Clear the bluetooth name cache in android

Question

I want to clear the blueooth cache. I'm making application about bluetooth.

I just knowed Android bluetooth device name is cached in the phone. (when phone find the bluetooth device)

I can't find solution anywhere. I just saw fetchUuidsWithSdp(). someone said it clears the bluetooth cache in android phone.

but I don't know how use this method and I don't think that fetchUuidsWithSdp() will clear the cache.

Please Let me know how to clear the bluetooth cache in Android or how to use fetchUuidsWithSdp().

Thanks:)

Answer 1

1. Follow the instructions of the Android Guide in order to start the discovery.

2. When declaring your IntentFilter, add (at least) ACTION_FOUND and ACTION_UUID :

   IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
   filter.addAction(BluetoothDevice.ACTION_UUID);
   

3. Inside your receiver call fetchUuidsWithSdp(). You will get the UUIDs inside the ACTION_UUID:

   public void onReceive(Context context, Intent intent) {
                   String action = intent.getAction();
   
    if (BluetoothDevice.ACTION_FOUND.equals(action)) {
                   // Get the BluetoothDevice object from the Intent
                   BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
   
                   // get fresh uuids
                   device.fetchUuidsWithSdp();
   
               } 
               else if (BluetoothDevice.ACTION_UUID.equals(action)) {
                   // Get the device and teh uuids
                   BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                   Parcelable[] uuidExtra = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_UUID);
   
                   if(uuidExtra !=null){
   
                       for (Parcelable uuid : uuidExtra) {
                           Log.d("YOUR_TAG", "Device: " +  device.getName() + " ( "+ device.getAddress() +" ) - Service: " + uuid.toString());
                       }
   
               }
    }