iOS遍历程序内某个文件夹下所有文件的属性

项目中有个文件管理系统，在做本地文件管理操作的时候，遇到了遍历本地文件的问题

遍历到的文件有些不需要显示，而且需要得到文件的相关属性，在此总结下。

     //查找需要遍历文件夹的目录
     NSString *kDocumentsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES).firstObject;
     NSFileManager *fm = [NSFileManager defaultManager];
    [fm createDirectoryAtPath: [kDocumentsPath stringByAppendingPathComponent:@"localFile"] withIntermediateDirectories:YES attributes:nil error:nil];
     NSString *dir = [NSString stringWithFormat:@"%@/localFile",kDocumentsPath];
     NSDirectoryEnumerator *dirEnumerater = [fm enumeratorAtPath:dir];
     NSString *filePath = nil;
     //开始遍历文件
     while (nil != (filePath = [dirEnumerater nextObject])) {
         NSString *msgdir = [NSString stringWithFormat:@"%@/localFile/%@",kDocumentsPath,filePath];
         BOOL isDir;
         //比对文件类型，删除不相关类型的文件
         if ([fm fileExistsAtPath:msgdir isDirectory:&isDir]) {
             if (!isDir) {
                 if ([[filePath lastPathComponent] isEqualToString:@".DS_Store"]) {
                     continue;
                 }
                 if ([[filePath lastPathComponent] isEqualToString:@"index.htm"]) {
                     continue;
                 }
                 if ([[filePath lastPathComponent] isEqualToString:@"index.html"]) {
                     continue;
                 }

                 NSString *fileNameStr = [filePath lastPathComponent];
                 NSString *filePath = msgdir;
                 //文件修改时间
                 NSDictionary *attributes = [fm attributesOfItemAtPath:msgdir error:nil];
                 NSDate *theModifiDate;
                 if ((theModifiDate = [attributes objectForKey:NSFileModificationDate])) {
                     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
                     [formatter setDateFormat:@"yyyy.MM.dd  HH:mm"];
                     NSString *dateStr = [formatter stringFromDate:theModifiDate];
                     NSFileManager* manager = [NSFileManager defaultManager];
                     long long fileSize;
                     if ([manager fileExistsAtPath:filePath]){
                         fileSize = [[manager attributesOfItemAtPath:filePath error:nil] fileSize];
                     }
                     NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:fileNameStr,@"name",filePath,@"path",dateStr,@"time",@(fileSize),@"size", nil];
                     [localFileArr addObject:dic];
 //                     NSLog(@"\n-----文件名%@\n_______文件路径%@\n======修改时间%@\n-=-=-=-大小  %lld",fileNameStr,filePath,dateStr,fileSize);

                 }
             }
         }
     }