列出指定文件夹的文件

 1         let fileManager = FileManager.default()
 2         
 3         let urlArray = fileManager.urlsForDirectory(FileManager.SearchPathDirectory.userDirectory, inDomains: FileManager.SearchPathDomainMask.allDomainsMask)
 4         
 5         for url in urlArray {
 6             print("url = \(url)")
 7             
 8             let resKeys = [URLResourceKey.nameKey, URLResourceKey.isDirectoryKey]
 9             
10             let resKeysStr = [URLResourceKey.nameKey.rawValue, URLResourceKey.isDirectoryKey.rawValue]
11             
12             let dirEnumerator  = fileManager.enumerator(at: url, includingPropertiesForKeys: resKeysStr, options: [.skipsHiddenFiles,], errorHandler: nil)!
13 
14             for case let fileUrl as NSURL in dirEnumerator {
15                 guard let resValues = try? fileUrl.resourceValues(forKeys: resKeys),
16                     let isDirectory = resValues[URLResourceKey.isDirectoryKey] as? Bool,
17                     let name = resValues[URLResourceKey.nameKey] as? String
18                     else {
19                         continue
20                 }
21                 
22                 if isDirectory {
23                     dirEnumerator.skipDescendants()
24                     print("dir name is : \(name)")
25                 } else {
26                     print("file name is : \(name)")
27                 }
28             }
29 
30         }