ios - programming - stringByAppendingPathComponent no está disponible

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Question

Mi aplicación comparte una foto en Instagram, para hacer esto primero la guarda en un directorio temporal:

let writePath = NSTemporaryDirectory().stringByAppendingPathComponent("instagram.igo")

Estaba trabajando en Swift 1.2 , pero no funciona en Swift 2.0 .

El mensaje de error dado es:

stringByAppendingPathComponent no está disponible: use URLByAppendingPathComponent en NSURL en su lugar.

Answer 1

En su lugar, puede usar URLByAppendingPathComponent (). Tenga en cuenta que debe recortar la cadena de ruta para eliminar el prefijo "file: //":

let uniqueFileName = NSUUID().UUIDString
let documentsDirectory = getDocumentsDirectoryURL()
    if let path = documentsDirectory?.URLByAppendingPathComponent(uniqueFileName) {
        var pathString = path.absoluteString
        pathString = imagePathString.stringByTrimmingCharactersInSet(NSCharacterSet(charactersInString: "file://"))
}

func getDocumentsDirectoryURL() -> NSURL? {
    let fileManager = NSFileManager()
    if let docsDirectory = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).first {
        return docsDirectory
    }
    return nil
}

Answer 2

Está funcionando para NSString por lo que puede usarlo así:

extension String {
    func stringByAppendingPathComponent(path: String) -> String {
        let nsSt = self as NSString
        return nsSt.stringByAppendingPathComponent(path)
    }
}

Ahora puede usar esta extensión que convertirá su String a NSString primero y luego realizará la operación.

Y tu código será:

let writePath = NSTemporaryDirectory().stringByAppendingPathComponent("instagram.igo")

Aquí hay algunos otros métodos de uso:

extension String {  

    var lastPathComponent: String {  
        return (self as NSString).lastPathComponent  
    }  
    var pathExtension: String {  
        return (self as NSString).pathExtension  
    }  
    var stringByDeletingLastPathComponent: String {  
        return (self as NSString).stringByDeletingLastPathComponent  
    }  
    var stringByDeletingPathExtension: String {  
        return (self as NSString).stringByDeletingPathExtension  
    }  
    var pathComponents: [String] {  
        return (self as NSString).pathComponents  
    }  
    func stringByAppendingPathComponent(path: String) -> String {  
        let nsSt = self as NSString  
        return nsSt.stringByAppendingPathComponent(path)  
    }  
    func stringByAppendingPathExtension(ext: String) -> String? {  
        let nsSt = self as NSString  
        return nsSt.stringByAppendingPathExtension(ext)  
    }  
}

Referencia desde HERE .

Para swift 3.0:

extension String {
    func stringByAppendingPathComponent1(path: String) -> String {
        let nsSt = self as NSString
        return nsSt.appendingPathComponent(path)
    }
}

let writePath = NSTemporaryDirectory().stringByAppendingPathComponent(path: "instagram.igo")


extension String {

    var lastPathComponent: String {
        return (self as NSString).lastPathComponent
    }
    var pathExtension: String {
        return (self as NSString).pathExtension
    }
    var stringByDeletingLastPathComponent: String {
        return (self as NSString).deletingLastPathComponent
    }
    var stringByDeletingPathExtension: String {
        return (self as NSString).deletingPathExtension
    }
    var pathComponents: [String] {
        return (self as NSString).pathComponents
    }
    func stringByAppendingPathComponent(path: String) -> String {
        let nsSt = self as NSString
        return nsSt.appendingPathComponent(path)
    }
    func stringByAppendingPathExtension(ext: String) -> String? {
        let nsSt = self as NSString
        return nsSt.appendingPathExtension(ext)
    }
}

Answer 3

Haz lo siguiente:

(("/(fileName)" as NSString).lastPathComponent as NSString).stringByDeletingPathExtension

Answer 4

Para swift 2.0

// Get the documents Directory
    func documentsDirectory() -> String {
        let documentsFolderPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)[0]
        return documentsFolderPath
    }

