dealloc in Swift

Question

I would like to perform some cleanup at the end of a view controller\'s life, namely to remove an NSNotificationCenter notification. Implementing dealloc<

Answer 1

removing observer is required before deallocation otherwise crash would happen. It can be done using

deinit {
    // perform the deinitialization
    print("deinit")

    removeObserver(self, forKeyPath: kSelectedViewControllerKey, context: nil)
    removeObserver(self, forKeyPath: kSelectedIndexKey, context: nil)

}