Weak and strong properties in -viewDidUnload under ARC

Question

I am new to iphone development . I am using ARC for my project. As far as I understood using ARC we don\'t have to release any object manually. But , I have observed in some pla

Answer 1

When you are using unsafe_unretained, you should assign it to nil because it will not be assigned to nil implicitly, where is case of weak reference it will be assigned to nil implicitly.So in order to avoid any dangling reference you need to assign to nil in case of unsafe_unretained.