@Nullable
    public static String[] getStringArray(@NonNull SharedPreferences prefs,
            @NonNull String key, @NonNull String delimiter) {
        return split(prefs.getString(key, null), delimiter);
    }
@ Nullable public static String [ ] getStringArray ( @ NonNull SharedPreferences prefs , @ NonNull String key , @ NonNull String delimiter ) { return split ( prefs . getString ( key , null ) , delimiter ) ; }
Retrieves strings array stored as single string.

@param delimiter Delimiter used to split the string.