如何使用 URLForDirectory 创建子目录？

Question

这是我现在拥有的：

let path = try! NSFileManager.defaultManager().URLForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomain: NSSearchPathDomainMask.UserDomainMask, appropriateForURL: nil, create: true)

这是 print(path) 的输出：

file:///Users/kuna/Library/Developer/CoreSimulator/Devices/92BD140D-5C14-43C4-80D6-904BB9594ED6/data/Containers/Data/Application/CD9B3821-C536-4B46-B838-259490FD008E/Documents/

在该目录中，我需要创建 images 子目录。

我应该执行什么代码来实现它？

文档说 apriopriateForURL:

The name of a directory inside of which you want to create a unique temporary directory for autosaving documents or some other use.

Answer 1

未使用参数 appropriateForURL 为目录参数传递 .DocumentDirectory。

以传统方式进行：

let fileManager = NSFileManager.defaultManager()
do {
  let documentURL = try fileManager.URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
  let imageDirectoryURL = documentURL.URLByAppendingPathComponent("images")
  try fileManager.createDirectoryAtURL(imageDirectoryURL, withIntermediateDirectories: false, attributes: nil)
} catch let error as NSError {
  if error.code == 516 {
    print("The directory already exists")
  } else {
    print(error)
  }
}

Answer 2

let path = try! NSFileManager.defaultManager().URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
let imageURL = path?.URLByAppendingPathComponent("images")
try! NSFileManager.defaultManager().createDirectoryAtURL(imageURL!, withIntermediateDirectories: true, attributes: nil)

如何使用 URLForDirectory 创建子目录？

How to create a subdirectory using URLForDirectory?

nsfilemanager

ios

swift