Change the Android bluetooth device name

Question

I know it\'s possible to get the local device name as described in the solution to this question Display Android Bluetooth Device Name

What I\'m interested in knowin

Answer 1

To change the bluetooth name properly you need to take care of following things:

1) You need following permissions: android.permission.BLUETOOTH android.permission.BLUETOOTH_ADMIN

2) Check the bluetooth state from adapter as you can only change the name of bluetooth is turned on.

val bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if(bluetoothAdapter.state == BluetoothAdapter.STATE_ON){
   bluetoothAdapter.setName("NewDeviceName");
}

3) If the bluetooth is not turned on then you can turn it on with the following command:

bluetoothAdapter.enable()

4) Last thing, please don't use static timers to wait for bluetooth state changes instead the proper way is that you can register for android.bluetooth.adapter.action.STATE_CHANGED broadcast and useBluetoothAdapter.EXTRA_STATE to get the new state of bluetooth whenever it is changed.

Note: Not all devices behave the same when it comes to bluetooth and changing the name due to caching and hw address, so never expect same outcome from all devices.