19Settings
Many applications include preferences that users can set. Whether users are picking the size of the text or storing usernames, there is a standard way of enabling iOS application preferences. In this chapter, you will use the NSUserDefaults class to add a preference to your Whereami application. This preference will specify the map type of the MKMapView.
Updating Whereami
Every MKMapView has a mapType property that specifies whether it shows roads, satellite imagery, or both. You will allow the user to change this property by adding a UISegmentedControl that toggles the map type. The user’s choice will be saved as a preference for the next time the application is launched.
Open the Whereami project. Then open MainWindow.xib and add ...
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