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I’m using Xcode 4.2. I set the deployment target as 4.2. I created an app with the view hierarchy as UIViewController > UITabBarController > UINavigationController > UIViewController.It is working fine with iOS 5. But for iOS 4.2, the viewWillAppear method is not getting called. what would be the reason for this?
When you have a custom UIViewController as top level VC, you need to pass the viewWillAppear event to the UITabBarController