Possible Duplicate:
Are selectors in objective - c just another way to send a message to an object?
I understand how the @selector syntax works, but can't figure out when they are useful. For example let's say I have class Person;
Person.h
@interface Person : NSObject
-(void)printPersonName;
@end
Person.m
@implementation Person
-(id)init
{
if (self = [super init]) {
[self performSelector:@selector(printPersonName)];
[self printPersonName];
}
return self;
}
-(void)printPersonName
{
NSLog(@"My name is Steve");
}
@end
This snippet of code do the same thing
[self performSelector:@selector(printPersonName)];
[self printPersonName];
When is @selector useful?
