iOS 6 - viewDidUnload migrate to didReceiveMemoryWarning?

Question

So with viewDidUnload deprecated as of iOS 6, what do I need to do now?

Delete it, and migrate all of it\'s contents in didReceiveMemoryWarning

Answer 1

In most typical cases, this method can be used in place of the old viewDidUnload.

// The completion handler, if provided, will be invoked after the dismissed controller's viewDidDisappear: callback is invoked.
- (void)dismissViewControllerAnimated: (BOOL)flag completion: (void (^)(void))completion NS_AVAILABLE_IOS(5_0);

Swift 2017 syntax:

override func dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
    if (yourChildViewController  != nil) {
      print("good thing we did this!")
    }
    yourChildViewControllerProperty = nil
    super.dismiss(animated: flag, completion: completion)
}