如何在flutter中按创建时间对文件进行排序？

import 'package:path_provider/path_provider.dart';
import 'dart:io';

Future<List<FileSystemEntity>> getFileList() async {
  Directory directory = await getApplicationDocumentsDirectory();
  List<FileSystemEntity> fileList = directory.listSync();
  return fileList;
}

import 'dart:io';

Future<List<FileSystemEntity>> sortFilesByCreationTime() async {
  List<FileSystemEntity> fileList = await getFileList();
  
  fileList.sort((a, b) {
    FileStat fileStatA = a.statSync();
    FileStat fileStatB = b.statSync();
    return fileStatA.changed.compareTo(fileStatB.changed);
  });
  
  return fileList;
}