WTVC!?! What-the-View-Controller?!?! This UIViewController+Logging class category utilizes method swizzling to help you log which view is currently being displayed. This comes in handy when investigating a very large project with lots of view controllers that are hard to track down. Simply import this in your App Delegate.

__AppDelegate.m

#import "UIViewController+Logging.h"

UIViewController+Logging.h

#import <UIKit/UIKit.h>

@interface UIViewController (Logging)

@end

UIViewController+Logging.m

#import "UIViewController+Logging.h"
#import <objc/runtime.h>

@implementation UIViewController (Logging)

-(void)swizzled_viewDidAppear:(BOOL)animated
{
    NSLog(@"Current View Did Appear Class: %@", NSStringFromClass(self.class));
    [self swizzled_viewDidAppear:animated];
}

-(void)swizzled_viewDidLoad
{
    NSLog(@"Current View Loaded Class: %@", NSStringFromClass(self.class));
    [self swizzled_viewDidLoad];
}

+ (void)load
{
    Method original, swizzled;
    original = class_getInstanceMethod(self, @selector(viewDidAppear:));
    swizzled = class_getInstanceMethod(self, @selector(swizzled_viewDidAppear:));
    method_exchangeImplementations(original, swizzled);
    
    
    
    original = class_getInstanceMethod(self, @selector(viewDidLoad));
    swizzled = class_getInstanceMethod(self, @selector(swizzled_viewDidLoad));    
    method_exchangeImplementations(original, swizzled);
    
}
@end