潜在的 iOS 内存泄漏问题与 CFUUIDBytes 相关

Question

我有一个静态方法定义如下：

+(NSString*)getNewIdAsBase64
{
    // Grab new uuid
    CFUUIDRef originalUuid = CFUUIDCreate(nil);//create a new UUID
    //NSLog(@"Step a: original uuidObj = %@",originalUuid);
    CFUUIDBytes originalBytes = CFUUIDGetUUIDBytes (originalUuid);//ISSUE

    NSData* data88  = [NSData dataWithBytes: &originalBytes length: sizeof(originalBytes)];
    NSString* hugo = [data88 base64EncodedString];

    return hugo;

}

当我在我的项目上运行“Product->Analyze”时，被 //ISSUE 注释的代码会引发以下问题：

Potential leak of an object alocated on line 23 and stored into 'originalUuid'

我做错了什么，如何修复它？

谢谢

- whatdoesitallmean

Answer 1

即使您正在使用ARC，也需要释放您创建的对象：

+(NSString*)getNewIdAsBase64
{
    // Grab new uuid
    CFUUIDRef originalUuid = CFUUIDCreate(nil);//create a new UUID
    //NSLog(@"Step a: original uuidObj = %@",originalUuid);
    CFUUIDBytes originalBytes = CFUUIDGetUUIDBytes (originalUuid);//ISSUE

    NSData* data88  = [NSData dataWithBytes: &originalBytes length: sizeof(originalBytes)];
    NSString* hugo = [data88 base64EncodedString];

    CFRelease(originalUuid);
    return hugo;

}

- rckoenes