CODEWITHSUNDEEP
androidandroid-bluetooth
Keselme
Keselme

Reputation: 4279

BluetoothManager getConenctedDevices returns an empty array

I've connected to Xiaomi air buds via bluetooth settings on my phone. Then, I tried to use getConnectedDevices(BluetoothProfile.GATT_SERVER) and getConnectedDevices(BluetoothProfile.GATT) methods to get a list of connected devices, but in both cases I got an empty array as a result. If I try to use some other profile in getConnectedDevices() I get an exception that says that I'm using a wrong profile.

How can I correctly get a list of currently connected bluetooth devices to my phone.

code example, in onCreate:

mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
List<BluetoothDevice> connectedDevices = mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT_SERVER);
        for (BluetoothDevice b :
                connectedDevices) {
            Log.e(TAG, "onStart: connectedDevice - " + b.toString() );
        }

Upvotes: 2

Views: 743

Answers (1)

Yakir Malka
Yakir Malka

Reputation: 308

To get a list devices that you connected to ( in the past )

BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
Set<BluetoothDevice> pairedList = btAdapter.getBondedDevices();


for (BluetoothDevice pairedDevice : pairedList ) 
{
Log.d("BT", "pairedDevice.getName(): " + pairedDevice.getName());
Log.d("BT", "pairedDevice.getAddress(): " + pairedDevice.getAddress());
}

To get the device you correctly connected to you will have to use a broadcast receiver like in the following

    private final BroadcastReceiver btReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
    

            if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
               BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
               Log.i("Device",device.getName()+ "\n"+ device.getAddress()+"\n"+ device.getBondState());
            }
         
        }
    };

There's a few more ways to just find out what the state of the connection of the headset as shown here.

if that still not answering your question then I'm sorry I probably misunderstood your question / need.

Upvotes: 1

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