NSURL with special characters (åäö)

Question

I have some images on my server, named with special characters (å,ä,ö). I can't figure out how to convert the NSUrl to get them:

    NSString *urlString = [NSString stringWithFormat: @".../Images/%@Image.png", playerName]; 

    NSURL *url = [NSURL URLWithString: [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

    NSLog(@"url:%@", url);

    //Get the image and assign it to the player
    NSData *imageData = [NSData dataWithContentsOfURL:url];
    UIImage *image = [UIImage imageWithData:imageData];

The log in the above example (if "playerName" = åäö):

.../Images/%C3%A5%C3%A4%C3%B6Image.png

but I need it to be:

.../Images/åäöImage.png

I tried different (stringByAddingPercentEscapesUsingEncoding) and the code below without success:

- (NSString *)URLEncodingOfString:(NSString *)s
{
return (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes
(kCFAllocatorDefault, (__bridge CFStringRef)s, NULL, NULL,
 kCFStringEncodingISOLatin1);
 }

Any advice is very appreciated, Thanks in advance

Answer 1

I think it'll depend entirely on what encoding the web server is using.

Since ISO-Latin-1 doesn't seem, from your test, to work, you might try replacing kCFStringEncodingISOLatin1 with kCFStringEncodingUTF8.

Answer 2

Try this :

NSString * encodedString = (NSString *)CFURLCreateStringByAddingPercentEscapes(
    NULL,
    (CFStringRef)unencodedString,
    NULL,
    (CFStringRef)@"!*'();:@&=+$,/?%#[]",
    kCFStringEncodingISOLatin1 );

Unfortunately, the stringByAddingPercentEscapesUsingEncoding method doesn't encode all special characters properly.

Source: How to really URL encode an NSString in Objective-C, iPhone, etc.

EDIT:

Have you tried

NSString *urlString = [NSString stringWithFormat: @".../Images/%@Image.png", playerName]; 

NSURL *url = [NSURL URLWithString: [urlString stringByAddingPercentEscapesUsingEncoding:NSISOLatin1StringEncoding]];

Note the NSISOLatin1StringEncoding instead of NSUTF8StringEncoding

Answer 3

Try This

To create NSURL

 NSURL *url = [[NSURL alloc]initWithString:stringURL];

The stringURL is the string representing URL. While logging, try this

 NSLog("%@",[url absoluteString]);

Answer 4

I ran into this issue due to "%C3%89%C3%89" which converts to ÉÉ within a url I was attempting to load. This seemed to convert the url into the desired format to allow me to download the file from the URL.

NSURL *url = [NSURL URLWithString:[[imageURL stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];