UINavigationController not returning - ios

Question

I am trying to set up a system of ViewControllers and navigate between them. I am trying to navigate between DefaultViewController and CreateViewController. I am new to iOS programming, so I am having a hard time figuring this out. I have mainly been trying to use code from the Utility App template. It would be great if someone could spot my mistake!
The log CreateViewController: cancel is reached when I click on my Cancel-button, but DefaultViewController: createViewControllerDidFinish is not.
This is the relevant code:
DefaultViewController.h
#import <UIKit/UIKit.h>
#import <Social/Social.h>
#import "CreateViewController.h"
#interface DefaultViewController : UIViewController <CreateViewControllerDelegate, UIWebViewDelegate> {
...
}
#property (strong, nonatomic) UIWebView *webView;
- (IBAction)create:(id)sender;
#end
CreateViewController.h
#import <UIKit/UIKit.h>
#import <Social/Social.h>
#class CreateViewController;
#protocol CreateViewControllerDelegate
- (void)createViewControllerDidFinish:(CreateViewController *)controller;
#end
#interface CreateViewController : UIViewController <UIWebViewDelegate> {
...
}
#property (weak, nonatomic) id <CreateViewControllerDelegate> delegate;
- (IBAction)cancel:(id)sender;
- (IBAction)submit:(id)sender;
#end
DefaultViewController.m
#import "AppDelegate.h"
#import "DefaultViewController.h"
...
#implementation DefaultViewController
...
#pragma mark - CreateViewController
- (void)createViewControllerDidFinish:(CreateViewController *)controller {
NSLog(#"DefaultViewController: createViewControllerDidFinish");
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
- (IBAction)create:(id)sender {
CreateViewController *vc2 = [[CreateViewController alloc] init];
[self.navigationController pushViewController:vc2 animated:YES];
}
#end
CreateViewController.m
#import "AppDelegate.h"
#import "CreateViewController.h"
...
#implementation CreateViewController
...
#pragma mark - Actions
- (IBAction)cancel:(id)sender {
NSLog(#"CreateViewController: cancel");
[self.delegate createViewControllerDidFinish:self];
}
- (IBAction)submit:(id)sender {
[webView stringByEvaluatingJavaScriptFromString:#"EntryCreate.submit();"];
}
#end

Answer 1

Using Navigation Controller,when you push a view controller you have to pop to dismiss
- (IBAction)cancel:(id)sender {
NSLog(#"CreateViewController: cancel");
[self.navigationController popViewControllerAnimated:YES];
}
No need for the controller instance Nav Controller is basically a stack and when you pop it removes from the top of the stack and move to the previous viewcontroller from where it is pushed.