback
09-06 13:44:57.247  27860-27860/com.example.gauravdubey.myapplication D/BluetoothSocket﹕ connect(),SocketState: INIT,mPfd: {ParcelFileDescriptor: FileDescriptor[56]}
09-06 13:44:58.667  27860-27860/com.example.gauravdubey.myapplication W/BluetoothAdapter﹕ getBluetoothService() called with no BluetoothManagerCallback
09-06 13:44:58.667  27860-27860/com.example.gauravdubey.myapplication D/BluetoothSocket﹕ connect(),mPfd: {ParcelFileDescriptor: FileDescriptor[59]}
09-06 13:45:03.267  27860-27860/com.example.gauravdubey.myapplication W/BT﹕ Fallback Failed. Cancelling.
    java.io.IOException: read Failed,socket might closed or timeout,read ret: -1
            at android.bluetooth.BluetoothSocket.readAll(BluetoothSocket.java:505)
            at android.bluetooth.BluetoothSocket.waitSocketSignal(BluetoothSocket.java:482)
            at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:324)
            at com.example.gauravdubey.myapplication.BluetoothConnector$FallbackBluetoothSocket.connect(BluetoothConnector.java:198)
            at com.example.gauravdubey.myapplication.BluetoothConnector.connect(BluetoothConnector.java:62)
            at com.example.gauravdubey.myapplication.ConnectThread.run(ConnectThread.java:101)
            at com.example.gauravdubey.myapplication.MainActivity$1.onItemClick(MainActivity.java:288)
            at android.widget.AdapterView.performItemClick(AdapterView.java:299)
            at android.widget.AbsListView.performItemClick(AbsListView.java:1113)
            at android.widget.AbsListView$PerformClick.run(AbsListView.java:2911)
            at android.widget.AbsListView$3.run(AbsListView.java:3645)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5001)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
            at dalvik.system.NativeStart.main(Native Method)
09-06 13:45:03.267  27860-27860/com.example.gauravdubey.myapplication V/connectThread﹕ Could not connect to device: B0:D0:9C:8B:A4:47
09-06 13:45:03.267  27860-27860/com.example.gauravdubey.myapplication I/Choreographer﹕ Skipped 361 frames!  The application may be doing too much work on its main thread.

So what did I do wrong? Any help would be appreciated

Solution

In Bluetooth connector In the constructor of Java, a list of uuidcandidates will be passed

public BluetoothConnector(BluetoothDevice device,boolean secure,BluetoothAdapter adapter,List<UUID> uuidCandidates) 
          {
        this.device = device;
        this.secure = secure;
        this.adapter = adapter;
        this.uuidCandidates = uuidCandidates;

        if (this.uuidCandidates == null || this.uuidCandidates.isEmpty()) {
            this.uuidCandidates = new ArrayList<UUID>();
            this.uuidCandidates.add(UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66"));
        }
    }

Did you pass null?

If so, try calling device. For the Bluetooth device to be connected Fetchuuidswithsdp() and receive Bluetooth device in the receiver ACTION_ UUID intent Because this will get the list of UUIDs supported by the device