// Get path for a file in the directory
func fileInDocumentsDirectory(filename: String) -> String {

    let writePath = (documentsDirectory() as NSString).stringByAppendingPathComponent("Mobile")

    if (!NSFileManager.defaultManager().fileExistsAtPath(writePath)) {
        do {
            try NSFileManager.defaultManager().createDirectoryAtPath(writePath, withIntermediateDirectories: false, attributes: nil) }
            catch let error as NSError {
                print(error.localizedDescription);
        }
    }
    return (writePath as NSString).stringByAppendingPathComponent(filename)
}

//# MARK: - Save Image in Doc dir
func saveImage (image: UIImage, path: String ) -> Bool{

    let pngImageData = UIImagePNGRepresentation(image)
    //        let jpgImageData = UIImageJPEGRepresentation(image, 1.0)   // if you want to save as JPEG
    let result = pngImageData!.writeToFile(path, atomically: true)

    print("/(result)")
    print("/(path)")

    return result

}

Answer 5

Parece que el método stringByAppendingPathComponent se elimina en Swift 2.0, por lo que lo que sugiere el mensaje de error es usar:

let writePath = NSURL(fileURLWithPath: NSTemporaryDirectory()).URLByAppendingPathComponent("instagram.igo")

Actualizar:

URLByAppendingPathComponent() ha sido reemplazado por appendingPathComponent() así que en su lugar:

let writePath = NSURL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("instagram.igo")

Answer 6

Si es aceptable usar métodos de ruta NSString (en lugar de métodos URL de String ), es mucho más fácil extender String con una propiedad calculada o un método que devuelva su valor como NSString (en lugar de duplicar los métodos deseados en String extensión String ):

extension String
{
    var ns: NSString { return self as NSString }
}

y entonces:

swiftStringPath.ns.appendingPathComponent("whateva")
swiftStringPath.ns.deletingPathExtension

Answer 7

Simplemente envuelva su cadena como NSString .

let writePath = (NSTemporaryDirectory() as NSString).stringByAppendingPathComponent("instagram.igo")

Answer 8

Swift 4

extension String {

    var lastPathComponent: String {
        return (self as NSString).lastPathComponent
    }
    var pathExtension: String {
        return (self as NSString).pathExtension
    }
    var stringByDeletingLastPathComponent: String {
        return (self as NSString).deletingLastPathComponent
    }
    var stringByDeletingPathExtension: String {
        return (self as NSString).deletingPathExtension
    }
    var pathComponents: [String] {
        return (self as NSString).pathComponents
    }
    func stringByAppendingPathComponent(path: String) -> String {
        let nsSt = self as NSString
        return nsSt.appendingPathComponent(path)
    }
    func stringByAppendingPathExtension(ext: String) -> String? {
        let nsSt = self as NSString
        return nsSt.appendingPathExtension(ext)
    }
}

Answer 9

para Swift 3 :

let writePath = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent(directoryname).path

o mejor cree esta extensión:

extension String {
    func appendingPathComponent(_ string: String) -> String {
        return URL(fileURLWithPath: self).appendingPathComponent(string).path
    }
}

uso:

 let writePath = NSTemporaryDirectory().appendingPathComponent(directoryname)

Answer 10

Solución Swift 3:

Aquí hay una función para obtener la ruta del directorio de documentos

    func getDocumentsDirectory() -> URL {
         let paths = FileManager.default.urls(for: .documentDirectory, in:.userDomainMask)
         let documentsDirectory = paths[0]
         return documentsDirectory
     }

Cómo utilizar:

    getDocumentsDirectory.appendingPathComponent("google.com")

Resultado:

    file:///var/folders/w1/3rcp2fvs1qv43hfsh5876s0h0000gn/T/com.apple.dt.Xcode.pg/containers/com.apple.dt.playground.stub.iOS_Simulator.MyPlayground-7CF9F706-509C-4D4C-997E-AB8FE9E4A6EA/Documents/google.com