Why ARC is not deallocating memory after popViewController

Question

I\'m pushing and popping ViewControllers in UINavigationController.

I\'m tracking the memory consumption of my app. While pushing the new viewController the memory consu

Answer 1

Make sure your viewcontroller (A) has no reference of any other viewcontroller (B) or any object it has. Incase it has then make sure that VC-B is not referencing back VC-A. If it has some reference back to VC-A then make it a weak property. Otherwise strong retain cycle will keep the VC in memory even if its popped.

• Another thing is to check wether theres any closure in your VC, check its body if it is referencing any property or method with self then make a Capture list to avoid retain cycle as "Closures are Reference Types"

• Check if theres any NSNotification observer you are not releasing

• Make a print call in deinit method to check wether its deallocated.

For further understanding on memory management:

• https://medium.com/mackmobile/avoiding-retain-cycles-in-swift-7b08d50fe3ef
• https://www.youtube.com/watch?v=GIy-qnGLpHU