How can I call a method in Objective-C?

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I am trying to build an iPhone app. I created a
method like this:

- (void)score {
    // some code
}

and I have tried to call it in an other method like this:

- (void)score2 {
    @selector(score);
}

But it does not work. So, how do I call a method correctly?

objective-c
8 Answers

To send an objective-c message in this instance you would do

[self score];

I suggest you read the Objective-C programming guide Objective-C Programming Guide

user_580140

I suggest you read The Objective-C Programming Language. The part about messaging is specifically what you want here, but the whole thing will help you get started. After that, maybe try doing a few tutorials to get a feel for it before you jump into making your own apps.

Chuck_507420

I think what you're trying to do is:

-(void) score2 {
    [self score];
}

The [object message] syntax is the normal way to call a method in objective-c. I think the @selector syntax is used when the method to be called needs to be determined at run-time, but I don't know objective-c well enough to give you more information on that.

Ferruccio_40860

syntax is of objective c is

returnObj = [object functionName: parameters];

Where object is the object which has the method you're calling. If you're calling it from the same object, you'll use 'self'. This tutorial might help you out in learning Obj-C.

In your case it is simply

[self score];

If you want to pass a parameter then it is like that 

- (void)score(int x) {
    // some code
}

and I have tried to call it in an other method like this:

- (void)score2 {
    [self score:x];
}
user_86600850 
use this,
[self score]; 
instead of @selector(score).
user_66599320
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