Menu
I create a singleton like this:
class MyManager { private static let sharedInstance = MyManager() class var sharedManager : MyManager { return sharedInstance } } 
288
You don't destroy a singleton. A singleton is created the first time anyone needs it, and is never destroyed as long as the application lives.
If you really need to reset a singleton instance (which doesn't makes much sense actually) you could wrap all its inner members in a private object, and reinitialize via an explicit initialize() and reset() methods. That way, you can preserve your singleton istance and provide some kind of "reset" functionality.
To design C++ delete singleton instance, first, we need to make the singleton class destructor private, so, it can not be accessed from outside of the class. Hence, user cannot delete the singleton instance using the keyword “delete”.
If you have a regular object that you can't deinitialize it's a memory problem. Singletons are no different, except that you have to write a function to do it. Singletons have to be completely self managed. This means from init to deinit.
Just a simple example on how to dispose the current instance of a Singleton:
import UIKit class AnyTestClass { struct Static { private static var instance: AnyTestClass? } class var sharedInstance: AnyTestClass { if Static.instance == nil { Static.instance = AnyTestClass() } return Static.instance! } func dispose() { AnyTestClass.Static.instance = nil print("Disposed Singleton instance") } func saySomething() { print("Hi") } } // basic usage AnyTestClass.sharedInstance.saySomething() AnyTestClass.sharedInstance.dispose() Hope it might help.
83
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
