The iOS utilizes several hardware and software technologies to allow you to locate it in the world, tell you which way you're traveling, and know which way the phone is pointing. The underlying technologies are fairly complex, but Apple abstracts most of this complexity away and gives us an easy API called
CoreLocation to get location and heading information.
In this chapter, we're going to look at working with the location features in the iOS via the CoreLocation API.
All the code in this chapter is taken from the
Example_CoreLocation companion code and application. While this example is simple, the application possibilities for this data are endless. For example, you could write an application that computes ...