[iPhone] Receiving DefaultValue from .plist

- (void)applicationDidFinishLaunching:(UIApplication *)application
{
 [window addSubview:[navigationController view]];
 
 NSString *testValue = [[NSUserDefaults standardUserDefaults] stringForKey:kFirstNameKey];
 if (testValue == nil)
 {
 // no default values have been set, create them here based on what's in our Settings bundle info
 //
 NSString *pathStr = [[NSBundle mainBundle] bundlePath];
 NSString *settingsBundlePath = [pathStr stringByAppendingPathComponent:@"Settings.bundle"];
 NSString *finalPath = [settingsBundlePath stringByAppendingPathComponent:@"Root.plist"];
 NSDictionary *settingsDict = [NSDictionary dictionaryWithContentsOfFile:finalPath];
 NSArray *prefSpecifierArray = [settingsDict objectForKey:@"PreferenceSpecifiers"];
 NSString *firstNameDefault;
 NSString *lastNameDefault;
 NSNumber *nameColorDefault;
 NSNumber *backgroundColorDefault;
 
 NSDictionary *prefItem;
 for (prefItem in prefSpecifierArray)
 {
 NSString *keyValueStr = [prefItem objectForKey:@"Key"];
 id defaultValue = [prefItem objectForKey:@"DefaultValue"];
 
 if ([keyValueStr isEqualToString:kFirstNameKey])
 {
 firstNameDefault = defaultValue;
 }
 else if ([keyValueStr isEqualToString:kLastNameKey])
 {
 lastNameDefault = defaultValue;
 }
 else if ([keyValueStr isEqualToString:kNameColorKey])
 {
 nameColorDefault = defaultValue;
 }
 else if ([keyValueStr isEqualToString:kBackgroundColorKey])
 {
 backgroundColorDefault = defaultValue;
 }
 }
 // since no default values have been set (i.e. no preferences file created), create it here
 NSDictionary *appDefaults = [NSDictionary dictionaryWithObjectsAndKeys:
 firstNameDefault, kFirstNameKey,
 lastNameDefault, kLastNameKey,
 [NSNumber numberWithInt:1], kNameColorKey,
 [NSNumber numberWithInt:1], kBackgroundColorKey,
 nil];
 
 [[NSUserDefaults standardUserDefaults] registerDefaults:appDefaults];
 [[NSUserDefaults standardUserDefaults] synchronize];
 }
 
 // we're ready to do, so lastly set the key preference values
 firstName = [[NSUserDefaults standardUserDefaults] stringForKey:kFirstNameKey];
 lastName = [[NSUserDefaults standardUserDefaults] stringForKey:kLastNameKey];
 textColor = [[NSUserDefaults standardUserDefaults] integerForKey:kNameColorKey];
 backgroundColor = [[NSUserDefaults standardUserDefaults] integerForKey:kBackgroundColorKey];
}