Question

I am trying to set the action for a UIBarButtonItem I have in my MainWindow.xib. I keep going round and round and I’m not getting anywhere. My controller hierarchy is as follows:

UITabBarController
    UITabBar
    UINavigationController
        UINavigationBar
        UIViewController
            UINavigationItem
                UIBarButtonItem // THIS
        UITabBarItem

How can I set the action to it? I see a “selector” option in IB, but I’m not sure how to set it.

Answer 1

So, based on your comment answer, you’ll have to use the targetand action properties.

Target is the object that will receive the action.
Action is a selector (a method), from the target object.

myBarButtonItem.target = self;
myBarButtonItem.action = @selector( myMethod: );

Remember action method must have the following signature:

- ( IBAction )myMethod: ( id )sender;

The sender object will be the object that triggered the action, in your case the UIBarButtonItem.