Swift setting object to nil does not release memory

Asked Apr 06 '15 at 13:34

Active Apr 06 '15 at 13:34

Viewed 2,309 times

I have an optional property of my class of type viewController

var vc : UIViewController()?

I later present that view controller as a popover using some custom code.

Upon dismissing the popOver controller I set the variable to nil

vc = nil

But the object is never release (and dealloc method of the viewcontroller is not called)

This worked in objective c but not in swift for me

Is there anything else I have to do in order to force an object to be released in swift (other than setting it to nil)?

asked Apr 06 '15 at 13:34

MobileMon

Setting to nil should be sufficient to release an object. You most likely have a problem in the code using `vc` - possibly some cyclic dependency is introduced somewhere. – Wojtek Surowka Apr 06 '15 at 14:05
same exact code that i use in obj c and works fine. I'm using a bridging header to call some obj c code in the process so maybe thats where the problem is – MobileMon Apr 06 '15 at 14:10
1

How are u checking to see if the object is released? – MendyK Apr 06 '15 at 18:18
1

@MendyK dealloc is never called on the viewcontroller, I put an "NSLog" in the dealloc method – MobileMon Apr 06 '15 at 19:02
Have you run Analyze: Shift-Command-B – zaph Apr 06 '15 at 20:30
Have you seen [this](http://stackoverflow.com/questions/9219030/dealloc-not-being-called-on-arc-app) answer? – MendyK Apr 07 '15 at 15:59
I'm noticing the same issue, checked the code for retain cycles – aryaxt Jun 12 '15 at 18:28
Yeah I never found an answer to this. Maybe Swift 2 will fix.... – MobileMon Jun 12 '15 at 20:49

0 Answers0