ios - Cómo crear un directorio usando el código Swift(NSFileManager)

objective-c nsdocumentdirectory

Question

Tengo problemas para convertir el código Objective-C para crear un directorio para Swift.

C objetivo:

 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];

Answer 1

Solución más simple:

"~/Desktop/demo".expand.createDir()//Now you have a folder named demo on your desk
extension String{
func createDir(_ path:String){
do {
try FileManager.default.createDirectory(atPath: path, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
NSLog("Unable to create directory /(error.debugDescription)")
}
}
var expand:String {return NSString(string: self).expandingTildeInPath}
}

Answer 2

La respuesta aceptada ya no se compila, ya que la línea con appendingPathComponent genera un error.

Aquí hay una versión de Swift 3 que compila:

fileprivate func createDir(dirName: String) {
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let dataPath = documentsDirectory.appendingPathComponent(dirName)
do {
try FileManager.default.createDirectory(atPath: dataPath.absoluteString, withIntermediateDirectories: false, attributes: nil)
} catch let error as NSError {
printError("Error creating directory: /(error.localizedDescription)")
}
}

Answer 3

Ninguna de las respuestas de @Kampai y @ Crashalot funcionó para mí.

The .absoluteString crea una url con el prefijo file: // y causa una excepción al crear el directorio. En cambio, he usado el método .path .

El código fijo para Swift 3

let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let dataPath = documentsDirectory.appendingPathComponent("MyFolder")
do {
try FileManager.default.createDirectory(atPath: dataPath.path, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
print("Error creating directory: /(error.localizedDescription)")
}

Answer 4

Para otros desarrolladores, voy a dejar esto aquí, ya que puede ayudar a alguien como yo a buscar una forma de averiguar dónde se está creando la carpeta.

let paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true) as NSArray
let documentsDir = paths.firstObject as String
println("Path to the Documents directory/n/(documentsDir)")

Answer 5

Swift 4

// DB Directory and Path
lazy var applicationDocumentsDirectory: URL = {
let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentDirectoryURL = urls[urls.count - 1] as URL
let dbDirectoryURL = documentDirectoryURL.appendingPathComponent("DB")
if FileManager.default.fileExists(atPath: dbDirectoryURL.path) == false{
do{
try FileManager.default.createDirectory(at: dbDirectoryURL, withIntermediateDirectories: false, attributes: nil)
}catch{
}
}
return dbDirectoryURL
}()

Answer 6

Swift 4.0 editar

let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
let documentsDirectory: AnyObject = paths[0] as AnyObject
let dataPath = documentsDirectory.appendingPathComponent("MyFolder")!
do {
try FileManager.default.createDirectory(atPath: dataPath.absoluteString, withIntermediateDirectories: false, attributes: nil)
} catch let error as NSError {
print(error.localizedDescription);
}

Editar Swift 3.0

let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
let documentsDirectory: AnyObject = paths[0]
let dataPath = documentsDirectory.appendingPathComponent("MyFolder")!
do {
try FileManager.default.createDirectory(atPath: dataPath.absoluteString, withIntermediateDirectories: false, attributes: nil)
} catch let error as NSError {
print(error.localizedDescription);
}

Editar swift 2.1

Puede crear un directorio usando el siguiente método:

let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
let documentsDirectory: AnyObject = paths[0]
let dataPath = documentsDirectory.stringByAppendingPathComponent("MyFolder")
do {
try NSFileManager.defaultManager().createDirectoryAtPath(dataPath, withIntermediateDirectories: false, attributes: nil)
} catch let error as NSError {
print(error.localizedDescription);
}

Answer 7

Swift 4:

NSSearchPathForDirectoriesInDomains devuelve una matriz de cadenas, no de URL.

anexarPathComponent a string hace que la aplicación se cuelgue con el mensaje - [NSPathStore2 URLByAppendingPathComponent:]: selector no reconocido enviado a la instancia

Aquí hay una versión de Swift 4 que compila:

 let paths = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
if let pathURL = URL.init(string: paths[0]) {
let dataURL = pathURL.appendingPathComponent("MyFolder")
do {
try FileManager.default.createDirectory(atPath: dataURL.absoluteString, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
print(error.localizedDescription);
}
}
else {
print("Error in getting path URL");
}