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

Try to avoid using strong properties for IBOutlets.

Answer 2

I would like to say, that my last few days were spent on searching the web for my app memory problem. I was switching between 2 UIViewControllers. One of them had a scroll view which kept all subviews on it. It turned out that that UIVC loads a new scroll view without releasing the previous one. It took me several hours to realize it.

What I did was:

Looking for any kind of deadlocks inside the app, then searching for every variable that had a strong atributte and other desperate measures. But what really worked was:

 @IBAction func backBB(sender: UIBarButtonItem) {
    collectionView.removeFromSuperview()
    self.frontView.removeFromSuperview()
    eventsPhotos.removeAll(keepCapacity: false)
    symbolContainerView.removeFromSuperview()
    self.myScrollView.removeFromSuperview()
    dismissViewControllerAnimated(true, completion: {})
}

I manually removed some views and contents. I've done it in "Back" button but you can do this in other methods like viewWillDisappear(animated: Bool).

Once I made this, my allocation chart in the developer instruments showed the memory allocation going up and down... And it was solved...

Answer 3

Nil the popover on dismiss.

[menuPopup_ dismissPopoverAnimated:YES];
menuPopup_ = nil;