@SuppressLint("CommitTransaction")
    private static FragmentTransaction transit(FragmentManager fm, int transit) {
        return fm != null ? fm.beginTransaction().setTransition(transit) : null;
    }
@SuppressLint("CommitTransaction")
    private static FragmentTransaction transit(FragmentManager fm, int transit) {
        return fm != null ? fm.beginTransaction().setTransition(transit) : null;
    }
@ SuppressLint ( "CommitTransaction" ) private static FragmentTransaction transit ( FragmentManager fm , int transit ) { return fm != null ? fm . beginTransaction ( ) . setTransition ( transit ) : null ; }
Begin a transaction that uses the transition.

@return null if the FragmentManager is null
Begin a transaction that uses the transition .