How do I make the “Add” button on a navigation bar do something?

Question

So I\'ve taken a few years off since my last iPhone programming adventure, and I\'ve apparently forgotten most of what I learned last time. Plus XCode looks totally different, s

Answer 1

addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addItem:)];

self.navigationItem.rightBarButtonItem = addButton;

Then you have to add a void method called "addItem", in which you have to define what do you want the Add button to do(in your case an actionsheet).