Removing a view controller from UIPageViewController

Question

It\'s odd that there\'s no straightforward way to do this. Consider the following scenario:

1. You have a page view controller with 1 page.
2. Add another p

Answer 1

This problem exists when you are trying to change viewControllers during swipe gesture animation between viewControllers. To solve this problem, i made a simple flag to discover when page view controller is during transition.

- (void)pageViewController:(UIPageViewController *)pageViewController willTransitionToViewControllers:(NSArray *)pendingViewControllers {
    self.pageViewControllerTransitionInProgress = YES;
}

- (void)pageViewController:(UIPageViewController *)pageViewController didFinishAnimating:(BOOL)finished previousViewControllers:(NSArray *)previousViewControllers transitionCompleted:(BOOL)completed {
        self.pageViewControllerTransitionInProgress = NO;
}

And when i am trying to chenge view controller i am checking if there is transition in progress.

- (void)setCurrentPage:(NSString *)newCurrentPageId animated:(BOOL)animated {

    if (self.pageViewControllerTransitionInProgress) {
        return;
    }

    [self.pageContentViewController setViewControllers:@[pageDetails] direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:^(BOOL finished) {
    }

}