Objective-C: How to access methods in other classes

Question

I have what I know is a simple question, but after many searches in books and on the Internet, I can\'t seem to come up with a solution. I have a standard iPhone project th

Answer 1

You should probably take a look at one of the many Objective C tutorials, but the direct answer to your question is that you have not allocated and initialised an instance of your object. The code should look like:

utils = [[Utils alloc] init];
[utils myMethod];

Answer 2

You just need to create the actual object.

Your implementation only defines a pointer to an Util object but it still points to nil.

utils = [[Util alloc] init];

An alternative is to create static methods by replacing - by + in the method prefix.

[Util myMethod];