Question

I need to change a string value if it meets certain criteria, but I’m not having any luck so far. I’m not sure if it’s the input string or if I’m doing something fundamentally wrong – here’s my code:

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSMutableString *stadium = [NSMutableString stringWithString:[prefs stringForKey:@"stadiumname"]]; 

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


if([prefs stringForKey:@"stadiumname"]==@"Brighton & Hove")
{
    [stadium setString:@"Hove"];
}

if([prefs stringForKey:@"stadiumname"]==@"Monmore Green")
{
    [stadium setString:@"Monmore"];
}

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

In the NSLog output on both sides I still get “Brighton & Hove” or “Monmore Green”, rather than just “Hove” or “Monmore” as I was expecting. I’ve tried changing the input field to allow for possible encoding by doing:

NSMutableString *stadium = [NSMutableString stringWithString:[[prefs stringForKey:@"stadiumname"] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 

but that makes no difference. Would NSLog show up any encoding in the string anyway?

I just need to be able to use the shortened string once it comes out the other side, but so far no luck.

Can anyone enlighten me?

Answer 1

it’s because of how you compare the string, so instead of

if([prefs stringForKey:@"stadiumname"]==@"Brighton & Hove")

use

if([[prefs stringForKey:@"stadiumname"] isEqualToString:@"Brighton & Hove"])