How do I trigger a void function with another button?

Question

I have a -(void)assignCats method in my test project, and I need to trigger the code in it from two seperate buttons. I know how to use IBAction, but how do I make two IBActions trigger the same (void)?

Answer 1

Just call your method from within the IBAction methods.

-(IBAction)pointAtCats:(id)sender {
   [self assignCats];
}

-(IBAction)laughAtCats:(id)sender {
   [self assignCats];
}

IBAction is also actually a void return typedef . It is simply used by Xcode to know what is available for use in interface connections.

Answer 2

Just hook them both up to the same action. IBAction is just defined to be void , so you could just change the assignCats signature without changing any other program behaviour. Alternately, write a new action that calls assignCats from its implementation.