iOS Programming: The Big Nerd Ranch Guide, Second Edition

For the More Curious: The Settings Application

Every iOS device has a Settings application. Applications that register some or all of their preferences with Settings get an entry in this application where those preferences can be changed. However, most applications do not use Settings to store their preferences: why leave the application, find Settings, change a value, and then re-open the application when you could have your own built-in interface?

But, in case it’s something you want to do, here’s how. To register for an entry in Settings, you add a Settings.bundle to your application. This bundle contains a property list that has an entry for each preference you want to expose in the Settings application. (There is a template for this bundle ...