Converting URL to String and back again

Question

So I have converted an NSURL to a String  So if I println it looks like file    Users     etc   Later I want this back as an NSURL so I try and convert it back as seen below  but I lose two of the forward slashes that appear in the string version above  that in turn breaks the code as the url is invalid   Why is my conversion back to NSURL removing two forward slashes from the String I give it  and how can I convert back to the NSURL containing three forward slashes   var urlstring  String   recordingsDictionaryArray selectedRow   path   as String println  the url string     urlstring       looks like file    Users         etc var url   NSURL fileURLWithPath urlstring  println  the url     url        looks like file  Users       etc

User · Answer

Swift 3  forget about NSURL    let fileName    20-01-2017 22 47  let folderString    file    var mobile someLongPath    To make a URL out of a string   let folder  URL    Foundation URL string  folderString     Optional lt URL gt        some   file    var mobile someLongPath   If we want to add the filename  Note  that appendingPathComponent   adds the percent encoding automatically   let folderWithFilename  URL    folder  appendingPathComponent fileName     Optional lt URL gt        some   file    var mobile someLongPath 20-01-2017 2022 47   When we want to have String but without the root part  pay attention that percent encoding is removed automatically    let folderWithFilename  String    folderWithFilename path      Optional lt String gt      - some     var mobile someLongPath 20-01-2017 22 47    If we want to keep the root part we do this  but mind the percent encoding - it is not removed    let folderWithFilenameAbsoluteString  String    folderWithFilenameURL absoluteString      Optional lt String gt      - some    file    var mobile someLongPath 20-01-2017 2022 47    To manually add the percent encoding for a string   let folderWithFilenameAndEncoding  String    folderWithFilename addingPercentEncoding withAllowedCharacters  CharacterSet urlQueryAllowed       Optional lt String gt      - some     var mobile someLongPath 20-01-2017 2022 47    To remove the percent encoding   let folderWithFilenameAbsoluteStringNoEncodig  String    folderWithFilenameAbsoluteString removingPercentEncoding      Optional lt String gt      - some    file    var mobile someLongPath 20-01-2017 22 47    The percent-encoding is important because URLs for network requests need them  while URLs to file system won t always work - it depends on the actual method that uses them  The caveat here is that they may be removed or added automatically  so better debug these conversions carefully

User · Answer

fileURLWithPath   is used to convert a plain file path  e g    path to file   to an URL  Your urlString is a full URL string including the scheme  so you should use  let url   NSURL string  urlstring    to convert it back to NSURL  Example   let urlstring    file    Users Me Desktop Doc txt  let url   NSURL string  urlstring  println  the url     url        the url   file    Users Me Desktop Doc txt

User · Answer

In Swift 4 and Swift 3   To convert String to URL   URL string  String    or   URL init string   yourURLString     And to convert URL to String   URL absoluteString   The one below converts the  contents  of the url to string  String contentsOf  URL

User · Answer

There is a nicer way of getting the string version of the path from the NSURL in Swift   let path String   url path

User · Answer

Swift 3 version code   let urlString    file    Users Documents Book Note txt  let pathURL   URL string  urlString   print  the url       pathURL path

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Swift 5  To convert a String to a URL  let stringToURL   URL string   quot your-string quot    To convert a URL to a String  let urlToString   stringToURL  absoluteString

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NOTICE  pay attention to the url  it s optional and it can be nil  You can wrap your url in the quote to convert it to a string  You can test it in the playground  Update for Swift 5  Xcode 11    import Foundation  let urlString    http   ifconfig me     string to url let url   URL string  urlString    url to string let string      url      if you want the path without  file  schema    let string      url path

User · Answer

let url   URL string   URLSTRING HERE   let anyvar    String describing  url

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Swift 3 used with UIWebViewDelegate shouldStartLoadWith     func webView   webView  UIWebView  shouldStartLoadWith request  URLRequest  navigationType  UIWebViewNavigationType  - gt  Bool        let urlPath  String    request url  absoluteString       print urlPath      if urlPath characters last                  return false      else          return true

User · Answer

2020   SWIFT 5 1  From STRING to URL  let url   URL fileURLWithPath   quot   Users Me Desktop Doc txt quot    From URL to STRING  let a   String describing  url            quot file     Users Me Desktop Doc txt quot  let b    quot   url  quot                           quot file     Users Me Desktop Doc txt quot  let c   url absoluteString                quot file     Users Me Desktop Doc txt quot  let d   url path                          quot  Users Me Desktop Doc txt quot    BUT value of d will be invisible due to debug process  so    THE BEST SOLUTION  let e    quot   url path  quot                      quot  Users Me Desktop Doc txt quot

[swift] Converting URL to String and back again

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