修復ARC中潛在的內存泄漏

以下單例類（SharedManager）輔助方法可能會導致保留週期。在靜態分析器中獲取警告：「在線路上分配的對象的潛在泄漏...」我該如何解決？修復ARC中潛在的內存泄漏

我確實試過讓伊娃uuid __weak但我分析時仍然會出現警告。

NSString *__weak uuid = (__bridge NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuidObject);

感謝

被稱爲班上像這樣：

myUUID = [SharedManager generateUUID]; 



+ (NSString *)generateUUID 
{ 

CFUUIDRef uuidObject = CFUUIDCreate(kCFAllocatorDefault); 
NSString *uuid = (__bridge NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuidObject); 
CFRelease(uuidObject); 

    return uuid; 

}

來源

2012-03-19 Slinky

NSString *uuid = (__bridge_transfer NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuidObject);

這是否刪除警告？

來源

2012-03-19 21:33:36

彼得，是的，的確如此。謝謝。需要了解__bridge_transfer是什麼。 – Slinky 2012-03-19 21:39:41

看看http://clang.llvm.org/docs/AutomaticReferenceCounting.html#objects.operands.casts – 2012-03-19 21:43:08

完美。謝謝 – Slinky 2012-03-19 21:46:05

這裏是釋放了一個途徑：

- (NSString *) uuid 
{ 
    CFUUIDRef uuidRef = CFUUIDCreate(NULL); 
    CFStringRef uuidStringRef = CFUUIDCreateString(NULL, uuidRef); 
    CFRelease(uuidRef); 
    NSString *uuid = [NSString stringWithString:(NSString *) 
    uuidStringRef]; 
    CFRelease(uuidStringRef); 
    return uuid; 
}

_{來源：http://www.cocoabuilder.com/archive/cocoa/217665-how-to-create-guid.html}

來源

2012-04-13 15:30:09 JOG

修復ARC中潛在的內存泄漏

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