code: protected void performTransaction(Fragment frag, int flags, FragmentTransaction ft, int containerId) {
          configureAdditionMode(frag, flags, ft, containerId);
          ft.commitAllowingStateLoss();
      }
docs: Commits the transaction to the Fragment Manager.
  
  @param frag        Fragment to add
  @param flags       Added flags to the Fragment configuration
  @param ft          Transaction to add the fragment
  @param containerId Target containerID