vishal vishal - 1 year ago 155
iOS Question

How to remove the bottom gap of UIPageViewController

I am using UIPageViewController to show images full screen, the UIViewController which is added to UIPageController as a sub view / child has the images being showed using ImageView.
Problem is the images arent comming fullscreen, instead the pagecontrol view's donts are appearing at the bottom and that space is completely wasted. Please check the image attached.

enter image description here

Here is the code

self.pageController = [[UIPageViewController alloc] initWithTransitionStyle:UIPageViewControllerTransitionStyleScroll navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal options:nil];

self.pageController.dataSource = self;
[[self.pageController view] setFrame:[[self view] bounds]];

NewsItemViewController *initialViewController = [self viewControllerAtIndex:0];

NSArray *viewControllers = [NSArray arrayWithObject:initialViewController];

[self.pageController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];

[self addChildViewController:self.pageController];
[[self view] addSubview:[self.pageController view]];
[self.pageController didMoveToParentViewController:self];

Here NewsItemViewController is UIViewController showing images and some text and The MainViewController implements UIPageViewControllerDataSource protocol and necessary methods in MainViewController.

I believe there has to be a way to do show the things in full screen.

* Also the MainViewController is a part of a storyboard if that matters.

Answer Source

Finally got the solution myself I just hide the page control from UIViewPageController and then extended the size of the UIPageViewController to cover up the gap left due to absense of page control.

 NSArray *subviews = self.pageController.view.subviews;
UIPageControl *thisControl = nil;
for (int i=0; i<[subviews count]; i++) {
    if ([[subviews objectAtIndex:i] isKindOfClass:[UIPageControl class]]) {
        thisControl = (UIPageControl *)[subviews objectAtIndex:i];

thisControl.hidden = true;
self.pageController.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height+40);
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