Child View Controller shifts down

Question

I have a TutorialsViewController that has a PageViewController added programmatically as:

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additi         


        

Answer 1

I've solved this problem with the help of this answer: iOS 8 UIPageViewController Applying Constraints After Transitions by replacing in PageViewController's child all constraints on top layout guide to view.