How to subclass UIScrollView and make the delegate property private

Question

Here is what I want to achieve:

I want to subclass an UIScrollView to have additional functionality. This subclass should be able to react on scrolling, so i have to

Answer 1

Another option is to subclass and use the power of abstract functions. For instance, you create

@interface EnhancedTableViewController : UITableViewController 

There you override some delegate method and define your abstract function

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    // code before interception
    [self bfTableView:(UITableView *)tableView didSelectRowAtIndexPath:indexPath];
    // code after interception
}

- (void)bfTableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {};

Now all you need to do is to subclass your EnhancedTableViewController and use your abstract functions instead of delegate ones. Like this:

@interface MyTableViewController : EnhancedTableViewController ...

- (void)bfTableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    //overriden implementation with pre/post actions
};

Let me know if there is anything wrong here.