Question

I have a UIViewController for an iPad app where the user can pick one of 80 puzzles by touching one of 80 buttons. Rather than manually connect 80 UIButton to an IBAction method, is there any way to do this programmatically or in some other clever way?

Another option of course to build a custom view and do all the work myself but I would like to know if the above can be made easier.

Answer 1

something like this might work:

- (void) viewDidLoad
{

for ( UIView* potentialButton in view.subviews )
{
  if ( [potentialButton isKindOfClass: [UIButton class]] )
  {
     UIButton* actualButton = (UIButton*) potentialButton;
     [actualButton addTarget: self action: @selector( onButtonPress: ) forControlEvents: UIControlEventTouchUpInside];
   }
}

...

}

- (void) onButtonPress: (UIButton*) sender
{
  // determine which button here, by tag, or perhaps by button title, etc.
}