Question

I’m getting a memory leak when I`m trying to reset a table view, I thought I could just put release before, but this doesn’t help.

What do I need to do here ?

-(void) resetTable{

    recordOffset = 10;
    rOFactor = 0;
    booShowMoreCell = false; 
    self.transactionsArray = [[NSMutableArray alloc] init]; // leak here
}

Answer 1

Assuming that transactionsArray is a retained property, the problem you are having is that the NSMutableArray is being retained twice.

When you set a retained property it releases the old value, and retains the new (incoming) value. The alloc method also retains the object.

So

//   \/--- retain count = 2               \/-- retain count = 1
self.transactionsArray = [[NSMutableArray alloc] init];

The shortest way to resolve this is autorelease the NSMutableArray:

self.transactionsArray = [[[NSMutableArray alloc] init] autorelease];

There’s a convenience method way for the above line:

self.transactionsArray = [NSMutableArray array];