Question

I need to calculate from pricing based on some business rules and I do not want to duplicate this across several ViewControllers. Coming from a .Net world I would use a static method on a class to do this. What is a similar solution in Objective-C?

Answer 1

A class method most likely – ie. a function in the interface declared with a + at the start.

@implementation PriceCalculator

+ (float)calculatePrice:(float)param1 {
    return param1*4.0;
}

@end

(and a similar @interface in a header file)

which is called like so:

price = [PriceCalculator calculatePrice:3.0];