objective-c singleton memory deallocation

问题:

Should I somehow release shared object (on which singleton is based) when my application terminates if no garbage collector used (iPhone environment)?

回答1:

When an application exits, all its memory is released. So it really does not matter if you release objects at all, so long as you don't use too much memory while running.

Even when the strategy changes in 4.0, a single small object won't have much impact; it will still be released along with the rest of the application when it terminates.

回答2:

As an aside, you might find this useful:

http://cocoawithlove.com/2008/11/singletons-appdelegates-and-top-level.html