Easy way to localize independent of user setting

Localize.m

// The main localization class that does the hard work
-(NSString *) localized:(NSString *) key
{
   // langCode should be set as a global variable somewhere
  NSString *path = [[NSBundle mainBundle] pathForResource:langCode ofType:@"lproj"];
	
  NSBundle* languageBundle = [NSBundle bundleWithPath:path];
  return [languageBundle localizedStringForKey:key value:@"" table:nil];;
}

// Assuming you have this function in a global class called utils, 
// call this function with the following code (for example to output the word Settings
NSLog( [utils localized:@"Settings"] );

// To change the language
[[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:langCode, nil] forKey:@"AppleLanguages"];