delegate

概述下面这个链接解决了我一直对delegating和delegated的疑问，不知道谁是谁。 Delegation and the Cocoa FrameworksThe delegating object is typically a framework object, and the delegate is typically a custom controller object. In a m

下面这个链接解决了我一直对delegating和delegated的疑问，不知道谁是谁。

Delegation and the Cocoa FrameworksThe delegating object is typically a framework object,and the delegate is typically a custom controller object. In a managed memory environment,the delegating object maintains a weak reference to its delegate; in a garbage-collected environment,the receiver maintains a strong reference to its delegate. Examples of delegation abound in the Foundation,UIKit,AppKit,and other Cocoa and Cocoa touch frameworks.

https://developer.apple.com/library/mac/documentation/General/Conceptual/DevPedia-CocoaCore/Delegation.html

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