I have a MasterViewController displaying Items. Selecting an Item (ItemA), displays images of ItemA in a DetailViewController. The DeatilViewController contains a scrollView, displaying all the images.

When tableView:didSelectRowAtIndexPath is called, the images is added to an UIImageView, that is tagged and added as a subview to a scrollview.

NSUInteger i;
for (i = 1; i <= numberOfImages; i++)
{
     NSString *imageName = [ItemAImages objectAtIndex:i-1];
     UIImage *image = [UIImage imageNamed:imageName];
     UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
     imageView.tag = i; 
     [scrollView addSubview:imageView];
}

Works fine. But when I go back to the MasterViewController, and selects a ItemB, the ItemA is still displayed, like the iPhone simulator refuses to forget the previous scrollview,containing ItemA images. I have tried

[subview removeFromSuperview];

which results in either no scrollview at all, or no effect. Depending on when this method is called. How can I "reset" the scrollview for the next Item?