Activating the Settings Interface

Now that the Settings screen is set up with a Picker View and a switch, it’s time to work on storing the data for the user preferences. For the settings to work consistently, they should be set to some default values when the app first launches. The place to do that is in the app delegate, so open LMAAppDelegate.m and add the code in Listing 11.11 to the application:didFinishLaunchingWithOptions: method.

Listing 11.11 Saving Default Settings

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- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    //Set default settings    NSUserDefaults *settings = [NSUserDefaults standardUserDefaults];         //1    if([settings objectForKey ...

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