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iOS 5 Recipes: A Problem-Solution Approach by Colin Francis, Shawn Grimes

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Chapter 4

Location Recipes

The Core Location framework provides a new way to provide information to applications that is relevant to where the device is geographically located. With the features of this framework, your application can accurately tell where a device is located and even what direction it is facing. There is a variety of applications that have successfully seized opportunities to utilize location-aware information, such as Facebook and Foursquare. iOS 5 continues to improve on the possibilities available and provides new features to convert human-readable locations into geographical locations.

There are three main capabilities that we will deal with in this chapter: location services, GPS, and the magnetometer. Location services ...

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