Using View Controller from storyboard programmatically in a Page View Controller

Question

I have an app with a storyboard. I am using several View Controller with segues to choose from a table view depending on the item selected. I want to have a page view controller in which the pages will be one or more view controller from the storyboard, even repeating them. I am trying to init the Page View Controller like this: .... self.dataSource=self;

UIViewController *initialViewController =[self viewControllerAtIndex:current]; NSArray *viewControllers = [NSArray arrayWithObject:initialViewController];   [self setViewControllers:viewControllers direction:UIPageViewControllerNavigationOrientationHorizontal  animated:NO completion:nil]; ....  - (UIViewController *)viewControllerAtIndex:(NSUInteger)index { if ((descriptions.count == 0) ||     (index >= descriptions.count)) {     return nil; }  current=index;  // Create a new view controller and pass suitable data. NSString *language = [[NSLocale preferredLanguages] objectAtIndex:0];  Description *description=[DBCompany getDescriptionById:language descriptionId:[[descriptions objectAtIndex:index] integerValue]];  UIViewController *viewController=nil; if(description.frame==100){     viewController=[[Company100ViewController alloc] init];     ((Company100ViewController*)viewController).companyId = companyId; } return viewController; }  - (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerBeforeViewController:(UIViewController *)viewController { if ((descriptions.count == 0) ||     (current-1 < 0)) {     return nil; }  return [self viewControllerAtIndex:current-1]; }  - (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController { if ((descriptions.count == 0) ||     (current >= descriptions.count)) {     return nil; }  return [self viewControllerAtIndex:current+1]; } 

However the viewcontroller appears in black. I think is because I am adding the UIviewcontroller class but not connecting it to any view, XIB, in my case with the storyboard.

How can I use the different view controller from the storyboard programmatically to use in a page view controller?

Answer 1

If you do viewController=[[Company100ViewController alloc] init] then yes this not a controller that is associated to a storyboard or an XIB. To load the controller with an XIB you have to do the following:

UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil]; Company100ViewController * vc = (Company100ViewController *)[sb instantiateViewControllerWithIdentifier:@"vc-identifier"]; 

In the storyboard make sure you set the view controller's id to vc-identifier; whatever identifier you choose.

Answer 2

Swift 3

let sb = UIStoryboard(name: "MainStoryboard", bundle: nil) let vc = sb.instantiateViewController(withIdentifier: "vc-identifier")