iphoneobjective-cuiviewnsdictionarynscopying

UIView as dictionary key?

I want to have a NSDictionary that maps from UIViews to something else.

However, since UIViews do not implement the NSCopying protocol, I can't use them directly as dictionary keys.

Solution

  • You can use an NSValue holding the pointer to the UIView and use this as key. NSValues are copyable. but, if the view is destroyed, the NSValue will hold a junk pointer.