code: private void handleFinishButtonTextIntent(@NonNull final Bundle extras) {
          CharSequence text = extras.getString(EXTRA_FINISH_BUTTON_TEXT);
  
          if (!TextUtils.isEmpty(text)) {
              setFinishButtonText(text);
          }
      }
docs: Handles the intent extra, which specifies the text of the finish button.
  
  @param extras
  The extras of the intent, which has been used to start the activity, as an instance
  of the class {@link Bundle}. The bundle may not be null