How to get name of the connected Bluetooth device on android

Question

I'm trying to get the name of the device that is connected to the Android phone running android Oreo.

I was searching for an answer for the past two days, and none of them worked. suggestions mostly returning ioexception-read-failed-socket-might-closed-bluetooth error

The question is, is there any way to make Query that returns the connected Bluetooth device?

These are the links and suggestion which not working:

• IOException: read failed, socket might closed - Bluetooth on Android 4.3
• In Android, how to get the profile of a connected bluetooth device?
• list connected bluetooth devices?

I can get information about the device that is previously paired and trying to make a connection or a device trying to pair to the device. what I want is the name or the connection state of the currently paired and connected device.

Beforetime

Answer 1

here is the answer :

String name;
String address;
String threadName;
public void checkConnected()
{

       BluetoothAdapter.getDefaultAdapter().getProfileProxy(this, serviceListener, BluetoothProfile.HEADSET);
}

private BluetoothProfile.ServiceListener serviceListener = new BluetoothProfile.ServiceListener()
{
    @Override
    public void onServiceDisconnected(int profile)
    {

    }

    @Override
    public void onServiceConnected(int profile, BluetoothProfile proxy)
    {

        for (BluetoothDevice device : proxy.getConnectedDevices())
        {
            name = device.getName();
            address = device.getAddress();
            threadName = Thread.currentThread().getName();
            Toast.makeText(MainActivity.this, name+" " + address+ threadName,  Toast.LENGTH_SHORT).show();
            txtName.setText(name + " " + address);
            Log.i("onServiceConnected", "|" + device.getName() + " | " + device.getAddress() + " | " + proxy.getConnectionState(device) + "(connected = "
                    + BluetoothProfile.STATE_CONNECTED + ")");
        }

        BluetoothAdapter.getDefaultAdapter().closeProfileProxy(profile, proxy);
    }
};

Beforetime

Answer 2

Have you tried this?

BluetoothServerSocket bluetoothServerSocket = bluetoothAdapter.listenUsingRfcommWithServiceRecord("abc", uuid);          
BluetoothSocket bluetoothSocket = bluetoothServerSocket.accept();
BluetoothDevice device = bluetoothSocket.getRemoteDevice();
String deviceName = device.getName();

Pentaprism

looks like the code stock when it get to this line BluetoothSocket bluetoothSocket = bluetoothServerSocket.accept(); – Beforetime

yes, it's waiting for new incoming bluetooth connection request – Pentaprism

Have you checked the documentation? developer.android.com/guide/topics/connectivity/… Check out the sections "Querying paired devices" and "Discovering devices". Especially the call to device.getName() – Pentaprism

Thanks for your reply. But what I want is to get the connection status of the currently paired and connected Bluetooth device . No the ones that are trying to connect. For that situation I preferred to use broadcast Listers – Beforetime

And about the link you mentioned, BluetoothDevice class doesn't provide a function to make a query of paired devices connection state – Beforetime

Thank you very much – Elegist