Creating a new interface in iOS App xcode - ios

Question

Good morning,
I'm trying to create a new interface for implementing a Page View Controller but I'm doing something wrong because it's not working. I hope someone can see the error and help me with that because I'm a little bit stuck on this problem.
http://autograpp.com/Main.jpg
aupViewController.m
#import "aupViewController.h"
#import <FacebookSDK/FacebookSDK.h>
#import "SBJson.h"
#interface TutorialViewController ()
#end
#implementation TutorialViewController
- (void)viewDidLoad
{
// Create the data model
_pageTitles = #[#"Over 200 Tips and Tricks", #"Discover Hidden Features", #"Bookmark Favorite Tip", #"Free Regular Update"];
_pageImages = #[#"page1.png", #"page2.png", #"page3.png", #"page4.png"];
// Create page view controller
self.pageViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"PageViewController"];
self.pageViewController.dataSource = self;
PageContentViewController *startingViewController = [self viewControllerAtIndex:0];
NSArray *viewControllers = #[startingViewController];
[self.pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];
// Change the size of page view controller
self.pageViewController.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height - 30);
[self addChildViewController:_pageViewController];
[self.view addSubview:_pageViewController.view];
[self.pageViewController didMoveToParentViewController:self];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)startWalkthrough:(id)sender {
PageContentViewController *startingViewController = [self viewControllerAtIndex:0];
NSArray *viewControllers = #[startingViewController];
[self.pageViewController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionReverse animated:NO completion:nil];
}
- (PageContentViewController *)viewControllerAtIndex:(NSUInteger)index
{
if (([self.pageTitles count] == 0) || (index >= [self.pageTitles count])) {
return nil;
}
// Create a new view controller and pass suitable data.
PageContentViewController *pageContentViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"PageContentViewController"];
pageContentViewController.imageFile = self.pageImages[index];
pageContentViewController.titleText = self.pageTitles[index];
pageContentViewController.pageIndex = index;
return pageContentViewController;
}
#pragma mark - Page View Controller Data Source
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerBeforeViewController:(UIViewController *)viewController
{
NSUInteger index = ((PageContentViewController*) viewController).pageIndex;
if ((index == 0) || (index == NSNotFound)) {
return nil;
}
index--;
return [self viewControllerAtIndex:index];
}
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController
{
NSUInteger index = ((PageContentViewController*) viewController).pageIndex;
if (index == NSNotFound) {
return nil;
}
index++;
if (index == [self.pageTitles count]) {
return nil;
}
return [self viewControllerAtIndex:index];
}
- (NSInteger)presentationCountForPageViewController:(UIPageViewController *)pageViewController
{
return [self.pageTitles count];
}
- (NSInteger)presentationIndexForPageViewController:(UIPageViewController *)pageViewController
{
return 0;
}
#end
aupViewController.h
#import <UIKit/UIKit.h>
#import <FacebookSDK/FacebookSDK.h>
#import "PageContentViewController.h"
#interface TutorialViewController : UIViewController <UIPageViewControllerDataSource>
- (IBAction)startWalkthrough:(id)sender;
#property (strong, nonatomic) UIPageViewController *pageViewController;
#property (strong, nonatomic) NSArray *pageTitles;
#property (strong, nonatomic) NSArray *pageImages;
#end
#interface aupViewController : UIViewController <FBLoginViewDelegate>
#property (weak, nonatomic) IBOutlet FBLoginView *loginButton;
#property (weak, nonatomic) IBOutlet UITextField *txtUsername;
#property (weak, nonatomic) IBOutlet UITextField *txtPassword;
- (IBAction)loginClicked:(id)sender;
- (IBAction)backgroundClick:(id)sender;
- (IBAction)textFieldReturn:(id)sender;
#end
#interface LoginViewController : UIViewController
#property (weak, nonatomic) IBOutlet UITextField *txtUsername;
#property (weak, nonatomic) IBOutlet UITextField *txtPassword;
#property (weak, nonatomic) IBOutlet UITextField *txtMail;
- (IBAction)registerClicked:(id)sender;
- (IBAction)backgroundClick:(id)sender;
- (IBAction)textFieldReturn:(id)sender;
#end
#interface MainViewController : UIViewController
#end
PageContentViewController.h
#import <UIKit/UIKit.h>
#interface PageContentViewController : UIViewController
#property (weak, nonatomic) IBOutlet UIImageView *backgroundImageView;
#property (weak, nonatomic) IBOutlet UILabel *titleLabel;
#property NSUInteger pageIndex;
#property NSString *titleText;
#property NSString *imageFile;
#end
PageContentViewController.m
#import "PageContentViewController.h"
#interface PageContentViewController ()
#end
#implementation PageContentViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.backgroundImageView.image = [UIImage imageNamed:self.imageFile];
self.titleLabel.text = self.titleText;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
But I'm getting the error:
Cannot find interface declaration for TutorialViewController, did you mean LoginViewController?
And why is this not working? I really appreciate your help.
Thanks in advance.

Answer 1

The problem is that I had the wrong path in one of my files. I correct it and now everything is working. Thanks for your help.