I read around SO and did Google this a fair bit but I wasn't able to find an answer to my problem...
I have an NSDictionary
which is returning NSCFString's
and what I need is an NSString so that I can use its doubleValue function. I can't for the life of me figure out how to turn my NSCFString
's into NSString
s. I've tried the following with no success:
NSString* lng_coord = (NSString*)[dict objectForKey:key];
if ([lng_coord class] == [NSString class])
NSLog(@"lng coord is an exact match with NSString class");
else {
NSLog(@"lng coord doesn't match NSString class");
NSLog(@"The class of lng_coord is %@", [[dict objectForKey:key] class]);
}
NSLog(@"%@", lng_coord);
[CelebsAnnotation setLongitude:[lng_coord doubleValue]];
And this is the output from console:
lng coord doesn't match NSString class
The class of lng_coord is NSCFString
49.2796758
NSCFString
is a private subclass of NSString
, you can just use it as one.
Because of such patterns like class clusters , you shouldn't directly compare the classes here - use -isKindOfClass:
instead:
if ([lng_coord isKindOfClass:[NSString class]]) {
// ...
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.