I added a variable of Timer to my class, and used its didSet observer to invalidate old value var timer: Timer? { didSet { oldValue?.invalidate() } } deinit { timer = nil } I thought this wou...

Starting with ios 9 it is not necessary to unsubscribe from notification center since ios handles this automatically, but prior to ios 9 developers had to manually call NotificationCenter.default.r...

I have a view controller that has three skscenes as children. When I transition from one to another, the old skscene doesn't get deallocated. I want it to get deallocated as if it was never there...

I'm creating a ViewController object an pushing it to a navigation controller. When the object is being popped from the stack - it is not being release and Deinit is not being called. What can be t...

I have a UIView similar to the one you can see below: class ViewTaskViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { override func viewDidLoad() { super.viewDidLoad(...

In Swift (I'm using 4.1), is there a way to do some clean-up in an extension when an object is being destructed? I have in mind the kind of code that would go in deinit(), but an extension can't de...

I would to know if it's possible, in my view controller, use a lazy property and in deinit method call a method of my lazy property only if it was initialized. Below some code: fileprivate lazy va...

the problem is in my project. But I also tried in new xcode draft project that Master-Detail Application one. I have created base Cell class and mapped the cell on storyboard. After delete operat...

I am exploring Swift value types particularly structs to get a better understanding of it's uses in different scenario. I was amazed to see how enum can be used to build Binary Search Tree using in...

When creating a subclass from another class, it is required to override the init() function, but you cannot override the deinit 'function'. Is this possible in Swift? Here is an example ...

I want to define a method that can destroy the instance it belongs to when a variable in this class has increased to a certain value. I attempted to do something like following: var calledTimes =...

I've been struggling on this for a while now, but I wasn't able to find a solution: I've got an iOS 9 app that supports all device families, uses size classes and is programmed with Swift 2.0. I'm...

private let DBItemCellIdentifier = "ItemCellIdentifier" private let DBItemSegueIdentifier = "ItemSegueIdentifier" class DBItemsViewController: UIViewController, UITableViewData...

Which one happens first? Zeroing (nilling) weak variable. deinit