@Override
 public void onDestroy() {
   super.onDestroy();
   // Stop the Bluetooth services
   if (mService != null) mService.stop();
   if (D) Log.e(TAG, "--- ON DESTROY ---");
 }
 @Override
 protected void onDestroy() {
   // TODO Auto-generated method stub
   super.onDestroy();
   if (mBtService != null) {
     mBtService.stop();
   }
 }