MKDirectionsRequest Class Reference

Overview

The MKDirectionsRequest class is used by apps that are capable of displaying turn-based directions to the user. When the Maps app sends a directions-related URL to your app, you use this class to decode the URL contents and access the routing data. You then use that data to compute the actual route and display the results to the user.

Upon receiving a URL in your app delegate’s application:openURL:sourceApplication:annotation: method, you can use the isDirectionsRequestURL: method of this class to determine if the URL is related to routing directions. If it is, create an instance of this class using the provided URL and extract the map items associated with the start and end points. You can then use those points to begin your route planning.

To provide routing directions, apps must include special keys in their Info.plist file and be able to handle URLs sent to it by the Maps app. These keys indicate a special URL type that your app must be prepared to handle. For information about how to implement this support, see Location Awareness Programming Guide.