iOS 7.1 removeFromSuperview crash

Question

My app didn\'t have any crash until iOS 7.1 came out. Now on any removeFromSuperview method, crash. For example: I got view controllers, and when I

Answer 1

sometimes crash for:

[myactualviewcontroller.view removeFromSuperview];

You shouldn't add or remove a controllers' view from a view hierarchy manually but rather rely in UIWindow's rootViewController, push your controller to a UINavigationController, etc., to get the system to add the view to private underlying superviews. Unless your creating a Custom Container View Controller, which I guess you aren't.

If you just want to handle views manually don't use view controllers as they won't get retained by the system and they won't get any rotation messages, etc. So using a view controller is pointless in that case anyway.

As for subview memory handling, subviews are retained by their superview, so as long as you don't keep a strong reference, you don't need to release subviews, just remove a common superview.

Again, if you properly use view controllers just releasing the controller will get rid of all views.

Finally, you should start using ARC.