How to Use Special Character in Nsurl

How to use special character in NSURL?

Swift 2

let original = "http://www.geonames.org/search.html?q=Aïn+Béïda+Algeria&country="
if let encodedString = original.stringByAddingPercentEncodingWithAllowedCharacters(
    NSCharacterSet.URLFragmentAllowedCharacterSet()),
    url = NSURL(string: encodedString) 
{
    print(url)
}

Encoded URL is now:

"http://www.geonames.org/search.html?q=A%C3%AFn+B%C3%A9%C3%AFda+Algeria&country="

and is compatible with NSURLSession.

Swift 3

let original = "http://www.geonames.org/search.html?q=Aïn+Béïda+Algeria&country="
if let encoded = original.addingPercentEncoding(withAllowedCharacters: .urlFragmentAllowed),
    let url = URL(string: encoded)
{
    print(url)
}

How to use special characters \n in URL

strUrl = strUrl.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)!

let url = URL.init(string: strUrl)

let requestURL = URLRequest(url: url!)

• You need to add addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed) method to allow URL Query.

deal with special characters in NSURL

Your URL is malformed. Right now you have:

http:\\www.school-link.net\\uploads\\%@

Those backslashes should instead be forward slashes. Ex:

http://www.school-link.net/uploads/%@

Now you can append image_url to the URL, and presuming image_url doesn't cause the URL to be malformed, your request will go through.

NSUrl swift 2 with greek and other special characters

For encode α in your url

let str = "α"
let url = str.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())

Now decode url string like this

let orgStr = url?.stringByRemovingPercentEncoding
print(orgStr)

How to handle special characters in url as parameter values?

Use URLEncoder to encode your URL string with special characters.When encoding a String, the following rules apply:

• The alphanumeric characters "a" through "z", "A" through "Z" and "0" through "9" remain the same.
• The special characters ".", "-", "*", and "_" remain the same.
• The space character " " is converted into a plus sign "+".
• All other characters are unsafe and are first converted into one or more bytes using some encoding scheme. Then each byte is represented
  
  by the 3-character string "%xy", where xy is the two-digit
  
  hexadecimal representation of the byte. The recommended encoding
  
  scheme to use is UTF-8. However, for compatibility reasons, if an
  
  encoding is not specified, then the default encoding of the platform
  
  is used.

For example using UTF-8 as the encoding scheme the string The string ü@foo-bar would get converted to The+string+%C3%BC%40foo-bar because in UTF-8 the character ü is encoded as two bytes C3 (hex) and BC (hex), and the character @ is encoded as one byte 40 (hex).

---

Related Topics