In my app, I am instantiating new view controllers instead of using segues because it looks better in animations as a result, my views keep running in the background. This causes large memory leaks.
My code to go back to the main screen is:
let mainStoryboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
let vc : UIViewController = mainStoryboard.instantiateViewControllerWithIdentifier("MainScreen") as UIViewController
self.presentViewController(vc, animated: false, completion: nil)
This view controller is still active in the background and therefore shouldn't be instantiated again. How do I do this.
When I close my view controller using the above code, it also does not unload it, it keeps running in the background. How do I make it unload as soon as the screen disappears.
I have tried doing
override func viewDidDisappear(animated: Bool) {
super.viewDidDisappear(animated)
view.removeFromSuperview()
view = nil
}
However this does not work properly. How do I properly destroy a view controller from memory when exiting a view controller in this manner.