Question

I had developed an app and now I’m using Instruments to see the memory usage. I have a problem understanding the retain/release process of my object. This is what Instruments says:

The retain count increase when I add my object into an array, when I add it on my view and when I take off from the array.
So, when I use removeFromSuperview the object retainCount will never be zero, so the object don’t release the memory.

EDIT 1:
I forgot to say i’m using ARC.

EDIT 2:
I describe exactly what happen :
I create the object together other objects in a class called NKLevelGenerator. Into it i alloc the NKIngredients and then i add all to a NSArray which will be returned. Here the retain count of every object is 2. In my NKLevelVC, my ViewController, i use this instruction :

[level addObjectsFromArray:[levelGenerator level1WithDelegate:self ciotola:ciotola bagliore:bagliore difficulty:NKDifficultyHard]];

Object level is a NSMutableArray that i alloc and init in viewDidLoad.
From here i call another method which performs this operations :

- (void)insertInArrayRandomly {
    for (int i=0; i<[level count]; i++) {
        [ingredienti insertObject:[level objectAtIndex:[[indexes objectAtIndex:i]integerValue]] atIndex:i];
    }
}

Object ingredienti is another NSMutableArray that I alloc and init in viewDidLoad. indexes is an array of NSInteger which contains random indexes to extract NKIngredient object randomly.
Then i’m doing this :

NKIngredient *ing = [ingredienti objectAtIndex:index];
[[self view] insertSubview:ing belowSubview:navBar];
[ing animateIngredient];
[ingredienti removeObject:ing];

Answer 1

Before looking into Instruments have you tried the Static Analysis of your code? It may help for simple memory problems.

But the very first thing to check is: Did you follow the Golden Rule?

The Golden Rule being: For each alloc, copy or retain you must use one, and only one, releaseor autorelease.

This is the most important rule for memory management without ARC. So the fact that you object is retained by th array is none of your business, just remember what you have retained, allocated or copied and release it.

PS: Next time, your code would be much more helpful than the Instruments screenshot.