Adding annotations to a map view

In Chapter 11, Finishing Up Your User Interface, you added a map view to the Map screen. In previous sections, you added the MapLocations.plist file to your project and created the RestaurantItem and MapDataManager classes. Remember the MVC design pattern? At this point, you have created the views and models for the Map screen, so all you need now is the view controller.

The view controller will be responsible for the following tasks:

• Adding RestaurantItem instances, which conform to the MKAnnotation protocol, to the map view.
• For RestaurantItem instances within the region displayed in the map view, provide MKAnnotationView instances requested by the map view.
• Provide custom MKAnnotationView instances that display a callout bubble containing a button when tapped, and present the Restaurant Detail screen when the button is tapped.

You'll start by creating the MapViewController class as the view controller for the Map screen...