如何在头文件之外分配弱引用？

Question

self.locationSearchBar.delegate = self;

I believe I have a retain cycle occurring here, and I can't for the life of me remember how to give the delegate a weak reference to self. Can someone tell me how to get this done?

Answer 1

If locationSearchBar is an instance of UISearchBar , delegate will already be an assign ed property declared as

@property(nonatomic, assign) id<UISearchBarDelegate> delegate

And if so, your code snippet is fine.

Otherwise, make sure delegate is declared as

@property (weak) id <YourProtocol> delegate

within the class's header.