How to inspect the responder chain?

Question

I\'m doing some crazy multiple documents inside a single window stuff with the document-based architecture and I\'m 95% done.

I have this two-tier document architect

Answer 1

You can also add a category to class UIResponder with appropriate method that is possible to be used by any subclass of UIResponder.

@interface UIResponder (Inspect)

- (void)inspectResponderChain; // show responder chain including self

@end

@implementation UIResponder (Inspect)

- (void)inspectResponderChain  
{
    UIResponder *x = self;
    do {
        NSLog(@"%@", x);
    }while ((x = [x nextResponder]));
}
@end

Than you can use this method somewhere in code as the example below:

- (void)viewDidLoad {
    ...
    UIView *myView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    [self.view addSubview:myView];
    [myView inspectResponderChain]; // UIView is a subclass of UIResponder
    ...
}