Location-Dependent Weather

In Chapter 7, we built a simple Weather application, but it would be much better if the application gave us weather information for our current location. We can use the Core Location framework to retrieve the user’s latitude and longitude. However, the Google Weather Service, which we used to back our Weather application, takes only city names, not latitude or longitude arguments.

There are several ways around this problem. If you were developing on a platform that didn’t support geocoding, you’d need to make use of one of the many web services that provide geocoding (see sidebar for one such service); however, with the arrival of iOS 5, Apple has provided native support for both forward and reverse geocoding.