I am currently working on an application that contacts a mySQL data base using php. In my app there is a string that will be submitted to the server but obviously if the string has a space in it the app cannot load the URL. Does anyone know how to replace spaces in a URL to %20?
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iOS Deleting Characters from NSString
- Thread starter HarryWorksInc
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NSString Is Immutable
You can't change an NSString because it is immutable.
You would have to be using an NSMutableString.
NSMutableString Reference
http://developer.apple.com/mac/libr...SMutableString_Class/Reference/Reference.html
-- Kaydell
You can't change an NSString because it is immutable.
You would have to be using an NSMutableString.
NSMutableString Reference
http://developer.apple.com/mac/libr...SMutableString_Class/Reference/Reference.html
-- Kaydell
Ok, sorry i've been looking over the NSStringEncoding and if I am understanding the Class References correctly there is no string encoder for a URL or for replacing " " with "%20". Can you give an example or just the encoder?
See the post two above this one: there is not an encoding (as this is not a character encoding in that sense of the word). But there is a method to escape those characters.
Assuming the server is able to handle that encoding. Otherwise, you may want to try something more compatible.
One last thing I,v been incorporated the code
but it doesn't seem to be working. When i return the url the spaces are still spaces.
HTML:
[URL stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];Post your code.
Anyway I can guess what you are doing:
Code:
NSString *URL = @"my url with spaces";
[URL stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSLog(@"%@",URL); // Logs my url with spacesBut, as we all know, NSString is immutable. And the method returns an NSString. So the obvious usage is:
Code:
NSString *URL = @"my url with spaces";
URL = [URL stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSLog(@"%@",URL); // Logs my%20url%20with%20spacesOh, thanks I was still using an NSMutableString but once i changed it back to an NSString and it worked.
I can see how this could be confusing but using a NSMutableString does not alter the signature or semantics of the method. If NSMutableString provided a method that did the same thing in-place it would not return a NSString object...