objective-c – 是否可以在iOS中对一个目录进行全局操作并将结果缓存在操作系统中？

#include <glob.h> 

+ (NSArray*) arrayWithFilesmatchingPattern: (NSString*) pattern inDirectory: (NSString*) directory { 
  NSMutableArray* files = [NSMutableArray array];
  glob_t gt;
  NSString* globPathComponent = [NSString StringWithFormat: @"/%@",pattern];
  NSString* expandedDirectory = [directory StringByExpandingTildeInPath];
  const char* fullPattern = [[expandedDirectory StringByAppendingPathComponent: globPathComponent] UTF8String];
  if (glob(fullPattern,NULL,&gt) == 0) {
      int i;
      for (i=0; i<gt.gl_matchc; i++) {
          size_t len = strlen(gt.gl_pathv[i]);
          NSString* filename = [[NSFileManager defaultManager] StringWithFileSystemRepresentation: gt.gl_pathv[i] length: len];
          [files addObject: filename];
      }
  }
  globfree(&gt);
  return [NSArray arrayWithArray: files];
}