Cocoa - Strings as arguments

I need to pass a string as an argument but I dont know how..Help?

-(void)sendSMS: (int) number:(NSString)carrier;

That says objects cant be used as p开发者_如何学Goarameters.

You should be using NSString* (notice the *) - what you want to be passing around is a pointer to an NSString object.

Try this (this naming convention is also much more Objective-c like):

-(void)sendSMStoNumber:(int)number withCarrier:(NSString*)carrier;

[myObject sendSMStoNumber:3 withCarrier:@"AT&T"];

Side Note, I'd recommend having your number variable be an NSString* as well, 10 digit numbers being what you're probably passing for a phone number and all, but I really don't know anything about what you're implementing and how.

You were missing the pointer * in there:

-(void)sendSMS: (int) number:(NSString *)carrier;

That method is screwed up in a few ways. First, you can't pass a plain NSString — objects are always referenced through pointers. You also don't have a name for the first parameter, and the carrier argument is labeled as number:. I think you probably meant something like - (void)sendSMS:(NSInteger)number carrier:(NSString *)carrier.

(But even that is not really ideal if the number argument is supposed to represent a phone number. Phone numbers can start with a zero, while integers cannot.)