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I'm new to iOS programming and am creating an app with several viewControllers. One of the viewControllers is a settings tab and I'd like to store a few variables so that I can use it across the controllers. Is there a standard way of doing this? I'm currently looking into NSUserDefaults but any design patterns out there would be appreciated.

locoboy
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  • I don't simply want to pass information - i also want to store it. – locoboy Oct 27 '13 at 15:55
  • CoreData is also an option and I personally think its a must know especially if you find yourself needing to store structured data. Plus, it's a very elegant solution to data storage and handling once you get the hang of it. – Jonathan Nov 03 '13 at 17:06

2 Answers2

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1. With Storyboards - 

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{
    if ([segue.identifier isEqualToString:@"xyzView"]) 
    {
        MyViewController *destViewController = segue.destinationViewController;
        destViewController.objectPassedFromPrevViewController = dataToBePassedToNextViewController
    }
}

2. With Navigation Controller - 

DestinationViewController *destinationController = [[DestinationViewController alloc] init];
destinationController.objectPassedFromPrevViewController = dataToBePassedToNextViewController;
[self.navigationController pushViewController:destinationController animated:YES];

3. While Adding Subview -

DestinationViewController *destinationController = [[DestinationViewController alloc] init];
destinationController.objectPassedFromPrevViewController = dataToBePassedToNextViewController;
[self.view addSubview:destinationController.view];
Aditya Deshmane
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0

Your inclination to use NSUserDefaults is a good one. Its made for storing and retrieving user settings and preferences for your app.

Jonathan Arbogast
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