AndroidLocationGeofencing | Google Places API demo app

   private DatabaseReference mDatabase;
   mDatabase = FirebaseDatabase.getInstance().getReference();

  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == PLACE_PICKER_REQUEST && resultCode == RESULT_OK) {
        final Place place = PlacePicker.getPlace(this, data);
        if (place == null) {
            Log.i(TAG, "No place selected");
            return;
        }

        final String placeID = place.getId();
        //Place the data into Firebase
        insertPlcaeIdinDb(placeID);



        // Get live data information
        refreshPlacesData();
    }
}  
  private void insertPlcaeIdinDb(String placeID) 
  {
      mDatabase.child("yourBranchNameinDb").setValue(placeID );
   }