Question

I call ABAddressBookCopyPeopleWithName(book, fullname); which is supposed to return an array of ABRecords for all the names that match fullname from the AddressBook. Since this has a Copy in it s name, it s returning with a retain count of 1 which I should release. What if it couldn t find any matching names? Should I still release it? Is the empty object set to nil? Or is it just empty, and calling release will cause a crash?

Answer 1

Yep,如果其名称为“Copy”,你应将其释放。如果它回到一系列的ABRecords,它就把自己保留给你们。如果阵列空,找不到名字,你仍需要释放。

虽然如此,我没有利用这一职能,而且这个机会可能是一 case,不遵循可可命名公约。检查,采用这种方法,然后说:

NSLog(@"%d", [resultArray retainCount]);

这将告诉你,保留阵列是什么,因此,你可以百分之百地确保你在必要时释放。

希望帮助!

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