URLWithString: returns nil

Question

it may be very easy, but I don\'t seems to find out why is URLWithString: returning nil here.

//localisationName is a arbitrary string here
NSSt         


        

Answer 1

I think your accented characters are throwing things off; they won't be handled by -stringByAddingPercentEscapesUsingEncoding:.

Answer 2

UPDATE: Since stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding is deprecated now, you should use stringByAddingPercentEncodingWithAllowedCharacters

[stringURL stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

Here's the list of allowed characters set depending on your case.

+ (NSCharacterSet *)URLUserAllowedCharacterSet;
+ (NSCharacterSet *)URLPasswordAllowedCharacterSet;
+ (NSCharacterSet *)URLHostAllowedCharacterSet;
+ (NSCharacterSet *)URLPathAllowedCharacterSet;
+ (NSCharacterSet *)URLQueryAllowedCharacterSet;
+ (NSCharacterSet *)URLFragmentAllowedCharacterSet;

Reference: https://developer.apple.com/reference/foundation/nsstring/1411946-stringbyaddingpercentencodingwit