code: private boolean notifyOnSkip() {
          boolean result = true;
          NavigationPreference selectedNavigationPreference =
                  navigationFragment.getSelectedNavigationPreference();
  
          if (selectedNavigationPreference != null && preferenceFragment != null) {
              for (WizardListener listener : wizardListeners) {
                  result &= listener.onSkip(selectedNavigationPreference, preferenceFragment,
                          selectedPreferenceFragmentArguments);
              }
          }
  
          return result;
      }
docs: Notifies all registered listeners that the user wants to skip the wizard.
  
  @return True, if skipping the wizard should be allowed, false otherwise