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日期:2025-04-30
2011年11月15日 - I was excited when this initially worked for me, but then I further researched __unsafe_unretained and found this in iOS Programming: The Big ......
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日期:2025-04-28
2011年12月3日 - I assume you are using ARC. Under ARC, the ownership qualification of the property must match the instance variable (ivar). So, for example, if you ......
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日期:2025-04-30
2012年11月20日 - I think I have a pretty good understanding of ARC and the proper use ... I am just surprised that I could set a property on a deallocated object (line ......
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日期:2025-04-29
2012年3月3日 - I'm just getting up to speed on ARC myself, but I've had the same error so perhaps I can try to help with this. __unsafe_unretained is used when ......
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日期:2025-04-29
2012年12月29日 - The easiest way is to use a __bridge cast and CFRelease : CFRelease((__bridge void *)foo->__bar);. Some other notes: Don't use the names __char ......
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日期:2025-05-01
__unsafe_unretained声明了一个不会自动nil的weak引用。当变量被释放,那么它就变成了一个野指针了。 __autoreleasing 用来修饰一个声明为(id *) 的函数的参数, ......
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日期:2025-04-27
2012年10月4日 - __unsafe_unretained . That sounds pretty scary. It's a new symbol added by ARC that's used to decorate pointers. It pops up in Xcode's ......
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日期:2025-04-30
2014年2月8日 - Just wondering why we using __unsafe_unretained? ... of Typhoon had __weak) and use __unsafe_unretained (you can see that I took special ......