目标 C: Memory Class 方法中的泄漏问题

Question

I am hitting the memory leak warning message as seen in the screenshot below.

I need some advise on how I can resolve this memory leak. Can I just do a [self release] at the end of the method?

Answer 1

You are not assigning the object returned to _sharedUserStockInfo so you are losing reference and leaking. Over that _sharedUserStockInfo will remain nil and method will return nil too.

Answer 2

+(UserStockInfo*)shareduserStockInfo{

     @synchronized([UserStockInfo class])
     {

         if(! _sharedUserStockInfo)
             _sharedUserStockInfo= [[self alloc]init];
         return _sharedUserStockInfo; 
     }

     return nil;
}