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objective-cmethod-swizzling

How to swizzle methods with identical names (NSNotificationCenter postNotificationName)?

I am fairly new to method swizzling, and I'd like to use it to troubleshoot a problem I am having that is likely the result of an errant call to NSNotificationCenter. To do this I want to swizzle to log out each call to NSNotificationCenter's postNotification methods. The problem I have is that there are two methods with the same beginning of their name (here are their would-be swizzled implementations):

- (void) xxx_postNotificationName:(nonnull NSString *)notiifcationName object:(nullable id) obj {
    [self xxx_postNotificationName:notiifcationName object:obj];
}

- (void) xxx_postNotificationName:(nonnull NSString *)notificatioName object:(nullable id)obj userInfo:(nullable NSDictionary *)userInfo {
    [self xxx_postNotificationName:notificatioName object:obj userInfo:userInfo];
}

How can I identify these as separate selectors with a call like the following?

SEL originalSelector = ...

Won't they both have the form?

SEL originalSelector = @selector(postNotificationName:)

What am I missing?

Solution

  • No. The names of the methods are postNotificationName:object: and postNotificationName:object:userInfo:, so they are not the same.