在 IOS 上向联系人添加图像时出现令人费解的内存泄漏
我目前在仪器中的这条线上有泄漏，每次调用时我都会泄漏几百K-
NSData *dataRef = UIImagePNGRepresentation([UIImage imageNamed:@"Icon.png"]);
ABPersonSetImageData(newRecord, (CFDataRef)dataRef, nil);
当我删除上面的线时，我很好。
整个程序中只提到了dataRef。我尝试 CFrelease-ing 它作为测试，但这会由于引用已释放的对象而导致崩溃。
我尝试将所有内容连接到一行中，
ABPersonSetImageData(newRecord,(CFDataRef) UIImagePNGRepresentation([UIImage imageNamed:@"Icon.png"]), nil);
但得到了相同的结果。
我第一次预计会发生泄漏，因为众所周知，Imagenamed 会缓存图像对象，而且在 iOS4 之前，该调用被报告发生泄漏，但我不认为会持续泄漏。
有什么想法吗？相关问题之前已经在这里提出过几次，但似乎没有人给出答案。
I currently have a leak on this line in instruments, I leak a few hundred K each time this is called-
NSData *dataRef = UIImagePNGRepresentation([UIImage imageNamed:@"Icon.png"]);
ABPersonSetImageData(newRecord, (CFDataRef)dataRef, nil);
When I rem out the above lines, I'm good.
dataRef is only mentioned here in the entire program. I tried CFrelease-ing it as a test, but that causes a crash due to referencing a deallocated object.
i tried concatenating it all into one line,
ABPersonSetImageData(newRecord,(CFDataRef) UIImagePNGRepresentation([UIImage imageNamed:@"Icon.png"]), nil);
but I got the same results.
I would half-expect a leak the first time, as Imagenamed is well known to cache the image object, and the call was reported to leak pre-iOS4, but I wouldn't expect ongoing leaks.
Any ideas? related questions have been raised here before a few times but no-one seemed to have an answer.
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我认为你不必担心那个物体。由于
UIImagePNGRepresentation将返回一个autoreleased对象，因此不会出现任何内存泄漏。由于dataRef是一个autoreleased对象，因此您不应手动释放它。I think you need not to worry about that object. Since
UIImagePNGRepresentationwill return you anautoreleasedobject, so there won't be any memory leak. SincedataRefis anautoreleasedobject you should not release it manually.