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I need to add a common method to all my view controllers no matter what type they are. I notice though that some of my viewcontrollers inherit from UIViewController and some from UITableViewControllers.
How do I write a subclass that can be used for both?
UITableViewController inherits from UIViewController, so if you want to be able to call your custom method from both, you can write a category on UIViewController and then call methods from that category in any subclass of either UIViewController or UITableViewController. Here’s a link to Apple’s docs on categories and extensions. http://developer.apple.com/library/ios/#documentation/cocoa/conceptual/objectivec/chapters/occategories.html