在iOS应用程序中创建文档文件夹内的文件夹

Question

我只想在我的iPhone应用程序的文档文件夹中创建新文件夹。

有人知道该怎么做吗？

感谢您的帮助！

Answer 1

我这样做，通过以下方式：

NSError *error; 
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder 
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/MyFolder"]; 

if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) 
    [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]; //Create folder 

Answer 2

我不喜欢 “[路径objectAtIndex：0]”，因为如果苹果增加了一个新的文件夹以 “A” 开始， “B” 奥得“C “，”文档“ - 文件夹不是目录中的第一个文件夹。

更好：

NSString *dataPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/MyFolder"]; 
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) 
    [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]; //Create folder 

Answer 3

我没有足够的声誉对曼尼的回答发表评论，但[路径objectAtIndex：0]是获取应用程序的文件目录的标准方式

http://developer.apple.com/library/ios/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/StandardBehaviors/StandardBehaviors.html#//apple_ref/doc/uid/TP40007072-CH4-SW6

因为NSSearchPathForDirectoriesInDomains 功能原本是为 Mac OS X，其中可能有比这些目录中的每一个更多的 ， 它比单个路径返回路径数组而不是 。在iOS中， 生成的数组应包含目录的单一路径 。清单 3-1显示了这个 函数的典型用法。

清单3-1获取路径 应用程序的Documents目录

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 

Answer 4

这工作对我很好，

NSFileManager *fm = [NSFileManager defaultManager]; 
NSArray *appSupportDir = [fm URLsForDirectory:NSDocumentsDirectory inDomains:NSUserDomainMask]; 
NSURL* dirPath = [[appSupportDir objectAtIndex:0] URLByAppendingPathComponent:@"YourFolderName"]; 

NSError* theError = nil; //error setting 
if (![fm createDirectoryAtURL:dirPath withIntermediateDirectories:YES 
          attributes:nil error:&theError]) 
{ 
    NSLog(@"not created"); 
} 

Answer 5

下面的代码创建目录可能会有帮助：

-(void) createDirectory : (NSString *) dirName { 

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; // Fetch path for document directory 
dataPath = (NSMutableString *)[documentsDirectory stringByAppendingPathComponent:dirName]; 

NSError *error; 

if (![[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error]) { 
    NSLog(@"Couldn't create directory error: %@", error); 
} 
else { 
    NSLog(@"directory created!"); 
} 

NSLog(@"dataPath : %@ ",dataPath); // Path of folder created 

} 

用法：

[self createDirectory:@"MyFolder"]; 

结果：

目录中创建！

数据路径：在/ var /移动/应用/ BD4B5566-1F11-4723-B54C-F1D0B23CBC /文档/ MyFolder中

Answer 6

夫特1.2和iOS 8

创建定制目录（名称= “MyCustomData” ）只在目录不存在的情况下。

// path to documents directory 
let documentDirectoryPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first as! String 

// create the custom folder path 
let myCustomDataDirectoryPath = documentDirectoryPath.stringByAppendingPathComponent("/MyCustomData") 

// check if directory does not exist 
if NSFileManager.defaultManager().fileExistsAtPath(myCustomDataDirectoryPath) == false { 

    // create the directory 
    var createDirectoryError: NSError? = nil 
    NSFileManager.defaultManager().createDirectoryAtPath(myCustomDataDirectoryPath, withIntermediateDirectories: false, attributes: nil, error: &createDirectoryError) 

    // handle the error, you may call an exception 
    if createDirectoryError != nil { 
     println("Handle directory creation error...") 
    } 

} 

Answer 7

的夫特2溶液：

let documentDirectoryPath: String = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first! 
if !NSFileManager.defaultManager().fileExistsAtPath(documentDirectoryPath) { 
     do { 
      try NSFileManager.defaultManager().createDirectoryAtPath(documentDirectoryPath, withIntermediateDirectories: false, attributes: nil) 

     } catch let createDirectoryError as NSError { 
      print("Error with creating directory at path: \(createDirectoryError.localizedDescription)") 
     } 

    } 

Answer 8

夫特3解决方案：

private func createImagesFolder() { 
     // path to documents directory 
     let documentDirectoryPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first 
     if let documentDirectoryPath = documentDirectoryPath { 
      // create the custom folder path 
      let imagesDirectoryPath = documentDirectoryPath.appending("/images") 
      let fileManager = FileManager.default 
      if !fileManager.fileExists(atPath: imagesDirectoryPath) { 
       do { 
        try fileManager.createDirectory(atPath: imagesDirectoryPath, 
                withIntermediateDirectories: false, 
                attributes: nil) 
       } catch { 
        print("Error creating images folder in documents dir: \(error)") 
       } 
      } 
     } 
    } 

Answer 9

夫特3.0

var error: Error? 
var paths: [Any] = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) 
var documentsDirectory: String = paths[0] as? String ?? "" 
    // Get documents folder 
var dataPath: String = URL(fileURLWithPath: documentsDirectory).appendingPathComponent("/MyFolder").absoluteString 
if !FileManager.default.fileExists(atPath: dataPath) { 
    try? FileManager.default.createDirectory(atPath: dataPath, withIntermediateDirectories: false, attributes: nil) 
} 

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